When is a CMRL NOC required?

CMRL defines a Metro Protection Zone around its corridors. A development or construction proposal within this zone must be referred to CMRL for an NOC through the relevant approval authority.

For a completed corridor, measure from the edge of the metro structure. For a proposed or under-construction corridor, measure from the centreline of the alignment. The policy uses different reference points, so distance from the nearest track alone may give the wrong answer.

Rules near a completed underground metro corridor

The underground protection zone has two parts:

• Zone I: The area above the underground structure, plus 3.5 m beyond each edge.
• Zone II: The next 7.5 m on each side.

In Zone I, deep or pile foundations, ground anchors, borewells, boreholes and blasting are prohibited. Basement excavation, utility work and underground passageways are restricted and require CMRL’s technical consideration. Where development falls in Zone I, the policy also sets a maximum allowable pressure of 60 kPa at the tunnel top.

In Zone II, excavation, borewells and boreholes are restricted. Proposed pile foundations must meet the policy’s debonding requirement.

Rules near a completed elevated metro corridor

For elevated and at-grade structures, Zone I extends 2 m from the structure’s edge. Zone II covers the next 3 m.

CMRL prohibits construction, excavation, crane operation, scaffolding, utility work, storage of goods and explosives in Zone I. In Zone II, activities such as utility work, anchor drilling and work involving vibration are restricted. CMRL may permit a restricted activity only after reviewing its safety implications.

What about proposed or under-construction metro lines?

For these corridors, the protection zone extends 50 m on either side of the proposed alignment’s centreline, whether the planned metro section is underground or elevated. A property within that distance is subject to CMRL review when development or construction is proposed. Being within the zone does not, by itself, mean the land will be acquired or that construction will automatically be refused. The exact alignment and proposal must be checked.

Does an existing building need a CMRL NOC?

The policy deals with development and construction proposals. It does not state that an owner needs a retrospective NOC simply because an existing building stands near a metro line. If the owner later proposes an extension, redevelopment, basement or other construction, the new proposal may require CMRL review. Land acquisition, if proposed for that property, is a separate matter to check.

How do you apply for the CMRL NOC?

The approval authority—such as CMDA, GCC or another local body—forwards the application to CMRL directly or through the Single Window Portal. The submission must include a land plan, a design report covering the foundation and base-pressure calculations, structural drawings and relevant supporting documents.

CMRL verifies the site against its alignment, checks any land acquisition issue, and conducts a structural review. It then issues the NOC or communicates a rejection through the approval authority. The policy sets a 30-day reply period from receipt of all necessary documents.

Is a CMRL NOC needed for land regularisation or reclassification?

No. The policy expressly says a CMRL NOC is not required for land regularisation or reclassification, even if the property is within the Metro Protection Zone. This exception concerns the CMRL NOC; the applicant must still follow the applicable process for regularisation or reclassification.

Before preparing building plans near a metro corridor, establish the status and exact location of the alignment. That determines the applicable protection zone and whether the proposal must go to CMRL.

Check Metro Proximity Before You Buy or Build

With LandLens One, buyers, sellers and developers can ask Veritas a simple question: “Does a metro line pass near this property?” Provide a survey number, address or map pin to start the check. LandLens lists a metro-distance check that can flag nearby lines, helping you identify whether the CMRL NOC rules need closer attention before a purchase or development plan. Confirm the exact alignment and NOC requirement with CMRL and the approval authority for the specific property.

The plan is to connect the Chennai Metropolitan Development Authority (CMDA), Directorate of Town and Country Planning (DTCP), and urban and rural local bodies on one platform. On 25 September, a CMDA official also said the proposed system would bring in departments that issue no-objection certificates (NOCs).

For an applicant, the goal is a more connected approval process. SPEED has not yet been verified as a publicly available service, however. The government has not published a confirmed launch date or detailed applicant workflow in the sources reviewed as of 28 September 2026. Its promised speed improvements should therefore be treated as an aim, not an achieved result.

How is SPEED different from STAR 3.0 and Anywhere Registration?

STAR 3.0 has been rolled out in phases and includes services such as paperless registration and digital deed preparation. Under Anywhere Registration, online, presence-less registration became compulsory for specified first sales of plots and apartments from 17 August 2026. A registering officer still examines the document before registration.

Think of a new apartment project: planning approval for the building is the kind of task SPEED is intended to handle. Registration of an individual flat buyer’s sale deed belongs to STAR 3.0 and, if eligible, its Anywhere Registration process. Approval to build and registration of a sale deed are separate steps.

How Are Building Approvals Obtained Today?

At present, a landowner, eligible leaseholder or authorised power-of-attorney holder applies online to the relevant planning authority. For a developer’s project, the developer typically coordinates the application with the owner’s authorisation, while a registered architect or engineer prepares and submits the required drawings. The authority checks the plans, property documents and applicable building rules, seeks any required clearances, and issues planning permission or a building permit if the proposal meets the requirements. The exact process depends on the property’s location and the type of construction. SPEED is intended to bring these approval processes onto a more connected platform, but its public application process has not yet been confirmed.

Need Help With Building Plan Approval?

When SPEED becomes operational, a faster approval process could help developers and owners. Buyers should still check the actual approved plan, its conditions, and whether the property matches it.

Verified.RealEstate manages building plan approval applications for property owners and developers in Tamil Nadu. We help review your property documents and proposed plans, identify potential approval issues, and guide you through the application process with the relevant authority. If you are buying a property, we can also help verify its existing approvals and check whether the construction matches the approved plan.

The portal also provides application manuals, document checklists, NOC guidance, approved-plan information and details of registered professionals.

Planning permission and building licence are different

Planning permission confirms that a proposed development complies with the Tamil Nadu Town and Country Planning Act, applicable land-use plans and building rules.

A building licence is issued by the concerned local body. Depending on the proposal, an applicant may need both approvals before starting construction.

What services are available?

The portal handles applications connected with:

• Layout and subdivision approval
• Building-plan approval
• Land-use reclassification
• Commencement notification
• Plinth-level inspection
• Last-storey inspection
• Completion certificate

It also routes applications to the appropriate planning authority or local body.

How does the approval process work?

The applicant and registered professional submit the property details, application and digital drawings online.

After the scrutiny fee is paid, the application is routed to the concerned authority. Officials examine the land ownership, approved land use, road access, building rules and required NOCs. A site inspection may also be conducted.

If the proposal complies with the rules and the applicable charges are paid, planning permission and the local-body building licence are issued through the relevant process.

What documents are normally required?

The exact documents depend on the property’s location and the type of development. Common requirements include:

• Sale deed, lease deed or other ownership document
• Patta or TSLR
• FMB sketch
• Encumbrance Certificate
• Survey number and subdivision details
• Site plan and key plan
• Floor plans, elevations and sections
• Road-width sketch
• Applicable NOCs

Adangal, earlier parent documents, legal opinion and additional departmental clearances may be required in certain cases.

Is self-certification available?

The portal provides a self-certification route for eligible small buildings.

The official manual currently describes this facility for Ground or Ground+1 buildings not exceeding seven metres in height, with a built-up area of up to 3,500 sq.ft on a plot of up to 2,500 sq.ft. 

Tamil Nadu has announced plans to extend the self-certification scheme to eligible residential buildings with a built-up area of up to 5,000 sq.ft, covering G+2 or Stilt+3 structures, subject to formal implementation and applicable conditions.

If the property requires an NOC or exceeds these limits, the applicant must follow the normal building-plan approval process.

How long is planning permission valid?

The current DTCP Page states that planning permission is valid for eight years from the date of issue.

Who approves the application?

The approving authority depends on the location, building size, height, use and proposal category.

• CMDA handles planning matters within the Chennai Metropolitan Area.
• DTCP and its subordinate offices handle areas outside CMDA.
• Local bodies can approve eligible proposals under powers delegated to them.

The portal’s Know Your Local Body facility can help applicants identify the correct office.

What should property buyers verify?

A local-body or Village Panchayat approval alone should not be mistaken for DTCP layout approval.

Before purchasing a plot, buyers should verify:

• Planning authority approval number
• Approved layout drawing
• Survey number and subdivision
• Land classification
• Approved land use
• Planning jurisdiction
• Road access and road width

Construction on an unapproved plot or construction that deviates from the sanctioned plan may be treated as unauthorised and can face enforcement action.

The Online Planning Permission Portal is therefore a useful official source. However, its FAQ should be treated as a starting point—not as the only legal authority for making a property decision.

Disclaimer: Planning requirements vary according to the property’s location, land classification, proposed development and subsequent amendments. Owners should verify the latest rules and consult a registered professional or competent authority before purchasing land or starting construction.

The proposed measures introduce

• self-certification for certain small buildings,
• third-party certification for specified projects,
• higher approval limits for local authorities and
• a simplified process for converting nanjai land in unplanned areas.

These changes could make the approval process more convenient for homeowners, small businesses, industrial entrepreneurs and property developers.

Simplified Certification and Approval for Small Buildings

Self-Certification for Small Commercial Buildings

For the first time, self-certification-based building approval will be introduced for small commercial buildings with an FSI area of up to 1,500 sq ft.

Under this system, eligible applicants can certify that their proposed buildings comply with the applicable building regulations and obtain approval without making repeated physical visits to local-body offices.

Third-Party Certification for Residential Buildings

Third-party certification means an approved professional or agency verifies that a building complies with the required rules before the government issues the approval.

For residential buildings with an FSI area of up to 8,070 sq ft (750 sq m), compliance with building rules can be certified by an approved third party.

Third-party certification means that an approved professional or agency verifies whether the proposed building complies with the required regulations before the government issues approval. Once the certification is completed, building approval can be issued.

Third-Party Certification for Small Commercial Buildings

Third-party certification will also be introduced for commercial buildings with an FSI area of up to 3,230 sq ft (300 sq m).

Approved third parties will verify whether the proposed building complies with the applicable regulations before approval is granted. For small commercial projects, this could significantly reduce the administrative burden associated with obtaining building approval.

Why the New Certification System Is Being Introduced

The common objective of these measures is to simplify and speed up the building-approval process by reducing dependence on repeated visits to local government offices. By allowing eligible applicants to use self-certification or approved third-party verification, the system is intended to:

• Reduce visits to local offices
• Speed up building approvals
• Reduce administrative delays
• Make the approval process more convenient and transparent
• Encourage small-scale commercial activity
• Make it easier to start and operate businesses
• Support MSMEs and small traders

Overall, the new system is designed to shift routine compliance verification away from lengthy government procedures while retaining regulatory oversight.

Faster Approvals for Industrial Buildings

Industrial entrepreneurs will also get a simplified approval mechanism through third-party certification.

The system will apply to industrial buildings located in:

• SIDCO layouts
• SIPCOT layouts
• ELCOT layouts
• Other approved industrial layouts

The proposed limit is 26,900 sq ft (2,500 sq m).

An approved third party will verify compliance with building regulations before the approval is issued. The measure is aimed at reducing the need for entrepreneurs to repeatedly approach district-level offices and facilitating faster establishment or expansion of industrial facilities.

Local Bodies Get Greater Powers for Residential Approvals

Another significant change is the proposed increase in the building-approval powers of local bodies.

Corporations and Municipalities

The approval limit for residential buildings will increase from 10,000 sq ft to 16,140 sq ft (1,500 sq m).

Town Panchayats and Village Panchayats

The limit will increase from 10,000 sq ft to 12,912 sq ft (1,200 sq m).

This means a larger number of smaller residential building applications can potentially be processed directly at the local-body level instead of being referred to higher authorities.

Commercial Building Approval Limits Increased

The approval powers of all local bodies for commercial buildings will also be expanded.

The existing limit of 2,000 sq ft will increase to 5,380 sq ft (500 sq m).

This is particularly significant for small traders and businesses, as more commercial building applications can be handled at the local-body level.

Nanjai Land Conversion Procedure to Be Simplified

The proposed changes also address the conversion of nanjai (wet agricultural) land in unplanned areas.

At present, converting nanjai land for non-agricultural purposes such as residential, commercial or industrial development requires a No Objection Certificate (NOC) from the District Collector.

Under the proposed simplified procedure, the required clearances will instead be obtained from the relevant departments, including:

• District office of Town and Country Planning
• Joint Director of Agriculture
• Water Resources Department
• Revenue Divisional Officer

This is intended to streamline the process by obtaining clearances directly from the departments responsible for the relevant aspects of land use.

Does This Mean Nanjai Land Can Now Be Automatically Converted? NO

The proposed change does not automatically permit development on agricultural or nanjai land. Watercourses, agricultural protections, departmental rules, land classification, planning status and required approvals must still be verified before development.

What These Changes Mean for Property Owners, Businesses and Buyers

Tamil Nadu’s proposed reforms aim to make building approvals faster, more decentralised and less dependent on physical visits to government offices.

Higher local-body limits, self-certification and third-party certification could reduce delays for eligible residential, commercial and industrial projects.

However, simplified approvals do not remove regulatory requirements. Projects must still comply with planning, building, environmental, land-use and departmental rules.

The reforms may ease approval procedures, but due diligence remains essential, especially for agricultural land and environmentally sensitive areas.

❌ These proposed reforms may be modified when they are implemented, based on practical requirements and administrative considerations. Stay connected with Verified Real Estate for the latest updates as these proposals are officially implemented and the detailed rules are notified.

Official announcement:
https://cms.tn.gov.in/cms_migrated/document/announcements/hud_t_ann_2026_27.pdf

TNHB website:
https://tnhb.tn.gov.in/

Disclaimer: This article is based on the Tamil Nadu Government’s 2026–27 Assembly announcement. Project prices, sizes, eligibility, timelines and booking conditions have not yet been released and may change when TNHB publishes the detailed project notifications.

The secret to a successful, stress-free construction project lies in combining cutting-edge land intelligence with a transparent, execution-focused building partner.

Here is how you can use Verified.RealEstate’s LandLens Build Scope calculator alongside their premier Construction Services to protect your investment and bring your dream property to life.

Phase 1: Know What You Can Build (Before You Buy the Land)

The biggest mistake property buyers make is purchasing a plot assuming they can build whatever they want. In reality, local regulations from the CMDA (Chennai Metropolitan Development Authority) and DTCP (Directorate of Town and Country Planning) dictate exactly what can happen on a piece of land.

Instead of guessing, the LandLens Build Scope calculator acts as your AI-powered property intelligence engine. By running a plot through 25+ specialized development calculation modules, it provides an instant snapshot of your land’s true potential.

What the Build Scope Engine Evaluates:

• FSI/FAR Calculation: Determines your maximum buildable floor area based on plot location, zone classification, road width, and whether you qualify for Premium FSI or an affordable housing bonus.
• Height Restrictions: Flags if your plot sits in sensitive zones, such as an Airport Authority of India (AAI) funnel zone, HACA heritage buffers, or has road-width multipliers that limit height.
• Setback Requirements: Instantly calculates the front, side, and rear setbacks required by CMDA/DTCP building rules based on your plot’s dimensions and height.
• Ground Coverage & Parking Norms: Outlines maximum built-up ground area and calculates the exact number of car and two-wheeler spaces required for your building type.
• Required NOCs List: Provides a clear checklist of mandatory clearances (Fire NOC, Environmental Clearance, PWD, TNPCB) needed before you break ground.

Phase 2: A 3-Step Hassle-Free Construction Process

Once the data proves your plot is a viable investment, the next challenge is physical execution. Verified.RealEstate bridges the gap between digital planning and physical brick-and-mortar reality through a seamless, 3-step construction framework.

1.Provide Requirements & Data Mapping:Step 1.

Submit your plot details alongside your Build Scope data. An expert architectural and design team maps your requirements against local building rules to draft compliant blueprints, followed by a transparent quote and timeline.

2.End-to-End Construction & Management:Step 2.

The project transitions to the field. Verified.RealEstate handles structural engineering—soil testing, excavation, concrete casting, and structural reinforcement., skilled labor management, material sourcing matching your budget, and strict quality control inspections—all while keeping you updated remotely.

3.Project Completion & Delivery:Step 3.

Your completed property is handed over fully certified (including helping secure necessary Sub-Division, Layout, Completion, or Occupancy certificates) exactly to your specifications.

The Verified.RealEstate Trust Guarantees

Building a home or commercial project shouldn’t require you to quit your day job to micro-manage a construction site. Verified.RealEstate introduces accountability to the construction sector through three distinct promises:

1. Live Progress Tracking

No more wondering if the builders showed up. You can track your site’s progress live from the comfort of your home via video feeds from CCTV cameras installed directly on-site, alongside weekly cost and milestone updates sent over WhatsApp.

2. On-Time Delivery Promise

Delays cost money. If a project is delayed due to the builder’s mistake, Verified.RealEstate commits to paying 0.5% of the total construction value per month as rent for the delayed duration.

3. A 10-Year Structural Warranty

Peace of mind shouldn’t expire when the keys are handed over. Your project is backed by a comprehensive 10-Year Warranty covering structural integrity and workmanship defects at zero additional cost.

Who Benefits Most?

Whether you are looking to purchase 4 credits to analyze a single starter plot (minimum purchase ₹999) or managing high-volume enterprise development portfolios, this integrated pipeline is custom-built for the real estate ecosystem:

• Property Buyers: Avoid buying land restricted by invisible FSI caps or environmental zones.
• Architects & Planners: Accelerate early-stage feasibility studies using instant parametric reports.
• Builders & Developers: Maximize saleable area calculations before making land acquisition offers.
• Banks & NBFCs: Authenticate property claims and gauge financial risks on loan applications.

Stop guessing and start building with certainty. Leverage the power of LandLens Build Scope to run the numbers, and let Verified.RealEstate manage the heavy lifting from foundation to finish.

Conclusion

Don’t leave your investment to chance. By pairing the instant regulatory data of the LandLens Build Scope calculator with Verified.RealEstate’s fully managed construction team, you eliminate the risks of illegal building and chaotic site management. You get total clarity on day one regarding exactly what you can build, followed by a transparent, tech-tracked execution that takes you safely from an empty plot to a perfectly finished structure.

The issue recently gained attention after discussions around house ramps, extensions, and road encroachments raised questions about when authorities can legally intervene. While demolition is often seen as a last resort, property owners should understand that several types of violations can trigger enforcement proceedings.

What Can Lead to a Demolition Notice?

One of the most common reasons is the construction of buildings without obtaining the required planning permission. Authorities may also act when a building differs substantially from the approved plan.

🚩This includes:

• constructing additional floors,
• reducing mandatory setbacks,
• increasing the built-up area beyond approved limits, or
• changing the approved usage of a property.

Homeowners often make alterations believing they are minor improvements. However, enclosed balconies, extended staircases, covered terraces, front ramps, compound wall extensions, car porch expansions, and projections into setback areas can all become violations if they are not covered by the sanctioned plan.

🚩Another major trigger is encroachment on public land like

• Structures extending into roads,
• footpaths, road margins, drainage channels, parks,
• water bodies, or
• government land frequently attract notices from local authorities.

Such encroachments may interfere with public access, infrastructure projects, flood mitigation measures, or road widening schemes.

Why Are Road Encroachments Taken Seriously?

Road margins and footpaths are public assets intended for transportation and pedestrian movement. Even small encroachments can create long-term urban planning issues.

A ramp constructed beyond a property’s boundary, a staircase projecting into a road margin, or a compound wall occupying a portion of public land may appear insignificant to an individual owner. However, when such encroachments become widespread, they reduce road width, obstruct pedestrians, affect drainage systems, and complicate future infrastructure projects.

Courts have repeatedly held that public land cannot be appropriated for private use merely because the encroachment has existed for several years.

Important Cases That Highlight the Issue

A recent Madras High Court case involving alleged encroachments on a public road examined complaints regarding structures extending into road-margin areas. The Court emphasized the role of local authorities in identifying and addressing encroachments affecting public roads.

In another 2026 case, the Madras High Court observed that even religious structures cannot claim immunity if they occupy public streets. The Court reiterated that public roads belong to the public and encroachments may be removed following due process.

The Court has also dealt with several cases involving waterbody encroachments. In one such matter concerning encroachments around a pond, authorities were directed to conduct surveys, identify violations, issue notices, and proceed with removal in accordance with law. The case underscored that while due process must be followed, unauthorized occupation of public resources cannot be allowed to continue indefinitely.

Tamil Nadu planning authorities have similarly initiated action against unauthorized constructions under the Tamil Nadu Town and Country Planning Act. In several cases, notices have been issued for deviations from approved plans, unauthorized floors, and constructions undertaken without planning permission.

These proceedings can ultimately lead to locking, sealing, or demolition orders if violations remain unaddressed.

Chennai Sees Renewed Focus on Encroachments

Chennai has witnessed several enforcement actions against unauthorized constructions in recent years.

In the Janapriya Builders case in T. Nagar, the Madras High Court allowed CMDA to proceed against the unauthorized portions of a commercial building after they were locked and sealed.

Similarly, CMDA’s enforcement records show notices issued against residential and commercial properties in areas such as Alwarpet and T. Nagar for deviations from approved plans. These cases highlight that additional floors, unauthorized extensions, setback violations, and deviations from sanctioned drawings can ultimately lead to locking, sealing, and even demolition proceedings if not rectified

Can Authorities Demolish a Structure Immediately?

In most situations, the answer is no.

Authorities are generally expected to follow a legal process before taking demolition action.

This typically includes

• identifying the violation,
• issuing a notice,
• providing the property owner an opportunity to explain or rectify the issue, and
• passing a final order.

Courts have consistently emphasized the importance of following the principles of natural justice before taking coercive action.

However, once the legal process has been completed and the violation is established, authorities have the power to remove unauthorized structures, particularly those affecting public land or violating planning regulations.

What Property Owners Should Keep in Mind

Before undertaking any modification, homeowners should verify whether the proposed work complies with approved plans and local development regulations. Even seemingly harmless additions such as balcony enclosures, front ramps, terrace rooms, staircase extensions, compound wall projections, or car parking covers can attract scrutiny if they violate sanctioned drawings or encroach upon public space.

A demolition notice is rarely the result of a single day’s action. More often, it is the culmination of planning violations, unauthorized construction, or encroachments that have remained unresolved.

To Sum Up:

By ensuring that construction is carried out in accordance with approved plans and applicable regulations throughout the project lifecycle can help property owners avoid costly disputes, enforcement proceedings, and potential demolition orders in the future.

The Tamil Nadu government has instructed Corporation and Municipality Commissioners to reduce delays in planning permission and building approval processing. The direction was issued by Director of Municipal Administration P Madhusudhan Reddy

This move is important for landowners, builders, developers, and property buyers because approval delays often affect construction timelines, project launches, loans, and sale agreements.

New Timelines for Approval

As per the latest direction:

➡️Site inspections must be completed within 5 working days after receiving the online application.

➡️The inspection report should be uploaded within 2 days after inspection.

➡️Planning permission should be issued within 24 days.

➡️Building permits should be issued within 7 days from the date of application submission.

This gives applicants a clearer idea of how long the approval process should take.

Less Manual Follow-Up, More Online Processing

The government has also made it clear that applicants, architects, engineers, and third parties should not be forced to appear in person unnecessarily.

All payments must be made through the online payment module. Officials have also been warned that manual interference, delay, or lack of transparency in online approvals may lead to action.

This can help reduce confusion and repeated visits to local offices.

When Fresh Field Inspection May Not Be Needed

One important clarification is that if ownership documents have already been verified by CMDA or DTCP, a fresh field inspection may not be necessary.

However, this does not mean applicants can submit incomplete or false details. The order clearly states that if information submitted to CMDA or DTCP is later found to be false, authorities can stop construction at any stage.

So, faster approval does not remove the need for proper document verification. It only makes the process quicker when the submitted records are correct.

If the application contains false information or if the land has legal or planning issues, construction can still be stopped later.

Why Land Verification Matters Before Applying

A clean application has a better chance of moving faster. Problems usually arise when there is a mismatch in survey number, unclear ownership, missing approval, wrong land use, insufficient road access, or restrictions such as road widening, reserved land, or flood risk.

Property owners should not assume that the new timeline guarantees approval. The land and documents must still be legally clear.

So, before spending money on drawings, fees, and construction planning, the property should be checked properly.

Verified.RealEstate helps buyers, landowners, and developers check whether a property is suitable for development before applying for approvals.

Through tools and services such as LandLens, checks can include title review, encumbrance, Patta, survey number, zoning, road width, approval status, flood indicators, and surrounding land-use risks.

This helps applicants identify issues early instead of discovering them after submitting the application or starting construction.

Conclusion

Tamil Nadu’s fixed timelines for planning permission and building permits are a welcome step for faster and more transparent approvals.

But speed is useful only when the land records are clear. Property owners and builders should verify the land, approval status, and development rules before applying, so that the process does not get delayed or challenged later.

For years, many applicants, builders, and industry insiders have spoken about an unofficial payment allegedly collected during building approval processes in Tamil Nadu. This payment was commonly referred to as PF, Party Fund, or Katchi Nidhi.

According to reports, the alleged amount was said to be collected on a per-square-foot basis from applicants seeking building approvals. The claim is that during the AIADMK period, this amount was around ₹25 per sq. ft., and during the DMK period, it allegedly increased to ₹27 per sq. ft.

The allegation is serious: applicants were reportedly made to believe that approvals would move forward only after this unofficial amount was paid.

Why This Became a Major Concern

Building approval should be based on documents, planning rules, land use, setbacks, road width, FSI, ownership clarity, and compliance with development regulations.

But when unofficial payments enter the system, the process becomes unfair.

A person with proper documents may still face delay.
A person following the rules may still be pressured.
A genuine applicant may lose time, money, and confidence in the approval system.

This is why the alleged PF/Katchi Nidhi practice became a major concern for property owners, builders, developers, and ordinary citizens.

CMDA’s Move Against Red Tapism

The Chennai Metropolitan Development Authority has now issued directions to officials to avoid delays and process applications within prescribed timelines. The circular specifically warns against red tapism, malpractice, favouritism, and misuse of official position.

The direction covers applications related to planning permission, completion certificates, layouts, reclassification proposals, and other approvals. Officials have also been instructed to monitor pending files daily and record valid reasons if any application cannot be processed within time.

This is important because it shifts the focus back to one basic principle: approval must depend on rules and documents, not unofficial payments.

Not Just CMDA: The Issue Affects Town Planning Too

This discussion is not limited only to CMDA. Similar concerns have also been raised in relation to town planning departments and local approval systems across Tamil Nadu.

For many applicants, the approval journey passes through different levels of local bodies, planning offices, and technical scrutiny. If unofficial payments are eliminated across all these levels, it can make the system cleaner and faster.

The real impact will be seen only when the same discipline is followed not just in Chennai, but across planning authorities and local bodies in Tamil Nadu.

What This Means for Applicants

If this change is implemented properly, applicants may no longer need to depend on unofficial channels to move their files.

Building approval should be granted when:

the ownership documents are clear,
the plan follows planning rules,
the required government fees are paid,
the site satisfies road width, setback, FSI, and zoning norms,
and there are no legal or technical defects.

That is how the system should work.

What Builders and Property Owners Should Do Now

Even if red tapism is reduced, applicants must not assume that every file will be approved automatically. Documentation still matters.

Before applying for approval, property owners and builders should check title documents, patta, EC, survey details, land classification, road access, zoning, FSI limits, and approval eligibility.

A clean system helps only when the applicant’s file is also clean.

Verified.RealEstate can assist property owners, buyers, builders, and developers with document verification, land due diligence, approval-readiness checks, and risk identification before major property decisions are made.

Final Takeaway

The alleged PF/Katchi Nidhi system damaged trust in building approvals because it created fear that files would move only through unofficial payments.

If the new direction is implemented strictly, it can be a major step toward cleaner, faster, and more transparent building approvals in Tamil Nadu.

The rule should be simple: if the documents are proper and the plan follows the law, approval should not be delayed.

A 2,400 sq.ft. plot with six to eight homes is no longer unusual in Tamil Nadu’s growing apartment market. At present, when apartment buildings are constructed, the permissible floor area is generally linked to the size of the selected plot. The buildings may be allowed floor area up to two times the plot area, and in some places, based on road width and plot size, the permitted Floor Space Index may go up to 3.25 times.

As builders try to create more housing within limited land, the big question is: should FSI be increased, or should some common facilities be kept outside FSI calculation?

Authorities now appear to be considering the second route — and that could directly affect future apartment layouts, amenities and saleable space.

What Is Being Considered?

As the key proposal is not a direct increase in FSI, officials are reportedly considering whether certain parts of apartment buildings can be excluded from FSI calculation. This means some common-use facilities may not be counted as part of the permitted floor area.

The report specifically mentions possible exemptions for:

Yoga centres, gymnasiums, recreation rooms

These are common amenity spaces in apartment complexes. If these areas are excluded from FSI calculation, builders may be able to provide such facilities without reducing the floor area available for residential flats.

Why Is This Being Discussed?

The report says there were recommendations to increase FSI so that more homes could be built on smaller plots. However, officials reportedly opposed increasing the FSI ratio directly.

Because of this, the alternative being considered is to give concessions by excluding selected common areas from FSI calculation. In simple terms, instead of increasing the main FSI limit, the government may allow some extra facility areas outside the FSI count.

Existing FSI Exemptions

As per the current rule, some areas are already exempted from FSI calculation in apartment buildings. These include:

Security room, terrace lift machine room, and similar service-related spaces

Now, there is a demand to extend this exemption to more amenity spaces such as gyms, recreation rooms and yoga training rooms.

Maharashtra Model Being Studied

Maharashtra has issued/introduced the notification for FSI exemption for certain recreational facilities such as yoga centres, gyms and recreation rooms. Tamil Nadu officials are only studying or considering whether a similar concession can be brought here.

This is the important point: Tamil Nadu has not yet implemented this change based on the article. Officials are only exploring the method and waiting for government approval.

What It Will Mean If Brought Into Practice

If this proposal becomes an official rule, it could have a direct impact on apartment projects in Tamil Nadu.

For builders, it may allow more flexibility in planning apartment complexes. They may be able to include amenities like gyms, yoga rooms and recreation rooms without losing FSI area that could otherwise be used for flats.

For homebuyers, it could mean better common facilities within apartment buildings. Smaller apartment projects may also start offering amenities that were earlier seen mostly in larger gated communities.

For the real estate market, it may increase the effective usable area of apartment projects. Even if the official FSI number is not increased, excluding certain spaces from FSI calculation can indirectly increase the total usable built-up space in a project.

However, this also needs proper regulation. If such exemptions are misused, builders may show areas as amenity spaces on paper but use them differently later. Buyers should therefore check the approved building plan carefully before purchasing.

Why Buyers Should Pay Attention

FSI concessions can affect the final layout, common amenities, undivided share, parking arrangement and saleable area of an apartment project. A buyer should not simply rely on brochure claims.

Before buying an apartment, buyers should check whether:

• The building plan is properly approved
• The claimed amenities are shown in the approved plan
• Exempted areas are legally permitted
• Parking and common areas are clearly marked
• The final construction matches the sanctioned plan.

This is where a proper approval and document verification process becomes important. Platforms like Verified.RealEstate can help buyers review key property documents, approval details, guideline value, RERA information and other risk factors before making a decision.

Current Status

The Officials are studying ways to provide FSI exemption for gymnasiums, recreation rooms and yoga training centres in apartment buildings. They are also taking steps to increase the exemption limit for such areas in relation to the total building area. Orders may be issued only after government approval.

So, for now, this should be treated as a ‘proposal under consideration‘, not as a final rule.

1. What is a Continuous Building Area (CBA)?

A Continuous Building Area (CBA) refers to urban zones or localities that feature densely clustered buildings with minimal open space between individual structures. In these areas, buildings typically share common walls or have minimal setbacks, creating a continuous stretch of built-up space.

CBA designation is essential for determining building regulations such as setback distances, permissible building heights, and Floor Space Index (FSI).

2. Importance of Continuous Building Areas in Urban Planning

Understanding CBA is crucial due to several factors:

• Urban Density Management:
  CBAs facilitate efficient utilization of limited urban land by optimizing available space.
• Infrastructure Planning:
  Urban planners use CBA designations to regulate infrastructure and service delivery, ensuring adequate utilities and accessibility.
• Legal and Regulatory Compliance:
  Properties within a CBA have specific building rules and regulations, including reduced setbacks and limited building heights.

3. Regulations for Continuous Building Areas in Tamil Nadu

In Tamil Nadu, including Chennai, building regulations for CBAs include:

• Minimal Setbacks:
  Properties within CBAs typically require minimal or no setbacks, allowing construction up to boundary lines, subject to specific local authority approval.
• Building Height Limits:
  Buildings within CBA are often restricted to Ground plus one floor (G+1), maintaining overall structural safety and fire regulations.
• Permissible Construction:
  CBA areas generally permit residential and small commercial establishments but may restrict high-rise or expansive constructions.
• Road Width Consideration:
  In Chennai and other Tamil Nadu cities, CBA rules often stipulate specific minimum road widths to facilitate access and emergency services.

4. Importance of Verifying Your Property’s CBA Status

Accurate verification of your property’s CBA status ensures:

• Compliance with Building Regulations:
  Avoid legal disputes, penalties, and project delays by adhering strictly to CBA construction rules.
• Smooth Approval Processes:
  Knowing your CBA status simplifies obtaining necessary construction clearances, such as Building Plan Approval and other essential permits.

4. How to Verify If Your Property is in a Continuous Building Area (CBA)

You can verify your property’s CBA status through multiple reliable methods:

• Government Notifications:
  Consult local urban planning authorities, such as the Chennai Metropolitan Development Authority (CMDA) or your local municipality office, for official notifications.
• Official Documentation:
  Check property documents like your building plan approval, planning permissions, and municipal layout maps.
• Online Verification Tools:
  Verified.RealEstate offers convenient and accurate tools like the CBA Check Tool, enabling you to quickly determine if your property is in a Continuous Building Area and understand relevant rules.

5. Implications of Owning Property in a CBA Zone

If your property is within a designated Continuous Building Area, you must adhere to specific guidelines:

• Limited Construction Scope:
  Potential restrictions on vertical expansion or extensive renovations to maintain structural integrity and public safety.
• Reduced Setbacks:
  May allow constructions up to boundary walls, reducing open space requirements compared to non-CBA areas.
• Enhanced Urban Density:
  Encourages compact urban development, often making property in these zones attractive for commercial and rental ventures due to increased footfall and accessibility.

5. Practical Tips for CBA Property Owners

• Detailed Legal Review:
  Always consult professionals through Legal Opinion Services to clarify legal obligations and permissible construction activities within CBA-designated areas.
• Proper Documentation:
  Ensure all property documents, including building approvals, encumbrance certificates, and property taxes, clearly reflect the CBA status.
• Professional Assistance:
  Engaging professional services ensures adherence to regulations, smooth approval processes, and helps avoid potential legal and regulatory complications.

6. Recommended Tools and Services

To manage properties within Continuous Building Areas effectively, utilize specialized services:

• CBA Check Tool:
  Instantly confirm your property’s designation using the CBA Check Tool.
• Building Plan Approval Services:
  Verified.RealEstate’s Building Plan Approval helps streamline compliance with CBA regulations.
• Due Diligence:
  Comprehensive Due Diligence to verify legal documentation and compliance with building regulations.

Conclusion

Understanding the concept of Continuous Building Areas (CBAs), their implications, and the regulatory frameworks associated is essential for homeowners, investors, and developers in Chennai and across Tamil Nadu. By leveraging specialized verification tools, compliance services, and expert advice, property owners can navigate these zones confidently, ensuring their investments remain secure and legally sound.