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 change was published as Notification No. VI(1)/442/2026 in the Tamil Nadu Government Gazette No. 34 dated August 26, 2026. The CMDA variation was signed on August 24, 2026. Gazette No. 34 contains five separate land-use notifications. However, Notification No. VI(1)/442/2026 applies only to the specified survey lands in Ottiyambakkam.

Exact survey numbers converted to residential use

The notification applies only to these survey subdivisions:

• 286/1B1
• 286/1B2B
• 290/1
• 290/2
• 290/3A
• 290/3B
• 292/2B
• 295/2B1

These lands fall within Ottiyambakkam Village and the St. Thomas Mount Panchayat Union limits.

Important condition attached to the rezoning

CMDA has stated that public access to the surrounding vacant lands must be ensured when development is undertaken.

This means any future layout or building proposal must be planned without blocking access to nearby vacant properties. The condition may influence road alignment, entry points and the overall development plan.

What does the conversion mean?

The listed lands can now be considered for residential development under the applicable planning rules. However, residential zoning alone does not automatically provide permission to construct houses or form a layout.

The owner or developer must still obtain the required planning permission, building approval and other clearances. Factors such as road width, access, FSI, setbacks, infrastructure and site conditions will continue to apply.

Does this cover all of Ottiyambakkam?

No. The Gazette notification applies only to the listed survey numbers and subdivisions. It must not be treated as a blanket conversion of every agricultural property in Ottiyambakkam.

Buyers should match the complete survey number and subdivision shown in the title deed, patta, FMB sketch and CMDA land-use records before relying on this notification.

Why is this important for property buyers?

Ottiyambakkam is a growing residential belt with access to Medavakkam, Sithalapakkam, Navalur and the OMR corridor. Residential zoning may improve the development potential of the affected lands, but it does not guarantee an increase in market value or approval for a particular project.

A proper survey-level verification is essential because even land located next to a converted property may remain under a different land-use classification.

Verified.RealEstate can help buyers and owners verify the exact location through its Land Use Checker, survey and FMB mapping, FSI Calculator and Guideline Value Checker. These checks help confirm whether the property being examined actually falls within the newly reclassified survey fields.

Disclaimer: This article is based on Tamil Nadu Government Gazette Notification No. VI(1)/442/2026. Zoning conversion does not by itself confirm title, development approval or building permission. Buyers should verify the property’s exact survey subdivision and obtain professional legal and planning advice before proceeding.

Ministerial Approval Requirement Removed

Previously, proposals for high-rise buildings exceeding 18.3 metres in height had to pass through two main levels:

1. The proposal was examined by a committee chaired by the CMDA Member Secretary.
2. Even after committee clearance, the file had to be forwarded to the Tamil Nadu government for final approval by the minister, who served as CMDA chairman.

Under the new system, CMDA can directly approve the proposals, so the files no longer need ministerial clearance. This is expected to reduce such delays.

This change was introduced through a Housing and Urban Development Department government order G.O. (Ms) No.126 dated June 15, 2026. The amendment followed CMDA’s request for greater authority under the Tamil Nadu Combined Development and Building Rules, 2019.

This revised system removes the need for a separate ministerial-level approval after CMDA scrutiny. 

Approval Numbers Show a Sharp Rise

CMDA approved 66 high-rise proposals in 2021, followed by 58 in 2022 and 30 in 2023. The number dropped to 17 in 2024 and just nine in 2025.

However, following the recent rule change, nearly 17 proposals were cleared within about a month. Several applications had reportedly remained pending for years under the earlier approval system.

CMDA Member Secretary Rahul Nadh said removing the government-level approval stage could save around two months in the processing of high-rise applications.

Developers Expect Faster Project Clearances

The real estate industry has welcomed the reform, as it removes one administrative layer and may help developers begin projects sooner. Faster planning approvals could also reduce financing costs and prevent prolonged project delays.

However, the change does not exempt developers from obtaining other mandatory permissions.

Developers must still obtain all applicable statutory permissions, which may include:

• Environmental clearance
• Airport Authority or aviation-related clearance
• Fire and rescue services clearance
• Traffic and infrastructure-related approvals
• Other permissions depending on the project’s height, size, location and use

Verified Real Estate assists developers in coordinating and obtaining these statutory approvals, helping them in ensuring a smoother and hassle-free project approval process.

What the Reform Means for Chennai Real Estate

The rapid clearance of 17 high-rise proposals suggests that the new system could improve the ease of doing business in Chennai’s construction sector. It may also encourage developers to take up larger residential, commercial and mixed-use projects across the metropolitan region.

The long-term impact will depend on whether CMDA can maintain faster approval timelines while ensuring that projects continue to comply with planning, safety, infrastructure and environmental regulations.

The concern has been raised by developers and CREDAI after uncertainty emerged over the interpretation of Tamil Nadu’s Transit-Oriented Development policy.

Industry representatives say the lack of a clear and uniform rule is affecting planning applications for large development sites located along Metro corridors.

What Does the Existing Rule Provide?

In August 2022, the Tamil Nadu government amended the Tamil Nadu Combined Development and Building Rules, 2019, to encourage higher-density development near public transport corridors.

Under Section 30(5) in Tamil Nadu Combined Development and Building Rules, 2019,

Transit Oriented Development areas. – (i) In order to encourage Transit sensitive activities and to allow identifications in any mass rapid transit system in the state, the Govt. may prescribe such regulations, including premium FSI at concession rates as may be necessary from time to time.

(ii)In case of Metro Rail Corridors, Existing and Proposed properties located within a distance of 500m measured from the centre line of the corridor, Premium FSI shall be charged at 50 % of the normal Premium FSI rate.

Premium FSI allows developers to construct additional floor area beyond the normally permitted FSI by paying a prescribed charge to the planning authority.

The concession of 50% on the normal premium FSI rate, was introduced to encourage Transit-Oriented Development, improve access to mass transport and reduce dependence on private vehicles.

How Is the 500-Metre Distance Calculated?

The notification states that the distance must be measured from the centre line of the Metro Rail corridor, rather than only from a Metro station.

A property must therefore be assessed based on its distance from the alignment of the eligible Metro corridor.

Where Does the Confusion Arise?

The main issue concerns large plots where only a portion of the property falls within the prescribed 500-metre distance.

For example, one section of a project site may be located within 500 metres of the Metro corridor, while the remaining land, entrance or road frontage may fall outside the boundary.

The existing notification does not clearly explain whether:

• The Premium FSI concession should apply to the entire project site;
• It should apply only to the portion falling within 500 metres; or
• The project should be denied the benefit when its entrance or road access is outside the eligible zone.

This lack of clarity has reportedly resulted in different interpretations while processing planning-permission applications.

Developers claim that some applications receive the concession only for the portion of land within 500 metres, while others may be denied the benefit because the access or frontage is outside the zone. This uncertainty is reportedly causing repeated queries and planning-permission delays

What Are CREDAI and Developers Asking CMDA?

CREDAI and Chennai developers have asked CMDA to issue a formal clarification stating how partially covered properties should be treated.

CREDAI Chennai reportedly wants CMDA to confirm that:

• Different CMDA officials should not interpret the same rule differently.
• If the 500-metre boundary touches any part of the project site, the entire project should qualify for the Premium FSI concession.
• The concession should not be denied merely because the project’s road frontage, entrance or access road lies outside the 500-metre zone.
• The clarification should apply uniformly to pending, revised and future planning applications.

Developers have also sought confirmation that eligibility should not be rejected merely because the site entrance, frontage or access road falls outside the prescribed distance.

A uniform clarification, they argue, would prevent inconsistent decisions, reduce repeated queries and avoid delays in obtaining planning permission.

Why the Clarification Matters

Premium FSI charges can form a significant part of a project’s development cost. Whether the 50% concession applies to the whole property or only a part of it can therefore materially affect the financial feasibility and design of a project.

A clear rule is also important because Chennai Metro Phase II and other proposed corridors pass through several areas with large residential, commercial and mixed-use development sites.

Developers may hesitate to plan higher-density projects near these corridors if eligibility for the concession remains uncertain.

CMDA Clarification Awaited

The 2022 rule clearly grants reduced Premium FSI charges to eligible properties within 500 metres of Metro corridors. However, it does not expressly address properties that cross the 500-metre boundary.

Until CMDA issues a written clarification, such projects may continue to be assessed on a case-by-case basis.

A clear and consistent interpretation would help developers understand their eligibility while ensuring that the original objective of promoting planned, transit-oriented growth around Chennai’s Metro network is properly implemented.

Note to buyers, investors, and developers: To assess the available FSI for a land parcel, you can use the FSI Calculator, one of the many such valuable services offered by Verified Real Estate . This tool evaluates plot details and estimates the permissible construction potential, enabling more informed planning prior to development.

These upcoming facilities will be located in Purasaiwalkam, Periyar Nagar, Otteri, Pulianthope, Thiru-Vi-Ka Nagar, and Kolathur. Designed to support both work and study needs, the centres aim to provide low-cost infrastructure for freelancers, entrepreneurs, remote workers, and students preparing for competitive exams.

This expansion builds on the positive response received by existing centres and reflects an effort to bring structured work and learning environments closer to residential neighbourhoods.

Affordable Work and Study Spaces

Muthalvar Padaippagam is a public initiative that blends co-working spaces with learning centres, making professional infrastructure accessible at minimal cost.

Compared to private co-working offices, these centres are significantly more affordable. The expected pricing includes:

• ₹50 for a half-day co-working session
• ₹5 for a learning session lasting approximately three-and-a-half hours

The facilities are intended for a wide range of users, including:

• Freelancers and remote professionals
• Start-up founders and small business owners
• Independent workers
• College students and jobseekers
• Aspirants preparing for TNPSC, UPSC, NEET, JEE, CLAT, and similar exams

Users can access services such as online booking, booking history, and grievance redressal through the Greater Chennai Corporation’s official platform.

Key Features of the New Centres

While each location may differ slightly in scale, the centres are expected to offer essential amenities such as:

• Air-conditioned work and study areas
• Computer workstations
• High-speed internet access
• Charging points and power supply
• Reading and study zones
• Meeting or consultation rooms
• Reception and security services
• Drinking water and restroom facilities

These features are designed to support both professional work and academic preparation within a single space.

Strong Demand from Existing Centres

The decision to expand follows the success of earlier centres, particularly the Kolathur facility launched in November 2024.

Reports indicate that the Kolathur centre served 4,489 entrepreneurs, with a majority of users being women. Its conference rooms were also actively used, hosting around 2,025 consultations, highlighting its role beyond just desk-based work.

Encouraged by this response, authorities introduced additional centres, including one at Thangasalai, while continuing to develop more locations across the city.

Periyar Nagar: A Combined Library and Workspace Model

The Periyar Nagar centre represents an enhanced version of the initiative by integrating a public library with co-working and learning facilities.

Developed by CMDA at a cost of approximately ₹5.24 crore, the upgraded two-storey complex includes:

• A 75-seat library hall
• An 85-seat learning area
• A 60-seat training hall
• E-learning facilities
• Free internet access
• A cafeteria
• Purified drinking water
• Study materials for competitive exams

The library houses around 70,000 books, including resources for exams such as NEET, JEE, and CLAT.

This model demonstrates how traditional libraries can be transformed into multifunctional spaces that support education, employment, and entrepreneurship.

Periyar Nagar is also listed among the six upcoming centres, though it remains unclear whether this refers to an expansion, a new section, or a revised operational setup.

Operational Structure

The Greater Chennai Corporation is expected to oversee administration and technical management, while outsourcing certain support services.

Private contractors may handle:

• Reception duties
• Security services
• Housekeeping

Each centre is likely to employ two receptionists, two security personnel, and two cleaning staff.

Meanwhile, GCC will retain control over:

• Administration and supervision
• Booking systems and user data
• IT and electrical infrastructure
• Technical maintenance

This hybrid model allows the government to maintain oversight while delegating routine operations.

Internet services have reportedly been arranged separately, and newly installed equipment will remain under warranty during the initial phase.

Estimated Operating Costs

Monthly expenses for a standard centre are expected to be around ₹1.5 lakh, while the larger Periyar Nagar facility may require approximately ₹3 lakh per month due to its expanded infrastructure.

Support service contracts are likely to run for one year initially, after which GCC may introduce a comprehensive maintenance agreement covering staffing, upkeep, and service quality.

Ensuring consistent operations will be crucial as the network grows, particularly to avoid underutilisation.

Importance for Chennai’s Workforce and Students

These centres address a key gap between working from home and renting expensive office space.

Freelancers and remote workers gain access to reliable infrastructure without high costs. Start-ups can operate efficiently using shared facilities, while students benefit from quiet, well-equipped study environments at minimal expense.

Additionally, the initiative revitalises public buildings by converting them into active community hubs.

Expanding Access to Public Workspaces

The addition of centres in Purasaiwalkam, Periyar Nagar, Otteri, Pulianthope, Thiru-Vi-Ka Nagar, and Kolathur marks a significant step in strengthening Chennai’s public co-working ecosystem.

The success of earlier centres indicates strong demand, but the long-term impact will depend on effective management, reliable services, and user-friendly access systems.

Once operational, these six centres are expected to provide affordable and organised work and study spaces for residents across North and Central Chennai, offering a practical alternative to costly private options.

Find the Right Office Space with Verified.RealEstate

Businesses looking for professional workspaces in Chennai can use Verified.RealEstate’s Office Spaces service to find coworking desks, private cabins, managed offices and virtual office solutions based on their team size, location and operational needs. The service supports businesses from requirement assessment through workspace setup, including furnishing, customisation and compliance coordination, while offering flexible terms and transparent pricing. It is suitable for freelancers, start-ups, growing teams and companies seeking a ready-to-use office without handling the entire setup independently.

What is the Third Master Plan About?

The Third Master Plan (TMP) is a data-driven development framework designed to navigate the challenges of Chennai’s rapidly expanding urban footprint. Moving forward from the previous Second Master Plan, the TMP focuses on upgrading Chennai into a world-class, highly efficient metropolis. Its primary goal is to seamlessly balance the region’s long-term economic competitiveness with high environmental sustainability, climate resilience, and everyday liveability.

Core Concepts of the Third Master Plan

During these early interactive sessions, stakeholders and urban local bodies emphasized several foundational planning concepts that will define the upcoming master plan:

1. Infrastructure, Mobility, and Transit-Oriented Development (TOD)

A central pillar of the plan is the integration of land-use planning with the city’s transport networks. The CMDA aims to build a highly efficient multimodal transport network. By prioritizing Transit-Oriented Development, the plan will cluster high-density residential and commercial spaces around major metro, rail, and bus corridors to maximize public utility use and systematically curb traffic congestion.

2. Growth Management and Urban Density

To address rapid population expansion, the plan focuses heavily on smart density management. Instead of allowing unchecked horizontal sprawl into suburban areas, the framework emphasizes optimizing land utilization within the existing planning limits to support balanced, organized regional growth.

3. Climate Resilience and Environmental Sustainability

Adapting to increasing climate risks is a major priority for the new framework. The plan outlines strategies to strengthen disaster preparedness across the Chennai Metropolitan Area. This includes mapping out strict protections for the city’s vital ecological assets, green spaces, wetlands, and water bodies to protect them from unauthorized development.

4. Housing and Everyday Liveability

The TMP aims to elevate the baseline quality of life for Chennai’s residents by expanding accessible public green spaces, promoting mixed land-use zones (placing workplaces, commercial centers, and homes closer together), and significantly expanding access to affordable housing.

The Consultation Process and Implementation Timeline

The CMDA is actively gathering a highly diverse range of data and perspectives by involving a broad spectrum of participants in these sessions, including:

• Government & Civil Authorities: Urban local bodies, infrastructure providers, and regional transport authorities.
• Industry & Technical Experts: Real estate professionals, academic institutions, and professional urban planning organizations.
• Community Representatives: Civil society organizations and non-governmental bodies.

International Experts Roped In to Review Draft Plan

To ensure the framework aligns with global standards and avoids execution bottlenecks, the Tamil Nadu Housing and Urban Development Department has decided to rope in international town planning experts to thoroughly review the draft of the Third Master Plan. The CMDA has been working on this plan for the last five years, investing nearly ₹2.5 crore, with a target to release the draft before the Second Master Plan lapses in September. Because internal sources have flagged certain practical difficulties and shortcomings in the current draft, these global experts will help tweak and refine the framework. The goal is to deliver a highly accurate and legally sound final blueprint that will successfully dictate Chennai’s metropolitan growth through its horizon period of 2047.

When Will It Be Introduced?

While an exact calendar launch date for the final document is not specified, the process is actively moving through its mandatory drafting stages. CMDA officials noted that this current exercise marks the beginning phase; the authority is scheduled to conduct additional rounds of consultations to evaluate all feedback before finalizing and officially releasing the draft plan to the public.

The consultations are intentionally structured to be inclusive, bringing together a wide array of perspectives from government agencies, transport authorities, industry representatives, infrastructure providers, academic institutions, planning professionals, and civil society organizations.

What Has Been Done So Far?

TThe preparation of the Third Master Plan commenced in December 2020. Since then, CMDA has:

• Conducted public consultations across Chennai and suburban areas.
• Held stakeholder meetings covering housing, transport, infrastructure, environment, economy, and technology.
• Undertaken more than 15 studies on land use, blue-green infrastructure, income patterns, gender-inclusive planning, temporal growth, and climate resilience.
• Prepared a vision document that forms the foundation of the master plan.

The plan also proposes major urban reforms such as transit-oriented development, vertical growth through higher FSI, mixed-use development, climate-resilient infrastructure, and the creation of new economic hubs.

Why Is an International Review Being Considered?

According to reports, the government intends to have the draft reviewed because certain aspects of the plan require further refinement to ensure practical implementation and alignment with global urban planning standards. International experts are expected to examine the plan’s proposals, identify any shortcomings, and provide recommendations that could help create a more robust and future-ready framework for Chennai’s growth.

If significant modifications are suggested, the government may revise portions of the draft before placing it in the public domain.

Chennai Metropolitan Area Expansion

One of the most significant developments during the preparation of the Third Master Plan was the expansion of the Chennai Metropolitan Area (CMA) in 2022. The planning area increased from approximately 1,189 sq km to about 5,904 sq km, bringing several additional urban and peri-urban regions under the metropolitan planning framework.

The integration of these newly added areas into the future planning framework is still under consideration, with separate regional plans expected to address the development needs of the expanded regions.

Why the Third Master Plan Matters for Real Estate

The Third Master Plan could have far-reaching implications for the real estate sector, particularly in:

• Metro corridors
• Transit-oriented development zones
• Mixed-use development areas
• Industrial clusters
• Commercial hubs and growth corridors

Potential impacts could include:

• Increase in land values.
• Higher development potential.
• Greater redevelopment opportunities.
• New infrastructure investments and economic activity.

However, since the draft has not yet been officially notified, landowners, developers, and investors should closely monitor these aspects and exercise caution before making any investment or project planning decisions until the final plan is released.

Grid of Roads Proposal: A Key Aspect to Watch

Another important aspect that stakeholders may need to closely monitor is the proposed Grid of Roads (GoR) network, which has already generated concerns within the real estate sector.

The proposal seeks to establish a planned road hierarchy and improve connectivity across the Chennai Metropolitan Area. However, developers and landowners have raised concerns that some proposed road alignments pass through approved layouts and private developments, potentially affecting project planning, land utilisation, and future approvals.

As the Grid of Roads proposal is expected to form part of the future planning framework, stakeholders may need to carefully examine whether their properties are impacted by any proposed road reservations before initiating development projects or making investment decisions.

How Could the Third Master Plan Impact Stakeholders?

Landowners

Properties located within future growth corridors, transit-oriented zones, and areas identified for higher development potential could witness appreciation in land values and increased redevelopment opportunities.

Developers and Builders

A well-defined master plan can provide planning certainty, unlock new development corridors, and create opportunities for high-density, mixed-use, and transit-oriented projects.

Commercial Property Owners

Commercial assets situated near transport nodes, economic hubs, and major infrastructure corridors could benefit from increased demand, improved connectivity, and higher rental and capital values.

What Could the Final Third Master Plan Include?

Based on the various studies undertaken by CMDA and the themes discussed in public consultations and previous reports, the Third Master Plan is expected to address areas such as land use, housing, transportation, economic development, environmental management, climate resilience, infrastructure planning, and implementation mechanisms. However, the final structure and contents of the plan will become clear only after the draft is officially released.

What Happens Next?

The next stages in the process are expected to include:

1. Review of the draft by international experts.
2. Release of the draft Third Master Plan.
3. Public comments and objections.
4. Any major recommendations could lead to revisions before the draft is released. 
5. Government approval.
6. Final notification before the existing Second Master Plan expires.

As Chennai prepares for its next phase of urban growth, the Third Master Plan could become one of the most influential policy documents for the city’s real estate, infrastructure, and economic development over the coming decades.

Historically, the CMDA’s greatest successes weren’t individual buildings, but the blueprints of entire self-sustaining neighborhoods—think of the master-planned layouts of Anna Nagar, Mogappair, or the Koyambedu complex.

But a massive financial reality check has forced a dramatic course correction.

Facing steep deficits, the CMDA is officially pulling the plug on direct construction. Instead, it is pivoting back to its foundational legal mandate: strategic urban planning, zoning, and development approvals.

Here is an inside look at why this financial reset happened, how administrative restructuring followed, and how it will reshape the future of Chennai’s real estate landscape.

The ₹3,000 Crore Reality Check

The CMDA’s financial strain began with an aggressive push into physical infrastructure development. While well-intentioned, the execution drained the authority’s reserves.

• The Spending: Over a two-year period, the CMDA committed nearly ₹3,000 crore toward heavy construction and infrastructure works.
• The Deficit: This massive capital outlay completely eroded the authority’s decades-old accumulated corpus fund, which had been steadily built up through interest earnings since 1972. This has pushed its balance sheet into a negative position of roughly ₹1,500 crore.
• The Missing Expertise: Beyond the numbers, internal reviews highlighted a structural flaw: the CMDA was simply not built to be a builder. Lacking the massive engineering pipelines and dedicated maintenance wings of bodies like the Greater Chennai Corporation (GCC) or the Highways Department, executing large-scale civil projects proved to be an uphill battle.

Realizing that building the city was draining the resources needed to plan the city, leadership decided it was time to step back.

From Terminals to Markets: The Projects That Fueled the Crisis

The ₹3,000 crore spending sprint saw the CMDA venture far beyond its traditional regulatory scope, taking on the direct construction of massive public infrastructure.

Key projects included:

Thirumazhisai Bus Terminus: A major satellite bus terminal designed to handle traffic on Chennai’s western corridors.

Mudichur Bus Terminus: Built specifically to house private omni-buses to further decongest central city traffic.

Ornamental Fish Market: A specialized commercial market hub set up to streamline local trade for breeders and vendors.

Mudhalvarin Padaipagams: Modern youth innovation hubs and creative co-working spaces.

Public Libraries: A network of modern public library buildings funded and constructed across various city limits.

Vada Chennai Valarchi Thittam: Structural upgrades, parks, community halls, and civic projects executed under the North Chennai Development Scheme.

Historically, the CMDA simply provided funding to other line departments based on specific project proposals, rather than venturing into full-fledged construction itself. This recent experiment left the authority bearing the massive upfront construction costs without any long-term operational revenue to show for it.

Back to Basics: What is CMDA’s Core Mandate?

Under the Tamil Nadu Town and Country Planning Act, 1971, the authority is meant to be the city’s architect and regulator, not its brick-and-mortar builder.

Its true core responsibilities include:

• Master Plan Formulation: Blueprinting Chennai’s decades-long expansion maps and enforcing macro-zoning rules to systematically organize residential, commercial, and industrial spaces.
• Planning Permissions: Scrutinizing and issuing legal clearances for building layouts, plot subdivisions, and high-rise developments to ensure safety and rule compliance.
• Land Pooling & Layouts: Partnering with peripheral landowners to pool tracts of land, design orderly neighborhoods with proper roads and parks, and return high-value, developed plots back to the owners.
• Enforcement Watchdog: Monitoring structural safety, issuing Completion Certificates (CC), and cracking down on unauthorized or heavily deviated constructions.

Pivot to Planning: The New Strategy and Restructuring

By retreating from active construction sites, the authority is redirecting its energy toward high-impact urban governance. This structural shift is also being mirrored at the state governance level.

In tandem with this financial reset, the government has dismantled the dedicated CMDA ministry originally created by the previous administration, reverting control of the department directly back under the direct oversight of the Housing Ministry, as was the practice in the past.

With administration realigned, the CMDA is focusing heavily on three areas:

1. Finalizing the Third Master Plan (TMP)

With Chennai expanding rapidly, the upcoming Third Master Plan is critical. By freeing up administrative bandwidth, the CMDA can focus entirely on blueprinting the city’s growth, sustainable zoning, and climate-resilient infrastructure for the next two decades.

2. Monetization Through Land Pooling

To recover from its ₹1,500 crore deficit, the CMDA is shifting from building structures to assembling land. This strategy generates healthy revenue through development charges and layout creation rather than high-risk construction.

3. Faster Planning Approvals

The ultimate win for Chennai’s real estate sector is speed. With the state government granting the CMDA direct powers to clear high-rise project proposals, a singular focus on approvals means significantly reduced red tape and faster clearance timelines for developers.

What This Reset Means for Chennai Real Estate

     [ Old Approach ]                   [ New Focus ]
  Heavy Infrastructure Build         Streamlined Approvals
  Corpus Fund Depletion              Land Pooling Revenue
  Delayed Project Timelines          Faster Vertical Growth

For homebuyers, investors, and developers in Chennai, this pivot is a positive sign.

When a planning authority tries to act as a contractor, bureaucracy slows down and project delivery stalls. By returning to its core identity under the Housing Ministry, the CMDA can better manage Chennai’s rapid vertical growth, enforce smarter zoning regulations, and clear administrative bottlenecks for both the private and public sectors.

Chennai is expanding at a record pace. With the CMDA back at the drawing board instead of the construction site, the city might finally get the structured, sustainable growth it needs.

Verified Services

For investors, developers, and property sellers, obtaining CMDA approval support is an important step for investing in, after building, or for selling a property. It is always safer to work through a trusted and secure platform like the Verified Real Estate team, which offers end-to-end assistance for property approvals and related compliance services.

Earlier, even after CMDA scrutiny and recommendation by the HRB panel, the proposal had to be forwarded to the Government for final approval. Now, CMDA can directly issue or refuse planning permission based on the scrutiny panel’s recommendation.

This change is especially important for developers, builders, architects and landowners planning high-rise residential, commercial or mixed-use projects in Chennai.

What Is a High-Rise Building?

Under the Tamil Nadu Combined Development and Building Rules, buildings above 18.30 metres are generally treated as High Rise Buildings.

These projects require stricter scrutiny because they involve higher public safety and infrastructure concerns, including:

• Fire safety access
• Road width
• Setbacks
• FSI compliance
• Parking requirements
• Structural safety
• Water and sewerage feasibility
• Electricity load and TANGEDCO-related requirements
• Environmental and other department NOCs, wherever applicable

So, the new change does not mean HRB rules have been relaxed. It only changes the approval authority and process flow.

What Was the Earlier HRB Approval Process?

Previously, the HRB approval route in Chennai was longer.

The usual process was:

Developer / Applicant → CMDA scrutiny → HRB Scrutiny Panel → Government approval → CMDA planning permission

This meant that even after technical scrutiny and panel recommendation, the file still had to move to the Government for final approval. Only after that could CMDA issue planning permission.

For developers, this created an additional waiting period and made project timelines less predictable.

What Is Permitted Now?

Now, CMDA has been permitted to directly approve or refuse HRB planning permission within the Chennai Metropolitan Area.

The revised process is:

Developer / Applicant → CMDA scrutiny → HRB Scrutiny Panel → CMDA approval / refusal

This means the final approval stage has shifted from the Government to CMDA.

In simple terms, CMDA is now the direct approving authority for High Rise Building planning permission in CMA, subject to scrutiny and compliance.

The key point is clear: scrutiny remains, but the final approval power has moved to CMDA.

Why This Matters for Developers

This change can benefit developers in several practical ways.

1. Faster Approval Movement

Earlier, the file had to move beyond CMDA even after technical scrutiny. Now, once the HRB panel reviews the proposal, CMDA can take the final decision.

This can reduce unnecessary administrative delay.

2. Better Project Timeline Planning

High-rise projects involve major investment, consultant coordination, financing, marketing and construction planning. A shorter approval route can help developers plan launch and execution timelines better.

3. Reduced Approval Uncertainty

When approval depends on multiple levels, file movement becomes harder to track. With CMDA as the final approving authority, the process may become more direct and easier to monitor.

4. Helpful for Redevelopment and Large Projects

Chennai is seeing increased interest in redevelopment, vertical housing and mixed-use projects. This change can support genuine projects that are already compliant with planning and safety norms.

HRB Compliance and Pre-Approval Checks

The new approval process does not make HRB approvals automatic. CMDA can still refuse planning permission if a project does not comply with applicable regulations, including land use, road width, FSI, setbacks, height restrictions, fire safety, parking, structural safety, required NOCs, and documentation standards.

To avoid delays, objections, or rejection, developers should conduct a thorough pre-approval compliance review before submitting their application. Key checks include verifying land ownership and title, Encumbrance Certificate records, land use classification, road width and access, FSI feasibility, setback requirements, NOC requirements, and overall HRB eligibility.

For developers planning high-rise projects in Chennai, Verified.RealEstate can assist in checking whether the proposed building is compliant with CMDA rules and regulations. They also provide support in reviewing project documents, identifying compliance gaps, and assisting developers through the CMDA approval process to help improve approval readiness and reduce potential delays.

Final Thoughts

CMDA can now directly approve or refuse High Rise Building (HRB) planning permissions in the Chennai Metropolitan Area, eliminating the earlier Government approval stage. This may help streamline the approval process for developers.

However, compliance with CMDA norms, FSI, setbacks, road width, safety requirements and necessary NOCs remains mandatory. Developers should conduct a pre-approval compliance check to identify potential issues before submission

Recently, CMDA clarified that column changes or addition of new columns in stilt parking areas may be permitted, but only under strict conditions.

What Is a Stilt Floor?

A stilt floor is the open ground-level portion of a building mainly intended for:

• Vehicle parking
• Driveway movement
• Entry and exit access
• Common circulation areas

In most apartment approvals, the stilt floor is not treated as a regular habitable floor.

Can Columns Be Added in Stilt Areas?

Yes. CMDA permits:

• Column modifications
• Addition of new columns

But only if:

• Parking spaces are not reduced
• Vehicular movement remains unaffected
• Minimum driveway width is maintained

The most important requirement is maintaining a minimum 3-meter-wide driveway for vehicle movement.

If additional columns reduce the movement space below the required limit, the modification may become a planning violation.

Rules for Non-High Rise and High Rise Buildings

Non-High Rise Buildings (NHRB)

For non-high rise buildings:

• Column changes may be permitted
• Minor deviations may sometimes be tolerated
• Parking and movement must remain unaffected

High Rise Buildings (HRB)

For high-rise buildings, the rules are stricter.

Any changes must not affect:

• Approved parking capacity
• Vehicular circulation
• Fire and emergency movement access

Can Stilt Areas Be Used for Gyms or Play Areas?

This is where many apartment associations face confusion.

In practice, several apartment buildings use portions of stilt areas for:

• Small gyms
• Indoor play areas
• Yoga spaces
• Seating or recreation zones

Such uses are sometimes informally tolerated if:

• Parking norms are still satisfied
• Vehicle movement is not obstructed
• No permanent construction is made

However, legally, the approved plan remains the deciding factor.

What May Become a Violation?

The following modifications may attract notices or enforcement action:

• Permanent enclosure of parking areas
• Brick wall construction
• Commercial gym operations
• Reduction in approved parking spaces
• Narrowing of driveway access
• Obstruction to fire movement

Even “temporary” structures can become problematic if they effectively convert parking areas into enclosed usable rooms.

Why CMDA Treats Stilt Violations Seriously

Unauthorized stilt floor conversion can create major urban and safety problems including:

• Roadside parking congestion
• Fire safety risks
• Blocked emergency access
• Loss of approved parking facilities

In some cases, violations can affect:

• Completion certificates
• Building regularisation
• Property resale
• Bank loan approvals

Important Practical Point for Apartment Owners

Association approval alone may not be enough.

Even if residents collectively agree to use a stilt area as a gym or recreation zone, authorities may still object if the sanctioned parking layout is compromised.

Before making structural or usage changes in stilt parking areas, owners should verify:

• Approved CMDA plan
• Parking compliance
• Fire safety norms
• Driveway clearance requirements

Conclusion

CMDA rules do allow limited flexibility in stilt floor modifications, including column changes and certain common recreational uses. However, the core requirement remains unchanged — parking functionality and vehicular movement must not be compromised.

Temporary recreational use may sometimes continue without issue, but permanent conversion of parking areas can result in planning and legal complications for apartment owners and associations.