When applying for a Completion Certificate in Tamil Nadu, small differences between the approved plan and the actual building can happen. To account for this, authorities allow a minor variation of up to 0.30 metres (30 cm) in building dimensions like length and width.

This small tolerance helps adjust for practical construction issues such as alignment differences, plastering, and on-site execution. However, this is only a limited allowance, not a general relaxation.

🏢 In Which Buildings Does the 0.30m Rule Apply?

These building types undergo stricter inspection during Completion Certificate approval due to their size and impact on infrastructure.

This tolerance is only meant for minor construction differences and is not a blanket relaxation. Independent houses and smaller buildings may be checked differently based on local authority rules.

📏 What This Minor Variation Covers

The 0.30m rule mainly applies to small differences between the approved plan and the completed building.

It may cover:

• Slight variation in building length
• Slight variation in building width
• Minor dimensional differences during construction

These differences are checked during site inspection before issuing the Completion Certificate.

🟢 Minor Non-Structural Changes That May Be Allowed

Some small internal changes are usually acceptable if they do not affect safety or planning rules.

Examples include:

• Moving or modifying internal non-load-bearing walls
• Small changes in room sizes
• Slight shifting of doors or windows
• Interior layout adjustments
• Finishing works like false ceiling or wall cladding

👉 These are allowed only if they do not increase built-up area or affect the structure.

🔴 What Is NOT Allowed Under This Rule

The 0.30m tolerance does not apply to major violations.

Not allowed:

• Exceeding FSI (Floor Space Index)
• Reducing setbacks
• Adding extra floors or rooms
• Increasing building height
• Converting parking into rooms
• Encroaching open spaces

👉 Any of these can lead to rejection of the Completion Certificate.

⚠️ Important Practical Nuances Often Missed

✔ Measurement Method Matters

Authorities measure the building from outer wall to outer wall, while many people think in terms of internal room size or carpet area.
👉 This difference can lead to unexpected deviation during inspection.

✔ Plaster Thickness Can Reduce Tolerance

Plastering on both sides of walls (around 12–20 mm each side) can reduce the available margin.
👉 Even a correct structure can exceed limits after finishing.

✔ Projections and External Elements Matter

Sometimes violations come not from the main building, but from small external elements like:

• Sunshades
• Staircase projections
• Parapet extensions

👉 These are also checked during inspection and can cause issues.

⚖️ Why This Rule Is Important

A Completion Certificate confirms that the building is constructed as per approved plans. It is required for:

• Electricity connection
• Water supply
• Sewer connection

Without it:

• Property sale becomes difficult
• Bank loans may be affected
• Legal issues may arise

🏁 A Small Tolerance, Not a Loophole

The 0.30m rule is only a small buffer for minor construction differences. It should not be used as a reason to deviate from approved plans.

The safest approach is always:
👉 Build exactly as per approval
👉 Treat tolerance as backup, not flexibility

📌 Final Takeaway

Minor deviations up to 0.30m may be allowed during Completion Certificate approval in Tamil Nadu, but only within strict limits. Any violation affecting FSI, setbacks, height, or safety will not be accepted.

Following approved plans ensures smooth approvals, legal safety, and long-term property value.

🧾 Hassle-Free Completion Certificate Service

Verified.RealEstate offers end-to-end assistance in obtaining your Completion Certificate by reviewing approved plans, checking on-site dimensions, and identifying any deviations before inspection. Their team helps coordinate documentation, compliance checks, and authority approvals, ensuring a smoother process and reducing the risk of rejection or delays.

This guide explains exactly what is required for filing the Completion Report of a Building Project with TNRERA, including mandatory forms, certificates, declarations, fees, and practical compliance checks — in plain words.

What Is a TNRERA Completion Report?

A Completion Report is a formal application filed by the promoter to inform TNRERA that:

• Construction is completed as per approved plans
• Structural safety is certified
• Utilities and amenities are functional
• The local authority has issued a Completion Certificate

Only after this filing does TNRERA treat the project as legally completed.

Mandatory Documents for Filing TNRERA Completion Report

1. Form-4A – Architect’s Certificate

This certificate confirms that:

• The building or block is fully completed
• Construction matches the approved planning permission
• The local authority has issued a Completion Certificate

Must include:

• TNRERA Registration Number
• Survey / Plot / Door Number
• Village, Taluk, District, PIN
• Latitude and longitude boundaries
• Completion Certificate number and date
• Architect’s signature, seal, and registration number

2. Form-4B – Structural Stability Certificate

Issued by a Registered Structural Engineer, this certifies that:

• The building is designed as an RCC structure
• Dead load, live load, wind and earthquake loads are considered
• Design complies with Bureau of Indian Standards (BIS) codes
• The structure is safe and fit for occupancy

This is non-negotiable. Generic or unsigned certificates are rejected.

3. Form-7 – Annual Statement of Accounts

Form-7 provides financial transparency by declaring:

• Project-wise income and expenditure
• Compliance with escrow and fund usage norms

TNRERA cross-checks this with earlier quarterly filings.

4. Latest Quarterly Progress Report (QPR)

The most recent QPR in the prescribed format must be uploaded, confirming that:

• Construction milestones match declared progress
• No pending structural or amenity work remains

5. Site Photographs

Clear site photographs showing:

• External elevation
• Internal common areas
• Lifts, STP, electrical installations
• Common amenities

Photos must reflect actual completion, not staged visuals.

6. TNRERA Registration Certificates

• Copy of Form-C (Project Registration Certificate)
• Copy of Form-F, if any extension was granted

7. Completion Certificate from Competent Authority

Issued by:

• CMDA / DTCP / Local Body (as applicable)

This certificate proves statutory construction approval compliance and is mandatory.

Declaration on Utilities & Common Amenities (Promoter)

A signed declaration on company letterhead confirming that all essential services are installed and functional.

Water Supply

• Borewell count and yield
• Sump capacity
• Metro Water / Local Body supply
• Total daily water requirement vs availability

Sewerage

Any one or more of the following:

• Connection to municipal sewer
• Sewage Treatment Plant (STP) with capacity and reuse details
• Septic tank with disposal mechanism

Electricity

• Transformer capacity (KVA)
• RMU installation
• Residential and common meters

Lifts

• Number of lifts
• Passenger capacity
• Functional status

Common Amenities

Explicit listing of amenities provided — not optional, not blank.

The declaration includes a verification clause, accepting punitive action for false information.

TNRERA Completion Report Filing Fee

• Fee Amount: ₹5,000
• Account Name: Tamil Nadu Real Estate Regulatory Authority
• Bank: Indian Bank, CMDA Branch, Chennai
• Account Type: Current Account
• IFSC: IDIB000I010

Payment proof must be uploaded along with the application.

*Always verify the latest fee amount and confirm the accepted payment mode (bank transfer / online payment) on the official TNRERA portal before filing, as fee structures and payment methods are subject to regulatory updates.

Common Reasons for Rejection by TNRERA

• Architect certificate without local authority completion reference
• Utilities mentioned as “proposed” instead of functional
• Missing Form-7 or outdated QPR
• Structural certificate without engineer registration details
• Incomplete declaration on amenities

A single inconsistency can delay project closure.

Why Completion Report Filing Matters

Filing the Completion Report:

• Legally closes the project under TNRERA
• Reduces promoter liability
• Improves buyer confidence
• Prevents future penalties and complaints

Platforms like Verified.RealEstate help promoters and buyers verify project status, approvals, and compliance before final handover.

Verified.RealEstate Simplifies the Completion Certification Process

Verified.RealEstate offers comprehensive support to streamline the entire completion certification process for your real estate project. Through the completion-certificate service, their expert team helps gather and verify all required documents, ensures compliance with local building codes and regulatory requirements, handles the application submission to the appropriate authority, and follows up on your behalf until the completion certification is issued.

They also assist in resolving issues flagged during inspections and provide ongoing updates so you stay informed at every stage of the process, significantly reducing delays and administrative hurdles for promoters and developers alike.

Final Word

TNRERA treats Completion Report filing as a compliance checkpoint, not a paperwork exercise. Accuracy, consistency, and truthful declarations matter more than speed.

If even one service is incomplete, the application will not pass.