🏛️ Building Plan Approval
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Building plan approval in Chennai — every authority

CMDA, DTCP, Panchayat or Corporation — every Chennai building needs approval from the right authority before construction starts. Homeli files at all four, end-to-end.

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Quick answer

Building plan approval in Chennai depends on which authority your plot falls under: CMDA for metropolitan area, DTCP for outskirts, Panchayat for village panchayat areas, Corporation for specific municipal corporations. All four require architect-signed drawings, document compilation, online filing and fee payment. Timelines: 30–50 days. Homeli files at all four; we confirm your authority at the first site visit.

Four approval authorities in Chennai

AuthorityCoversTimeline
CMDAChennai Metropolitan Area — central + inner Chennai30–45 days
DTCPOutside CMDA — much of Chengalpattu, Tiruvallur, Kanchipuram35–50 days
PanchayatVillage panchayat-administered areas30–60 days
CorporationMunicipal corporation areas with separate jurisdiction30–45 days

What's common across all four

Why approval matters beyond compliance

Don't start construction before approval. Sealing during construction adds 4–6 months to your timeline. CMDA and DTCP both conduct field inspections in active building zones.

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Frequently asked

Who issues building plan approval in Chennai?
Depending on the plot's location: CMDA (Chennai Metropolitan Development Authority) for the metropolitan area, DTCP (Directorate of Town and Country Planning) for outskirts, Panchayat for village panchayat areas, and specific municipal Corporations for their jurisdictions. Homeli files at all four; we confirm the right authority during the first site visit by checking master-plan jurisdiction maps.
How much does building plan approval cost in Chennai?
For a typical 1,500 sq ft residential home: CMDA ₹60,000–₹1,40,000 total (₹40,000–₹80,000 refundable), DTCP ₹50,000–₹1,20,000 total (₹30,000–₹65,000 refundable). Panchayat and Corporation are similar ranges with local variations. Includes development charge, scrutiny fee, refundable security deposit, infrastructure fees and consultant fee. Homeli's consultant fee is ₹15,000–₹50,000 depending on scope.
What documents do I need for building plan approval?
Patta, title deed, latest encumbrance certificate (within 30 days), current property tax receipt, owner's Aadhaar and PAN, survey/FMB sketch, architect-signed drawings (plan, elevation, section, site plan), structural drawings with stability certificate, affidavit, application form, and case-specific NOCs (fire NOC for larger buildings, AAI for plots near airports, CRZ for coastal plots within regulation zone).
How long does building plan approval take?
Clean files clear in 30–50 days depending on authority: CMDA 30–45 days, DTCP 35–50 days, Panchayat 30–60 days (varies by panchayat efficiency), Corporation 30–45 days. Files with objections add 15–30 days per clarification cycle. Homeli's pre-checked files clear first-shot most often.
Can I start construction without building plan approval?
No. Starting unapproved construction risks: sealing mid-project (adds 4–6 months), demolition orders, denial of utility connections (EB, water, sewerage), bank loan disbursement blocks, resale value loss (30–40% discount), legal cases. Always get approval first. Homeli typically files for approval in parallel with finalising the contractor — so timeline impact is minimised.
What is the difference between building plan approval and building license?
"Building plan approval" and "building license" are used interchangeably in everyday Chennai conversation — both refer to the official sanction from CMDA/DTCP/Panchayat/Corporation to construct as per submitted plans. Technically, the building license is the issued document that confirms approval. There is no separate process; one sanction covers both.

Related guides

CMDA ApprovalMetropolitan area DTCP ApprovalOutskirts Panchayat ApprovalPanchayat areas Corporation ApprovalMunicipal Architectural ServicesDrawings first House ConstructionAfter approval