Complete Guide to Coimbatore Corporation Building Plan Approval in 2026
Constructing a home or commercial building in Coimbatore is an exciting milestone, but obtaining a valid municipal building sanction is the single most important legal prerequisite. In Tamil Nadu, the entire approval process has transitioned to the digital Online Building Plan Approval System (OBPAS).
Key Requirements for 2026 Approval
Under the unified Tamil Nadu Combined Development and Building Rules (TNCDBR), your land must satisfy key structural and legal criteria:
- Road Width: Minimum 7.0 meters for non-high-rise residential buildings in corporation limits.
- FSI (Floor Space Index): Typically ranges from 1.5 to 2.0 based on road width and plot frontage.
- Setback Rules: Front, rear, and side setbacks must be strictly maintained per building height brackets.
Common Pitfalls to Avoid
Applications are frequently rejected or delayed due to mismatched revenue Patta survey numbers, unverified parent documents, or AutoCAD layers that fail the auto-DCR validation engine. Engaging an experienced liaison consultant ensures your blueprints pass automated checks on the first attempt.
Have Questions About This Approval Process?
Our Coimbatore town planning consultants are here to review your documents free of charge.
