**Executive Summary**
This document details amendments to the Tamil Nadu Combined Development and Building Rules, 2019. It defines "self-certified residential buildings" and outlines the procedure for submitting building plans under self-certification. The document also specifies planning parameters and building rules for self-certified residential buildings. The document is effective as of August 8, 2025.
**Key Points / Main Content**
* **Definition of "Self-Certified Residential Building":**
* A building on a plot up to 2,500 sq.ft.
* Floor Space Index area up to 3,500 sq.ft.
* For residential purpose with a maximum of two dwelling units.
* Ground plus one floor or stilt plus two floors up to 10m in height.
* **Eligibility for Self-Certification:**
* The applicant must be the owner of the land, a leaseholder, or a power of attorney holder intending to construct, reconstruct, or develop a self-certified residential building.
* Eligible applicants can submit building plans under the self-certification scheme.
* **Application Submission Procedure:**
* The applicant must upload details of the applicant, plot, and proposed building, along with specified documents.
* Required documents include: site photographs, self-attested sale deed, Patta/Town Survey Land Register, approved layout/sub-division plan (if applicable), and a building plan.
* The building plan must be in PDF format, comprising three A4-sized sheets, and must include site plan, specifications, key plan, and other required details.
* Uploaded building plans must adhere to specified scales and include required dimensions, setbacks, room details, and other information.
* The applicant must certify the trueness of the information furnished and indemnify the authority.
* **Planning Parameters and Building Rules:**
* Minimum road width, Floor Space Index (FSI), and setbacks are regulated based on area type (Continuous Building Areas, Economically Weaker Section Areas, Other Areas).
* Specific setback requirements are defined for front, side, and rear setbacks based on building height and plot width.
* Buffer zones are specified for water bodies.
* Buildings must comply with specified rules from Part VII of the Tamil Nadu Combined Development and Building Rules, 2019, and parking requirements in Annexure IV.
**Impact Analysis**
**Impact: Landowners, Leaseholders, and Power of Attorney Holders**
* **Impact:** The document affects those intending to construct or reconstruct residential buildings on their properties. These parties may find the self-certification process more efficient.
* **Action Required:** Applicants must adhere to the specified eligibility criteria, document requirements, and planning parameters when submitting building plans. They must ensure the accuracy of the provided information and indemnify the authorities.
* **Impact: Architects and Registered Engineers**
* **Impact:** Architects and Registered Engineers will need to be familiar with the new requirements and prepare building plans that comply with the self-certification process.
* **Action Required:** Ensure plans are submitted as PDF according to the updated format and content requirements in the document.
Key Entities Referenced
Tamil Nadu Combined Development and Building Rules, 2019: The primary regulatory document being amended, governing development and building activities in Tamil Nadu.
Self-certified residential building: Defines the type of building eligible for self-certification under the amended rules.
Tamil Nadu Town and Country Planning Act, 1971: Act that confers power on government to make amendments in rules.
Housing and Urban Development Department: The department responsible for issuing the amendments to the building rules.