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The Delhi Development Authority (DDA) has introduced a revised policy allowing owners of DDA flats to undertake specified additions, alterations and regularisation of existing modifications, subject to prescribed conditions. The framework requires approvals from the competent authority, certification by registered architects and structural engineers, and compliance with building bye-laws, structural safety and common area regulations. The policy also prescribes documentation, timelines and inspection procedures, aiming to provide a uniform mechanism for regulating modifications while ensuring the safety and integrity of residential buildings.
Flat owners in Delhi Development Authority (DDA) housing colonies will be able to undertake specified additions and alterations under a revised policy that establishes a standard approval framework while placing greater emphasis on structural safety, regulatory compliance and protection of common areas. The policy provides residents with an avenue to obtain permission for proposed modifications as well as regularise eligible existing alterations, provided they satisfy the conditions laid down by the competent authority.
The revised framework applies to DDA flats located within development areas administered by the authority, while applications concerning properties in other jurisdictions will be processed by the respective Municipal Corporation. Every proposal must be prepared and certified by an architect registered with the Council of Architecture, while a qualified structural engineer is required to certify the structural safety and stability of the existing building before any permission is granted. The policy also mandates online submission of applications along with the prescribed fee and supporting documents.
The policy makes it clear that structural integrity cannot be compromised while carrying out modifications. Adequate light and ventilation must continue to be maintained in habitable spaces, existing building services should remain accessible for maintenance, and alterations must not infringe upon the rights of neighbouring residents. It further reiterates that common facilities, including terraces, staircases and designated shared open spaces, cannot be appropriated for the exclusive use of individual flat owners. For buildings constructed before 21 March 2001, structural audits will be mandatory in specified categories of alterations in accordance with the notification issued by the Government of the National Capital Territory of Delhi.
Where alterations affect common structural elements or require changes involving multiple dwellings, the policy requires joint applications from owners within the concerned vertical block. In situations where not every owner intends to participate, applicants must obtain a no-objection certificate from those who are not undertaking the proposed work. If original architectural drawings are unavailable, the policy prescribes a procedure for preparing measured drawings, followed by verification by the sanctioning authority before any proposal is considered.
Applicants are required to furnish ownership documents, structural stability certificates, supervision certificates from the architect and engineer, indemnity bonds where applicable, and declarations confirming compliance with the prescribed norms. The competent authority has up to 30 days to communicate its decision after receiving a complete application. Upon completion of the approved work, owners must submit completion documents through their architect within three years, failing which the permission will automatically lapse. The authority also retains the power to inspect completed works and revoke approvals if construction is found to be inconsistent with sanctioned plans or applicable building regulations.
The revised policy seeks to create a uniform process for alterations in DDA flats by balancing homeowners' requirements with planning discipline, structural safety and accountability. By prescribing clearly defined responsibilities for owners, architects and engineers, the framework is intended to reduce ambiguity in the approval process while ensuring that modifications do not compromise the safety or shared character of residential developments.