1) for carrying out further construction on your floor you need to have your floor plans sanctioned by MCD

2)delhi Govt has relaxed norms for construction of 3rd floor . you dont need NOC from other flat owners for construction of 3rd floors iin Delhi . however aspects such as structural safety , fire safety , non obstruction of passages , air and sunshine of neighbors will have to be considered while sanctioning building plans . decision will be taken on merits but existing flat owners will have chance to furnish their views

as per Master Plain Delhi 20 21 in residential areas permission was granted for construction of 3rd floor but SC had stayed order pending final decision on master plan 21 . owners can carry out construction provided they give affidavit that they will comply with final ordes of court on MPD 202

NOC for third floor is not mandatory anymore in Delhi but the MCD has to give permission after taking into account factors such as impact on structure after construction, etc. At the time of considering the application for sanction to construct additional floors the factors such as the existing condition of the building, the harm that may be caused to it if alteration/addition is made thereto, unhindered air and sunshine reaching the neighbours have to be borne in mind. The decision of MCD to permit additional construction can be challenged in the court.

In a major relief to lakhs of residents in Delhi, the government has relaxed norms for construction of additional floors in residential flats having multiple ownership with an aim to weed out corruption and help people get their building plans sanctioned without any hassle.

As per a new directive, people having right over third floor will no longer require to obtain a no-objection certificate (NOC) from the other floor owners for expansion of third floor. However the municipal corporations to examine structural safety and compliance of building bye-laws while giving approval for construction of the third floor. The municipal corporation would ensure the other aspects such as "structural safety, fire safety, non obstruction of passages and air and sunshine for neighbours and neighbouring buildings" before approving any building plans.

There is a case pending before supreme court in this regard. The Union Urban Development Ministry in 2010 first moved a proposal to lift a restriction on taking mandatory NOC of floor owners if an owner of the third floor wants to go ahead with such construction. The municipal corporations have been sanctioning building plans for construction of third floor taking an affidavit from the applicants that they will abide by the final Supreme Court verdict.