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Urban Redevelopment Authority (URA)

Roof

Find out what you can change at the roof level of your bungalow or detached house.

Last updated 3 June 2026

Pitched Roof

Diagram of a house showing the permissible building envelope and setbacks.

The pitched roof shall be contained within the permissible building envelope.

Flat Roof / Terrace

Isometric diagram showing the permissible building envelope of a house with accessible terrace and setback dimensions.

Roof with less than 3m below the top extent of the permissible building envelope shall be a RC flat roof only. It must remain non-accessible except for maintenance purpose.

Roof terraces may be proposed on the attic floor. They shall be located at least 3m below the top extent of the permissible building envelope.

Pavilion / Trellis / Canopy

Isometric view of a house showing building envelope, setbacks, and open pavilion with dotted red lines and labels.

Pavilion, canopy or trellis may be allowed over the roof terrace provided it is located within the permissible building envelope.

Parapet / Party Wall

Isometric view of a house with a 1.0m high parapet, marked in red, and vegetation. A pool, yard, and walkway are also shown.

A 1.0m high parapet along the perimeter of the roof terrace/roof garden shall be provided.