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Urban Redevelopment Authority (URA)

Roof

Find out what you can change at the roof level of your terrace house.

Last updated 6 June 2026

Pitched Roof

Isometric view of a house diagram showing permissible building envelope, setbacks, road buffer, and road reserve line.

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

Flat Roof / Terrace

Diagram showing permissible building envelope with accessible terrace areas marked in red. Includes setback lines and road reserve.

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 illustration of a house inside a dashed red permissible building envelope, including an open side pavilion.

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 two-story townhouses with dimensions: 1.0m high parapet and 1.8m high party wall, outlined in red.

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

A 1.8m party wall shall be provided along the common boundary line of two adjacent terrace houses.