The formulae to determine the maximum number of dwelling units (DUs) shall not apply to HDB flats and Serviced Apartments, and developments within the Central Area (PDF, 436 KB).
As a guide, all self-contained DUs island-wide shall be more than 35sqm nett in internal area.
The formulae in the following tabs for calculating the maximum allowable number of DUs are intended to derive an upper bound figure1. The actual number of DUs that may be supported in any development shall be assessed based on the site context, existing site conditions and the impact on the local infrastructure. URA shall assess the overall layout, design and unit sizes of the residential development proposals, and may add other requirements where necessary to protect the quality of the living environment.
There shall be provision of a good mix of unit sizes including larger DUs that can cater to the needs of larger families. An example is a development where about 20% of the DUs have a nett internal area of at least 100sqm, excluding voids, balconies, air-conditioner ledges and other external areas, and units of nett internal area less than 50sqm shall not exceed about 20% of the proposed DUs1.
1 These guidelines shall apply to the residential component of mixed-use developments (e.g. Residential with Commercial at 1st Storey or Mixed Commercial and Residential developments)
For all flats and condominium developments outside the Central Area, excluding the estates shown in Maps 2-10 (PDF, 1.93 MB), the maximum number of allowable DUs per residential development shall be determined based on the following formula:
2 Excludes bonus GFA (ie if the proposal is a mixed development, only the proposed GFA for the residential component shall be used in the calculation, excluding bonus GFA).
3 The GFA of any proposed strata landed units shall be excluded from the calculation in the formula.
For all flats and condominium developments in the estates outlined in Maps 2-10 (PDF, 1.93 MB) a more stringent DU guide shall be used. The maximum number of allowable DUs per residential development within these estates shall be determined based on the following formula:
Last updated on 5 July 2019