Table 1 : Maximum Domestic Plot Ratios – Main Urban Areas

[Table Summary]

Density Zone Type of Area Location

Maximum Domestic Plot Ratio


R1 Existing Development Area Hong Kong Island 8/9/10 (i) (ii)
R1 Existing Development Area Kowloon & New Kowloon 7.5 (iii) (iv)
R1 Existing Development Area Tsuen Wan New Town (covers Tsuen Wan, Kwai Chung & Tsing Yi Island) 8 (ii) (v)
R1 New Development Area and Comprehensive Development Area New Development Area and Comprehensive Development Area 6.5 (vi) (vii)
R2     6 (viii) (ix)
R3     3.6 (viii) (ix)



- The Table only gives an indication of the maximum plot ratio which may be allowed for a particular area.  However, where there are significant constraints on development capacity (such as transport or infrastructure limitations, environmental, topographical or geotechnical conditions, or heritage and nature conservation), other planning principles and urban design considerations (including local character and setting, building height profile and massing of the neighbourhood, air ventilation and visual impacts on the surroundings, protection of important physical features such as ridgelines), or special design considerations, a lower plot ratio may be specified when considered appropriate and possible.

- In some areas, maximum plot ratios may not be achievable due to Airport Height Restrictions.

(i) Maximum domestic plot ratio of 8, 9 and 10 depends on Site Class A, B and C respectively.

(ii) If there is non-domestic floorspace, maximum domestic plot ratio will be reduced according to the provisions of the B(P)R composite building formula.

(iii) The maximum domestic plot ratio is in accordance with those stipulated on statutory town plans and site class is not relevant.

(iv) If there is non-domestic floorspace with a plot ratio in excess of 1.5, maximum domestic plot ratio will be reduced by the amount of this excess.

(v) For this first generation New Towns (i.e. Tuen Mun, Sha Tin, Fanling / Sheung Shui, Tai Po, Yuen Long and Tsuen Wan), lease modifications for higher plot ratios than those applicable prior to September 1981 should be permitted only if the proposed development forms the whole or a substantial part of a comprehensive redevelopment plan prepared or approved by the planning authority.

(vi) Higher maximum domestic plot ratios may be permitted in Comprehensive Development Areas having regard to local circumstances, such as infrastructure capacities. However, for New Development Area and CDA for Tsuen Wan, Kwai Chung & Tsing Yi Island, the maximum plot ratio is normally 5.

(vii) Any non-domestic plot ratio component may be in addition to the domestic plot ratio, up to the maximum permitted by the B(P)R composite building formula or those of the statutory town plans.

(viii) In existing development areas this maximum domestic plot ratio can only be imposed in the case of lease modifications or Section 16 applications, unless it is incorporated in the statutory town plans.

(ix) In Special Control Areas, maximum domestic plot ratio may be further limited.

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   Last revision date : July 2016