What is Building Density?
Building density (measured by dwelling unit per hectare or dwelling unit per ERF) is based on town planning regulation and is used to determine how crowded (built-up) a building is allowed to be. The density of a building is also used to determine land and building worth.
Building vs Residential Density
Residential Density is the measure of the residential development on a specific site or within a specified geographic area. This is usually expressed in terms of either the number of dwelling units or the number of bedrooms per unit of land area. Residential density may be calculated on the basis of gross or net land area. Density restrictions are used to control the size of any given development so that the resulting level of development can be:
- Accommodated on the land without the destruction of the physical or environmental character of the area;
- Serviced adequately by the existing and planned infrastructure and social facilities;
- Provided with adequate open space;
- In balance with the function of the particular area;
- Respectful of the rights of residents to enjoy adequate light, ventilation, views, and privacy.
The actual gross or net density which is permitted on a particular site depends on the size of that site, the physical characteristics of the site and the general density standard established in relevant area plans and policies for the area in which the site is located.
