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Terminology Explained
A-Z - definitions of commonly used terminology associated with Amendment 548
AHD
Refers to the Australian Height Datum. This is a datum surface adopted by the National Mapping Council to which all vertical mapping can be referred against.
Building Height
Refers to the vertical distance from natural ground level to the uppermost part of the building, and includes all lift motor rooms, lift overruns, and architectural features.
Cash-in-lieu
Refers to funds payable by landowners/developers towards the cost of providing public parking facilities at specified locations in lieu of providing a portion of the required parking on their individual development sites.
Developer Contribution
Refers to the share of infrastructure costs (towards streetscape works, street furniture, lighting, footpath upgrades and carriageway realignments) payable by landowners/developers in respect to a particular development.
Natural Ground Level
Refers the levels on a site preceding a proposed development, excluding any site works unless approved by the Council or established as part of subdivision of the land preceding development.
Plot Ratio
Refers to the ratio between the general floor area of a building and the site on which it is located. For example, a 2000m² building on an 1000m² site has a plot ratio of 2:1, where as a 500m² on the same site would have a 0.5:1 plot ratio.
Residential Design Codes
(R-Codes) Refers to the State Government document which aims to provide a basis for development control of residential development throughout Western Australia. Copies of the R-Codes can be purchased from the State Law Publisher.
Residential Density
Refers to the number of dwellings permitted on a site. Traditionally, an ‘R80’ coding allowed 80 dwellings per hectare of land and an ‘R160’ coding allowed 160 dwellings per hectare of land. Today, the general method of calculating how many apartments would be allowed to be built on a site is to divide the lot size by 125 for R80 coded areas and by 62.5 for R160 coded areas. Please note: residential density for single-house and town-house/villa type development is calculated by dividing the lot size by 180 for both R80 and R160 codings.
Solar Access
Refers to the amount of sunlight accessible to a space. A lack of solar access is often referred to as overshadowing. |
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