The project type(s) that you can select depend on the assessment pathway for the proposed development (assigned automatically by the BASIX tool based on the selections you made when starting the BASIX application).
There are 3 assessment pathways: single dwellings, multi-dwellings, and alterations and additions to an existing home.
Single dwelling assessment pathway
For this pathway, you must select one of the following dwelling types:
- Dwelling house (detached) – a dwelling that is not attached to any other dwelling or building
- Dwelling house (attached) – a dwelling that is attached to another dwelling or building
- Dwelling above another building – a dwelling which is above another building or dwelling
You also need to enter the number of bedrooms and indicate whether it is a secondary dwelling (such as a granny flat).
Multi-dwelling assessment pathway
For this pathway, you must provide details for all the dwelling types in the development:
- Number of single dwelling houses (one dwelling per lot) – for example, if there are 2 houses on 2 separate lots, you enter 2.
- Multi-dwelling housing – number of dwellings (more than one dwelling on a single lot, including townhouses, villa units and dual occupancy) – for example, if there are 4 townhouses on one lot, you enter 4.
- Number of residential flat buildings – enter the number of buildings and, for each building, the number of dwellings (apartments) and the number of storeys.
Note: For the multi-dwelling assessment pathway, there is a limit of 1,000 dwellings across all dwelling types. You can request approval to exceed this limit by contacting the BASIX team via our Contact us form.
Alterations and additions assessment pathway
For this pathway, you must select one of the following dwelling types:
- Dwelling house (detached) – a dwelling not attached to any dwelling or building
- Dwelling house (attached) – a dwelling attached to another dwelling or building
- Dwelling above existing building – a dwelling located above another building or dwelling
You must also choose the appropriate option to indicate:
- whether the development cost of the renovation work is $50,000 or more, and
- whether it involves a pool and/or spa of 40,000 litres or more.