Subdivision
The same regulations apply for a Subdivision
The minimum lot size in a Low - Medium Density Residential Area (previously known as Res B) is 400m2 with a minimum of 10 metre frontage. The Council is not very supportive of applications for lots less than 400m2.
If your property is located in a Low - Medium Density Residential Area and in the Demolition Control Precinct then the minimum lot size is 450m2 with a minimum frontage of 10m2.
Tip: If you purchase a property in a demolition control precinct, make sure to check that the house on the block is not built prior to 1946. The Council is not very supportive of demolishing houses built prior to 1946. Click here and then click aerial photography 1946 to check if your house was build prior to 1946, there you can also check if your house is located in the demolition control precinct. Contact your town planner for advice on demolishing your property.

House
A house that complies with the self assessable acceptable solutions of the House Code does not require a development application to Brisbane City Council. The house will need to be checked by a registered building certifier.
Building a house in a Demolition Control Precinct requires a code assessable development application to Brisbane City Council.
Single Unit Dwellings
However, a 9.5m and 3 storey height and a maximum gross floor area of .6 times the site area can be achieved if your property has a frontage of 15.5m or more and is within 200m radius of any pedestrian entry to a railway or busway station, or fronts an arterial route, or containing a building over 8.5m above ground level or over 2 storeys is more than 10m from any lot containing a house (where no approval for multi-unit dwelling or single unit dwelling exists).
A code assessable development application is required to be made to Brisbane City Council where your development application does not involve building work.
An impact assessable development application is required to be made to Brisbane City Council where your development application involves building work.
Tip: If you are thinking about purchasing land where you could potentially build single unit dwellings, make sure that you look that the land is located in a Low-Medium Density Residential Area, is at least 600m2 and has a 17 meter frontage to a street. These blocks usually hold better value as there is potential for development.
Multi Unit Dwellings (Units/Townhouses)
If you are planning to build units or townhouses then the minimum lot size is 600m2 with a minimum frontage of 17m. Gross floor area is no more than 0.5 times the site area and building height at any point is no more than 8.5m above ground level and 2 storeys.
However, a 9.5m and 3 storey height and a maximum gross floor area of .6 times the site area can be achieved if your property has a frontage of 15.5m or more and is within 200m radius of any pedestrian entry to a railway or busway station, or fronts an arterial route, or containing a building over 8.5m above ground level or over 2 storeys is more than 10m from any lot containing a house (where no approval for multi-unit dwelling or single unit dwelling exists).
An impact assessable development application is required to be made to Brisbane City Council where your development application complies with Residential Design-Low Density, Character and Low-medium Density Code.