Residential development in suburban zones
The Brisbane City Plan 2014 (City Plan) and the Queensland Government’s Queensland Development Code (QDC) allow for a range of developments to be carried out on a residential property. This factsheet outlines how City Plan and building legislation applies to various types of residential development in your neighbourhood if it’s located in the Low density residential zone or the Character residential zone. It also outlines the relevant key design requirements including building near boundaries.
What development might I expect in my neighbourhood?
In a Low density residential or Character residential zone the most common form of development is a ‘dwelling house’, which is the use of up to two dwellings, one of which is a secondary dwelling such as a granny flat. More information on secondary dwellings, including basic design requirements, can be found in Council’s City Plan fact sheet for residents (Granny flats). A dwelling house can also include outbuilding such as a carport or shed.
The development you may reasonably expect in your suburban neighbourhood can range from small projects, such as a pool or a new deck, through to extensions to increase living or recreation space, demolition or complete replacement. Other improvements that might be expected include the installation of boundary fences and retaining walls. Some residents in your neighbourhood might also want to operate a home business from their property. More information on home-based businesses is provided in Council’s City Plan fact sheet for residents (Home-based businesses).
Are there types of minor residential work that do not need planning approval?
There are some types of residential development that do not require planning approval under City Plan. These are referred to as accepted development.
On small lots, this includes minor building work such as extensions to an existing dwelling house within the acceptable outcomes for maximum building height, building length, setbacks (front, rear and side) and built to boundary walls where developed and explained in the Dwelling house (small lot) code (see Table 1 of this fact sheet).
Generally, retaining walls less than 1m high are not assessable against City Plan. Retaining walls greater than 1m, not assessed as part of a dwelling house, are assessable in their own right and need to adhere to the design requirements in the Filling and excavation code, which address visual impacts to neighbours and other matters.
Dividing fences less than 2m high are also generally not assessable against City Plan. Fences are regulated by the Neighbourhood Disputes (Dividing Fences and Trees) Act 2011.
A detailed list of all types of accepted development is contained in Table 188.8.131.52 in Part 5 of City Plan.
My residential development is not accepted development - does it need planning approval?
Certain residential development that complies with nominated requirements may also avoid the need for formal planning approval.
Accepted development does not require a development approval but must comply with the requirements identified as acceptable outcomes in the relevant parts of the applicable code(s).
Accepted development that does not comply with one or more of the nominated acceptable outcomes will require a planning application.
It is important to remember that while a residential development may be an accepted development, other approvals may still be required such as a building approval from a private building certifier.
When does a residential development require planning approval?
There are types of residential development that are not considered accepted development or may otherwise not comply with one or more of the nominated requirements for accepted development and require further assessment against City Plan. These are referred to as accepted development, subject to requirements, code assessable and impact assessable development. Council’s City Plan fact sheet for residents (Using the City Plan) outlines the rules for determining the assessment criteria (assessment benchmarks) based on the type of assessment required.
Generally, dwelling houses greater than 9.5m high are code assessable.
When does a residential development require building approval?
Building approvals are generally required before starting construction on most types of domestic building work. The purpose of having a building approval is to ensure the relevant codes and standards described in the Building Code of Australia and Queensland Development Code (QDC) are reflected in the design and construction of new buildings and extension and alterations to existing buildings.
A building approval can be obtained from a private building certifier. All building certifiers in Queensland must be licensed with the Queensland Building and Construction Commission. Building certifiers will also be able to advise whether a building approval is required.
What is an overlay?
Overlay maps describe different features that also need to be considered when developing land, for example flooding, heritage and timber and tin character. Some overlays on a specific property may trigger the need for a planning approval for some residential developments. Council’s City Plan fact sheet for residents (Overlays) will help you understand overlays and what you need to consider when submitting an application.
How close can a neighbour build to my boundary?
The minimum setbacks and boundary clearance requirements are generally described in the form of a building envelope in City Plan and the QDC (refer to Table 1). The purpose of a building envelope is to position buildings or structures in a location which best protects, or has the least impact on, the amenity of neighbours and the aesthetics and character of neighbourhoods.
What are the other key design requirements of dwelling house developments that are assessed against City Plan?
City Plan contains key design requirements for dwelling houses in the Dwelling house code and the Dwelling house (small lot) code. These requirements are intended to provide good residential design that promotes the efficient use of a lot and an acceptable level of amenity to residents and neighbours. Some examples are provided in Table 1, which also includes some requirements from the QDC. More information about dwelling houses on standard lots and small lots is also provided in Council’s City Plan fact sheet for residents (Houses and Small-lot houses).
Table 1 - Key design requirements for dwelling houses and ancillary structures
Minimum boundary setbacks vary depending on the site and the existing neighbouring development. Some examples are provided below.
|Request for referral agency response (QDC) Siting variation
The approval for most proposals can be handled by a building certifier and does not require Council approval, however a referral agency response from Council may be provided as part of the application. City Plan provides alternate siting acceptable outcomes to the QDC - MP 1.1 – Design and siting standard for single detached housing - on lots under 450m² in the Dwelling house (small lot) code.
If a proposal complies with the acceptable outcomes of the Dwelling house (small lot) code and any alternate siting provision of that code, an application for a siting variation may not be required.
If a proposal does not comply with the acceptable outcomes of the Dwelling house (small lot) code, including building within the building envelope, a development application may be required.
A building envelope is the three dimensional extent of where a building and associated structure may be built on a site after consideration of limits set on height, set back and other similar measures (refer to Figure a).
Download Figure A (Word - 392kb).
|Lots 450m² and over⁽³⁾
Boundary setbacks vary depending on the site, the existing neighbouring development and the height of the building. These are set by the QDC and are not included in City Plan. Some examples are provided below:
Side and rear
|Request for referral agency response (QDC) Siting variation
A building approval for most proposals can be handled by a building certifier and does not require Council approval. A siting variation is not necessary if the proposal meets the acceptable solutions of the QDC - MP 1.2 – Design and siting standard for single detached housing - on lots 450m² and over. The building regulations allow for certain types of structures to be located outside the building envelope. For example, an open carport, pergola and swimming pool. These types of structures are generally non-habitable, minor in nature or otherwise small in scale.Siting variation applications are prepared and assessed by private building certifiers as the assessment manager. Council is a referral agency for providing advice to building certifiers (assessment managers) on whether an application satisfies the performance criteria of the QDC.
- Refer to the Dwelling house (small lot) code in City Plan for a full detailed list of relevant design requirements. Also refer to QDC - MP 1.1 – Design and siting standard for relevant design requirements.
- Primary street frontage is the street frontage that is most commonly addressed by other buildings in the block. Where a lot has more than one frontage, the secondary street frontage is not the primary street frontage.
- Refer to the Dwelling house code in City Plan for a full detailed list of relevant design requirements. Also refer to QDC - MP 1.2 – Design and siting standard for relevant design requirements.
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Disclaimer: The content of this information sheet is a summary only and has been prepared to assist the reader to understand City Plan. Refer to the full City Plan document, entitled Brisbane City Plan 2014 for further detail.