Small-lot houses

Brisbane City Plan 2014 (City Plan) has been developed by Brisbane City Council in consultation with the community to support a simple, fast and clear development assessment process. The plan guides how land in Brisbane can be used and developed to support economic growth, while protecting our city’s character and natural assets. 

The City Plan allows for a variety of smaller housing options to cater for Brisbane’s increasing proportion of older residents, single and couple households. The plan provides you with upfront information to consider in planning your small lot house and will help you determine whether or not you need to lodge an application with Council. This factsheet outlines how the City Plan applies to building a house on a small lot and how to check if you need to lodge an application.

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What is a small lot?

A small lot is either:

  1. a lot with an area less than 450 square metres; or
  2. a rear lot with an area less than 600 square metres, excluding the access way.

Do I need Council approval for a small lot development?

In most cases, if you are building a house on an existing or newly created small, you do not need to submit an application to Council provided you follow some basic design requirements.

A PD Online property enquiry can help you determine if the proposal requires Council approval. You can also phone Council on (07) 3403 8888 during business hours and ask to speak to a town planner. 

While Council aims to assist you through the process, you may wish to engage a consultant, town planner, surveyor or other appropriately qualified professional for help with your building or development project.

Accepted development

The proposed development does not need assessment against City Plan.

Accepted development, subject to requirements

For certain common development types you may not need to lodge a development assessment application (i.e it may be accepted development, subject to requirements). To check whether or not your application is accepted development, subject to requirements or requires a development assessment application, Council recommends you engage with an  appropriately qualified professional.

Code assessable

You need to apply to Council to assess your assessable application against the relevant codes in City Plan. This application will not require public notification. 

Impact assessable

You will need to apply to Council to assess your application against the relevant codes in City Plan. Depending on the type of development, the assessment can range across all provisions of the City Plan. This application will need public notification (signage on site, notice in paper and letters to neighbours).

How can I assess my own small lot house development?

To assess your own development, you need to meet the acceptable outcomes of the Dwelling house (small lot) code, and any relevant overlay and neighbourhood plan codes. Even if you meet the acceptable outcomes and are not required to lodge an application, you will still need a building certifier to approve the work before starting construction.

What are the design requirements for a house on a small lot? 

Because of the smaller size of the site, the Dwelling house (small lot) code includes specific requirements for setbacks, site cover and building height to protect you and your neighbour’s amenity and privacy. An indicative building envelope is shown below. These will vary depending on the development type and location.

House height

In most residential zone precincts, a maximum 9.5 metre house height applies to the highest point of the roof. Rear and side wall heights cannot be higher than 7.5 metres and the maximum pitch to the highest part of the roof top cannot exceed 30 degrees. A side wall built to the boundary may only be up to three metres high and up to nine metres long. The section below details where built to boundary walls are permitted.

Distance to neighbouring properties

House setbacks, particularly on smaller lots, are designed to minimise noise, maintain privacy and reduce shadowing impacts on neighbouring properties. Depending on the site and the existing neighbouring development, the allowable side setbacks may vary.

The acceptable standard is that a distance of one metre is required between the side wall of your house and the habitable rooms of neighbouring houses. Depending on your zone and the location of the habitable rooms on adjoining properties, you may be able to build closer to your side boundary. 

Other design requirements

The Dwelling house (small lot) code outlines several other critical design considerations that must be met before it can be determined if an application is required (accepted development, subject to requirements criteria). Refer to Council’s online ePlan (electronic version of Brisbane City Plan 2014) to read more about these criteria.

How do overlays and neighbourhood plans affect my small lot development?

Overlays and neighbourhood plans may add certain requirements or considerations to your small lot development. These requirements are detailed in the overlay and neighbourhood plan code/s that apply to your property.

If certain overlays apply to your property, such as the Heritage overlay, you will need to apply for Council approval, regardless of your house design. For other overlays, such as the Waterway corridors overlay, if certain criteria specified in the overlay code can be met, an application to Council is not required. If those criteria are not met, an application to Council must be made.

Example

Mrs Smith’s property is within a Local waterway corridor overlay. To be exempt from lodging an application her house must meet the acceptable outcomes of the Waterway corridors overlay code, including being set back a minimum of 15 metres from the centre-line of the local waterway corridor. If her house does not meet these criteria, Mrs Smith will need to lodge a development application with Council.

Tips for determining if you need to lodge an application

  • If you are assessing your own small lot house, we recommend you engage a building certifier; or consultant to confirm that you do not need to apply to Council.
  • A building certifier must approve any work before you start construction. This is separate to Council’s development approval. Visit www.qbcc.qld.gov.au for more information about building approvals and building certifiers.

How can City Plan help with my small lot development?

The City Plan interactive mapping tool allows you to view your property on a map to see the overlays and neighbourhood plans that apply to your site. The maps are colour and number coded to help you clearly identify the relevant zones and precincts within an area.

More information

You can lodge your application by emailing dalodgement@brisbane.qld.gov.au. You may wish to engage a consultant town planner, surveyor or other appropriately qualified professional to prepare the application for you.

You can also attend one of the Talk to a Planner sessions that Council holds throughout the year to speak to a Council officer in person. 

For more information about City Plan and to access the interactive mapping tool, visit www.brisbane.qld.gov.au and search for Brisbane City Plan 2014 or call Council on (07) 3403 8888.

If you would like to be kept up to date with future services and general planning and development in the city, you can register your details by emailing CP2014@brisbane.qld.gov.au.

Disclaimer: The content of this information sheet is a summary and has been prepared to assist the reader to understand the City Plan. Please refer to the full City Plan document, entitled Brisbane City Plan 2014, on Council’s website for further detail.

03 July 2017