An overlay on a property is an additional layer of planning controls and mapping rules applied by local or state government that sits on top of your land's basic zoning (https://urpec.com.au/what-is-an-overlay/).

Unlike zoning, which dictates the primary use of the land (e.g., Low Density Residential), an overlay flags a specific environmental constraint, heritage value, natural hazard, or design requirement that you must address when building, renovating, or subdividing. An overlay rarely means you cannot build at all, but it means you must build or design differently, often requiring a planning permit, specialist reports, or extra construction standards.

Flood overlays identify land susceptible to river, creek, or overland flooding and triggers specific council planning, engineering, and building controls. To learn more about the requirements needed for a flood overlay for your specific council, search 'your council flood overlays' or call your council planning department.

Applies to properties near bushland or vegetation. It triggers construction standards (such as a Bushfire Attack Level or BAL rating) affecting windows, cladding, roofing materials, and water supply access. 

Protects historical buildings, traditional streetscapes, or pre-war architecture. Demolition, major facade changes, or moving an older home usually require strict council assessment. Please get into touch with your local council prior to considering relocation regarding heritage overlays as each council in QLD has specific requirements for heritage overlays and planning may be required.

Transport noise corridor requirements in Queensland apply to land located near busy state-controlled roads, local roads, or rail networks. Corridors are split into categories based on projected noise levels (Level 0-4)

Most Queensland and NSW councils provide free online mapping tools that let you:

1. Open the council's planning or ePlan mapping tool.
2. Search the property by address or lot/plan number.
3. Turn on relevant overlay layers (e.g. flood, bushfire, heritage).
4. Check whether any overlays affect the property.

These maps are a useful starting point, but they are not a substitute for council assessment. Some tools show only broad risk categories, and not all allow direct links to individual properties. If you have trouble using a mapping tool or locating a property, contact the council's planning department for assistance.

For direct links to council mapping tools, see our 'Planning Scheme Mapping Tools' blog.