Granny flats in Townsville — do you need approval?

Zone by zone

Dwelling house (a secondary dwelling is part of a dwelling house — Planning Regulation 2017, Schedule 24). Residential zones first.

Overlays that change the answer

• Flood hazard overlay (high and medium hazard areas). A dwelling house (including a granny flat) or dual occupancy becomes accepted subject to requirements under the Flood hazard overlay code, and code assessable if those requirements can't be met. (Table 5.9.1 Flood hazard overlay (high and medium hazard areas))
• Coastal environment overlay. A dwelling house (including a granny flat), and building work lowering floor levels or enclosing the ground floor of an existing house, become accepted subject to requirements under the Coastal environment overlay code. (Table 5.9.1 Coastal environment overlay)
• Landslide hazard overlay (high and potential debris flow hazard areas or slope over 23 degrees). A dwelling house (including a granny flat) or dual occupancy becomes code assessable against the Landslide hazard overlay code. (Table 5.9.1 Landslide hazard overlay)
• Water resource catchment overlay. A dwelling house (including a granny flat) becomes accepted subject to requirements under the Water resource catchment overlay code. (Table 5.9.1 Water resource catchment overlay)
• Airport environs overlay (above the 20 ANEF contour). A dwelling house (including a granny flat) or dual occupancy above the 20 ANEF contour becomes accepted subject to requirements under the Airport environs overlay code. (Table 5.9.1 Airport environs overlay)
• Major infrastructure and hazardous facilities overlay — high pressure gas pipeline buffer (100 m). A dwelling house becomes impact assessable unless in the Low density or Character residential zone; any other change of use becomes impact assessable. (Table 5.9.1 Major infrastructure and hazardous facilities overlay)
• Major infrastructure and hazardous facilities overlay — electricity transmission line easement. A dwelling house becomes impact assessable unless in the Low density or Character residential zone; a dual occupancy, and any change of use within the mapped buffer (OM-08.3), becomes code assessable. (Table 5.9.1 Major infrastructure and hazardous facilities overlay)
• Major infrastructure and hazardous facilities overlay — water supply pipeline buffer. A dwelling house becomes code assessable unless in the Low density or Character residential zone; a dual occupancy, and any change of use within the mapped buffer, becomes code assessable. (Table 5.9.1 Major infrastructure and hazardous facilities overlay)
• Major infrastructure and hazardous facilities overlay — water treatment and wastewater treatment facility buffers. A dwelling house becomes impact assessable unless in the Low density or Character residential zone; a dual occupancy becomes impact assessable; any other change of use within the mapped buffer becomes code assessable. (Table 5.9.1 Major infrastructure and hazardous facilities overlay)
• Major infrastructure and hazardous facilities overlay — waste management facility buffer. A dwelling house becomes code assessable unless in the Low density or Character residential zone; a dual occupancy, and any change of use within the mapped buffer, becomes code assessable. (Table 5.9.1 Major infrastructure and hazardous facilities overlay)
• Major infrastructure and hazardous facilities overlay — stock route network. A dwelling house becomes code assessable unless in the Low density or Character residential zone; any other change of use, reconfiguring a lot and operational work become code assessable. (Table 5.9.1 Major infrastructure and hazardous facilities overlay)
• Major infrastructure and hazardous facilities overlay — shooting range impact area buffers. A dwelling house becomes code assessable unless in the Low density or Character residential zone; any change of use within the mapped shooting range impact area becomes code assessable. (Table 5.9.1 Major infrastructure and hazardous facilities overlay)
• Major infrastructure and hazardous facilities overlay — hazardous chemical facility buffer. A dwelling house becomes impact assessable unless in the Low density or Character residential zone; a dual occupancy, multiple dwelling, office, shopping centre or home based child care becomes impact assessable. (Table 5.9.1 Major infrastructure and hazardous facilities overlay)

Worth knowing in Townsville

Townsville City Plan (Version 2025/01), Part 5, converted from the council's Part 5 PDF (not an official copy). A material change of use not listed in a zone table, or not meeting the listed description, is impact assessable; reconfiguring a lot is code assessable unless Table 5.6.1 says otherwise; building work and operational work are accepted unless Tables 5.7 / 5.8 or an overlay say otherwise (section 5.3.2). Accepted development subject to requirements that doesn't meet its requirements becomes code assessable (section 5.3.3(2)). Townsville regulates building work in Table 5.7.1 only in the Character residential zone (contributing character buildings and work near the street façade — see SC6.2); elsewhere building work is regulated only through overlays (heritage, flood, coastal). A building approval under the Building Act is always still needed. Granny flats: only the Low density and Rural residential zones split out a 'secondary dwelling' (accepted subject to requirements); the Rural and Emerging community zones cap a lot at two dwellings. Dual occupancy is accepted in the Low (outside the Stables precinct), Medium and High density and Character residential zones. Schedule 6 of the Planning Regulation 2017 overrides the scheme — e.g. a dwelling house in a residential zone (other than Medium or High density) can't be made assessable unless a relevant overlay applies; the Major infrastructure and hazardous facilities overlay isn't a relevant overlay, so its dwelling-house triggers don't apply in the Low density or Character residential zones. Many centre, mixed use and medium density rows vary by precinct (e.g. Table 5.5.3 storey limits of 2–8 storeys by precinct for multiple dwellings in the Medium density residential zone; Breakwater, Thuringowa centre support, Civic and administration, James Cook University–Townsville University Hospital precincts) — check the conditions. Local plans are not used in this scheme. The Special purpose zone covers the Townsville State Development Area, where change of use, subdivision and vegetation clearing are decided by the Coordinator-General. Operational work filling or excavation within 1.5 m of a boundary deeper than 300 mm, deeper than 1 m, or 100 m³ or more is code assessable in every zone (10 m³ in the high/medium flood hazard area). Where premises are in more than one zone or overlay, the highest category applies to the affected part. The Transport noise corridor overlay is for information only. The source Part 5 extract was a PDF conversion: Table 5.5.12 (Specialised centre) splits across chunks and the Table 5.8.2 advertising-device extract is incomplete.

What else you'll need

• Building approval
• Plumbing approval

More about Townsville

• What can you build in Townsville? Council overview and development applications
• Every Queensland zone explained, with what each council allows and the planning overlays that change the answer
• What Townsville City Council charges for a development application, compared with other councils
• A Landbrief site report for your Townsville address — every planning layer that applies to the lot

Other projects in Townsville

Dual occupancySubdivideShed or carportExtensionPoolFence or wallHome businessTownhousesShop, café or officeClear treesDemolish

The statewide position on this project: Granny flat in Queensland.