Dual occupancy rules in Moreton Bay
Building a dual occupancy in Moreton Bay? City of Moreton Bay applies the Queensland planning framework. Here's what that means locally — plus the overlays worth checking on your specific block.
Set entirely by your council planning scheme and zone
It depends on your council. Queensland has no statewide dual occupancy rule - each local government planning scheme decides which zones allow a duplex, what minimum lot size and frontage apply, and whether it is accepted, code assessable or impact assessable development.
Key rules at a glance
| Minimum lot size | Set by your planning scheme. Commonly 400-800 m² (indicative - varies by council and zone). Rockhampton cut its minimum for dual occupancy in the low-medium density residential zone from 600 m² to 400 m² on 28 March 2025. Brisbane has a comparable 400 m² change in a proposed amendment that is not yet in effect - the current City Plan sets the assessment level by zone and building height rather than by a minimum lot size. |
| Minimum frontage | Commonly 12-20 m (indicative - varies by scheme). Some schemes only treat a dual occupancy as accepted development at 20 m frontage or more. |
| Zones permitted | Typically the low-medium density residential and medium density residential zones, and in some schemes the character residential zone. Low density residential zones sometimes allow it, usually at a higher minimum lot size. |
| Approval pathway | Accepted, code assessable or impact assessable, depending on the scheme, the zone and whether the acceptable outcomes are met. |
| Can it be subdivided or strata titled? | Usually yes, through a separate reconfiguring a lot application for Torrens titles, or a community titles scheme for strata-style lots. Each resulting lot must meet the scheme's minimum lot size for subdivision, which is often larger than the minimum for building the duplex. |
| Typical timeframe | Around 2-4 months for a code assessable application; longer where it is impact assessable and publicly notified. |
Heritage, flood and bushfire controls on your specific lot can remove the fast-track and require a full application — even when the general rules say you're fine.
How often this applies in Moreton Bay
These are the overlays that can remove the fast-track, measured across every parcel in Moreton Bay from the same data behind our zoning map. They describe the council, not your block, and they are counted separately — one parcel can carry more than one, so they cannot be added together.
| Overlay | Share of parcels | What that means here |
|---|---|---|
| Heritage | 0.06% | 104 parcels flagged. The rest are mapped and sit outside it. |
| Flood | 0.32% | 577 parcels flagged. 99.68% of the council carries no flood mapping at all — unassessed, not cleared. |
| Bushfire | 21.5% | 38,719 parcels flagged. The rest are mapped and sit outside it. |
The most common zone in Moreton Bay is General residential, covering 69.2% of its 180,123 parcels. What you can build is decided by your own lot's zone, not the council's most common one.
Measured from our mapped parcel data, snapshot taken 2026-08-11. Overlays are checked live for a specific address on the address tool.
Dual occupancys in Moreton Bay
City of Moreton Bay is the authority for Moreton Bay in Greater Brisbane. The statewide Queensland rules above set the baseline; the council can apply extra local controls, and heritage, flood or bushfire overlays on your lot can change what's allowed.
Visit City of Moreton Bay ↗ Full Queensland rules →
See the Moreton Bay zoning map → — every parcel in Moreton Bay by zone, lot size and mapped constraints.
Frequently asked questions
Do I need council approval for a dual occupancy in Moreton Bay?
Usually yes. In Queensland, a dual occupancy generally needs an application, and City of Moreton Bay is the authority that assesses it. See the full state rules for the pathway and what's required.
Which council approves a dual occupancy in Moreton Bay?
City of Moreton Bay is the consent authority for Moreton Bay (Greater Brisbane). You can review local planning controls on the council website and lodge through your state planning portal.
What size block do I need for a duplex in Queensland?
It depends on your council. Rockhampton has allowed dual occupancy from 400 m² in its low-medium density residential zone since 28 March 2025, while other schemes require 600 m², 800 m² or more, and some only treat a duplex as accepted development at 800 m² with a 20 m frontage. Brisbane sets no minimum lot size at all - it decides the assessment level by zone and building height, and a proposed amendment introducing a 400 m² minimum has not yet taken effect. There is no statewide figure, so check the minimum lot size in your council's planning scheme for your zone.
Sources
- Dual occupancy - planning and building requirements, Brisbane City Council ↗
- Local planning schemes - Planning Queensland ↗
- Development assessment - Planning Queensland ↗
- Planning Scheme Amendment Package C - Residential (dual occupancy 600 m2 to 400 m2), Rockhampton Regional Council ↗
Related building rules
General guidance only — not professional planning advice. Local requirements in Moreton Bay can differ from the statewide summary and change over time; always confirm with City of Moreton Bay before starting work. Last reviewed: July 2026.
Talk to a town planner in Moreton Bay
This page covers the general rules. A qualified town planner can tell you what applies to your actual block — the zone, the overlays and the approval path — before you spend money on drawings.
- Qualified, practising town planners
- Advice on your property, not a generic rule
- No cost, no obligation