Dual occupancy minimum lot size council by council
Dual occupancy minimum lot size NSW, council by council
There is no state-wide minimum lot size for a dual occupancy in NSW. Every council sets its own, some set a different figure for attached and detached, and many add a minimum street frontage in the development control plan that fails sites the area test would have passed.
This page collects those figures for Greater Sydney councils, with the date each one was checked and a link to the source. It is a starting point for a feasibility, not planning advice — controls change, and the council LEP is always the authority.
Area is not the only test
Three controls decide whether a duplex fits, and they are usually in three different documents.
- Minimum lot size — in the LEP, sometimes on the Lot Size Map, sometimes as a specific dual occupancy clause with a different figure.
- Minimum street frontage — usually the DCP. A 600 m² block with 12 metres of frontage can fail a 15 metre rule while clearing the area test comfortably.
- Whether the result can be subdivided — some councils permit the dual occupancy but not the Torrens subdivision of it, which changes the exit and the finance.
A table of areas alone gives you one of three answers. That is why the columns below include frontage and subdivision.
Dual occupancy minimum lot size NSW
Greater Sydney councils
[TABLE — columns: Council · Minimum lot size · Minimum frontage · Subdivision permitted · LEP clause · Checked]
Figures are read from each council’s LEP and DCP on the date shown. Where a council sets different minimums for attached and detached dual occupancy, both are listed. Where a control is not specified in the instrument, the cell reads “not specified” rather than being left blank.
How to confirm it for your address
Search the address on the NSW Planning Portal Spatial Viewer and read the Land Zoning and Lot Size layers. Then open the council LEP on NSW legislation and find the dual occupancy clause, and the DCP for the frontage rule. Where the LEP and this table disagree, the LEP is right and we want to know — there is a correction link at the foot of the page.
Filtering for it instead of checking one at a time
The reason this table exists is that the alternative is opening six documents per address. SiteFinder applies the lot size and zoning test across every parcel in the area you are searching, so the addresses that reach your shortlist have already passed the arithmetic. The frontage and subdivision questions are still yours to check — about a handful of sites rather than a hundred. it helps to povide Dual occupancy minimum lot size NSW.
Dual occupancy minimum lot size NSW
FAQ
1. What is the minimum land size for a duplex in NSW?
It is set by each council, not by the state, and in Greater Sydney commonly falls between about 450 m² and 800 m². Check the specific council LEP — several also apply a minimum street frontage.
2. Do I need a minimum frontage for a dual occupancy?
Most Sydney councils apply one, usually in the DCP rather than the LEP. It is a common reason a block that meets the area minimum still cannot take a duplex.
3. Can I subdivide a Dual occupancy minimum lot size NSW?
Sometimes. Some councils permit the dual occupancy and also its Torrens subdivision, some permit the build but not the subdivision. Confirm before you model the exit.
4. Is a duplex the same as a dual occupancy?
Duplex is the common term; dual occupancy is the planning term used in the LEP, and it covers both attached and detached forms.