Dual Occupancy in Wollongong: Rules, Separate Title and What Buyers Should Check

In Wollongong, the Wollongong Local Environmental Plan 2009 permits dual occupancy (two homes on one lot) with council consent in the R1, R2, and R3 residential zones. Many can later be split onto separate titles, but whether a specific property can be, and on what terms, depends on the site, the approval it was built under and what is already registered. If you are buying, the question is not "is a duplex allowed here?" but "what exactly am I buying, and what can I legally do with it?"

What counts as a dual occupancy

A dual occupancy is two dwellings on a single lot. They can be attached (side by side, sharing a wall, often called a duplex) or detached (two separate buildings, such as a front and rear house).

If you want the plain-English difference, our answer on the difference between a duplex and a dual occupancy covers it, and the dual occupancy glossary entry has the short version.

The label in a listing does not tell you the legal position. "Dual income", "duplex" and "two homes on one block" can describe a fully approved and subdivided pair, an approved dual occupancy on one title, or a house with an unapproved second dwelling out the back. Those are very different purchases.

Where dual occupancy is allowed in Wollongong

Under the Wollongong LEP 2009 land use table, dual occupancies are permitted with consent in R1 General Residential, R2 Low Density Residential and R3 Medium Density Residential. They are not listed in zones such as R4 High Density Residential, R5 Large Lot Residential, the rural zones or C4 Environmental Living, so they are not permitted there under the LEP.

Our guide to zoning in Wollongong explains what each residential zone is for.

Permitted with consent does not mean every lot qualifies. Council still considers lot size, width, floor space ratio, height, landscaping, parking, and the controls in the Wollongong Development Control Plan 2009 (Chapter B1, Residential Development).

For example, a recent council assessment of an R2 dual occupancy in Fairy Meadow applied a mapped minimum lot size of 449 square metres, a maximum floor space ratio of 0.5:1, a 9 metre height limit, and a DCP minimum site width of 15 metres. Those figures came from that site's maps. Yours may differ, so check the Lot Size, Floor Space Ratio and Height of Buildings maps for the actual address.

How the NSW low and mid-rise housing rules change things

The NSW Government's low and mid-rise housing policy has made dual occupancies permissible in the R2 zone across NSW since 1 July 2024. Stage 2, which began on 28 February 2025, added standards for areas within 800 metres walking distance of nominated town centres and train stations, and the Illawarra-Shoalhaven is one of the regions covered.

In those areas, NSW Planning's summary lists these standards for dual occupancies:

• Minimum lot size of 450 square metres

• Minimum lot width of 12 metres

• Maximum floor space ratio of 0.65:1

• Maximum height of 9.5 metres

• One parking space per dwelling

• Subdivision in R1, R2 and R3 zones down to 225 square metres and 6 metres width per lot

Where a proposal meets one of these non-discretionary standards, council cannot refuse it on that ground. Land with high flood or bushfire risk, and land containing a heritage item, are excluded. The NSW Government's map is indicative only and doesn't account for individual property constraints, so a lot that looks covered may not be.

Can you get a separate title?

This is the part most buyers are really asking about. There are two common ways to put each dwelling on its own title:

• Torrens title subdivision: each home sits on its own lot with its own land. Generally, there is no strata scheme and no shared levies, although there may be easements or a shared driveway.

• Strata subdivision: each home is a lot in a small strata scheme, with common property and an owners corporation, even if it only has two owners.

In Wollongong, clause 4.1(4C) of the LEP says the minimum lot size clause does not apply to subdividing residential land that already has a dual occupancy. In practice, that is why many approved dual occupancies here can be split onto two Torrens titles on lots smaller than the mapped minimum. Subdivision still needs its own approval, and the Fairy Meadow report notes that a subdivision certificate is not issued until an occupation certificate has been issued for the building.

So when a listing says "separate titles possible", ask whether that means titles already exist, an approval is in place, or it is someone's opinion. Only the first gives you certainty on exchange day.

The Illawarra angle

Two local factors catch buyers out. First, much Northern Illawarra land sits under the escarpment or near creeks, and hazard-affected land is excluded from the state's low- and mid-rise standards. A block in Thirroul or Bulli can look like a textbook R2 duplex site and still face flood or bushfire constraints that shape what council will approve.

Second, the older housing stock means plenty of "two dwelling" properties were built or converted decades ago. Some have full approvals. Some have a granny flat that was never signed off. The price should reflect what you are actually getting, and a buyer's agent can help you confirm that before you commit.

What to check before you buy

• Order or read the Section 10.7 planning certificate in the contract: confirm the zone, any flood or bushfire notations and the other planning controls it lists.

• Ask for the development consent and the occupation certificate for both dwellings. No occupation certificate is a red flag.

• Check the title search: is it one lot, two Torrens lots or a strata plan?

• If you are relying on future subdivision, ask council or a town planner whether it needs development consent or can proceed as complying development, and what conditions apply.

• For strata, review the strata plan, by-laws and any building or sinking fund arrangement, even for a two-lot scheme.

• Review shared services: driveways, sewer lines, stormwater, and easements.

• Ask your lender how they will value and lend on the property, as one title with two homes can be treated differently from two separate lots.

• Get your solicitor or conveyancer to review the contract before you exchange or bid.

Buyer takeaway

A dual occupancy can be a sensible buy in Wollongong, as a home with income, a multigenerational setup or a long-term hold. But you are paying for the approvals and titles as much as the buildings. Price the property on what exists and is approved today, not on what a future subdivision might deliver, and treat anything unapproved as a cost rather than a feature.

Frequently asked questions

Can I build a dual occupancy on any R2 block in Wollongong?

No. Dual occupancies are permitted with consent in R2, but the lot still has to meet lot size, width, floor space and other controls, and hazard or heritage constraints can rule a site out. Check the maps for the address and the Section 10.7 certificate, or ask council.

Does a dual occupancy automatically come with two titles?

No. Many sit on a single title. Separate titles only exist once a subdivision has been approved and registered. Check the title search.

Is Torrens or strata better for a duplex?

It depends on the site and your plans. Torrens title usually means no owners corporation and simpler ongoing costs, while strata can suit sites with shared areas. Talk to your solicitor about the specific property.

What is a Section 10.7 certificate?

It is a planning certificate issued by council that sets out the zoning and key planning controls and constraints affecting a property. In NSW, it is attached to the contract for sale, and it is the first document to read on any dual occupancy.

If you are weighing up a dual occupancy in the Northern Illawarra and want a second set of eyes on the approvals and the price, book a free 15-minute call with Joel.

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This article is general information only and is not legal, planning or financial advice. Planning rules change and vary by site, so confirm the position for any property with council, a town planner or your solicitor.