Torrens Title vs Strata: Which Is Better for a Duplex?
Most people commissioning a duplex don't think about how it'll be titled until the architect or the builder brings it up. By then it's almost too late to change course without redrawing the plans.
The choice between Torrens title and strata title is one of the earliest decisions on a duplex project, and it shapes how each dwelling sells, how each dwelling is mortgaged, what happens if a future owner wants to renovate, and how the two dwellings relate to each other for the next fifty years. Across the Illawarra, most new duplex builds in Wollongong, Shellharbour, and the South Coast go down the Torrens title path. There are good reasons for that, and there are still situations where strata is the right call.
What Torrens Title and Strata Title Actually Mean
Torrens title means each dwelling sits on its own separate parcel of land, with its own title document, its own boundaries, and its own council rates. The two dwellings happen to be attached, but legally they're two completely independent properties. You can sell one without involving the other, mortgage one without involving the other, and the future owners of each dwelling have no shared ownership of anything.
Strata title means the two dwellings share the land underneath them. Each owner holds title to their own dwelling, plus a share of the common property, which is typically the land, the driveway, the external walls, and sometimes the roof. The two owners form a strata scheme and have to agree on shared matters like building insurance, common-area maintenance, and any future structural work. It's the same legal framework that runs apartment buildings, scaled down to two l
Why Most Illawarra Duplex Builds Go Torrens
The single biggest reason is resale value. A Torrens title dwelling sells the same way any standalone home in Wollongong, Bulli, or Shellharbour sells. The buyer gets a standard contract, a standard mortgage, and a property they fully control.
A strata title duplex sells with strata documents, a strata management arrangement, and the perception, fair or not, that the buyer is sharing ownership with the neighbour. Local agents in the Illawarra will generally tell you Torrens title duplexes attract a wider buyer pool and a cleaner sale.
The second reason is mortgage finance. Most major lenders treat Torrens title duplex dwellings the same as standalone homes. Strata title duplexes sometimes attract slightly tighter lending criteria, particularly on small two-lot strata schemes, which can narrow the buyer pool further.
The third reason is independence. With Torrens title, the future owner of each dwelling can extend the back, repaint the front, or knock down a wall without needing the neighbour's permission, provided they stay within council planning rules. With strata, anything that affects common property needs strata approval. For owner-occupier duplexes in particular, where one half will be lived in by the family long-term and the other half will be sold off, Torrens removes a layer of friction the family doesn't
When Strata Title Still Makes Sense
Strata isn't dead, and there are sites where it's genuinely the better call. The most common is when the block can't be physically subdivided into two compliant Torrens lots. Each Torrens lot needs to meet minimum lot size and frontage rules under the relevant council planning controls, and not every duplex block makes those numbers. If the block is right at the threshold, strata is sometimes the only legal way to title the two dwellings separately.
Strata can also be the right call on smaller blocks where the dwellings share more than just a wall. Common driveways, shared front fences, shared services that physically can't be separated cleanly, and shared outdoor areas all favour strata, because strata is designed to handle shared infrastructure. Trying to force Torrens onto a site that genuinely shares infrastructure creates legal headaches that strata avoids.
And in some investor-only duplex builds, where both dwellings are going to be held and rented by the same owner long-term, strata can be slightly cheaper and faster to register. The benefit only really applies if you have no intention of ever selling one half separately.
How the Subdivision Process Works in NSW
Whichever path you choose, the subdivision needs council approval and registration with NSW Land Registry Services. For Torrens title, the process involves a registered surveyor preparing a subdivision plan, council issuing a subdivision certificate, and the plan being lodged for registration. For strata, the surveyor prepares a strata plan instead, which divides the building into lots and common property, and the same council and registry steps follow.
Timing matters. The subdivision can be lodged before the build, during the build, or after handover. Most Illawarra duplex builds register the subdivision after the building is substantially complete, because the surveyor needs accurate as-built dimensions. The plan should be designed and council-approved much earlier so the build proceeds with the title pathway already loc
Why TAG Homes Asks About Title Early
TAG Homes builds duplexes across Wollongong, Shellharbour, Kiama, and the South Coast, with builds under way in Woonona and Bulli, more signed and heading to site across the region, and our own dual occupancy development in Shellharbour. The title decision comes up on every single one, usually in the first or second conversation. The build itself doesn't change dramatically between Torrens and strata, but the design, the survey work, the council documentation, and the way services are run can all be influenced by which path you're on.
TAG Homes is a construction-led builder with our drafting team. Bring your approved plans, or plans you're working on with your own architect or draftsperson, or start from a blank page through our design and construct pathway, and we'll take it from there. The subdivision itself is handled by your surveyor and your conveyancer, and we work alongside them to keep the build aligned with whichever title path the project is on.
Ready to Work Out Which Title Path Suits Your Block?
If you're planning a duplex in the Illawarra and you haven't locked in Torrens or strata yet, the title path is one of the first things worth talking through. The right answer depends on the block, the council, what you plan to do with each dwelling, and how the build will be designed. A quick phone conversation gets you a clear picture of which way most blocks like yours go and why.
Call Grant on 0423 409 212. TAG Homes Pty Ltd, NSW Builder's Licence 369859C. Winner at the 2026 Master Builders NSW Southern Regions Excellence in Building Awards, and 2024 HIA NSW Region Start-up Business winner.
Questions we hear most
Is Torrens title better than strata for a duplex in Wollongong?
For most owner-occupier and most investor duplexes in the Illawarra, Torrens title is the cleaner option. It gives each dwelling full independence, attracts a wider buyer pool, and removes the strata management overhead. Strata still makes sense on blocks that can't be physically subdivided into two compliant Torrens lots.
Can I change my duplex from strata to Torrens later?
Technically yes, but it's expensive and complex. Converting strata to Torrens requires the existing strata scheme to be wound up, the building to be reassessed for compliance with Torrens subdivision rules, and a new subdivision plan to be lodged. It's much cheaper to get the title path right at the start.
Does Torrens title increase the value of my duplex?
Generally yes, on a per-dwelling basis. Local agents in Wollongong, Bulli, Shellharbour and similar markets will usually price a Torrens title duplex dwelling closer to a standalone home of the same size and finish, while a strata duplex dwelling can sit slightly below. The difference varies by suburb and condition.
Who handles the subdivision, the builder or someone else?
A registered surveyor prepares the subdivision or strata plan, your conveyancer or solicitor handles the legal registration, and council issues the subdivision certificate. The builder coordinates with them to keep the build aligned with the title path. TAG works alongside your surveyor and conveyancer throughout the build.inner.ked in.need.ots.
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