A dual key looks like one house from the street. Inside, it is split into two self-contained living areas, each with its own entry, kitchen and bathroom. Two tenants, two rents, one loan.
Free 10-minute call with our team. No obligation.

From the street it looks like a single house. Inside, it is split into a main residence and a supported unit, each with its own front door, kitchen and bathroom. Each side is leased separately, so one property earns two rents.

Both sides are leased separately, so the combined rent goes a long way towards the repayments on a single loan.
If one side is between tenants, the other side keeps earning, so you are not left covering the whole loan on your own.
Depreciation on a new build adds to your deductions, which helps the numbers at tax time. Add it to two rents and a dual key can be cash neutral to cash positive.
We look for areas with strong rental demand, population growth and infrastructure spending, so the property suits the families who rent there.
What they paid, what they are estimated to be worth now, and what they rent for each week.




Estimated values and rents at the time of publishing. Past results are not a guarantee of future returns.
A few of the people we have helped build a property portfolio, in their own words.
“We wish we’d done this sooner. The team at Somerstone showed us that it’s never too late to start, and now we have investments that give us both income and confidence heading into retirement.”
Pre-retirees
“Somerstone showed us that investing doesn’t have to be stressful. With the right strategy and team behind you, it’s actually simple, and the results speak for themselves.”
Young family
“As a single parent, I wanted to make sure every financial decision counted. Somerstone gave me the confidence to invest, and now I can see real results.”
Single parent, Brisbane
“I never thought investing could be this straightforward. My dual key property is already outperforming my expectations.”
Professional, Melbourne
“Somerstone showed us that investing can be simple when you have the right plan and team behind you. We feel confident and in control.”
Professional couple
One team from start to finish, so you are never left chasing builders, brokers or property managers.
Ten minutes to see whether a dual key suits your situation.
Our in-house finance team works out what you can borrow and structures it properly.
We shortlist brand-new dual keys in data-assessed growth areas that suit your numbers.
We keep the build on track and keep you updated the whole way.
Both sides leased, so the rent starts from handover. When you are ready, we help line up the next one.
No. A duplex is usually two separate homes on their own titles. A dual key is one home on one title, split into two self-contained living areas.
The other side keeps earning rent, so one vacancy doesn’t leave you covering the whole loan on your own.
No. Council rules vary, so we only source dual keys in areas where they are approved and where rental demand supports two tenancies.
Not always. Many of our clients use the equity in their home to fund the land and build. We check whether that works for you on the call.
Our own finance team structures your lending, so the property and the borrowing are planned together from day one.
Yes. It is a free 10-minute call with no obligation to go any further.