
One block. Two homes.
One title.
A dual key home puts two self-contained residences inside one building, on one block, under one land title. Two front doors, two kitchens, one build.
- 2 residences
- 1 land title
- 2 kitchens
- 2 private entries
Is a dual key right for your situation?
Tell us what you are trying to achieve and where you are up to. We will tell you whether a dual key stacks up for you, what it needs from a block, and what the real numbers look like on the designs that fit. At no cost to you.
- A real person, not an automated quote
- We reply the same business day
- We will tell you if a dual key is the wrong move
- No obligation, and no fee to you
A consultant, the same business day. No sales script.
Your goal, your borrowing position, and whether a dual key is the right structure at all.
The designs that suit, what they need from a block, and the costs and returns for your situation.
Looks like one property. Works like two.
One building on one block. Inside it, two homes that never have to meet.
So how does a dual key actually work?
A dual key home is designed from the ground up as two self-contained residences inside one building. Each has its own entry, its own kitchen, its own living space, its own bathroom and its own laundry. Neither has to walk through the other to get anywhere.
You are not subdividing, you are not buying two blocks, and you are not running two builds. It stays one property on one land title, built under one contract, on one construction programme.
- One land title, not two
- One builder, one contract, one programme
- Two residences that work independently from day one
Same block. Two different propositions.
The land does not change. What changes is how much the building on it can do.
| Feature | Standard home | Dual key home |
|---|---|---|
| Land titles | One | One |
| Dwellings on the block | One | Two |
| Separate entries | No | Yes |
| Separate kitchens | No | Yes |
| Tenancies possible | One | Up to two |
| Live in one, let the other | No | Yes |
| Frontage usually needed | From about 10m | From about 15m |
A dual key is not a subdivision
You are not creating two titles or two blocks. It stays one property, and it is bought, financed and rated as one.
If separate titles are what you are actually after, that is a different conversation, and we will have it with you rather than sell you this one.
Two homes. Without buying two blocks.
The Cornerstone is the clearest version of the idea on our range: independent front and rear residences, each with its own front door.

- Bedrooms5 across both residences
- Bathrooms3
- Car spaces2
- FrontageFrom 15m
What each residence has of its own
- Its own front entry, off the street
- Its own kitchen
- Its own living space
- Its own bathroom and laundry
Which residence is bigger, and how the bedrooms split between them, changes from design to design. The full plan for this one is on its own page.
One idea. Four ways to build it.
Every one of these is on our design range with a full floor plan. Which one suits comes down to the block, the budget and what you are trying to achieve, which is the conversation rather than the catalogue.

The Cornerstone
- 5 bed
- 3 bath
- 2 car
- 15m frontage
Independent front and rear residences, each with its own entry. The clearest expression of the idea on a 15m block.

The Dual Income
- 6 bed
- 3 bath
- 2 car
- 15m frontage
Six bedrooms across both dwellings. The second has its own entry, kitchen, lounge, semi-ensuite and laundry.

The Legacy
- 6 bed
- 3 bath
- 2 car
- 15m frontage
Built for family that stays close without living on top of each other. Three bathrooms and a private WC.

The Duplex
- 4 bed
- 3 bath
- 3 car
- 15m frontage
The compact one. Four bedrooms, three bathrooms and a three car carport on a single lot.
Elevation images are design renders supplied by the builder. They are not photographs of completed House & Land Co projects. Final design, inclusions, frontage requirements and pricing depend on the block, the builder, the estate and your own selections.
One idea. Different life plans.
A dual key suits a few very different people for very different reasons. It also does not suit everyone, and we would rather say so than sell you one.

The investor
Two rental incomes from one block, on one title.

Live in one, let the other
Your tenant helps carry the mortgage, through a wall you own.

Family, close but separate
Parents or adult kids next door, with their own front door.

The long game
Let both now. Move family in later, without buying again.
But it is not for everyone
A dual key needs a wider block than a standard home, usually from about 15m of frontage, and not every estate or zoning will take one.
Lenders assess them differently to a standard build, and so do some property managers. A smaller buyer pool matters too if you might sell inside a few years. Whether it stacks up depends on your borrowing position and what you are actually trying to achieve.
That is why we start with your situation rather than a floor plan, and why we will tell you when the answer is no.
Not sure which of those you are?
Most people are not, at this point. That is the conversation.
You are not buying from a builder.
You are working with an independent advisor.
Builders sell their own homes, and the salesperson in the display village works for the builder. We are a building advisory. We compare across a panel, check whether a dual key suits your block and your borrowing position before anyone talks price, and coordinate land, finance and the build as one job.
You pay us nothing, at any stage. We are paid a commission by the builder you choose, from their side, and it is not added to your contract. Ask us how it works for you.
- Builder neutral, so the advice is yours
- Finance checked first, so the budget is real
- One team across land, finance and the build
“The right team to talk to. We received a genuine and better offer to assist our situation, with more than what we expected to get.”

From idea to keys
The order matters. We check the money and the block before anyone shows you a floor plan.
Tell us your situation
Your goal, your borrowing position, and whether you already have a block.
We check it stacks up
Whether a dual key suits what you are after, and what it needs from a block.
Land
We find a block that can take one, in an estate and a zoning that allows it.
Design and builder
We match the design to the goal and compare across the panel on real pricing.
Build
One contract, one programme. We coordinate it and keep you updated.
Move in, or let it
Live in one and let the other, let both, or move family in.
The questions we get most
What is a dual key home?
One building on one block, designed as two self-contained residences. Each has its own front entry, kitchen, living space, bathroom and laundry, so neither has to walk through the other. It is bought and held as a single property on a single land title.
Is a dual key the same as a duplex or a subdivision?
No. A subdivision splits the land into separate titles, and a duplex is usually two dwellings that can end up on separate titles. A dual key stays one title and one property throughout. That is the point of it: you get two residences without the cost, the approvals and the timeline of splitting the land.
What size block do I need?
Usually from about 15m of frontage. Every dual key design on our range is drawn for a 15m block, which is wider than a standard house and land package needs. Zoning and the estate’s own design guidelines matter too, and some estates will not allow one at all. Checking that before anything else is the first thing we do.
Can I live in one side and rent out the other?
Yes, and it is one of the more common reasons people look at this. It is also worth thinking through properly, because living next door to a tenant suits some people and not others, and the way you use it can affect how it is treated for tax. We would talk that through with you, and we would say so if we thought it was a poor fit.
How do lenders look at a dual key?
Differently to a standard build, and not every lender treats them the same way. Some are comfortable with them, some are not, and how any rental income is assessed varies. That is exactly why we check borrowing capacity with a broker before we go looking at land or designs, rather than after. We are not licensed to give you credit advice, and we will not pretend otherwise.
Is a dual key harder to sell later?
It is a smaller buyer pool than a standard family home, and an honest answer has to start there. What it has going for it is that it appeals to investors and to families who need two households under one roof, and that it is one title so it sells as one straightforward transaction. Whether that trade suits you depends on how long you intend to hold it.
Do you charge me a fee?
No. Our advice is free to you. We are paid a commission by the builder you ultimately choose, from our panel of builder partners, and it is not added to your contract. That is how the model works, and it is why we can tell you a dual key is the wrong move without it costing us anything. The full explanation is here.

See whether a dual key suits your situation
Tell us what you are trying to achieve and where you are up to. A consultant calls you back the same business day with a straight answer on whether a dual key stacks up for you, which designs fit, and what they need from a block. If it does not stack up, we will tell you that too.
- The floor plans for all four dual key designs
- What each one needs from a block
- Whether a dual key fits your borrowing position
- The real numbers for your situation, not a range off a website
- An honest answer if it does not stack up
- No obligation
- Independent advice
- No fee to you
- Takes under a minute
- A consultant calls you back today
See if a dual key suits you
Tell us what you are trying to achieve. We will come back the same business day on whether a dual key stacks up for your situation, and which designs fit.
- No obligation
- No fee to you
- A real person replies