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Duplex Builders in South West Sydney

Two homes on one block need careful planning so each feels like a home in its own right. We talk through the site, who each home is for and what matters most on each side.

Two two-storey homes side by side in cream brick with rendered upper levels, timber screening and separate garages

Two homes, one block

What to think about with a duplex

Privacy between the two homes
Where windows face, how the shared wall is treated and how each backyard is screened all affect how private each home feels.
Separate entrances
Each home usually needs its own clear front door, letterbox and path from the street, so neither feels like the back of the other.
Layout priorities
Bedroom numbers, living areas and garaging for each side. The two homes can mirror each other or be planned differently.
Who each home is for
One for you and one for family, both for family, or another arrangement. Who will live there shapes how each side should work.

Every block is different

Whether a duplex suits your site depends on the block itself and the planning rules that apply to it. We cannot confirm approval or subdivision in advance, but we can look at your block with you and talk through what you are hoping to build.

Before you get in touch

These details help us understand your site and goals in the first conversation.

  1. Block address

    The street and suburb, plus the block width and any survey you have.

  2. Your plans for each home

    Who will live in each side, and roughly how many bedrooms and bathrooms each needs.

  3. Existing house

    Whether there is a house on the block now, and photos of it if so.

  4. Any advice so far

    Anything you have already heard from council, a planner or a designer about the site.

Common questions

Can the two homes have different layouts?

They can. Some owners want matching homes, others want each side planned for different people. We talk through both options.

Will my block suit a duplex?

It depends on the block and the rules that apply to it. Share the address and any survey you have, and we can talk through it with you.

Do you handle subdivision?

Subdivision is a separate process with its own requirements. Ask us about your situation and we can discuss what is involved.

Let’s talk about your duplex

Tell us about the block and who each home is for. A phone call is the easiest way to start.

Tell Us About Your Project

Share a few details about what you have in mind.

Call 0415 288 474info@altechconstruction.com.au

Sharing the project address can help us understand your enquiry.

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