Two homes on one block, designed in-house around your land, your council and your plans.
A custom duplex is one of the smartest ways to get more from your Sydney block. You can live in one home and rent the other, sell both, or keep the family close under one roof. As custom duplex builders in Sydney, Clover Homes designs and builds every duplex in-house, so your design is shaped by the people who will build it.
We handle the whole journey from our Concord head office: site feasibility, custom duplex designs, CDC or DA approvals and construction. You’ll get weekly updates the entire way, and a home that’s fully connected at handover. We build it like it’s ours.
Why Choose Clover Homes as Your Custom Duplex Builder
- My block is too small. Frontage and lot size requirements vary by council, and some blocks that look tight on paper still qualify once you factor in configuration. A quick check tells you where you actually stand instead of guessing.
- A duplex means giving up privacy. Poor design causes that, not the duplex itself. Window placement, fencing and separate access solve most privacy concerns before construction even starts.
- Both sides have to look identical. They don't. Sizing, finishes and layout can differ side to side depending on whether you're living in one, renting it out or selling both.
- Neighbours objecting will kill the application. Objections happen often and rarely stop an approval on their own, provided the design already meets council controls around setbacks and overshadowing.
Choosing a builder? Read our guide on how to check a duplex builder’s licence in Sydney, or verify any NSW builder on the NSW Government licence check.
Signs a Duplex Might Be Worth Exploring for You
- You’ve outgrown your current home but don’t want to leave the block or the area
- You’re sitting on land that’s doing nothing for you financially
- You want to house a family member close by without sharing one roof
- You’re planning ahead for retirement income or a future sale
- You’ve been told your block “might” work but nobody’s actually checked
If two or more of these sound familiar, it’s worth finding out what your block can actually support before ruling anything out.
How We Design Around What You Actually Want
Some clients want to live in one half and rent or sell the other. Others are building purely for return and want a layout that leases or sells fast. We ask which one you’re doing before we draw anything, because a duplex designed for a lifetime resident looks different to one designed for two future buyers. Council requirements, private open space and streetscape presentation get worked into the design either way, so nothing gets redrawn after lodgement.
We’ve built single storey duplexes on tight inner blocks and double storey corner block projects across the North Shore and the Hills District, each one shaped around the site it sits on.
Custom Duplex Designs for Every Sydney Block
Start from one of our proven duplex designs and customise it, or design your duplex from a blank page. Browse all duplex home designs.
Single Storey Duplexes
Everything on one level, ideal for downsizers, multigenerational families and buyers who want easy living. See our single storey duplex designs.
Double Storey Duplexes
The most popular choice for Sydney blocks: more floor space, separate living and sleeping zones, and strong resale value. Explore designs such as the Wyndham, Waverton, Sorrento and Carlton on our double storey duplex.
Corner Block Duplexes
Two street frontages mean separate driveways and addresses, more natural light and extra street appeal. We design corner duplexes that look like two unique homes, not mirror images. Learn more about corner block duplexes.
Narrow Block Duplexes
Smart layouts, light wells and stacked living zones that make every metre count on narrower Sydney lots. See our narrow block designs.
Construction
Authority lodgement & Approval
Selections
From our head office in Concord, we build custom duplexes across Greater Sydney, including:
Custom Duplex Builder FAQs
What is a custom duplex?
A custom duplex is two homes on one block, designed from scratch or adapted from an existing design to suit your land, budget and goals. Unlike a standard project duplex, the layout, facade and finishes are chosen by you.
Can I build a duplex on my block in Sydney?
In many cases, yes. Since July 2024, dual occupancies have been permitted in R2 low density zones across NSW. In low and mid-rise housing areas, the minimum is a 450 square metre lot with a 12 metre frontage. Outside those areas, your council’s local controls apply, so we check your block before any design work begins.
How long does duplex approval take?
A CDC under the Low-Rise Housing Diversity Code can be issued within 20 days if your design meets every standard. A DA goes through your local council and usually takes longer, depending on the council and the complexity of your design.
How much does it cost to build a custom duplex in Sydney?
Cost depends on your block, the size and number of storeys, your finishes and site costs such as demolition. Our dual occupancy cost guide explains what drives the price, and we give you a detailed quote after assessing your site.
Is building a duplex a good investment?
A duplex can let you live in one home and rent the other, sell both, or subdivide where rules allow. Read our guide: is building a duplex a good investment?
Do you design the duplex in-house?
Yes. Our in-house design team creates your custom duplex design and works directly with our builders, so you don’t need a separate architect.
Do I need to subdivide before or after the build?
After. Subdivision typically happens once construction is complete and the duplex has passed final inspection, and we’ll guide the sequencing so financing and titles line up properly.
Can I use a different builder for the second dwelling if I'm planning to sell it?
No, one builder delivers both dwellings under a single contract for warranty and consistency reasons, though the finishes on each side can still differ.
What if the design gets objected to during the DA process?
We design with overshadowing and streetscape controls in mind from the start specifically to reduce that risk, and an objection alone doesn’t automatically stop an approval.
How much say do I get over which finishes go in each half?
As much as you want. If one side is for you and one is for a tenant or buyer, we can adjust the inclusions on each side to match how it’ll actually be used.
Is a duplex still worth it if I only plan to live in it, not rent or sell?
Yes, plenty of our clients build a duplex purely to house family close by or to make better use of a block they’re not ready to leave. Return isn’t the only reason to build one.
Start Your Custom Duplex with Clover Homes
Whether you have a block ready to go or you’re still weighing up your options, our team can tell you what your land can support. Visit our Design HQ at 26 Cabarita Road, Concord NSW 2137, or email sales@cloverhomes.com.au to talk through your custom duplex with our designers. You can also see our completed projects for inspiration.
