From design to handover, Duplex Jimmy delivers quality duplex builds on time and on budget — with zero headaches.
We handle everything — so you don't have to juggle a dozen different trades.
Full construction from the ground up, built to your specs and council requirements.
We work with trusted architects to get your plans approved and optimised for maximum return.
We navigate DA, CDC, and construction certificates — we know what councils want.
Got an old house on a good block? We knock it down and build two modern duplexes.
Turnkey packages for investors — maximise yield, minimise effort, retain both or sell one.
Regular updates, a dedicated site manager, and one contact from start to settlement.
You don't need to already own land. We help you identify the right site, build two dwellings, and walk away with a serious asset — or two.
We work with buyers agents and can help you identify duplex-friendly blocks in growth corridors across Greater Sydney — so you're not starting from scratch alone.
One block, two dwellings. Duplex builds typically generate significantly higher rental yields than a single house on the same land — putting more money in your pocket every week.
A popular strategy: live on one side, let the rental income from the other cover a large chunk of your mortgage. It's one of the smartest ways to get into property in Sydney.
You're creating two separate titles. That means two assets, two potential sale prices, and far more flexibility than a standard house. Many clients sell one side and keep the other debt-free.
A clear, proven process — so you always know where your build is at.
Tell us about your site and goals. We assess feasibility and walk you through the numbers.
Concept plans and a detailed fixed-price quote — no fluff, no surprises.
We handle all council approvals and certifications while you relax.
Build begins with weekly updates and quality checks at every stage.
Final inspection, defect check, and keys handed over. Ready to rent or sell.
Jimmy and his team made building our first duplex incredibly stress-free. Fixed price, on time, and the finish quality was exceptional. We're already planning the next one.
As an investor I've dealt with plenty of builders. Duplex Jimmy is the only one who actually delivered on every promise. Communication was top-notch throughout.
From the DA process to handover — completely seamless. We were kept informed every week. The end result exceeded our expectations. Highly recommend!
Tell us about your project and we'll get back to you within 24 hours with a no-obligation assessment.