
Home Extensions Sydney
More space without moving — ground-floor extensions, first-floor additions and outdoor living.
Extension services
- Feasibility and planning controls check
- Design, engineering and approvals
- Ground-floor extensions
- First-floor additions
- Alfresco and outdoor living areas
- Integration of new and existing finishes
- Certification and handover
Extending can add bedrooms, living space and value without the cost of selling and buying. DVELOP manages the design, approvals and construction so your home is disrupted for as short a time as possible.
Approvals for extensions
Many extensions can be approved as complying development if they meet the standard criteria; others need a DA. Setbacks, heights, heritage and bushfire or flood overlays all affect the pathway — we check these first.
Home Extensions FAQs
Do I need home building compensation insurance?
In NSW, residential building work over $20,000 requires home building compensation (HBC) cover to be in place before work starts or a deposit is taken. It protects the owner if the builder can’t complete or fix defects due to insolvency, death or disappearance.
Will I get a written contract?
Yes. Every DVELOP project is documented with a written contract setting out scope, price, inclusions and program. In NSW, residential building work over $5,000 requires a full written contract, and smaller jobs over $1,000 still need a written small-jobs contract.
Can we live at home during an extension?
Often yes for ground-floor work; first-floor additions usually require moving out for part of the build. We’ll advise when we scope.
Financing, selling or leasing as well?
Our sister businesses arrange the finance and handle sales and leasing — so your project stays with one team.

Talk to us about home extensions.
Talk to the people who will actually build it. We'll walk the site, test the numbers and give you a straight answer.