Cost to Build a Home in Sydney: 2026 Price Guide
Sydney build costs at a glance (2026)
Project type | Typical 2026 Sydney range |
Custom home (quality) | from ~$3,500/m² |
Luxury / architectural home | ~$4,500–$6,500+/m² |
Duplex (standard) | ~$900,000–$1.3M total |
Duplex (premium) | ~$1.3M–$1.8M+ total |
Knockdown rebuild (all-in) | ~$480,000–$1.1M+ |
Renovation | ~$2,000–$5,500/m² |
Extension | ~$3,000–$5,500/m² |
Ranges reflect current Sydney market data across the industry. As a luxury builder, Buildrite’s work typically sits toward the upper end — confirm specifics with a quote.
What drives the cost of a Sydney build?
- Size and layout — more floor area and complex layouts cost more.
- Finish and specification — joinery, stone, imported fittings and custom details are the biggest lever on a luxury build.
- Site conditions — slope, soil, access, and coastal or bushfire factors add cost.
- Approvals — a DA pathway costs more and takes longer than a CDC.
- Demolition — for a knockdown rebuild, typically $12,000–$30,000+, more with asbestos.
Read more by project type
For detailed breakdowns, see our guides on the cost of building a custom home, the cost of building a duplex, and the cost of a knockdown rebuild (vs renovating). Each goes deeper on inclusions, timelines and what to budget on top.
What’s not included in a build price?
Construction quotes usually cover the build itself. Budget separately for design and architect fees, council/certifier approvals, engineering and soil reports, landscaping, pools, driveways and, for a rebuild, demolition. A good builder is clear about what sits inside the contract and what to allow on top — we are, so there are no surprises.
Frequently Asked Questions
How much does it cost to build a house in Sydney in 2026?
A quality custom home typically starts from around $3,500 per square metre, with luxury and architectural builds running $4,500–$6,500+ per square metre. For a 250 m² home that’s roughly $875,000 to $1.6 million for construction, before design, approvals and site costs.
Is it cheaper to build or renovate?
It depends on the home’s condition. For older homes needing major structural work, a knockdown rebuild can offer better long-term value than an extensive renovation. For homes in good structural shape, renovating or extending is often cheaper.
How much does a duplex cost to build in Sydney?
A standard Sydney duplex typically costs $900,000–$1.3 million, with premium duplexes $1.3–$1.8 million or more, covering both dwellings. The per-dwelling cost often compares well to building a single home.
Why do quotes vary so much between builders?
Low headline prices often rely on low allowances and provisional sums that rise during the build. A transparent, fixed-scope quote is more reliable than the cheapest number. Compare like-for-like inclusions, not just the bottom line.
How do I get an accurate price for my project?
Share your plans or ideas and your site details with us. We assess the block and scope and provide a detailed, fixed-scope quote so you have a number you can rely on.