The cost per square metre to build in Sydney in 2026 ranges from $1,800 to $6,500+, depending on the project type, site conditions, materials, and scope of works. New builds sit at the lower end of that range per square metre, while high-specification renovations and heritage-constrained work push costs toward the upper end. Understanding what drives the rate is the fastest way to budget accurately and avoid surprises.
At Dura Group Building & Renovations, we’ve been helping Sydney homeowners plan and price building work for over 25 years. The most common question Mark hears at the first site meeting is: “How much per square metre?” This article breaks down the answer by project type, explains what moves costs up or down, and gives you realistic ranges to work with before you request a quote.
For a broader overview of pricing across different project types, the Building Costs in Sydney: 2026 Price Guide covers the full picture in one place.
What is the cost per square metre for a new build in Sydney?
A new home build in Sydney typically costs between $2,200 and $4,500 per square metre for a standard to mid-range specification. Custom builds with premium finishes, complex structural elements, or difficult site conditions can exceed $5,500 per square metre. These are Sydney-wide figures and reflect the full build cost, including structural work, rough-in trades, joinery, and finishes, but not land, DA fees, or landscaping.
The biggest variable in new builds is not the suburb but the block. A sloping block in Engadine or Heathcote may require substantial retaining walls and elevated slab work, adding $30,000 to $80,000 or more before a single wall goes up. A flat block in Peakhurst on the same project scope will have none of those costs. Site conditions drive cost per square metre more than most homeowners expect. Our builders in Engadine see this regularly on sites that back onto the escarpment.
The table below gives a practical starting point for new build costings in Sydney.
| Build Type | Cost Per Square Metre (Sydney) |
|---|---|
| Standard new home (project-spec finish) | $2,200 – $3,200 |
| Mid-range custom new home | $3,200 – $4,500 |
| High-specification or heritage-sensitive build | $4,500 – $6,500+ |
How much does renovation work cost per square metre in Sydney?
Renovation work in Sydney typically ranges from $2,000 to $5,500 per square metre, depending on scope, extent of structural change, and the condition of the existing home. Cosmetic renovations touching only surfaces and finishes sit at the lower end. Full structural renovations that strip a home to its bones, rewire, re-plumb, and reconfigure the floor plan sit at the top.
The cost per square metre for a renovation is rarely the best way to price a project, because renovations vary so much in what is behind the walls. A fibro cottage in Jannali may look like a simple cosmetic job, but once walls open up, asbestos removal, rotted framing, and outdated wiring can change the scope quickly. That is why we assess every site before quoting.
To understand the full breakdown of what a renovation involves, the guide on How Much Does a Home Renovation Cost? walks through cost categories in detail.
Access is another cost driver that does not show up in a per-square-metre rate. Tight Inner West terrace lanes in suburbs like Leichhardt, Annandale, and Haberfield mean crane lifts, restricted delivery windows, and manual handling of materials through narrow corridors. Our builders in Leichhardt factor this into every quote on terrace renovations from the outset.
What does a home extension cost per square metre in Sydney?
A home extension in Sydney generally costs between $3,000 and $5,500 per square metre for the extension footprint, with single-storey extensions typically sitting lower than two-storey additions. The rate reflects structural work, roof framing, external cladding, insulation, internal linings, electrical and plumbing rough-ins, and a standard finish level. It does not include kitchen or bathroom fit-out costs, which are priced separately.
Extensions in heritage-listed areas carry additional costs. Suburbs such as Haberfield and Oatley have heritage overlays or significant streetscape controls that require specific materials, sympathetic design, and in some cases, independent heritage assessments as part of the DA. These requirements can add $15,000 to $40,000 to a project before construction begins. If your property is subject to heritage controls, factoring in these costs early avoids budget shortfalls.
The full guide on How Much Does a Home Extension Cost? covers what is included in extension pricing and what typically falls outside the contract.
How much does a kitchen renovation cost per square metre?
Kitchen renovation costs in Sydney are typically quoted by project rather than by square metre, but where a rate is applied, the range is $4,000 to $8,000 per square metre of kitchen floor area. A standard 15 m² kitchen renovation sits between $30,000 and $60,000 fully completed, depending on joinery, appliances, benchtop material, and extent of plumbing or electrical changes.
The cost drivers in a kitchen renovation are joinery complexity, benchtop material (stone, engineered stone, laminate), appliance specification, and whether the layout changes require moving plumbing or gas. Moving a sink or cooktop to a new position adds drain rough-in, waterproofing, and trades costs that can add $3,000 to $8,000 to the budget. If the layout stays, the project is more predictable to price.
Read the full breakdown in our guide: How Much Does a Kitchen Renovation Cost?
How much does a bathroom renovation cost per square metre?
Bathroom renovations in Sydney typically cost between $4,500 and $9,000 per square metre of wet area, with most standard bathrooms (4 to 8 m²) completed for $18,000 to $35,000. The wide range reflects tile selection, fixture quality, waterproofing requirements, and whether the layout is changing or staying in place.
At Dura Group, we have completed more than 1,000 bathroom renovations across Sydney. One of the things that separates our pricing is that clients purchase their own tiles and PC (prime cost) items directly. This eliminates builder markups on fixtures and gives homeowners full control over the finish quality within their budget. Our fixed lump sum pricing means the number in the contract is the number you pay.
For a full cost breakdown, visit How Much Does a Bathroom Renovation Cost?
What drives the cost per square metre up in Sydney?
The seven factors that most reliably increase cost per square metre are: sloping sites, heritage controls, poor access, structural complexity, high-specification finishes, trades availability, and the current cost of materials.
Each of these deserves a note:
- Sloping sites require retaining walls, pier foundations, or elevated slabs. Projects in Engadine, Heathcote, and similar hilly areas of the Sutherland Shire carry this cost.
- Heritage controls in areas like Haberfield or Oatley require specific materials, heritage reports, and sometimes specialist trades, adding cost to every stage.
- Poor access in Inner West terrace streets, such as Leichhardt and Annandale, increases labour time and materials handling costs.
- Structural complexity covers load-bearing wall removal, cantilevers, large open spans, and below-ground work such as underpinning or excavation.
- High-specification finishes in joinery, stone, appliances, or bespoke tiles increase the rate quickly, even on a small footprint.
- Trades availability in a tight Sydney market can push costs up, particularly for specialist trades such as heritage plasterers or structural waterproofing.
- Materials costs in 2026 remain elevated compared to pre-2020 benchmarks, with framing timber, steel, and insulation all running above long-run averages.
What brings the cost per square metre down?
The most reliable way to reduce the cost per square metre is to keep the layout simple, maintain existing plumbing and electrical positions, work with standard material sizes, and build on a flat, accessible site.
Other practical cost-control measures include:
- Choosing finishes from in-stock ranges rather than custom-order materials
- Keeping wet areas (kitchen, bathroom, laundry) in their existing positions
- Avoiding cantilevered decks, large roof voids, or feature ceilings unless the budget supports them
- Having a complete and approved DA or CDC before work begins, reducing the risk of on-site variations
- Selecting a builder who has materials and trades lined up before breaking ground, rather than booking trades week-to-week
At Dura Group, our process is built around having everything in place before we start. Mark confirms trades, materials, and sequencing upfront so the project runs without delays that add cost.
Is it better to renovate or rebuild based on cost per square metre?
Rebuilding is usually cheaper per square metre than a full gut-renovation, but the total project cost for a rebuild is almost always higher because the scope is larger. A 250 m² new build at $3,000 per square metre costs $750,000. A 15 m² bathroom renovation at $7,000 per square metre costs $105,000. The rate is higher for the renovation, but the total outlay is far lower.
The rebuild-versus-renovate decision depends on the condition of the existing structure, what you want to achieve, and whether the existing home can deliver the outcome you want without being fully replaced. Our detailed guide on Is It Cheaper to Renovate or Rebuild? works through this question with specific cost comparisons.
Should I use fixed price or cost-plus pricing for my build?
Fixed price contracts give you certainty on the total cost; cost-plus contracts give the builder more flexibility but transfer budget risk to the owner. For most residential projects in Sydney, fixed lump sum pricing is the lower-risk option for homeowners. You know the number before work starts, and variations are priced in writing before they proceed.
For a side-by-side comparison of both approaches, read Cost Plus vs Fixed Price Builder. Dura Group provides fixed lump sum pricing on all renovation and building projects as standard.
How do I get accurate quotes for my Sydney building project?
Accurate quotes require a complete brief, an approved or near-final set of plans, and a site inspection by the builder. Ballpark rates per square metre are a starting point for budgeting, not a substitute for a priced scope of works from your builder.
Our guide on How to Get Renovation Quotes explains what information to prepare, what questions to ask builders, and how to compare quotes when they come back. Before quoting, it also helps to understand The Home Building Process so you know what stages and approvals sit before construction begins.
If you are based in Georges River or the inner south, our builders in Kogarah cover the full Georges River area and are familiar with the council’s planning controls and approval pathways.
For more about how we can help, visit our full home renovation page.
Ready to get a clear cost for your Sydney building project?
Dura Group Building & Renovations provides fixed lump sum pricing with no hidden costs across Sutherland Shire, Georges River, the Inner West, and Canada Bay. Mark personally reviews every project and provides a clear, itemised quote so you know exactly what you are getting before work begins. Contact Dura Group today to arrange a site inspection and get a quote based on your actual scope and site conditions.
Mark Dura is the founder of Dura Group Building & Renovations, a licensed builder (Lic 381531C) with 27+ years of experience in residential renovations, home extensions, and knockdown rebuilds across Sydney. Mark oversees every project from design through to completion.
