Renovation Builders Sydney — Licensed Home Renovations Across Sydney
Kitchens. Bathrooms. Extensions. Second storey additions. All delivered by a licensed builder with fixed-price contracts across Sydney.
HIA Member
MBA NSW0476 300 300Quick Answer
Renovation costs in Sydney range from $18,000 (bathroom) to $700,000+ (second-storey addition). Buildana is a licensed builder delivering fixed-price renovations across Sydney — including all 28 Sydney LGAs — from Western Sydney heartland (Fairfield, Liverpool, Cumberland, Canterbury-Bankstown, Blacktown) through to Parramatta, the Hills, Inner West, North Shore, Eastern Suburbs, Sutherland Shire and the Northern Beaches.
Licensed Builder. Not a Renovation Company.
Many Sydney homeowners have been burned by unlicensed renovators — work done without proper engineering, waterproofing that fails within two years, structural modifications without council approval. The difference between a renovation company and a licensed builder is not just a piece of paper. It's the legal requirement for any work involving structural modifications, waterproofing under AS 3740, electrical circuits, plumbing, and gas fitting.
Buildana holds NSW Contractor Licence 487805C. Every renovation we deliver — from a kitchen renovation involving structural wall removal to a full second storey addition — comes with statutory warranties under the Home Building Act 1989, certifier inspections at every stage, and a fixed-price contract with no provisional sums.
We renovate homes across Sydney — including all 28 Sydney LGAs — from Western Sydney heartland (Fairfield, Liverpool, Cumberland, Canterbury-Bankstown, Blacktown) through to Parramatta, the Hills, Inner West, North Shore, Eastern Suburbs, Sutherland Shire and the Northern Beaches. Whether you need a single room updated or a complete whole-home transformation, the process is the same: thorough assessment, honest advice, clear pricing, and quality construction.
- Kitchen renovations — including structural wall removal
- Bathroom renovations — AS 3740 waterproofing compliant
- Ground-floor extensions and rear additions
- Second-storey additions on existing structures
- Open-plan living conversions
- Council approval management (DA and CDC)
- Fixed-price contracts — no provisional sums
- Statutory warranties under HBA 1989
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Renovation Services
Kitchen Renovations
From standard refits to full open-plan conversions involving structural wall removal. Licensed builder for all structural and electrical work.
From $25,000
Bathroom Renovations
AS 3740 waterproofing compliance is mandatory in NSW. Licensed builder required for waterproofing certification. Main bathrooms and ensuites.
From $18,000
Home Extensions
Rear additions, side extensions, ground-floor room additions, and alfresco living. Extend your home without the cost and disruption of moving.
From $25,000
Second Storey Additions
Double your living space without sacrificing your backyard. Full structural assessment, DA management, and construction. The most complex renovation type.
From $280,000
Licensed Builder vs Renovation Company
In NSW, any residential building work over $5,000 legally requires a licensed contractor. Here’s what you lose when unlicensed work is done:
No Statutory Warranty
The Home Building Act 1989 provides 6-year structural and 2-year non-structural warranties — but only when a licensed builder does the work.
No Home Building Compensation Fund
HBC insurance (formerly Home Warranty Insurance) covers you if the builder dies, disappears, or becomes insolvent. Only licensed builders can provide this.
No Certifier Inspections
Critical hold-point inspections (waterproofing, framing, final) ensure work meets the National Construction Code. Without a licensed builder, these inspections don’t happen.
No Occupation Certificate
Unlicensed structural work cannot receive an Occupation Certificate — creating legal issues when you sell the property.
Fixed-Price Renovations
Buildana’s fixed-price model eliminates the cost uncertainty that makes most homeowners dread renovations. Here’s how it works:
- 1
Detailed scope before contract — every item of work is specified and priced. No provisional sums, no allowances, no ”TBA” line items.
- 2
No variations unless you initiate — the contract price only changes if you request a change to scope, finishes, or design. Buildana absorbs unforeseen conditions within the quoted scope.
- 3
Progress payments tied to milestones — you only pay as work is completed and inspected. No large upfront deposits.
Renovation Across Sydney
Sydney has a high concentration of renovation-ready homes — particularly across Western Sydney. Three factors drive demand:
Aging Housing Stock
Thousands of homes built in the 1960s–1980s across Fairfield, Cumberland, Canterbury-Bankstown, and Liverpool with outdated kitchens, poor-flow floor plans, and no outdoor living connections. These homes have solid bones but need modernisation.
Rising Land Values
Median house prices across Sydney have risen 40–60% in the last decade. Moving to a bigger home now costs $80,000–$130,000 in transaction costs alone (stamp duty, commissions, conveyancing). Renovating is often the financially superior option.
Multi-Generational Households
Western Sydney has the highest rate of multi-generational living in Australia. Families across Sydney need extra bedrooms, ensuites, and separate living areas — exactly the kind of work that extensions and second-storey additions deliver.
Home Renovations by Suburb
Suburb-specific renovation guides with local council requirements and typical project costs.
May 2026 Sydney Renovation Cost Update
Renovation cost lines have shifted in 2026, and three areas dominate the budget pressure. Numbers below are realistic May-2026 Sydney all-in budgets for fixed-price contracts.
Cosmetic refresh (paint, flooring, light kitchen/bath update).
$45,000–$90,000 on a 3-bed brick veneer.
Mid-range structural reno (new kitchen, two bathrooms, partial rewire, internal wall removal, repaint, new floors).
$180,000–$320,000 for a 180–220sqm home.
Full renovation (replan layout, full rewire, reroof if needed, structural beam work, all wet areas, kitchen, new doors and windows).
$380,000–$650,000.
What's moved.
Tiling and waterproofing labour +6–8% (post-2024 Fair Trading enforcement). Electrical labour +6.8% (Rawlinson 2026). Asbestos remediation triggered on more jobs as ceiling penetrations and eaves work increase awareness.
Where renovation no longer competes with KDR.
If you're spending over $400k on a pre-1990 brick veneer, the KDR maths usually wins — $1.05M–$1.35M for a brand-new single storey on the same block with full BASIX, 7-star NatHERS and 6-year warranty.
For an honest fixed-price renovation quote — including a frank KDR-vs-reno comparison if relevant — call 0476 300 300. See /insights/home-renovation-cost-sydney-2026 and /insights/knockdown-rebuild-vs-renovate-western-sydney.
Real Project
Whole-Home Renovation — Guildford
Complete interior overhaul — kitchen, two bathrooms, flooring throughout, and structural wall removal to create open-plan living. All waterproofing to AS 3740. Electrical rewiring and new switchboard.
$185K renovation cost. Property value increased by $280K. Completed in 10 weeks.
Have a question about your project?
Talk to our team — free site assessment and fixed-price quote.
How It Works
From First Call to Final Key
We inspect your existing home, assess structural condition, review zoning and overlays, and identify opportunities and constraints specific to your block and council area.
⏱Renovation plans, structural drawings, and 3D visualisations showing the transformation. We design for natural light, flow, and modern living while respecting existing structure.
⏱DA or CDC application managed through your council (if required). You choose finishes, fixtures, and fittings from our supplier network while we handle the paperwork.
⏱Structured renovation staging with dust and noise management, regular quality inspections, and clear progress updates. Certifier inspections at every hold point.
⏱Final inspection, Occupation Certificate (if applicable), defect rectification, and handover with warranty documentation.
⏱Quality Promise
Renovations are harder than new builds. Where new meets old, precision matters. Buildana brings experienced trades who know how to work with existing structures without cutting corners.
Our Team
Oliver Alameri
Founder / Director / Builder · MPropDev · PhD Student
Ahmad Alameri
Accounts Manager
Claire Wendell
Project Manager
Estimate Your Build Cost
Use our free calculator to get an instant cost estimate for your project
Cost Guide
| Item | Estimated Range |
|---|---|
| Kitchen renovation | $25,000 – $100,000 |
| Bathroom renovation | $18,000 – $90,000 |
| Ground-floor extension | $80,000 – $280,000 |
| Second-storey addition | $280,000 – $700,000+ |
| Open-plan conversion | $15,000 – $40,000 |
| Design & approvals | $12,000 – $45,000 |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
Ready to take the next step?
Free consultation — no obligation, no pressure.
Frequently Asked Questions
Buildana built our granny flat in just 12 weeks. Fast approvals, great communication, and a beautiful final product. Highly recommend.
Fatima Al-Rashid
Liverpool, NSW
We Build Across Sydney
Headquartered in Western Sydney's Fairfield. Active across all 28 metropolitan Sydney LGAs — from Penrith to the Eastern Suburbs, the Hills to the Sutherland Shire.
Last updated: 24 April 2026
Discuss Your Renovation
Free consultation. We'll assess your home, recommend the best approach, and give you an honest fixed-price quote.
Start Your Project