Knockdown Rebuild Mortlake — One Contract, Demo to Keys
Everything under one agreement in Mortlake 2137: demolition, asbestos removal, site prep, design, approvals, engineering, new home construction, landscaping and Occupation Certificate.
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MBA NSW0476 300 300Quick Answer
A knockdown rebuild in Mortlake costs $450,000–$1,200,000+. Standard single-storey from $450K, two-storey from $650K. Buildana manages demolition, City of Canada Bay Council approvals, and construction under one fixed-price contract.
Mortlake KDR — Single Contract, New Home
A knockdown rebuild in Mortlake is a riverside project adjacent to Breakfast Point — Federation cottages, inter-war heritage, post-war stock and contemporary homes on 400 to 800m² blocks, with a wharf and Putney ferry connection. A rebuild resets a dated home into a modern one in a settled riverside pocket.
The ground is Wianamatta Shale, so the slab is designed off a real geotech, and on the river-fall blocks retaining and stepped footings come into play. Heritage Conservation Areas cover several streets, so a listed block goes down the DA path.
The older stock can carry asbestos and lead paint, so a licensed strip-out leads the demolition.
We rebuild fixed-price, licence HBL 487805C. Get our knockdown rebuild feasibility before you commit.
Buildana manages the complete knockdown rebuild process in Mortlake — from site assessment and architectural design through to DA or CDC approval, demolition management, and fixed-price construction to handover. One builder, one contract, one new home.
Read our KDR Cost Guide 2026 or use the Renovation vs KDR Calculator to compare options.
- New home in Mortlake from $450K
- City of Canada Bay Council DA and CDC approvals managed
- Demolition and asbestos removal included
- M–H — engineered slab design included
- Typical blocks 400–800m² in Mortlake
- Single and two-storey designs available
- 6-year structural warranty
- Free site assessment — near North Strathfield (2 km) / Mortlake ferry to Putney station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
A settled riverside pocket
Mortlake is the riverside suburb adjacent to Breakfast Point, with Federation cottages, post-war stock and contemporary homes on 400 to 800m² blocks, plus a wharf and Putney ferry connection. A rebuild resets a dated home into a modern one in a settled riverside pocket.
It offers riverside living at more accessible prices than the premium peninsulas nearby.
Shale, river fall and heritage
The ground is Wianamatta Shale, so the slab is designed off a real geotech, and on the river-fall blocks retaining and stepped footings come into play. Heritage Conservation Areas cover several streets, so a listed block goes down the DA path.
The older stock can carry asbestos and lead paint, so a licensed strip-out leads the demolition.
Knockdown-rebuild builder in Mortlake — key facts
- Suburb
- Mortlake, NSW 2137
- Council / LGA
- City of Canada Bay Council (City of Canada Bay)
- Primary zoning
- R2 Low
- Typical lot size
- 400–800m²
- Soil class
- M–H
- Median house price
- $1.9M–$3.5M
- Home era
- 1900s–1960s
- Typical price range
- $450,000 – $1,200,000+
- Typical timeline
- 14–22 months including demolition
- Approval pathway
- CDC where eligible or DA for complex sites
Want a real number for YOUR block — not a generic estimate?
Free site assessment, fixed-price contract, line-itemised quote within 48 hours. No high-pressure sales — just a real builder talking real numbers.
How It Works
From First Call to Final Key
KDR starts with an honest look at the existing house. Sometimes it's worth keeping. Most Mortlake homes from the 1900s–1960s — especially fibro and brick-veneer — are beyond the point where renovation makes sense. We tell you straight.
⏱Demolition is pre-approved to run parallel with rebuild design. Asbestos cleared, services abolished, site stripped in a single mobilisation. Geotech reconfirms Class M–H soil with the old house gone.
⏱New house goes up on the same footprint or a better one, whichever serves the block. Modern NCC envelope, better orientation, fit-for-purpose room sizes. The suburb stays the same; the house finally fits it.
⏱Final handover: new OC, six-year structural warranty, all the documentation on your Mortlake block you'd get on a greenfield build. The only difference is you still live in the street you chose.
⏱Quality Promise
Mortlake knockdown rebuild done cleanly: licensed demolition, compliant slab, new home built to NCC 2025. Fixed-price contract.
Cost Guide
| Item | Estimated Range |
|---|---|
| Clean demolition + standard rebuild | $460,000 – $710,000 |
| Asbestos-affected demolition + rebuild | $480,000 – $760,000 |
| Sloping site + cut/fill + rebuild | $530,000 – $860,000 |
| Heritage-affected or complex site | $570,000 – $1,050,000 |
| Premium finishes & architectural design | $900,000+ |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
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
Still got questions? Talk to Oliver directly.
30-min free call — bring your block, your brief, your budget. We'll map out feasibility, timeline, and realistic cost. No sales pitch.
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
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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: 1 April 2026
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