Knockdown Rebuild Warrawee — From $450K All-In
Fixed-price knockdown rebuild in Warrawee 2074. Demolition, new home, all Ku-ring-gai Council approvals under one contract. No surprises, no variation trail.
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MBA NSW0476 300 300Quick Answer
A knockdown rebuild in Warrawee costs $450,000–$1,200,000+. Standard single-storey from $450K, two-storey from $650K. Buildana manages demolition, Ku-ring-gai Council approvals, and construction under one fixed-price contract.
Warrawee Knockdown Rebuilds
A knockdown rebuild in Warrawee is a premium project in the smallest of the upper North Shore pockets — between Turramurra and Wahroonga on the T1 line, with the Knox and Abbotsleigh catchment lifting the floor price. On 900 to 1,500m² blocks holding 1920s to 1960s heritage stock, a quality rebuild sits in strong demand.
The key planning fact here is heritage: Heritage Conservation Areas cover several streets, which means most knockdown rebuild proposals go through a full DA rather than the faster CDC path. On a character home, that also raises the restore-versus-rebuild question, and I will give you a straight read.
The ground is Class M, taking a standard engineered slab off a geotech. The pre-war stock almost always carries asbestos and can carry lead paint, so a licensed strip-out leads the demolition.
We rebuild fixed-price, licence HBL 487805C. Get our feasibility, with the heritage path checked, before you commit.
Buildana manages the complete knockdown rebuild process in Warrawee — 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 Warrawee from $450K
- Ku-ring-gai Council DA and CDC approvals managed
- Demolition and asbestos removal included
- Class M soil — engineered slab design included
- Typical blocks 900–1,500m² in Warrawee
- Single and two-storey designs available
- 6-year structural warranty
- Free site assessment — near Warrawee station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
A small, premium catchment pocket
Warrawee is the smallest premium pocket in the LGA, sitting between Turramurra and Wahroonga on the T1 North Shore line. The Knox and Abbotsleigh catchment lifts the floor price, and on 900 to 1,500m² blocks a quality rebuild holds real value.
It is a premium single-home suburb where the build needs to suit the street.
Heritage means a full DA
Heritage Conservation Areas cover several Warrawee streets, so most knockdown rebuild proposals go through a full DA rather than the faster CDC path. That is more time and design care, and on a character home it also raises the restore-versus-rebuild question. I check the heritage path upfront.
The Class M ground takes a standard engineered slab off a geotech. The pre-war stock almost always carries asbestos and can carry lead paint, so a licensed strip-out leads any demolition.
Knockdown-rebuild builder in Warrawee — key facts
- Suburb
- Warrawee, NSW 2074
- Council / LGA
- Ku-ring-gai Council (Ku-ring-gai)
- Primary zoning
- R2 Low Density
- Typical lot size
- 900–1,500m²
- Soil class
- Class M
- Median house price
- $3.2M–$4.6M
- Home era
- 1920s–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.
Cost Guide
| Item | Estimated Range |
|---|---|
| Entry-level single storey KDR | $620,000 – $850,000 |
| Mid-range double storey KDR | $940,000 – $1,300,000 |
| Architectural KDR | $1,300,000 – $1,950,000 |
| Luxury KDR (high-spec finishes) | $1,950,000+ |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
Free site inspection of your Warrawee property. We check lot dimensions, Ku-ring-gai Council's planning controls, existing home condition, and potential asbestos. Written assessment with budget estimate within 5 business days.
⏱KDR is the chance to get the design right — the new build doesn't have to mimic the original layout. We start from your block's strengths (orientation, slope, views) and your family's brief, then design the home the original lot always deserved.
⏱Licensed demolition of existing 1920s–1960s (heavy heritage stock)-era dwelling. Asbestos removal by certified contractors (if present). Site cleared, levelled, and ready for new slab. Typically 1–2 weeks.
⏱Your new home goes up on the cleared site. Engineered slab sized for Class M soil, frame, roof, fit-out, kitchen, bathrooms, flooring, painting, driveway, and landscaping. Quality inspections at every stage.
⏱Handover pack: OC, structural certificates, BASIX, appliance manuals and warranties, paint colour schedule, maintenance plan, and the keys. Six-year structural warranty kicks in from OC date — keep the documentation safe for any future sale.
⏱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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