Knockdown Rebuild Mount Kuring-gai — Demo to Handover in 12 Months
Mount Kuring-gai 2080 KDR with tight programme: demolition (3–4 weeks), new home (24–40 weeks). CDC fast-track or Hornsby Shire Council DA. Weekly progress updates.
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MBA NSW0476 300 300Quick Answer
A knockdown rebuild in Mount Kuring-gai costs $450,000–$1,200,000+. Standard single-storey from $450K, two-storey from $650K. Buildana manages demolition, Hornsby Shire Council approvals, and construction under one fixed-price contract.
Mount Kuring-gai KDR — Single Contract, New Home
A knockdown rebuild in Mount Kuring-gai is a bushland project where fire leads the design — 1960s to 1990s brick on 700 to 1,200m² R2 blocks hard against Ku-ring-gai Chase National Park, with extensive BAL-19 to Flame Zone ratings and its own station.
On the higher-rated blocks, the bushfire-compliant construction drives the whole build — materials, glazing, screening — and I am straight that it adds cost, because it is non-negotiable out here. The Hawkesbury Sandstone bedrock means rock of $30,000 to $120,000, priced from a geotech bore.
The older stock can carry asbestos, so a licensed strip-out leads the demolition where needed.
We rebuild fixed-price, licence HBL 487805C. Get our feasibility, with the bushfire and rock costed, before you commit.
Buildana manages the complete knockdown rebuild process in Mount Kuring-gai — 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 Mount Kuring-gai from $450K
- Hornsby Shire Council DA and CDC approvals managed
- Demolition and asbestos removal included
- Hawkesbury Sandstone bedrock — engineered slab design included
- Typical blocks 700–1,200m² in Mount Kuring-gai
- Single and two-storey designs available
- 6-year structural warranty
- Free site assessment — near Mount Kuring-gai station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Fire leads the design
Mount Kuring-gai sits hard against Ku-ring-gai Chase National Park, so BAL-19 to Flame Zone ratings are extensive, and on the higher-rated blocks the bushfire-compliant construction drives the whole build. I am straight that it adds cost — it is non-negotiable out here, and doing it properly is what keeps the home compliant and safe.
The generous 700 to 1,200m² blocks give the compliant design room to work.
Rock and era demolition
The Hawkesbury Sandstone bedrock means rock of $30,000 to $120,000, priced from a geotech bore. The older stock can carry asbestos, so a licensed strip-out leads the demolition where needed.
Both are in the feasibility and the fixed price.
Knockdown-rebuild builder in Mount Kuring-gai — key facts
- Suburb
- Mount Kuring-gai, NSW 2080
- Council / LGA
- Hornsby Shire Council (Hornsby Shire)
- Primary zoning
- R2 Low Density predominant
- Typical lot size
- 700–1,200m²
- Soil class
- Hawkesbury Sandstone bedrock
- Median house price
- $1.8M–$2.6M Hornsby/Asquith/Mount Colah; $2.4M–$3.6M Cherrybrook/Beecroft/Pennant Hills; $3.0M–$8.0M+ Galston/Arcadia acreage
- Home era
- 1900s–1940s Federation heritage
- 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 |
|---|---|
| Demolish 1900s–1940s Federation heritage (Beecroft/Cheltenham/Pennant Hills/Wahroonga boundary) + 1960s–1990s brick (Cherrybrook/Asquith/Mount Colah/Mount Kuring-gai) + 2010s+ R3/R4 redevelopment around Hornsby/Asquith/Waitara stations fibro → modern brick double storey | $520,000 – $1,000,000 |
| Demolish brick veneer → new brick veneer (like-for-like uplift) | $480,000 – $850,000 |
| Demolish to downsize (smaller footprint) | $460,000 – $720,000 |
| Demolish to upsize (growing family) | $700,000 – $1,200,000 |
| Demolish older home, rebuild investment-grade | $560,000 – $900,000 |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
On-site assessment covers block measurements, soil conditions (Class Hawkesbury Sandstone bedrock), tree preservation checks, service locations, and asbestos identification on your 1900s–1940s Federation heritage (Beecroft/Cheltenham/Pennant Hills/Wahroonga boundary) + 1960s–1990s brick (Cherrybrook/Asquith/Mount Colah/Mount Kuring-gai) + 2010s+ R3/R4 redevelopment around Hornsby/Asquith/Waitara stations-era home. Clear feasibility report before you commit.
⏱Approval pathway gets locked at design stage based on FSR, height, setbacks, and any overlays. Most Mount Kuring-gai KDRs go CDC for speed; we use DA when the design wants to push past complying development limits.
⏱Existing home demolished by licensed contractors. Asbestos removed and disposed of to EPA standards.
⏱Construction starts the week demolition finishes — no idle site, no momentum lost. Slab pour usually within the first month, frame stand soon after.
⏱Final inspection, Occupation Certificate, 6-year structural warranty, keys, and maintenance guide. Services reconnected.
⏱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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Last updated: 1 April 2026
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