Licensed Knockdown Rebuild Builder Forestville
NSW licensed KDR specialist in Forestville 2087. Asbestos-accredited demolition, Class Hawkesbury Sandstone engineered slab, BASIX 2025, 6-year structural warranty on the new home.
HIA Member
MBA NSW0476 300 300Quick Answer
A knockdown rebuild in Forestville costs $450,000–$1,200,000+. Standard single-storey from $450K, two-storey from $650K. Buildana manages demolition, Northern Beaches Council approvals, and construction under one fixed-price contract.
New Home on Your Forestville Block
Forestville's 1950s to 1980s brick homes sit on some of the most rebuild-friendly land on the Northern Beaches, 600 to 900m² blocks, established streets, and a knock down and rebuild market driven by families who want to stay near Forestway and the school rather than move. The catch is under the grass: Hawkesbury Sandstone, with rock excavation typically $40K to $100K once the digger hits it.
Lots backing Garigal National Park carry BAL-12.5 to BAL-29 bushfire ratings, which changes window and cladding specs but rarely kills a project at those levels. Medians of $2.2M to $3.4M make the maths straightforward, the post-war house is a fraction of the land value. Rock plus BAL is entirely manageable when it is costed before contract, brutal when it is not.
What I would check first on a Forestville block: the sandstone rock cost from a geotech, any BAL rating on the Garigal edge, and the land value against the tired house. Those set the budget.
We build these fixed-price, licence HBL 487805C. Start with our site assessment and get both answered in writing.
Buildana manages the complete knockdown rebuild process in Forestville — 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 Forestville from $450K
- Northern Beaches Council DA and CDC approvals managed
- Demolition and asbestos removal included
- Hawkesbury Sandstone — engineered slab design included
- Typical blocks 600–900m² in Forestville
- Single and two-storey designs available
- 6-year structural warranty
- Free site assessment — near B-Line bus to CBD (Frenchs Forest interchange) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Rebuild-friendly land, rock underneath
Forestville's 1950s to 1980s brick homes sit on some of the most rebuild-friendly land on the Northern Beaches: 600 to 900m² blocks, established streets, and families who want to stay near Forestway and the school rather than move.
The catch is under the grass, Hawkesbury Sandstone, with rock excavation typically $40K to $100K once the digger hits it. We get the geotech done so that is priced, not discovered.
BAL on the bush edge
Lots backing Garigal National Park carry BAL-12.5 to BAL-29 ratings, which change window and cladding specs but rarely kill a project at those levels.
At $2.2M to $3.4M medians the post-war house is a fraction of the land value, so the maths is straightforward. Rock plus BAL is manageable costed before contract, brutal when it is not. We answer both in writing.
Knockdown-rebuild builder in Forestville — key facts
- Suburb
- Forestville, NSW 2087
- Council / LGA
- Northern Beaches Council (Northern Beaches)
- Primary zoning
- R2 Low
- Typical lot size
- 600–900m²
- Soil class
- Hawkesbury Sandstone
- Median house price
- $2.2M–$3.4M
- Home era
- 1950s–1980s + premium contemporary
- 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 Forestville homes from the 1950s–1980s + premium contemporary — 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 Hawkesbury Sandstone 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 Forestville block you'd get on a greenfield build. The only difference is you still live in the street you chose.
⏱Quality Promise
Our Forestville knockdown rebuilds sequence demolition, slab, frame, lockup, handover. Fixed price locked before demolition starts.
Cost Guide
| Item | Estimated Range |
|---|---|
| Clean demolition + standard rebuild | $540,000 – $840,000 |
| Asbestos-affected demolition + rebuild | $570,000 – $900,000 |
| Sloping site + cut/fill + rebuild | $630,000 – $1,010,000 |
| Heritage-affected or complex site | $670,000 – $1,230,000 |
| Premium finishes & architectural design | $1,060,000+ |
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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