Knockdown Rebuild West Pennant Hills — From $450K All-In
Fixed-price knockdown rebuild in West Pennant Hills 2125. Demolition, new home, all The Hills Shire Council approvals under one contract. No surprises, no variation trail.
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A knockdown rebuild in West Pennant Hills costs $450,000–$1,200,000+. Standard single-storey from $450K, two-storey from $650K. Buildana manages demolition, The Hills Shire Council approvals, and construction under one fixed-price contract.
Knockdown Rebuild Builder in West Pennant Hills
A knockdown rebuild in West Pennant Hills is a strong premium play on the aging 1970s to 1990s stock on large leafy blocks. The homes sit on generous 700 to 1,200m² R2 lots with established gardens and top schools, so a rebuild gives you a substantial custom home in a premium Hills suburb. The shale and sandstone interface is the main technical driver on the new slab.
The Wianamatta Shale and Hawkesbury Sandstone interface means the new slab and footings get designed against the specific ground on your block, with rock possible on the sandstone side. Where the older home carries asbestos in eaves or additions, a licensed strip-out and clearance certificate lead the demolition.
What I check first on your West Pennant Hills knockdown rebuild: the ground at the shale-sandstone interface and any rock, asbestos in the demolition, and the block's scope for your new home. Those decide the play and the price.
We rebuild fixed-price, licence HBL 487805C. Get our knockdown rebuild feasibility before you commit.
Buildana manages the complete knockdown rebuild process in West Pennant Hills — 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 West Pennant Hills from $450K
- The Hills Shire Council DA and CDC approvals managed
- Demolition and asbestos removal included
- M — engineered slab design included
- Typical blocks 700–1,200m² in West Pennant Hills
- Single and two-storey designs available
- 6-year structural warranty
- Free site assessment — near Cherrybrook Metro (3 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
A premium rebuild on a large block
West Pennant Hills is a leafy, established premium Hills suburb with generous 700 to 1,200m² blocks, established gardens and top schools, and its aging 1970s to 1990s stock genuinely suits replacement. A knockdown rebuild gives you a substantial custom home on a large block in a strong premium market, resetting a dated home rather than renovating around aged bones.
The generous blocks give real scope for a large, well-designed home that takes advantage of the leafy setting, which is where the value is here.
Shale-sandstone ground and asbestos
West Pennant Hills sits at the Wianamatta Shale and Hawkesbury Sandstone interface, so the new slab and footings get designed against the specific ground on your block, with rock possible on the sandstone side, priced from a real geotech. Where the older home carries asbestos in eaves or additions, a licensed strip-out and clearance certificate lead the demolition. I price the ground and the clearance from real assessments.
Knockdown-rebuild builder in West Pennant Hills — key facts
- Suburb
- West Pennant Hills, NSW 2125
- Council / LGA
- The Hills Shire Council (The Hills)
- Primary zoning
- R2 Low
- Typical lot size
- 700–1,200m²
- Soil class
- M
- Median house price
- $2.2M–$3.5M+
- Home era
- 1970s–1990s
- 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 |
|---|---|
| Single storey rebuild (150–200m²) | $500,000 – $710,000 |
| Double storey rebuild (200–300m²) | $710,000 – $1,100,000 |
| Premium rebuild (300m²+) | $1,100,000+ |
| Demolition (1970s–1990s West Pennant Hills home) | $19,000 – $42,000 |
| Asbestos removal (if present) | $8,000 – $26,000 |
| Service disconnections & reinstatement | $3,000 – $8,000 |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
Everything that has to be right before we touch the ground. KDR feasibility is two questions: what can the block legally support, and is it cheaper to build new than fix old. We answer both in writing within a week, with cost ranges grounded in current West Pennant Hills market data — not generic Sydney averages. New home designed for your West Pennant Hills block — maximising FSR, orientation, and streetscape. Working drawings, engineering, and BASIX prepared. CDC or DA lodged with The Hills Shire Council.
⏱The West Pennant Hills construction phase. Fixed price, programmed, supervised. Full demolition management: asbestos survey report, licensed removal where required, structural demolition, site clearing, temporary fencing, and dust/noise management. The Hills Shire Council demolition permit obtained beforehand. Build sequence: site prep, slab pour, frame stand, roof, brickwork, lock-up, plumbing and electrical rough-in, plaster, internal fit-out, kitchen install, tiling, flooring, painting, external works, final clean. Each stage signed off before payment release.
⏱The job isn't done when the site's clean; it's done when you have keys, certificates and warranties. Defect-free handover inspection, OC issued, keys in hand. Permanent services reconnected, landscaping complete, 6-year structural warranty, and full maintenance guide provided.
⏱Our Team
Oliver Alameri
Founder / Director / Builder · MPropDev · PhD Student
Ahmad Alameri
Accounts Manager
Claire Wendell
Project Manager
Estimate Your Build Cost
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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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Knockdown Rebuild in West Pennant Hills
Free KDR site assessment for West Pennant Hills 2125. We'll assess your block, estimate cost, and provide a fixed-price budget.
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Other Buildana services in West Pennant Hills
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in West Pennant Hills 2125. The Hills Shire Council regulations and local controls are covered on each page.