
Knockdown Rebuild Kellyville Ridge — Demo to Handover in 12 Months
Kellyville Ridge 2155 KDR with tight programme: demolition (3–4 weeks), new home (24–40 weeks). CDC fast-track or The Hills Shire Council DA. Weekly progress updates.
Knockdown Rebuild Builder in Kellyville Ridge
Knockdown rebuild in Kellyville Ridge is worth framing honestly, because this master-planned suburb was built in the 2000s to 2010s. Most of the housing is too young to knock down, so for the bulk of the suburb, a renovation or extension makes more sense.
Where a rebuild does apply is a tired early-2000s home that no longer suits. On one of those, a rebuild on the 400 to 700m² block can make sense, and I run it against a renovation so you can compare.
The ground is Wianamatta Shale, so any new home needs a slab designed off a real geotech. The strong young-family demand supports whichever path fits.
We build fixed-price, licence HBL 487805C. Tell me about your home and I will steer you to the right product.
Buildana manages the complete knockdown rebuild process in Kellyville Ridge — 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 Kellyville Ridge from $450K
- The Hills Shire Council DA and CDC approvals managed
- Demolition and asbestos removal included
- M — engineered slab design included
- Typical blocks 400–700m² in Kellyville Ridge
- Single and two-storey designs available
- 6-year structural warranty
- Free site assessment — near Bus to Kellyville Metro (2 km) station

Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Mostly too new to knock down
Kellyville Ridge is a master-planned suburb built in the 2000s to 2010s with strong young-family demand. Most of the housing is too young to knock down, so I give you a straight read rather than pushing a rebuild.
Where a tired early-2000s home genuinely no longer works, a rebuild resets it — run against a renovation so you can weigh both.
Shale and clean feasibility
The Wianamatta Shale takes a slab designed off a real geotech. The 2000s-2010s stock rarely carries asbestos, so demolition is straightforward where a rebuild is the call.
On 400 to 700m² blocks, a rebuild has room to work when it is genuinely warranted.
Knockdown-rebuild builder in Kellyville Ridge — key facts
- Suburb
- Kellyville Ridge, NSW 2155
- Council / LGA
- The Hills Shire Council (The Hills)
- Primary zoning
- R2 Low
- Typical lot size
- 400–700m²
- Soil class
- M
- Median house price
- $1.4M–$1.9M
- Home era
- 2000s–2010s
- 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.
Quality Promise
Every Buildana knockdown rebuild in Kellyville Ridge is delivered under a fixed-price contract — site assessment through to defect-free handover.
How It Works
From First Call to Final Key
Everything that has to be right before we touch the ground. We assess your Kellyville Ridge block — lot size (typical 400–700m²), R2 Low zoning, setbacks, FSR, and existing dwelling condition. Asbestos survey included. You'll know feasibility and budget before committing. Complete design package: floor plans, elevations, 3D renders, structural engineering, geotech, BASIX, stormwater, and all documentation The Hills Shire Council requires. Approval managed start to finish.
⏱The Kellyville Ridge construction phase. Fixed price, programmed, supervised. Pre-demolition: dilapidation report on adjoining properties (protects you against unfounded damage claims), service disconnections, asbestos clearance, neighbour notification. Then 1–2 weeks of physical demolition with material sorted at site for recycling where possible. Fixed-price construction: engineered slab, frame, lock-up, fit-out, external works. 8–12 months depending on size. Weekly progress reports with photos and milestone tracking.
⏱The job isn't done when the site's clean; it's done when you have keys, certificates and warranties. Same address, completely different home. Permanent gas, water, electrical, NBN reconnected and tested. Council waste collection re-registered. Mailbox reinstalled. Move-in ready, not move-in plus 100 small jobs.
⏱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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Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Kellyville Ridge 2155. The Hills Shire Council regulations and local controls are covered on each page.