Knockdown Rebuild Kellyville — Demo to Handover in 12 Months
Kellyville 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.
HIA Member
MBA NSW0476 300 300Quick Answer
A knockdown rebuild in Kellyville 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.
Demolish and Rebuild in Kellyville
A knockdown rebuild in Kellyville needs an honest read on your home's age, because this master-planned suburb spans the 1990s to the 2010s. An older 1990s home is edging into rebuild territory; much of the newer stock is too young to knock down, and a renovation makes more sense. I would rather give you that honest read than knock down a serviceable home.
Where a rebuild does stack up, the 500 to 800m² blocks give real scope for a modern custom home, with the Metro and strong family demand supporting the location. The reactive shale means the new slab is engineered off geotech, and note the Metro-driven R3 zoning can suit a duplex or medium-density play on the right block.
What I check first on your Kellyville knockdown rebuild: whether your home's age justifies a rebuild, whether R3 zoning near the Metro suits a duplex instead, and the reactive clay for the new slab. Those decide the play.
We rebuild fixed-price, licence HBL 487805C. Get our knockdown rebuild feasibility before you commit.
Buildana manages the complete knockdown rebuild process in Kellyville — 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 from $450K
- The Hills Shire Council DA and CDC approvals managed
- Demolition and asbestos removal included
- M — engineered slab design included
- Typical blocks 500–800m² in Kellyville
- Single and two-storey designs available
- 6-year structural warranty
- Free site assessment — near Kellyville (Sydney Metro Northwest, in suburb) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Is your Kellyville home old enough to rebuild?
Kellyville spans the 1990s to the 2010s, so age is the deciding question for a knockdown rebuild. An older 1990s home is edging into rebuild territory, dated enough that a modern replacement can add value. Much of the newer stock is too young to knock down, and a renovation or extension makes far more sense. So the first thing I do is give you an honest read for your specific home.
Where a rebuild does stack up, the 500 to 800m² blocks give real scope for a modern custom home, with the Metro and strong family demand keeping the location strong. Near the Metro, R3 zoning can also make a duplex the better play.
Reactive clay and the Metro zoning
The reactive shale under Kellyville means the new slab is engineered off a real geotech to stay stable against clay movement. The newer stock generally has little asbestos, keeping the demolition clean where a rebuild proceeds. Near the Metro station, R3 zoning can suit a duplex or medium-density play over a single rebuild, so I run those numbers where your block sits in that band.
Knockdown-rebuild builder in Kellyville — key facts
- Suburb
- Kellyville, NSW 2155
- Council / LGA
- The Hills Shire Council (The Hills)
- Primary zoning
- R2 Low
- Typical lot size
- 500–800m²
- Soil class
- M
- Median house price
- $1.8M–$2.6M
- Home era
- 1990s–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.
Cost Guide
| Item | Estimated Range |
|---|---|
| Clean demolition + standard rebuild | $490,000 – $770,000 |
| Asbestos-affected demolition + rebuild | $520,000 – $820,000 |
| Sloping site + cut/fill + rebuild | $570,000 – $920,000 |
| Heritage-affected or complex site | $610,000 – $1,120,000 |
| Premium finishes & architectural design | $970,000+ |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
KDR starts with an honest look at the existing house. Sometimes it's worth keeping. Most Kellyville homes from the 1990s–2010s — 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 M 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 Kellyville block you'd get on a greenfield build. The only difference is you still live in the street you chose.
⏱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
We Build Across Sydney
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
Explore Related Topics
Knockdown Rebuild in Kellyville
Free KDR site assessment for Kellyville 2155. We'll assess your block, estimate cost, and provide a fixed-price budget.
Start Your ProjectMore in Kellyville
Other Buildana services in Kellyville
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Kellyville 2155. The Hills Shire Council regulations and local controls are covered on each page.