Knockdown Rebuild Hassall Grove — One Contract, Demo to Keys
Everything under one agreement in Hassall Grove 2761: demolition, asbestos removal, site prep, design, approvals, engineering, new home construction, landscaping and Occupation Certificate.
HIA Member
MBA NSW0476 300 300Demolish and Rebuild in Hassall Grove
Hassall Grove has 1990s homes on R2 blocks. Similar to Dean Park and Oakhurst — quiet, settled, and ripe for KDR where the existing home no longer serves the family. Standard Blacktown City Council approvals and demolition. Fixed-price construction from Buildana.
Hassall Grove's housing stock is mostly from the 1990s, which is the era where structural bones either hold up or don't — and we see plenty of both across the suburb. For knocking down and rebuilding here, that history matters: the stock is recent enough to skip most heritage and asbestos complications, though survey is still worth doing. Median price $800K–$1.0M on typical 550–700m² blocks. Class M–H ground, foundation cost band $24,000–$42,000.
Buildana manages the complete knockdown rebuild process in Hassall Grove — 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 Hassall Grove from $450K
- Blacktown City Council DA and CDC approvals managed
- Demolition and asbestos removal included
- Class M–H soil — engineered slab design included
- Typical blocks 550–700m² in Hassall Grove
- Single and two-storey designs available
- 6-year structural warranty
- Free site assessment — near Mount Druitt (3 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Why Knockdown Rebuild in Hassall Grove?
Hassall Grove features 1990s homes on standard blocks in a quiet, family-oriented setting. Good community amenities and access to main roads.
Hassall Grove sits in the Blacktown City local government area with 550–700m² residential blocks and R2 Low Density zoning. Building costs are around the Sydney metro average, balancing construction value with lifestyle and growth. Transport access via Mount Druitt (3 km) connects Hassall Grove to the wider Sydney network. 1990s-era housing stock across Hassall Grove is prime for knockdown rebuild — replacing dated layouts and materials with modern, NCC-compliant homes that maximise block potential. Ground conditions (Class M–H) across Hassall Grove are well understood by local builders — Buildana's engineering accounts for moderately to highly reactive soil movement.
Blacktown LGA has one of Sydney's largest concentrations of KDR-suitable housing — 1960s–1990s homes on 550–700m² blocks across suburbs from Blacktown to Seven Hills, Doonside, and Rooty Hill. Building costs are among the most competitive in metropolitan Sydney. Blacktown Council's DCP Section 6 supports housing renewal with FSR 0.5:1, height 9m, and front setbacks of 4.5m–6m. CDC fast-track approval is widely available. Buildana has strong experience across Blacktown's residential areas.
Planning Controls — Blacktown City Council
Blacktown LEP 2015 & DCP Section 6. R2 zones: FSR 0.5:1, building height 9m, front setback 4.5m–6m (varies by lot width), landscaped area 30%. CDC-eligible designs can fast-track approval to 10–15 business days.
Knockdown-rebuild builder in Hassall Grove — key facts
- Suburb
- Hassall Grove, NSW 2761
- Council / LGA
- Blacktown City Council (Blacktown City)
- Primary zoning
- R2 Low Density
- Typical lot size
- 550–700m²
- Soil class
- Class M–H
- Median house price
- $800K–$1.0M
- Home era
- 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
Building in Hassall Grove — Local Context
Site & Ground Conditions in Hassall Grove
Hassall Grove sits on Class M–H soil — moderately to highly reactive clay. For a knockdown rebuild, that rules out the cheapest off-the-shelf slab designs straight away. and pushes engineered footings into the $24,000–$42,000 range on most 550–700m² blocks here. Geotechnical testing isn't optional — every Buildana rebuild in Hassall Grove starts with a borehole report so the slab and footings are sized to your actual block, not a generic spec. Skipping that step is how you end up with cracked cornices and sticking doors three years in. Drainage design matters too — overland flow paths on Hassall Grove's topography can collect water against rear setbacks if the contour survey is sloppy.
Approval Timeline for Hassall Grove
Realistic timeline for a rebuild in Hassall Grove: 10–15 business days CDC, or 8–14 weeks DA — depends on the design. Add 2–4 weeks before lodgement for documentation, BASIX certificate, geotech report, and survey if you don't already have one. Construction Certificate is issued separately before works commence.
What a Rebuild Costs in Hassall Grove
Hassall Grove's median house price sits at $800K–$1.0M. That's the number that decides whether a knockdown rebuild stacks up financially. A new build at $800K–$1.0M+ replacement is well-supported by the local market and adds resale headroom on standard 550–700m² blocks. Buildana provides itemised quotes — no provisional sums, no allowances, no "as per engineering" line items.
Hassall Grove Housing Stock & What That Means
Most homes in Hassall Grove were built 1990s. Modern homes in this era generally have no asbestos, though survey is still standard before any major works.
What Recent Approvals Show
Blacktown City Council's recent decisions for Rebuilds in Hassall Grove reveal a clear pattern — applications that demonstrate genuine understanding of Blacktown City Council's DCP — not just the State controls — progress materially faster. Sloppy lodgement adds 4-8 weeks of round-trip; clean lodgement doesn't.
Builder’s Take on Hassall Grove
KDR maths in Hassall Grove usually wins against deep renovation once renovation costs cross $300K. Below that, renovation is competitive. Above it, you're paying renovation pricing for a home that's still structurally 1970s. New build gives you 6-year warranty, NCC 2025 performance, and a genuine reset on property value.
Site contamination checks — tanks, asbestos pipework, lead paint — take 2–3 days and cost $1.5K–$3K. Worth doing before contract, not after demo starts. On older Hassall Grove streets, legacy issues turn up often enough that we'd rather know before we sign.
Hassall Grove vs Nearby Suburbs
Hassall Grove vs nearby suburbs — key metrics for knocking down and rebuilding.
| Suburb | Median Price | Typical Lot | Soil Class | Era | Station |
|---|---|---|---|---|---|
| Hassall Grove2761this suburb | $800K–$1.0M | 550–700m² | Class M–H | 1990s | Mount Druitt (3 km) |
| Plumpton2761 | $750K–$950K | 550–700m² | Class M–H | 1970s–1990s | Mount Druitt (2 km) |
| Oakhurst2761 | $750K–$950K | 550–700m² | Class M–H | 1980s–1990s | Mount Druitt (2 km) |
| Dean Park2761 | $800K–$1.0M | 550–700m² | Class M–H | 1990s | Mount Druitt (3 km) |
Median price, soil class, and lot size shape build feasibility and final cost. Buildana assesses every site against these and other constraints during the free feasibility stage.
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
Our Hassall Grove knockdown rebuilds sequence demolition, slab, frame, lockup, handover. Fixed price locked before demolition starts.
How It Works
From First Call to Final Key
On-site assessment covers block measurements, soil conditions (Class M–H), tree preservation checks, service locations, and asbestos identification on your 1990s-era home. Clear feasibility report before you commit.
⏱Approval pathway gets locked at design stage based on FSR, height, setbacks, and any overlays. Most Hassall Grove 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
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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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Last updated: 1 April 2026
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Other Buildana services in Hassall Grove
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Hassall Grove 2761. Blacktown City Council regulations and local controls are covered on each page.