Licensed Granny Flat Specialist Hassall Grove
NSW licensed builder delivering SEPP-compliant granny flats across Hassall Grove 2761. BASIX, engineered slab (Class M–H), full certifier sign-off and 6-year structural warranty.
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MBA NSW0476 300 300Quick Answer
A granny flat in Hassall Grove costs $150,000–$300,000+ depending on size and finishes. 1-bed from $150K, 2-bed from $200K. CDC fast-track approval in 10–15 business days. Buildana manages design, Blacktown City Council approval and fixed-price construction.
Granny Flat Builder in Hassall Grove
Hassall Grove has 1990s homes on R2 blocks. Similar granny flat profile to Dean Park and Oakhurst — affordable, practical, and $370–$490/week per week rental income. Blacktown City Council CDC fast-track approval. Buildana handles the build.
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 building a granny flat 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 full granny flat process in Hassall Grove — from site assessment and CDC fast-track approval through to fixed-price construction and handover. We build studio, 1-bedroom, and 2-bedroom designs up to the NSW maximum of 60m².
Read our Complete Granny Flat Guide or explore granny flat builds across Sydney.
- Granny flats in Hassall Grove from $150K
- CDC fast-track approval (10–15 business days)
- 550–700m² blocks — most qualify for 60m² granny flat
- Hassall Grove zoned R2 Low Density
- Fixed-price contract — design to handover
- Class M–H soil — engineered slab included
- Rental yield $370–$490/week in Hassall Grove
- 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 Build a Granny Flat 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. Secondary dwellings on 550–700m² blocks deliver rental returns of $370–$490/week per week. CDC approval through a private certifier typically takes 10–15 business days. 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.
Granny flat construction in Blacktown LGA delivers solid rental returns of $370–$490 per week at construction costs below the Sydney average. Blocks of 550–700m² across established suburbs easily accommodate 60m² granny flats with compliant setbacks. Council supports CDC approval — typically 10–15 business days. The competitive construction cost combined with strong rental demand makes Blacktown LGA one of Sydney's best granny flat investment locations.
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.
Granny flat 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
- $150,000 – $300,000+
- Typical timeline
- 4–6 months design to handover
- Approval pathway
- CDC via NSW Affordable Rental Housing SEPP (10–15 days)
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 granny flat, 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 secondary dwelling 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 secondary dwelling in Hassall Grove: 10–15 business days for CDC if the design qualifies. 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 Secondary dwelling Costs in Hassall Grove
Hassall Grove's median house price sits at $800K–$1.0M. That's the number that decides whether a granny flat stacks up financially. Build cost $150K–$260K against $370–$490/week in rental — payback period typically 7–11 years, plus capital uplift on the parent lot. 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 Secondary dwellings in Hassall Grove reveal a clear pattern — clean CDC submissions with correct setback dimensions on plan, BASIX matching the actual specification, and clear separation from the parent dwelling are clearing in 10-12 business days consistently. Sloppy lodgement adds 4-8 weeks of round-trip; clean lodgement doesn't.
Builder’s Take on Hassall Grove
Class M–H soil affects granny flat slab costs same as a main dwelling — roughly $3K–$10K uplift over standard. Not a dealbreaker but worth including in the quote. Cheapest granny flat quotes in the market usually exclude this and add it at variation.
The single most important design decision on a granny flat is natural light. 60m² feels tiny when it's dark. Good north-facing window placement, a skylight in the bathroom, and a glazed laundry door — these turn a 55m² build into something that feels 20% larger.
Hassall Grove vs Nearby Suburbs
Hassall Grove vs nearby suburbs — key metrics for building a granny flat.
| Suburb | Median Price | Typical Lot | Soil Class | GF Rental | Station |
|---|---|---|---|---|---|
| Hassall Grove2761this suburb | $800K–$1.0M | 550–700m² | Class M–H | $370–$490/week | Mount Druitt (3 km) |
| Plumpton2761 | $750K–$950K | 550–700m² | Class M–H | $370–$490/week | Mount Druitt (2 km) |
| Oakhurst2761 | $750K–$950K | 550–700m² | Class M–H | $370–$490/week | Mount Druitt (2 km) |
| Dean Park2761 | $800K–$1.0M | 550–700m² | Class M–H | $370–$490/week | 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.
Have a question about your project?
Talk to our team — free site assessment and fixed-price quote.
How It Works
From First Call to Final Key
Everything that has to be right before we touch the ground. Site visit to your Hassall Grove block to check feasibility — lot dimensions, sewer and stormwater locations, driveway access, and Blacktown City Council's setback and landscape requirements. Written feasibility report within 3 business days. Design pulls from a library of plans we've refined over years of Hassall Grove-area builds, then adapts to your specific block constraints. Faster than starting from scratch, better than buying a stock plan that doesn't suit the site.
⏱The Hassall Grove construction phase. Fixed price, programmed, supervised. Most Hassall Grove granny flats qualify for CDC — faster and simpler than DA. Buildana prepares all documentation, lodges with the certifier, and obtains the Construction Certificate. Typical turnaround: 2–3 weeks. Construction in your back yard means coordinating site access, material delivery, and trade movement around the existing house. Buildana plans the build to keep main-house disruption to a few hours per week, not constant noise and dust.
⏱The job isn't done when the site's clean; it's done when you have keys, certificates and warranties. Final inspection, Occupation Certificate, keys, and maintenance guide. Ready for tenants or family. Rental potential: $370–$490/week per week.
⏱Quality Promise
Buildana Hassall Grove granny flats: designed for your block, built to CDC standards, delivered under a fixed-price contract.
Cost Guide
| Item | Estimated Range |
|---|---|
| Studio (35m²) | $130,000 – $170,000 |
| 1-bedroom (40–45m²) | $160,000 – $200,000 |
| 2-bedroom (55m²) | $190,000 – $230,000 |
| Full 60m² maximum | $200,000 – $240,000 |
| Separate meter install | $2,000 – $6,000 |
| Landscaping and path tie-in | $3,000 – $11,000 |
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
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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 July 2025
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