
Licensed Granny Flat Specialist Peakhurst
NSW licensed builder delivering SEPP-compliant granny flats across Peakhurst 2210. BASIX, engineered slab (Class M), full certifier sign-off and 6-year structural warranty.
Quick Answer
A granny flat in Peakhurst 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, Georges River Council approval and fixed-price construction.
Peakhurst Secondary Dwellings
Peakhurst is a solid residential suburb west of Mortdale and Oatley — 1950s to 1990s brick on 500 to 700m² blocks, with a shopping centre, schools and Mortdale station close by. Those good-sized blocks make it a workable granny flat suburb, with the Georges River foreshore adding a wrinkle on the lots near the water.
Most blocks here have room for a proper second dwelling with its own yard. Along Forest Road the zoning lifts to R3, and on the foreshore lots near the river the Foreshore Building Line keeps building back from the water.
The ground is the shale-sandstone interface with river alluvial on the foreshore, so the footing is designed off a geotech — clay, rock or alluvial depending on where your block sits.
Fixed price with the zoning, foreshore and soil all checked first. Licence HBL 487805C.
Buildana manages the full granny flat process in Peakhurst — 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 Peakhurst from $150K
- CDC fast-track approval (10–15 business days)
- 400–700m² typical (Hurstville/Kogarah/Beverly Hills/Penshurst/Mortdale/Carlton/Kingsgrove/Allawah); 600–1,200m² premium foreshore (Oatley/Lugarno/Peakhurst Heights/Connells Point) blocks — most qualify for 60m² granny flat
- Peakhurst zoned R2 Low Density / R3 Medium Density on station precincts / R4 (Hurstville CBD/Kogarah CBD high-rise + Beverly Hills/Penshurst/Mortdale precincts)
- Fixed-price contract — design to handover
- M — engineered slab included
- Rental yield $500–$720/week (St George Hospital + Kogarah medical precinct staff demand) in Peakhurst
- Free site assessment — near Mortdale (1 km) station

Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Workable blocks, foreshore to watch
Peakhurst's 500 to 700m² blocks give you room to place a second dwelling well, and being close to Mortdale station and the local shops, the demand is steady. On the R2 residential streets it's a straightforward build.
On the lots near the Georges River foreshore, the Foreshore Building Line keeps building back from the water, and there may be a referral. I check whether your block is affected before promising a layout.
Interface ground, tested
The ground runs from shale-sandstone interface on the higher ground to river alluvial near the foreshore, so the footing is designed off a geotech for what your block actually has — clay, rock or alluvial. That's what keeps the fixed price stable.
A tidy flat here lets steadily off Mortdale station, though I won't quote a weekly figure I can't back.
Granny flat builder in Peakhurst — key facts
- Suburb
- Peakhurst, NSW 2210
- Council / LGA
- Georges River Council (Georges River Council)
- Primary zoning
- R2 Low Density
- Typical lot size
- 400–700m² typical (Hurstville/Kogarah/Beverly Hills/Penshurst/Mortdale/Carlton/Kingsgrove/Allawah); 600–1,200m² premium foreshore (Oatley/Lugarno/Peakhurst Heights/Connells Point)
- Soil class
- M
- Median house price
- $1.5M–$2.4M typical; $2.0M–$3.5M Oatley/Lugarno/Peakhurst Heights premium foreshore; $3.0M–$8.0M+ direct waterfront
- Home era
- 1950s–1990s brick veneer
- 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)
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 |
|---|---|
| Rental income model (Peakhurst 1-bed) | $180,000 – $230,000 |
| Family member (dependent living) | $200,000 – $260,000 |
| Teenager retreat / adult child | $170,000 – $220,000 |
| Home office / short-stay | $160,000 – $210,000 |
| Future main dwelling (build granny first, big house later) | $210,000 – $270,000 |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
Free on-site assessment of your Peakhurst property. We measure setbacks, check existing services, assess access, and confirm your 400–700m² typical (Hurstville/Kogarah/Beverly Hills/Penshurst/Mortdale/Carlton/Kingsgrove/Allawah); 600–1,200m² premium foreshore (Oatley/Lugarno/Peakhurst Heights/Connells Point) block meets Georges River Council's requirements for a secondary dwelling.
⏱60m² sounds tight on paper but designs well — high ceilings, good cross-ventilation, smart storage, and proper bedroom proportions make a 2-bed feel generous. We design for daily liveability, not just floor plan compliance.
⏱CDC fast-track through a private certifier — typically approved in 10–15 business days. Peakhurst is zoned R2 Low Density.
⏱Your granny flat is built from slab to keys in a single programme. Engineered slab for Class M soil, frame, lock-up, fit-out, painting, flooring, and external works.
⏱Defect-free inspection means we don't hand over a list to chase — every snag is fixed before keys move. Final clean, electrical and plumbing tested, smoke alarms certified, BASIX commissioning verified.
⏱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 July 2025
Peakhurst Granny Flat — Free Site Check
Free site assessment for Peakhurst 2210. We'll check your block, recommend the best design, and provide a fixed-price quote.
Start Your ProjectMore in Peakhurst
Other Buildana services in Peakhurst
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Peakhurst 2210. Georges River Council regulations and local controls are covered on each page.