Home Extension Potts Hill — Design, Approval, Structural, Build
Full-service extensions in Potts Hill 2143: structural survey of existing 1940s–1970s home, design, Canterbury-Bankstown Council approval, engineering, weatherproofed construction, matched finish to original dwelling.
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A home extension in Potts Hill costs $150,000–$600,000+. Rear extension from $150K, second-storey addition from $300K. Buildana manages design, Canterbury-Bankstown Council approvals, and construction under one fixed-price contract.
Potts Hill Home Extensions & Additions
A home extension in Potts Hill suits the household that likes where it lives and just needs more of it. It is a quiet, reservoir-side pocket of post-war homes on standard blocks, the sort of settled spot people are reluctant to leave — so a rear wing that adds the bedrooms and the second living space, without touching the calm, tends to beat trading up and out.
The house sets the terms. Sound brick takes the wing; a fibro home that has done its time gets a rebuild comparison on real numbers. Fibro opened up in the work is stripped out under licence before framing, and the footings are engineered to your ground so old and new stay locked together.
At a $1.0M to $1.3M median, staying and building outweighs the stamp duty of upsizing when the bones justify it. The local centres keep everyday life practical through the build.
We build these fixed-price, licence HBL 487805C. Ask us to measure what your block can hold.
Buildana manages the complete home extension process in Potts Hill — from design consultation and structural engineering through to DA or CDC approval, and fixed-price construction to handover. Extend your home without the stress.
Read our Home Extension Cost Guide 2026 or explore extension approval pathways in NSW.
- Home extensions in Potts Hill from $150K
- Canterbury-Bankstown Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- Class M soil — structural engineering included
- 1940s–1970s-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Birrong (1 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Grow it, keep the quiet
The reservoir-side calm is what makes Potts Hill worth staying in, and a rear wing lets the household grow without giving it up — bedrooms, a second living area and a renewed rear across the back.
The local centres keep the daily run practical while the work is on.
Fibro and footings, nothing hidden
Fibro exposed in the work comes out under a licensed strip-out before any new framing.
The footings are engineered to your ground, and both jobs are inside the fixed price from the outset.
Home extension builder in Potts Hill — key facts
- Suburb
- Potts Hill, NSW 2143
- Council / LGA
- Canterbury-Bankstown Council (Canterbury-Bankstown)
- Primary zoning
- R2 Low Density
- Typical lot size
- 500–700m²
- Soil class
- Class M
- Median house price
- $1.0M–$1.3M
- Home era
- 1940s–1970s
- Typical price range
- $150,000 – $600,000+
- Typical timeline
- 6–12 months design to handover
- Approval pathway
- CDC for most rear extensions, DA for second-storey
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.
How It Works
From First Call to Final Key
The first job on an extension is finding out what you're extending onto. Potts Hill homes from the 1940s–1970s were built to different standards — we open walls, check footings, verify load paths. The existing house has to carry the new work.
⏱Design follows the existing roof. A bad extension looks like a bolt-on; a good one reads as original. Matched brickwork or contrasting render (whichever the architecture calls for), tied-in roofline, continuous flooring where it should be continuous.
⏱Construction happens while you live in the house. That means weatherproofing every night, staging the works so kitchens and bathrooms don't disappear on the same week, and keeping the site clean of debris that doesn't belong in a family home.
⏱Finish is seamless. Paint match, floor match, roofline match, brick match where possible. The only way to tell the extension is new is the date on the plans.
⏱Quality Promise
Our Potts Hill home extensions connect old-to-new cleanly. Matched brickwork, tied roofline, no awkward transitions.
Cost Guide
| Item | Estimated Range |
|---|---|
| Simple rear extension (single wall removal, no roof change) | $95,000 – $210,000 |
| Moderate extension (multiple openings, roof extended) | $210,000 – $400,000 |
| Complex extension (structural steel portals, re-roofing) | $400,000 – $630,000 |
| Second-storey tie-in (existing house re-engineered) | $370,000 – $680,000 |
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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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
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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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Other Buildana services in Potts Hill
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Potts Hill 2143. Canterbury-Bankstown Council regulations and local controls are covered on each page.