Bass Hill Home Extension Builder — Live In, Build On
Buildana extends homes across Bass Hill 2197 while you stay in place. 1960s–1980s-era structure, Canterbury-Bankstown Council rules, weatherproofing during build — all managed locally from Fairfield.
HIA Member
MBA NSW0476 300 300Quick Answer
A home extension in Bass 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.
Bass Hill Home Extensions — Fixed Price
A home extension in Bass Hill is one of the more straightforward maths problems in Sydney. Houses here are 1960s–1980s stock on 500–700m² blocks — real backyard depth — and the median sits around $1.0M–$1.25M, so the cost of selling, buying bigger and paying stamp duty often lands within reach of a decent rear extension anyway. Except one path leaves you in the same street with the same neighbours and a bigger house.
Most of that era is brick veneer, which suits going out better than going up — the frames weren't designed for a second storey, and steel reinforcement eats the budget fast. With this much block, you rarely need to. A rear family room, extra bedroom and new kitchen line across the back is the standard play near Bass Hill Plaza. Get a site assessment before you commit either way.
Buildana manages the complete home extension process in Bass 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 Bass Hill from $150K
- Canterbury-Bankstown Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- Class M soil — structural engineering included
- 1960s–1980s-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Bankstown (3 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
The straightforward maths
Bass Hill's 500 to 700m² blocks and $1.0M to $1.25M median make the equation plain — the friction cost of upsizing lands within reach of a full rear extension, and one path leaves you in the same street with a bigger house.
The standard play near the Plaza: family room, extra bedroom and new kitchen line across the back.
Out beats up on this era
The 1960s-80s brick veneer suits going out — the frames were not designed for a second storey and steel eats the budget fast. With this much block, you rarely need to go up.
The footings are engineered to the ground, priced upfront.
Home extension builder in Bass Hill — key facts
- Suburb
- Bass Hill, NSW 2197
- 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–$1.25M
- Home era
- 1960s–1980s
- 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.
Cost Guide
| Item | Estimated Range |
|---|---|
| Single-room addition (bedroom/study) | $63,000 – $150,000 |
| Kitchen/living extension | $160,000 – $370,000 |
| Master suite + ensuite addition | $140,000 – $290,000 |
| Second storey (full or partial) | $290,000 – $580,000 |
| Multi-room ground floor wrap | $370,000 – $630,000 |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
On-site assessment of your 1960s–1980s-era home in Bass Hill. We check structural condition, block dimensions (500–700m²), setback availability, and Canterbury-Bankstown Council's DCP requirements. Written feasibility and cost estimate provided.
⏱Designing an extension is half about the new space and half about how it joins the old one. Doorway position, ceiling height transition, floor level matching, light wells — the junction makes or breaks how the finished home feels.
⏱We lodge your extension approval — CDC for eligible designs or DA through Canterbury-Bankstown Council. Full documentation including structural engineering for Class M soil, BASIX, and shadow diagrams. CC issued before works start.
⏱For ground-floor rear extensions you usually stay in the house during the build, with temporary weatherproofing at the junction wall until the new section is locked up. Second-storey additions need a 4–8 week relocation during the roof-off and frame-up phase.
⏱Final inspection, Occupation Certificate, 6-year structural warranty. Your Bass Hill home now has the space your family needs.
⏱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
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