Summer Hill Home Extension Builder — Live In, Build On
Buildana extends homes across Summer Hill 2130 while you stay in place. 1900s–1930s + apartments-era structure, Inner West Council rules, weatherproofing during build — all managed locally from Fairfield.
HIA Member
MBA NSW0476 300 300Quick Answer
A home extension in Summer Hill costs $150,000–$600,000+. Rear extension from $150K, second-storey addition from $300K. Buildana manages design, Inner West Council approvals, and construction under one fixed-price contract.
Summer Hill Home Extensions — Fixed Price
A home extension in Summer Hill grows Federation homes around one of the inner west's nicest little village centres. The stock sits on 200 to 500m² blocks, and the boutique strip — the greengrocers, the cafes, the flour-mill precinct — is genuinely the reason people do not leave, so the addition works backwards behind the conserved frontage and keeps all of that on foot.
On the attached semis the party walls are assessed before any structural move, and the pre-war fabric gets the lead and asbestos handled under licence. A rear rework opened onto the courtyard, with an attic level where the roof allows, is where these homes gain the most.
At a $1.9M to $3.0M median, an addition beats trading out of the village — and with both heavy rail and light rail on the doorstep, the position is hard to improve on by moving.
We build these fixed-price, licence HBL 487805C. Get our extension scope, with the heritage position checked, before you commit.
Buildana manages the complete home extension process in Summer 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 Summer Hill from $150K
- Inner West Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- M — structural engineering included
- 1900s–1930s + apartments-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Summer Hill (T2, in suburb) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
The boutique village grows
Summer Hill's Federation homes extend behind their conserved frontages — living opened onto courtyards, attic levels where the roof allows — with the boutique village strip the reason nobody leaves.
The twin-rail position holds every metre you add.
Fabric and walls handled
Before any structural move, the party walls on the attached stock are assessed.
Lead and asbestos are stripped under licence, with the figure in the fixed price up front.
Home extension builder in Summer Hill — key facts
- Suburb
- Summer Hill, NSW 2130
- Council / LGA
- Inner West Council (Inner West)
- Primary zoning
- R1/R2 General/Low
- Typical lot size
- 200–500m²
- Soil class
- M
- Median house price
- $1.9M–$3.0M
- Home era
- 1900s–1930s + apartments
- 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
On-site assessment of your 1900s–1930s + apartments-era home in Summer Hill. We check structural condition, block dimensions (200–500m²), setback availability, and Inner West Council's DCP requirements.
⏱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 Inner West Council. Full documentation including structural engineering for Class M soil, BASIX, and shadow diagrams.
⏱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 Summer Hill home now has the space your family needs.
⏱Quality Promise
Our Summer Hill home extensions connect old-to-new cleanly. Matched brickwork, tied roofline, no awkward transitions.
Cost Guide
| Item | Estimated Range |
|---|---|
| Adding a master suite (1900s–1930s + apartments Summer Hill home) | $140,000 – $290,000 |
| Kitchen/living open-out to backyard | $160,000 – $370,000 |
| Second storey for teenagers/office | $290,000 – $580,000 |
| Extension + bathroom (growing family) | $210,000 – $420,000 |
| Full rear + roof tie-in (entertainer's zone) | $370,000 – $630,000 |
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
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
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
Add Space to Your Summer Hill Home
Free design consultation for Summer Hill 2130. We'll assess your home, design the extension, and provide a fixed-price quote.
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Other Buildana services in Summer Hill
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Summer Hill 2130. Inner West Council regulations and local controls are covered on each page.