Home Extension Builder Concord — From $150K Fixed Price
Fixed-price home extensions in Concord 2137. Rear extension $150K–$300K, second storey $300K–$500K. City of Canada Bay Council approvals managed. Free site consult.
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MBA NSW0476 300 300Quick Answer
A home extension in Concord costs $150,000–$600,000+. Rear extension from $150K, second-storey addition from $300K. Buildana manages design, City of Canada Bay Council approvals, and construction under one fixed-price contract.
Home Extension Builder in Concord
A home extension in Concord gets to work with some of the inner west's best domestic architecture. The stock is Federation, Tudor and Mission homes on 500 to 900m² blocks, and those are houses worth extending carefully — the wing has to respect the character out the front while adding the family living behind, because the character is a big part of what the market pays for.
The conservation streets are checked before design, the pre-war fabric sees lead paint and asbestos handled under licence, and the shale underneath is read before any structural work. The generous blocks mean a full wing goes on without cramming.
At a $2.2M to $4M median, it is the character-plus-modern-living combination that holds value — and the hospital, the oval and the schools keep families here for decades, so the wing is built for the long haul.
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 Concord — 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 Concord from $150K
- City of Canada Bay Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- M–H — structural engineering included
- 1900s–1960s-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Concord West (1 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Behind the architecture
Concord's Tudor, Mission and Federation homes deserve wings that respect them — additions matched to the character, generous family living behind, on 500 to 900m² blocks with real room.
The hospital, the oval and the schools hold families here for decades.
Fabric and ground handled
The pre-war fabric carries lead paint as well as asbestos, both handled under licence.
The shale is read before structural work begins, and all of it sits in the fixed price upfront.
Home extension builder in Concord — key facts
- Suburb
- Concord, NSW 2137
- Council / LGA
- City of Canada Bay Council (City of Canada Bay)
- Primary zoning
- R2 Low
- Typical lot size
- 500–900m²
- Soil class
- M–H
- Median house price
- $2.2M–$4M
- Home era
- 1900s–1960s
- 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 |
|---|---|
| Simple rear extension (single wall removal, no roof change) | $90,000 – $200,000 |
| Moderate extension (multiple openings, roof extended) | $200,000 – $380,000 |
| Complex extension (structural steel portals, re-roofing) | $380,000 – $600,000 |
| Second-storey tie-in (existing house re-engineered) | $350,000 – $650,000 |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
The first job on an extension is finding out what you're extending onto. Concord homes from the 1900s–1960s 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.
⏱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
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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 Concord
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Concord 2137. City of Canada Bay Council regulations and local controls are covered on each page.