Home Extension Builder Lansdowne — From $150K Fixed Price
Fixed-price home extensions in Lansdowne 2163. Rear extension $150K–$300K, second storey $300K–$500K. Canterbury-Bankstown Council approvals managed. Free site consult.
HIA Member
MBA NSW0476 300 300Quick Answer
A home extension in Lansdowne 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.
Extending Homes in Lansdowne
A home extension in Lansdowne works a small, settled pocket wedged between Villawood and Bass Hill — post-war homes on standard blocks at an accessible entry point. That combination is where a rear wing quietly does a lot of work: you are not paying premium money to begin with, so the space you add tends to shift both liveability and value by more than the spend.
The house has to be worth it, though. Sound brick carries the wing; a fibro home that is genuinely tired gets a rebuild comparison instead. Fibro opened up in the work is stripped out under licence before framing, and the footings are engineered to your ground.
At a $1.0M to $1.3M median, staying and building beats the stamp duty of upsizing when the bones justify it. The settled streets are exactly what you keep by extending rather than moving.
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 Lansdowne — 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 Lansdowne 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 Villawood (1 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Settled streets, real returns
Lansdowne's settled character and accessible entry make a wing genuinely additive — bedrooms, a second living space and a renewed rear at a cost the median rewards.
Before drawing anything I read the house, so the budget goes into a home that will actually return it rather than propping up a failing shell.
Fibro and footings, cleared up front
Where the work uncovers fibro, a licensed strip-out clears it before framing goes back up.
The footings are engineered to the ground beneath your slab, and both jobs sit inside the fixed price from the outset.
Home extension builder in Lansdowne — key facts
- Suburb
- Lansdowne, NSW 2163
- 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
Free consultation at your Lansdowne home. We inspect the existing structure, check Canterbury-Bankstown Council's controls, measure available space, and discuss what you need.
⏱Two design moves are usually on the table: match the existing house so the extension reads as original, or contrast with it so the new section is clearly modern. Both work — choice is aesthetic, and we'll show 3D renders of both before you commit.
⏱CDC (10–15 business days) or DA through Canterbury-Bankstown Council depending on scope. Structural engineering, BASIX, and all documentation prepared and lodged.
⏱Construction phase connects new to existing — footings, frame, roof tie-in, waterproofing at junction, internal fit-out and external finish. Staged works minimise disruption to your daily routine in Lansdowne.
⏱Final inspection focuses on the integration: paint blend, flooring transitions, ceiling height, junction waterproofing, sound transmission. The extension shouldn't feel bolted on — it should feel like the house was always meant to be this size.
⏱Quality Promise
Lansdowne home extension specialists: we work on your home while you live in it, weatherproof the site nightly, finish clean.
Cost Guide
| Item | Estimated Range |
|---|---|
| Adding a master suite (1940s–1970s Lansdowne 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
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
Explore Related Topics
Add Space to Your Lansdowne Home
Free design consultation for Lansdowne 2163. We'll assess your home, design the extension, and provide a fixed-price quote.
Start Your ProjectMore in Lansdowne
Other Buildana services in Lansdowne
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Lansdowne 2163. Canterbury-Bankstown Council regulations and local controls are covered on each page.