Home Extension Builder Greenacre — More Space, Same Address
Fixed-price home extensions in Greenacre 2190. Ground floor, second storey and rear additions. Canterbury-Bankstown Council approvals managed. Free design consultation.
HIA Member
MBA NSW0476 300 300Quick Answer
A home extension in Greenacre 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.
Home Extension Builder in Greenacre
Greenacre's 1950s–1970s-era homes on established blocks are ideal for extension. Many homeowners choose to add a rear living area, extra bedrooms, or a full second storey. Canterbury-Bankstown Council has specific requirements for lot coverage and setbacks — Buildana navigates these for every extension project.
Buildana manages the complete home extension process in Greenacre — 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 Greenacre from $150K
- Canterbury-Bankstown Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- Class M soil — structural engineering included
- 1950s–1970s-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Bankstown (2 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Why Extend Your Home in Greenacre?
Greenacre features wide residential blocks with an established mix of fibro and brick homes. Many properties are overdue for renewal, and the suburb's R2 zoning makes it well-suited for custom home builds and knockdown rebuilds.
Greenacre's established streetscape and median house prices of $1.0M–$1.3M reflect a premium location within Canterbury-Bankstown. Building costs sit above the metro average, offset by stronger capital growth and rental returns. Transport access via Bankstown (2 km) connects Greenacre to the wider Sydney network. 1950s–1970s-era homes in Greenacre often have good structural foundations worth building on. Extensions add living space at a fraction of the full rebuild cost. Class M soil (moderately reactive) is standard for Greenacre — Buildana includes engineered slab design in every quote.
Home extensions across Canterbury-Bankstown suit the area's character housing stock — from 1920s–1960s bungalows in Canterbury and Earlwood to post-war homes in Bankstown and Revesby. Common projects include rear living extensions, upper-floor additions, and modernising period kitchens while retaining character elements. Heritage requirements may apply in some areas. Buildana manages design, approvals, and construction.
Planning Controls — Canterbury-Bankstown Council
Canterbury-Bankstown LEP 2023 & DCP. R2 zones: FSR 0.5:1, R3 zones: FSR 0.85:1, building height 9m, front setback 5.5m. Heritage conservation provisions apply in some suburbs. CDC available for eligible designs.
Have a question about your project?
Talk to our team — free site assessment and fixed-price quote.
How It Works
From First Call to Final Key
On-site assessment of your 1950s–1970s-era home in Greenacre. We check structural condition, block dimensions (550–800m²), setback availability, and Canterbury-Bankstown Council's DCP requirements. Written feasibility and cost estimate provided.
⏱Extension designed to integrate with your existing Greenacre home — matching roof lines, materials, and flow between old and new sections. Floor plans, elevations, and 3D renders.
⏱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.
⏱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 Greenacre.
⏱Final inspection, Occupation Certificate, 6-year structural warranty. Your Greenacre home now has the space your family needs.
⏱Quality Promise
Every Buildana home extension in Greenacre is delivered under a fixed-price contract — from design consultation through to defect-free handover.
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
Cost Guide
| Item | Estimated Range |
|---|---|
| Rear ground-floor extension | $160,000 – $320,000 |
| Second-storey addition | $320,000 – $530,000 |
| Large multi-room extension | $420,000 – $630,000+ |
| Structural engineering | $3,000 – $8,000 |
| Council contributions | $2,000 – $16,000 |
| Temporary weatherproofing | $2,000 – $5,000 |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
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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
Buildana builds across greater Sydney — with deep roots in Western Sydney's Fairfield, Liverpool, Cumberland, Canterbury-Bankstown, and Blacktown LGAs.
Extend Your Home in Greenacre
Free design consultation for Greenacre 2190. We'll assess your home, design the extension, and provide a fixed-price quote.
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