Home Extension Builder Austral — More Space, Same Address
Fixed-price home extensions in Austral 2179. Ground floor, second storey and rear additions. Liverpool City Council approvals managed. Free design consultation.
HIA Member
MBA NSW0476 300 300Quick Answer
A home extension in Austral costs $150,000–$600,000+. Rear extension from $150K, second-storey addition from $300K. Buildana manages design, Liverpool City Council approvals, and construction under one fixed-price contract.
Home Extension Builder in Austral
Austral homeowners with 2015–present-era properties are increasingly turning to home extensions to gain space without the disruption of a full move. With typical lots of 300–450m², most Austral properties can accommodate ground-floor or second-storey extensions under Liverpool City Council's planning controls. Buildana manages feasibility, design, approvals, and construction for Austral extension projects under one fixed-price contract.
Buildana manages the complete home extension process in Austral — 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 Austral from $150K
- Liverpool City Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- Class H soil — structural engineering included
- 2015–present-era homes assessed for extension suitability
- Connect new to existing — seamless finish
- 6-year structural warranty
- Free design consultation — near Leppington (2 km) station
Why Extend Your Home in Austral?
Austral is a rapidly developing growth suburb with major new land releases and proximity to Leppington station. Custom home builds on newly registered lots are in strong demand.
Building costs in Austral sit below the Sydney metro average, making it an attractive location for value-conscious homeowners and investors. Typical residential lots of 300–450m² in Austral (2179) provide strong building envelopes across a range of project types. transport access via Leppington (2 km). R2 Low Density zoning across Austral supports quality detached homes with generous setbacks and outdoor living. Class H reactive soil is common in Austral — Buildana includes engineered slab design as standard. Median house prices of $800K–$1.0M mean land value supports a quality build investment, with granny flat rental potential of $380–$500/week.
Home extensions in Liverpool LGA suit the area's 1980s–2000s housing stock, many of which have spacious floor plans that can be further enhanced. Common extension projects include open-plan kitchen-living additions, master suite wings, and covered outdoor entertaining areas. Liverpool Council requires DA for extensions over 50m² or structural second-storey additions. Buildana manages structural assessment, design, approval, and construction under one contract.
Planning Controls — Liverpool City Council
Liverpool LEP 2008 & DCP Part 01. R2 zones: FSR 0.5:1, R3 zones: FSR 0.75:1, building height 9m, front setback 6m. Secondary dwellings under the Affordable Rental Housing SEPP. CDC available for compliant 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
We assess your Austral home — existing structure, block size (300–450m²), R2 Low Density zoning, setbacks, FSR, and your space requirements. You'll know what's achievable before spending on detailed design.
⏱Extension designed to complement your existing home — floor plan, elevations, structural connection details. Liverpool City Council compliance built into the design from day one.
⏱DA through Liverpool City Council (40–90 days) or CDC (10–15 business days). Construction Certificate obtained before works commence. Buildana manages all submissions.
⏱Extension built with minimal disruption — new footings (Class H soil), frame, connection to existing dwelling, fit-out. Weekly updates from your project manager.
⏱Defect-free handover with seamless connection between old and new. 6-year structural warranty. Your Austral home — with the space you need.
⏱Quality Promise
Every Buildana home extension in Austral is delivered under a fixed-price contract — from design consultation through to defect-free handover.
Our Team
Oliver Alameri
Founder / Director / Builder
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 | $140,000 – $270,000 |
| Second-storey addition | $270,000 – $450,000 |
| Large multi-room extension | $360,000 – $540,000+ |
| Structural engineering | $3,000 – $7,000 |
| Council contributions | $2,000 – $14,000 |
| 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 Austral
Free design consultation for Austral 2179. We'll assess your home, design the extension, and provide a fixed-price quote.
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