
Home Extension Builder Horsley Park — More Space, Same Address
Fixed-price home extensions in Horsley Park 2175. Ground floor, second storey and rear additions. Fairfield City Council approvals managed. Free design consultation.
Quick Answer
A home extension in Horsley Park costs $150,000–$600,000+. Rear extension from $150K, second-storey addition from $300K. Buildana manages design, Fairfield City Council approvals, and construction under one fixed-price contract.
Home Extension Builder in Horsley Park
Horsley Park homeowners with Mixed-era properties are increasingly turning to home extensions to gain space without the disruption of a full move. With typical lots of 2,000m²–2ha, most Horsley Park properties can accommodate ground-floor or second-storey extensions under Fairfield City Council's planning controls. Buildana manages feasibility, design, approvals, and construction for Horsley Park extension projects under one fixed-price contract.
Buildana manages the complete home extension process in Horsley Park — 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 Horsley Park from $150K
- Fairfield City Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- Class M–H soil — structural engineering included
- Mixed-era homes assessed for extension suitability
- Connect new to existing — seamless finish
- 6-year structural warranty
- Free design consultation — near Fairfield (7 km) station

Why Extend Your Home in Horsley Park?
Horsley Park is a semi-rural suburb with large acreage lots and a mix of established homes and newer builds. The suburb is popular for custom homes on larger blocks with rural character.
Building costs in Horsley Park are around the Sydney metro average, balancing construction value with lifestyle benefits. Typical residential lots of 2,000m²–2ha in Horsley Park (2175) provide strong building envelopes across a range of project types. transport access via Fairfield (7 km). RU4 Primary Production Small Lots zoning across Horsley Park supports quality detached homes with generous setbacks and outdoor living. Class M–H reactive soil is common in Horsley Park — Buildana includes engineered slab design as standard. Median house prices of $1.5M–$2.5M mean land value supports a quality build investment, with granny flat rental potential of $380–$500/week.
Home extensions in Fairfield LGA are popular for adding living space to ageing 1960s–1980s housing stock without the cost of a full knockdown rebuild. Common projects include rear kitchen-living extensions, second-storey additions, and enclosed alfresco areas. Fairfield Council's DCP controls apply to extensions over 50m² — including FSR calculations, setback compliance, and solar access to neighbouring properties. Buildana manages structural assessment, design, approvals, and construction.
Planning Controls — Fairfield City Council
Fairfield LEP 2013 & DCP Part B2. R2 zones: FSR 0.5:1, building height 8.5m, front setback 5.5m, minimum landscaped area 40%. CDC (Complying Development Certificate) available for designs meeting the Codes SEPP — typically 10–15 business day approval.
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 Horsley Park home — existing structure, block size (2,000m²–2ha), RU4 Primary Production Small Lots 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. Fairfield City Council compliance built into the design from day one.
⏱DA through Fairfield 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 M–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 Horsley Park home — with the space you need.
⏱Quality Promise
Every Buildana home extension in Horsley Park 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 | $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 Horsley Park
Free design consultation for Horsley Park 2175. We'll assess your home, design the extension, and provide a fixed-price quote.
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