Home Extension Bossley Park — Design, Approval, Structural, Build
Full-service extensions in Bossley Park 2176: structural survey of existing 1970s–1990s home, design, Fairfield City Council approval, engineering, weatherproofed construction, matched finish to original dwelling.
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A home extension in Bossley 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.
Second-Storey & Rear Additions in Bossley Park
A home extension in Bossley Park spends the suburb's spacious 550 to 750m² blocks — 1970s-90s brick with wide streets and the rear depth for the full family addition.
The era is extension-friendly: brick veneer extends cleanly at ground level, the fabric is largely clean, and the reactive pockets get footings engineered to the ground.
At the $1.0M to $1.3M median, extending keeps the established family suburb the household chose.
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 Bossley 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 Bossley 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
- 1970s–1990s-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Fairfield (4 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Space to build properly
Bossley Park's spacious blocks and wide streets give the extension room to breathe — a full-width rear wing with second living, bedrooms and alfresco fits without the yard feeling it.
The 1970s-90s brick veneer extends cleanly, keeping the structural side simple.
Clean fabric, checked footings
The era's fabric is largely clean, and the reactive pockets get footings engineered to shift with the house.
Where the ground is reactive, those footings are a line item up front.
Home extension builder in Bossley Park — key facts
- Suburb
- Bossley Park, NSW 2176
- Council / LGA
- Fairfield City Council (Fairfield City)
- Primary zoning
- R2 Low Density
- Typical lot size
- 550–750m²
- Soil class
- Class M–H
- Median house price
- $1.0M–$1.3M
- Home era
- 1970s–1990s
- 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
Everything that has to be right before we touch the ground. Walk through your Bossley Park home with our designer and structural engineer. We measure, photograph, and check the bones — footings, frame condition, roof structure. The cost estimate that follows is grounded in what we found, not a generic per-m² number. Our designer works with your existing home's layout — connecting new living areas to existing rooms, matching materials and roof pitch, and maximising natural light. You approve floor plans and 3D renders before we proceed.
⏱The Bossley Park construction phase. Fixed price, programmed, supervised. Most rear extensions in Bossley Park qualify for CDC — cleaner, faster, no neighbour notification. Second-storey additions typically need DA through Fairfield City Council because of overshadowing and privacy assessments. We choose based on your design, not on what's easier to lodge. Extension built from new footings to completion — connecting structurally to your existing home. Class M–H soil design managed. Temporary weatherproofing maintains liveability where possible.
⏱The job isn't done when the site's clean; it's done when you have keys, certificates and warranties. Walk through the completed extension, confirm finishes, collect your OC. Six-year structural warranty covers all new work including the junction with your existing home. Maintenance guide provided.
⏱Quality Promise
Bossley Park home extension specialists: we work on your home while you live in it, weatherproof the site nightly, finish clean.
Cost Guide
| Item | Estimated Range |
|---|---|
| Small rear extension (up to 30m²) | $86,000 – $170,000 |
| Medium rear/side extension (30–60m²) | $170,000 – $300,000 |
| Large ground-floor extension (60–100m²) | $300,000 – $480,000 |
| Second-storey addition (60–120m²) | $270,000 – $520,000 |
| Wrap-around (ground + 1st floor) | $480,000+ |
| Structural engineering & tie-in | Included |
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
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Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Bossley Park 2176. Fairfield City Council regulations and local controls are covered on each page.