Licensed Home Extension Builder Wiley Park
NSW licensed extension specialist. Wiley Park 2195 extensions on 1930s–1960s-era homes require structural sign-off, Class M footings, and matched connection — we engineer and document properly.
HIA Member
MBA NSW0476 300 300Quick Answer
A home extension in Wiley Park 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.
Wiley Park Home Extensions — Fixed Price
A home extension in Wiley Park puts moving money into rooms. The suburb runs established 1930s to 1960s housing on standard blocks with active residential renewal, and at a $1.0M to $1.3M median the stamp duty and selling costs of upsizing locally would fund most of a decent rear addition. Its own train station keeps the location well-connected, so owners tend to stay and build.
The older stock needs an honest structural read. Homes from the 1930s to 1960s vary a lot under the cladding, and what carries a renovation may need reinforcement before it borders a new structure, so we open up and check before quoting structure. Where fibro is present, sheeting and eaves get a licensed asbestos strip-out first. R2 and R3 zoning means the right block may also carry a duplex angle worth checking.
What I would check first on your Wiley Park house: the condition of the older framing, any asbestos in fibro, and whether an R3 lot opens a duplex option. Those set the safe scope.
We build these fixed-price, licence HBL 487805C. Get us out for a look before you talk to an agent.
Buildana manages the complete home extension process in Wiley 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 Wiley Park from $150K
- Canterbury-Bankstown Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- Class M soil — structural engineering included
- 1930s–1960s-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Wiley Park station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Rooms beat moving
The suburb runs established 1930s to 1960s housing on standard blocks with active residential renewal, and at a $1.0M to $1.3M median, upsizing locally would fund most of a rear addition.
Its own train station keeps the location well-connected, so owners tend to stay and build.
An honest structural read
Homes from the 1930s to 1960s vary a lot under the cladding, and what carries a renovation may need reinforcement before it borders a new structure, so we open up and check before quoting.
Where fibro is present, sheeting and eaves get a licensed asbestos strip-out first, and R2 and R3 zoning means the right block may carry a duplex angle.
Home extension builder in Wiley Park — key facts
- Suburb
- Wiley Park, NSW 2195
- Council / LGA
- Canterbury-Bankstown Council (Canterbury-Bankstown)
- Primary zoning
- R2 Low Density & R3 Medium Density
- Typical lot size
- 500–700m²
- Soil class
- Class M
- Median house price
- $1.0M–$1.3M
- Home era
- 1930s–1960s
- 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
We assess your Wiley Park home — existing structure, block size (500–700m²), R2 Low Density & R3 Medium Density zoning, setbacks, FSR, and your space requirements. You'll know what's achievable before spending on detailed design.
⏱Design phase covers the extension layout, junction with existing structure, window and door placement, and external finish to match your Wiley Park home's streetscape. Multiple design options presented.
⏱Documentation pack covers structural engineering for the new footings sized to match existing depths on Class M soil, BASIX 2025 compliance, shadow diagrams to neighbours' POS, hydraulic, and detailed sections through the wall-tie junction. Approval-grade, not concept-grade.
⏱Fixed-price construction of your extension. New footings engineered for Class M soil, structural connection to existing home, frame, fit-out, and finishes.
⏱Handover documentation covers the new work specifically — OC for the extension, structural certs, BASIX certificate updates, and warranty for the new section plus the junction detailing. Existing house remains under whatever warranty position applied before.
⏱Quality Promise
Every Buildana home extension in Wiley Park is delivered under a fixed-price contract — from design consultation through to defect-free handover.
Cost Guide
| Item | Estimated Range |
|---|---|
| Adding a master suite (1930s–1960s Wiley Park 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
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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
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Last updated: 1 April 2026
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Other Buildana services in Wiley Park
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Wiley Park 2195. Canterbury-Bankstown Council regulations and local controls are covered on each page.