Home Extension Queens Park — Design, Approval, Structural, Build
Full-service extensions in Queens Park 2022: structural survey of existing 1900s–1930s heritage home, design, Woollahra Municipal Council approval, engineering, weatherproofed construction, matched finish to original dwelling.
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MBA NSW0476 300 300Quick Answer
A home extension in Queens Park costs $150,000–$600,000+. Rear extension from $150K, second-storey addition from $300K. Buildana manages design, Woollahra Municipal Council approvals, and construction under one fixed-price contract.
Second-Storey & Rear Additions in Queens Park
A home extension in Queens Park is enclave-cottage work in one of the east's quiet sweet spots — Federation stock on 250 to 500m² blocks tucked between the park and the beaches. The addition grows the cottage backwards and, where the roof allows, upward, all inside the conservation areas that keep the streets looking as they do.
On blocks this tight the win is light and layout rather than raw floor area, so the design works hard to draw daylight deep into a narrow floorplate. Pre-war fabric gets lead and asbestos taken care of under licence, and party walls are assessed on the semis before anything ties in.
At a $3M to $5.5M median, an addition beats trading out of a park-and-beach position that rarely comes up — you keep the location and make the cottage finally work.
We build these fixed-price, licence HBL 487805C. Get our extension scope, with the heritage position checked, before you commit.
Buildana manages the complete home extension process in Queens 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 Queens Park from $150K
- Woollahra Municipal Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- M — structural engineering included
- 1900s–1930s heritage-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Bondi Junction (1 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Between the park and the beach
Queens Park's position keeps the enclave in deep demand, and the addition grows the cottage without surrendering it — rear reworks and attic levels designed within the conservation areas, light drawn deep into the tight floorplates.
The park frontage and Bondi proximity hold every metre you add.
Old fabric handled
On the old fabric, lead paint and asbestos are handled together under licence, done properly.
Party walls are checked on the attached stock, and the lot is priced into the job from the outset.
Home extension builder in Queens Park — key facts
- Suburb
- Queens Park, NSW 2022
- Council / LGA
- Woollahra Municipal Council (Woollahra)
- Primary zoning
- R2 Low
- Typical lot size
- 250–500m²
- Soil class
- M
- Median house price
- $3M–$5.5M
- Home era
- 1900s–1930s heritage
- 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. Extension feasibility comes down to two things: what the existing structure can carry, and what Woollahra Municipal Council will let you build. We assess both at the consultation — no point designing for a second storey if the slab can't take the load. Extension designed to integrate with your existing Queens Park home — matching roof lines, materials, and flow between old and new sections. Floor plans, elevations, and 3D renders.
⏱The Queens Park construction phase. Fixed price, programmed, supervised. All approval documentation prepared: structural drawings, BASIX, shadow analysis, stormwater, and statement of environmental effects (if DA). Lodged and managed through to Construction Certificate. Extension construction takes 3–6 months on average. Footings excavated and poured to match existing depth on Class M soil, frame stand, roof tie-in (most weather-critical phase), lock-up, then internal fit-out at the same standard as the existing house.
⏱The job isn't done when the site's clean; it's done when you have keys, certificates and warranties. Defect-free inspection, OC issued, 6-year warranty on all new work. Junction between old and new sections waterproofed and warranted. Maintenance guide covers care of new and existing areas.
⏱Quality Promise
We extend Queens Park homes with a structural engineer on every job. Second storey, rear addition, multi-room — engineered and priced upfront.
Cost Guide
| Item | Estimated Range |
|---|---|
| Small rear extension (up to 30m²) | $113,000 – $230,000 |
| Medium rear/side extension (30–60m²) | $230,000 – $400,000 |
| Large ground-floor extension (60–100m²) | $400,000 – $630,000 |
| Second-storey addition (60–120m²) | $350,000 – $690,000 |
| Wrap-around (ground + 1st floor) | $630,000+ |
| 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
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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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