Home Extension Waverley — Design, Approval, Structural, Build
Full-service extensions in Waverley 2024: structural survey of existing 1880s–1930s heritage home, design, Waverley Council approval, engineering, weatherproofed construction, matched finish to original dwelling.
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MBA NSW0476 300 300Quick Answer
A home extension in Waverley costs $150,000–$600,000+. Rear extension from $150K, second-storey addition from $300K. Buildana manages design, Waverley Council approvals, and construction under one fixed-price contract.
Second-Storey & Rear Additions in Waverley
A home extension in Waverley is heritage-terrace work in the pocket between the Junction and the beaches. The stock is 1880s to 1930s terraces and semis on 200 to 500m² blocks, so the addition goes backwards with craft under the conservation areas — the frontage stays, and the rear becomes the light-filled living the original never had.
On attached stock the party walls are assessed before any structural move, and the oldest fabric gets licensed lead and asbestos handling. A rework opened to the courtyard, sometimes with an attic level in the roof form, is where these homes gain the most.
At a $2.5M to $5M median, an addition beats trading out of a walk-everywhere position — the Junction one way, the beaches the other, both on foot.
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 Waverley — 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 Waverley from $150K
- Waverley Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- M — structural engineering included
- 1880s–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
Backwards with craft
Waverley's terraces and semis extend backwards — rear reworks opened to courtyards, attic levels within the roof form — designed precisely under the conservation areas, with the Junction and beaches both on foot.
The walk-everywhere position holds every metre you add.
Old fabric handled
Party walls are assessed before any structural move, so nothing surprises the build.
Both lead paint and asbestos are handled as licensed processes, and all of it is priced into the job from the outset.
Home extension builder in Waverley — key facts
- Suburb
- Waverley, NSW 2024
- Council / LGA
- Waverley Council (Waverley)
- Primary zoning
- R2 Low
- Typical lot size
- 200–500m²
- Soil class
- M
- Median house price
- $2.5M–$5M
- Home era
- 1880s–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
We assess your Waverley home — existing structure, block size (200–500m²), R2 Low 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 Waverley 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
Waverley home extension specialists: we work on your home while you live in it, weatherproof the site nightly, finish clean.
Cost Guide
| Item | Estimated Range |
|---|---|
| Adding a master suite (1880s–1930s heritage Waverley home) | $150,000 – $330,000 |
| Kitchen/living open-out to backyard | $180,000 – $410,000 |
| Second storey for teenagers/office | $330,000 – $650,000 |
| Extension + bathroom (growing family) | $240,000 – $470,000 |
| Full rear + roof tie-in (entertainer's zone) | $410,000 – $710,000 |
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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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
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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.
Waverley Extension — Free Consultation
Free design consultation for Waverley 2024. We'll assess your home, design the extension, and provide a fixed-price quote.
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Other Buildana services in Waverley
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Waverley 2024. Waverley Council regulations and local controls are covered on each page.