Home Extension Builder Waverton — Approved in 60 Days
Waverton 2060 extensions with tight approval timelines. CDC where eligible (~15 days), DA via North Sydney Council in 40–60 days. Construction 12–24 weeks depending on scope.
HIA Member
MBA NSW0476 300 300Quick Answer
A home extension in Waverton costs $150,000–$600,000+. Rear extension from $150K, second-storey addition from $300K. Buildana manages design, North Sydney Council approvals, and construction under one fixed-price contract.
Waverton Home Extensions & Additions
A home extension in Waverton is a job that uses the slope rather than fighting it. The Federation and post-war homes on 350 to 650m² blocks sit on streets that fall toward Berry's Bay, so the wing worth building is the one that captures the water glimpses on the way down and opens the living west toward them.
That fall means engineered foundations are standard rather than exceptional on the lower lots, and the HCA pockets are checked before design shapes anything. The pre-war fabric gets its lead and asbestos work done under licence throughout.
At a $3.0M to $5.0M median, a wing that works the fall changes what the home is worth — and the T1 station keeps the position effortless, so you are adding space without giving up the commute.
We build these fixed-price, licence HBL 487805C. Get our extension scope, with the fall engineered, before you commit.
Buildana manages the complete home extension process in Waverton — 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 Waverton from $150K
- North Sydney Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- M — structural engineering included
- 1900s–1960s-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Waverton station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
The fall is the feature
Waverton's western streets drop toward Berry's Bay, and the wing uses it — levels that capture the water, living opened west, engineered foundations doing the quiet work underneath.
The T1 station keeps the position effortless right through the build.
Heritage areas and fabric handled
The HCA pockets are checked before design shapes anything, so heritage leads rather than surprises.
Lead paint joins asbestos in the licensed processes, all priced into the job from the outset.
Home extension builder in Waverton — key facts
- Suburb
- Waverton, NSW 2060
- Council / LGA
- North Sydney Council (North Sydney)
- Primary zoning
- R3 Medium
- Typical lot size
- 350–650m²
- Soil class
- M
- Median house price
- $3.0M–$5.0M
- Home era
- 1900s–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
The first job on an extension is finding out what you're extending onto. Waverton homes from the 1900s–1960s were built to different standards — we open walls, check footings, verify load paths. The existing house has to carry the new work.
⏱Design follows the existing roof. A bad extension looks like a bolt-on; a good one reads as original. Matched brickwork or contrasting render (whichever the architecture calls for), tied-in roofline, continuous flooring where it should be continuous.
⏱Construction happens while you live in the house. That means weatherproofing every night, staging the works so kitchens and bathrooms don't disappear on the same week, and keeping the site clean of debris that doesn't belong in a family home.
⏱Finish is seamless. Paint match, floor match, roofline match, brick match where possible. The only way to tell the extension is new is the date on the plans.
⏱Quality Promise
Waverton home extension specialists: we work on your home while you live in it, weatherproof the site nightly, finish clean.
Cost Guide
| Item | Estimated Range |
|---|---|
| Simple rear extension (single wall removal, no roof change) | $115,000 – $260,000 |
| Moderate extension (multiple openings, roof extended) | $260,000 – $490,000 |
| Complex extension (structural steel portals, re-roofing) | $490,000 – $770,000 |
| Second-storey tie-in (existing house re-engineered) | $450,000 – $830,000 |
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
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
Explore Related Topics
Waverton Extension — Free Consultation
Free design consultation for Waverton 2060. We'll assess your home, design the extension, and provide a fixed-price quote.
Start Your ProjectMore in Waverton
Other Buildana services in Waverton
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Waverton 2060. North Sydney Council regulations and local controls are covered on each page.