Eastlakes Home Extension Builder — Live In, Build On
Buildana extends homes across Eastlakes 2018 while you stay in place. 1950s–1980s + apartments-era structure, Bayside Council rules, weatherproofing during build — all managed locally from Fairfield.
HIA Member
MBA NSW0476 300 300Quick Answer
A home extension in Eastlakes costs $150,000–$600,000+. Rear extension from $150K, second-storey addition from $300K. Buildana manages design, Bayside Council approvals, and construction under one fixed-price contract.
Eastlakes Home Extensions & Additions
A home extension in Eastlakes holds your feet on land the apartment market is busy absorbing. This inland pocket between Mascot and Pagewood runs post-war brick and mid-century flats on 350 to 650m² blocks, with heavy R3 and R4 redevelopment around the shops, so a detached house here is a shrinking asset worth improving rather than trading. At a $1.5M to $2.3M median, extending beats buying back in as a unit.
The ground is Botany Sands, well-draining sand that needs a footing design suited to it rather than a standard slab, and the airport flight-path overlays make acoustic glazing on new rooms a sensible inclusion. Blocks this size usually point the work rearward, where post-war framing extends most cost-effectively. The Lakes Golf Club and the shops anchor the pocket.
What I would check first on your Eastlakes house: the sand-based footings, the flight-path glazing, and the rear yard depth. Those set the plan.
We build these fixed-price, licence HBL 487805C. Ask us what your block can take before the towers price you in.
Buildana manages the complete home extension process in Eastlakes — 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 Eastlakes from $150K
- Bayside Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- M — structural engineering included
- 1950s–1980s + apartments-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Mascot (T8, 2 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Hold the land
This inland pocket between Mascot and Pagewood runs post-war brick and mid-century flats on 350 to 650m² blocks, with heavy R3 and R4 redevelopment around the shops.
A detached house here is a shrinking asset, so at a $1.5M to $2.3M median, extending beats buying back into the suburb as a unit.
Sand and flight path
The ground is Botany Sands, which needs a footing design suited to sand rather than a standard slab, and the airport flight-path overlays make acoustic glazing on new rooms a sensible inclusion.
Blocks this size usually send the work rearward, where post-war framing extends most cost-effectively.
Home extension builder in Eastlakes — key facts
- Suburb
- Eastlakes, NSW 2018
- Council / LGA
- Bayside Council (Bayside)
- Primary zoning
- R2 Low
- Typical lot size
- 350–650m²
- Soil class
- M
- Median house price
- $1.5M–$2.3M
- Home era
- 1950s–1980s + apartments
- 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
Free consultation at your Eastlakes home. We inspect the existing structure, check Bayside Council's controls, measure available space, and discuss what you need.
⏱Two design moves are usually on the table: match the existing house so the extension reads as original, or contrast with it so the new section is clearly modern. Both work — choice is aesthetic, and we'll show 3D renders of both before you commit.
⏱CDC (10–15 business days) or DA through Bayside Council depending on scope. Structural engineering, BASIX, and all documentation prepared and lodged.
⏱Construction phase connects new to existing — footings, frame, roof tie-in, waterproofing at junction, internal fit-out and external finish. Staged works minimise disruption to your daily routine in Eastlakes.
⏱Final inspection focuses on the integration: paint blend, flooring transitions, ceiling height, junction waterproofing, sound transmission. The extension shouldn't feel bolted on — it should feel like the house was always meant to be this size.
⏱Quality Promise
Every Buildana home extension in Eastlakes is delivered under a fixed-price contract — from design consultation through to defect-free handover.
Cost Guide
| Item | Estimated Range |
|---|---|
| Adding a master suite (1950s–1980s + apartments Eastlakes home) | $120,000 – $270,000 |
| Kitchen/living open-out to backyard | $140,000 – $330,000 |
| Second storey for teenagers/office | $270,000 – $520,000 |
| Extension + bathroom (growing family) | $190,000 – $380,000 |
| Full rear + roof tie-in (entertainer's zone) | $330,000 – $570,000 |
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
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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.
Last updated: 1 April 2026
Start a Eastlakes Home Extension
Free design consultation for Eastlakes 2018. We'll assess your home, design the extension, and provide a fixed-price quote.
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Other Buildana services in Eastlakes
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Eastlakes 2018. Bayside Council regulations and local controls are covered on each page.