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Home Extension Builder Tamarama — From $150K Fixed Price

Fixed-price home extensions in Tamarama 2026. Rear extension $150K–$300K, second storey $300K–$500K. Waverley Council approvals managed. Free site consult.

Based in Fairfield, Western Sydney5.0 Google RatingLicensed & Insured (LIC 487805C)HIA Member — Buildana Custom Home Builders SydneyHIA MemberMaster Builders Association NSW Member — BuildanaMBA NSW0476 300 300
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Quick Answer

A home extension in Tamarama 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.

Extending Homes in Tamarama

A home extension in Tamarama is precision work in the smallest beach suburb in Sydney. It is only a handful of streets, so every property is genuinely scarce, and that scarcity underwrites the spend — an addition here is designed exactly within the conservation areas, because there is neither the land nor the tolerance for anything loose.

The work captures the beach outlook down the fall wherever the envelope allows, in salt-grade materials that stand up to the exposure, with the pre-war fabric handled under licence. Every metre has to earn its place.

At a $4M to $15M-plus median, exactness is simply what the enclave rewards — in a suburb this tightly held, careful work holds its value and careless work stands out.

We build these fixed-price, licence HBL 487805C. Get our extension scope, with heritage and fall resolved, before you commit.

Buildana manages the complete home extension process in Tamarama — 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 Tamarama from $150K
  • Waverley Council DA and CDC approvals managed
  • Ground floor, rear and second-storey additions
  • M — structural engineering included
  • 1900s–1940s-era homes assessed for extension suitability
  • Connect new to existing — clean, matched finish
  • 6-year structural warranty
  • Free design consultation — near Bondi Junction (3 km) station
Rear extension on a 1900s–1940s home in Tamarama
OA

Reviewed by Oliver Alameri

Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010

Scarcity rewards exactness

Tamarama's handful of streets make every property scarce, and the addition grows one of the few — designed exactly within the conservation areas, the beach outlook captured down the fall, every metre earning its place.

The enclave premium pays for that discipline.

Fall, salt and fabric

The substantial fall brings engineering in early, and salt-grade materials handle the exposure.

The pre-war hazards run as licensed processes, all priced into the job from the outset.

Home extension builder in Tamarama — key facts

Suburb
Tamarama, NSW 2026
Council / LGA
Waverley Council (Waverley)
Primary zoning
R2 Low
Typical lot size
200–600m²
Soil class
M
Median house price
$4M–$15M+
Home era
1900s–1940s
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.

Existing structure assessed for load path, timber condition, footing capacity
New portal frames or steel beams engineered to AS 4100 for spanning openings
Slab or footing for extension engineered for Class M soil
Tied-in wall flashing, DPC continuity, and roof junction detail engineered
Acoustic separation between extended and existing zones where program requires
BASIX re-calculated for the entire combined envelope — not just the new portion
Waverley Council setback, height and FSR checked against current DCP (often stricter than when original house built)
Temporary weatherproofing plan — nightly make-good during construction

How It Works

From First Call to Final Key

The first job on an extension is finding out what you're extending onto. Tamarama homes from the 1900s–1940s 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

Buildana's Tamarama home extension process: assess the existing structure, design the addition, approve, build. Fixed price throughout.

Fixed-price extension constructionNCC 2025 and BASIX compliantFull Waverley Council complianceMatched old-to-new connectionWeekly progress updates6-year structural warranty

Cost Guide

ItemEstimated Range
Simple rear extension (single wall removal, no roof change)$131,000 – $290,000
Moderate extension (multiple openings, roof extended)$290,000 – $550,000
Complex extension (structural steel portals, re-roofing)$550,000 – $870,000
Second-storey tie-in (existing house re-engineered)$510,000 – $940,000

Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.

Our Team

OA

Oliver Alameri

Founder / Director / Builder · MPropDev · PhD Student

AA

Ahmad Alameri

Accounts Manager

CW

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

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Liverpool, NSW

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Areas We Serve

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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.

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Free design consultation for Tamarama 2026. We'll assess your home, design the extension, and provide a fixed-price quote.

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