Licensed Home Extension Builder Terrey Hills
NSW licensed extension specialist. Terrey Hills 2084 extensions on 1970s–1990s rural + premium contemporary homesteads-era homes require structural sign-off, Class Hawkesbury Sandstone footings, and matched connection — we engineer and document properly.
HIA Member
MBA NSW0476 300 300Terrey Hills Home Extensions — Fixed Price
A home extension in Terrey Hills is acreage work at the bush gateway — one to five-plus hectares of RU2 where BAL ratings from BAL-29 to flame zone lead every design and the pavilion wing is sited to the land.
The rural homes and contemporary homesteads are assessed honestly, rural services are scoped with the build, and the sandstone is read before excavation.
At the $3.5M to $8M+ acreage market, the extension protects a holding the district rarely offers twice.
We build these fixed-price, licence HBL 487805C. Walk us over the acreage and we will show you where the wing wants to sit.
Buildana manages the complete home extension process in Terrey Hills — 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 Terrey Hills from $150K
- Northern Beaches Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- Hawkesbury Sandstone — structural engineering included
- 1970s–1990s rural + premium contemporary homesteads-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Bus to Mona Vale (8 km) / St Ives (3 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Gateway acreage, bush rules
Terrey Hills sits against Ku-ring-gai Chase, and the BAL assessment leads every extension — glazing, cladding, decks and subfloor all specified to the rating.
The holdings take pavilion wings and guest domains at a scale suburbia cannot match.
Structures and services read
Each existing building is assessed honestly before the addition ties in, and septic, water and access are scoped with the build.
The rural services carry real cost, and it sits in the quote from the start.
Home extension builder in Terrey Hills — key facts
- Suburb
- Terrey Hills, NSW 2084
- Council / LGA
- Northern Beaches Council (Northern Beaches)
- Primary zoning
- R2 Low
- Typical lot size
- 1–5ha+ acreage (RU2)
- Soil class
- Hawkesbury Sandstone
- Median house price
- $3.5M–$8M+ acreage
- Home era
- 1970s–1990s rural + premium contemporary homesteads
- 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.
Last updated: 1 April 2026
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