Licensed Custom Home Builder Collaroy — Design & Construct
NSW licensed builder (Oliver Alameri) delivering fixed-price custom homes across Collaroy 2097. Engineered slab for Class Hawkesbury Sandstone soil, BASIX 2025, 6-year structural warranty.
HIA Member
MBA NSW0476 300 300Custom Home Builder in Collaroy
A custom home in Collaroy is an oceanfront build where the coastal hazard line is a genuine planning factor, not a formality. This beach suburb runs Federation beach houses, inter-war heritage, post-war brick and contemporary on 450 to 900m2 blocks, and at a $2.8M to $8M-plus oceanfront market a designed home has to answer the coast honestly. The 2016 storm event reset the erosion baselines on the Pittwater Road beachfront, and that shapes what is buildable.
On direct beachfront a Coastal Hazard zone and the coastal erosion line govern the envelope, so the site assessment comes before the design. This is Hawkesbury Sandstone, so rock is assessed and priced honestly, and a Heritage Conservation Area covers the village. Salt exposure drives salt-grade detailing near the front. Off the beachfront a designed family home works cleanly, with the ocean outlook the reward.
What I would check first on your Collaroy block: the coastal hazard and erosion line if you are on the beachfront, the heritage status in the village, and the rock. Those set the home.
We build these fixed-price, licence HBL 487805C. Send me the address and I will tell you honestly what the coast allows.
Buildana's design-and-construct service covers everything — from initial design brief and land assessment through to council approval and fixed-price construction. One builder, one contract, one point of contact.
Read our Complete Custom Home Guide or explore custom home builds across Sydney.
- Custom homes in Collaroy from $450K
- Designed for your 450–900m² block
- Northern Beaches Council DA and CDC approvals managed
- Collaroy zoned R2 Low / R3 Medium (Manly, Dee Why, Brookvale, Mona Vale, Avalon town centres) / RU2 Rural Landscape (Ingleside, Terrey Hills, Duffys Forest, Oxford Falls) / E3/E4 Environmental on bushland fringe
- Single and double storey designs
- Hawkesbury Sandstone — engineered slab included
- 6-year structural warranty
- Free consultation — near B-Line bus to CBD (Collaroy stop) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
The coast is a real factor
This beach suburb runs Federation, inter-war, post-war and contemporary stock on 450 to 900m2 blocks.
On the Pittwater Road beachfront the 2016 storm reset the erosion baselines, and that shapes what is buildable at a $2.8M to $8M-plus market.
Hazard, heritage and rock
On direct beachfront a Coastal Hazard zone and erosion line govern the envelope, so site assessment precedes design.
This is Hawkesbury Sandstone with rock priced honestly, a Heritage Conservation Area over the village, and salt-grade detailing near the front.
Custom home builder in Collaroy — key facts
- Suburb
- Collaroy, NSW 2097
- Council / LGA
- Northern Beaches Council (Northern Beaches)
- Primary zoning
- R2 Low
- Typical lot size
- 450–900m²
- Soil class
- Hawkesbury Sandstone
- Median house price
- $2.8M–$8M+ (oceanfront)
- Home era
- 1920s–1960s heritage + premium contemporary
- Typical price range
- $450,000 – $1,200,000+
- Typical timeline
- 12–20 months design to handover
- Approval pathway
- CDC fast-track (15 business days) or DA (40–90 days)
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.
Quality Promise
Every Buildana custom home in Collaroy is designed for your block and built under a fixed-price contract — no surprises, no hidden extras.
How It Works
From First Call to Final Key
We start with a site visit or showroom meeting to talk through what you want to build on your Collaroy block. We'll review Northern Beaches Council's planning controls for 450–900m² lots with R2 Low zoning and give you a straight answer on budget and feasibility.
⏱Design starts with site analysis — sun path, prevailing breeze, neighbour overlooking, slope, view lines from each likely living area. The plan is drawn to that, not dropped onto the block. Two design options usually, sometimes three, then you pick the direction and we refine.
⏱Working drawings, structural engineering (Class Hawkesbury Sandstone soil design), BASIX certification, geotechnical report, stormwater plan and all certification documentation prepared.
⏱Most custom homes in Collaroy qualify for CDC with a 10–15 business day turnaround. If DA is required through Northern Beaches Council, we manage the full submission and respond to any requests for information. Construction Certificate follows.
⏱Construction is run from a programme, not made up week to week. Trade sequencing is locked in advance so the slab cures into a waiting frame and the frame waits for nothing. That's how a 24–40 week build actually delivers in 24–40 weeks instead of running 60+.
⏱Walk through your finished home, collect keys, and move in. OC issued, defect-free inspection completed, 6-year structural warranty, and full maintenance guide provided.
⏱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
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Last updated: 1 July 2025
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Other Buildana services in Collaroy
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Collaroy 2097. Northern Beaches Council regulations and local controls are covered on each page.