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Custom Home Builder Frenchs Forest — Start in 12 Weeks

Frenchs Forest 2086 custom homes with CDC fast-track (15 business days) or Northern Beaches Council DA. Programmed build, weekly milestones, 24–40 week construction.

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 custom home in Frenchs Forest costs $450,000–$1,200,000+ depending on size and specification. Single storey from $450K, double storey from $650K. Buildana manages design, Northern Beaches Council approvals and fixed-price construction.

Frenchs Forest Custom Home Construction

A custom home in Frenchs Forest is a bushland-fringe family build in a suburb reshaped by the Northern Beaches Hospital. The streets run 1960s to 1980s brick on 600 to 900m2 blocks with sandstone topography, and at a $2.2M to $3.4M market a designed replacement is a strong play in a green, well-serviced setting. The hospital, which opened in 2018, drives steady medical-staff demand across the area.

This is Hawkesbury Sandstone, so rock excavation runs $40K to $120K on many sites and is priced honestly up front. Bushland-fringe lots carry a BAL rating from 12.5 up to 29, so the construction spec answers the bushfire risk where it applies. The generous blocks open single or double-storey family designs, close to Forest High School and the Forest Way shops.

What I would check first on your Frenchs Forest block: the rock and substructure, any BAL rating on the bush edge, and the building envelope. Those set the home.

We build these fixed-price, licence HBL 487805C. Bring us your block and brief and we will draw it.

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 Frenchs Forest from $450K
  • Designed for your 600–900m² block
  • Northern Beaches Council DA and CDC approvals managed
  • Frenchs Forest 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 (Forest Way interchange) station
Frenchs Forest custom home — fixed-price design and construct by Buildana
OA

Reviewed by Oliver Alameri

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

Green and well-serviced

The streets run 1960s to 1980s brick on 600 to 900m2 blocks with sandstone topography.

At a $2.2M to $3.4M market a designed replacement is a strong play, with the Northern Beaches Hospital driving steady demand.

Rock and BAL

This is Hawkesbury Sandstone, so rock excavation runs $40K to $120K on many sites and is priced honestly up front.

Bushland-fringe lots carry a BAL rating up to 29, so the spec answers the bushfire risk where it applies.

Custom home builder in Frenchs Forest — key facts

Suburb
Frenchs Forest, NSW 2086
Council / LGA
Northern Beaches Council (Northern Beaches)
Primary zoning
R2 Low
Typical lot size
600–900m²
Soil class
Hawkesbury Sandstone
Median house price
$2.2M–$3.4M
Home era
1960s–1980s
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.

Engineered raft or waffle slab designed for Class Hawkesbury Sandstone soil
Structural steel and LVL beam computations to AS 1684 and AS 4100
NCC 2025 compliance with 7-star NatHERS thermal modelling
BASIX 2025 thermal, water and energy targets — documented and certified
Wind loading category assessed for Frenchs Forest's exposure (TC2/TC2.5)
Stormwater design to AS/NZS 3500.3 with OSD where required
Northern Beaches Council DCP envelope check — FSR, height, setbacks, landscaped area
WaterMark-certified plumbing fixtures and AS 3500 compliant rough-in
Electrical to AS/NZS 3000 with dedicated circuits and surge protection
Final occupation certificate issued by accredited Private Certifier

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 Frenchs Forest block. We'll review Northern Beaches Council's planning controls for 600–900m² 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 Frenchs Forest 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.

Quality Promise

We build custom homes in Frenchs Forest the way they should be built — one contractor, fixed price, accountability at every stage.

Fixed-price design and constructDesigned for your specific blockNCC 2025 and BASIX compliantFull Northern Beaches Council complianceWeekly progress updates6-year structural warranty

Cost Guide

ItemEstimated Range
Entry-level single storey$500,000 – $670,000
Mid-range double storey$780,000 – $1,060,000
Architectural custom build$1,060,000 – $1,570,000
Luxury / high-spec custom$1,570,000+
Class Hawkesbury Sandstone slab uplift$6,000 – $28,000

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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