Custom Home Builder Double Bay — From $450K Fixed Price
Fixed-price custom home construction in Double Bay 2028. One contract, one price, zero variations. Woollahra Municipal Council approved. Free consultation.
HIA Member
MBA NSW0476 300 300Building Custom Homes in Double Bay
A custom home in Double Bay is a harbourside build where heritage and deep sandstone fall both set the terms. This premium Woollahra suburb runs Federation mansions and inter-war stock on 250 to 1,000m2 blocks with substantial fall to the harbour, and Conservation Areas cover most streets. At a $4.5M to $15M market the land is exceptional, but on a contributory property the honest scope leans to restoration, with a sympathetic new home reserved for eligible lots.
This is sandstone-dominant ground, so the substructure is engineered and deep rock is priced honestly from the start, and a level-changing design captures the harbour outlook on the steeper lots. On an eligible lot the design has to answer a premium heritage streetscape in scale and materials. The Bay Street village and the harbour beach define one of Sydney's most prestigious addresses.
What I would check first on your Double Bay block: the heritage status, the rock and substructure on the harbour fall, and the streetscape controls. Those decide the job.
We build these fixed-price, licence HBL 487805C. Send me the address and I will tell you honestly whether it is a new build or a restoration.
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 Double Bay from $450K
- Designed for your 250–1,000m² block
- Woollahra Municipal Council DA and CDC approvals managed
- Double Bay zoned R2 Low / R3 Medium / R4 / B2/B4 mixed
- Single and double storey designs
- M — engineered slab included
- 6-year structural warranty
- Free consultation — near Edgecliff (1 km, ferry to Circular Quay) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Premium, and heritage-bound
This Woollahra suburb runs Federation mansions and inter-war stock on 250 to 1,000m2 blocks with substantial fall to the harbour.
Conservation Areas cover most streets, so on a contributory property the honest scope leans to restoration, at a $4.5M to $15M market.
Deep rock, harbour fall
This is sandstone-dominant ground, so the substructure is engineered and deep rock priced honestly from the start.
A level-changing design captures the harbour outlook, and on an eligible lot it answers a premium heritage streetscape.
Custom home builder in Double Bay — key facts
- Suburb
- Double Bay, NSW 2028
- Council / LGA
- Woollahra Municipal Council (Woollahra)
- Primary zoning
- R2 Low
- Typical lot size
- 250–1,000m²
- Soil class
- M
- Median house price
- $4.5M–$15M
- Home era
- 1900s–1940s + apartments
- 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
We build custom homes in Double Bay the way they should be built — one contractor, fixed price, accountability at every stage.
How It Works
From First Call to Final Key
Everything that has to be right before we touch the ground. We come to your Double Bay site or you visit our office on The Horsley Drive in Fairfield. Either way, you leave the meeting with a clear cost band, an outline timeline, and a yes/no on whether your block supports the home you have in mind. The hard yards happen here, not at design lock-in. Our designer draws up plans matched to your Double Bay block — north-facing living, compliant setbacks, garage placement, and outdoor flow. You get floor plans, elevations, and 3D renders to review before we lock in the design.
⏱The Double Bay construction phase. Fixed price, programmed, supervised. Documentation is where bad builders cut corners and good builds stay on track. Buildana commissions the borehole, instructs the engineer, prepares BASIX, and aligns hydraulic, structural, and architectural drawings before lodgement. Certifiers reject sloppy packages — ours go in clean. CDC fast-track (10–15 business days) or DA through Woollahra Municipal Council (40–90 days). Double Bay is zoned R2 Low. Construction Certificate obtained before works commence. Slab, frame, lock-up, fit-out, external works — all under fixed-price contract. Dedicated project manager on your build, weekly progress reports, and quality inspections at every critical hold point.
⏱The job isn't done when the site's clean; it's done when you have keys, certificates and warranties. OC, six-year structural warranty, two-year non-structural warranty, all manufacturer warranties on appliances and fixtures, BASIX certificate, certifier sign-offs, and maintenance schedule — all handed over in a single documentation pack. Keep it for your records and any future sale.
⏱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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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 July 2025
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Custom Home Build in Double Bay — Book a Consultation
Free consultation for Double Bay 2028. We'll discuss your brief, assess your block, and provide a realistic fixed-price budget.
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Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Double Bay 2028. Woollahra Municipal Council regulations and local controls are covered on each page.