
The Spit Custom Home Builder — Local to the Job
Buildana builds custom homes in The Spit 2088 from our Fairfield office. We know Mosman Council's controls, the Class M soil, and the streets. Free consultation on your block.
Quick Answer
A custom home in The Spit costs $450,000–$1,200,000+ depending on size and specification. Single storey from $450K, double storey from $650K. Buildana manages design, Mosman Council approvals and fixed-price construction.
The Spit Home Builds — Made to Your Brief
A custom home builder at The Spit is working the harbour fall at the southern end of the Spit Bridge, and rock is the first fact. Federation mansions, inter-war heritage and contemporary harbour-fall homes sit on generous 600 to 1,500m² blocks that drop hard to Middle Harbour, with deep rock excavation typical and Heritage Conservation Areas over most older streets. The market runs $4.5M to $10M, and the draw is the Middle Harbour outlook and the boating access the location gives you.
The defining work is the sandstone fall on a big block. The design steps down toward the water and Pearl Bay, which means serious excavation, retaining and a suspended structure to reach the outlook, all engineered off a proper geotech report because the rock is deep. The Northern Beaches sit across the Spit Bridge, and the position at the neck of Middle Harbour is what makes this address. Get the rock and the heritage understood early and the payoff is a large harbour-fall block with a protected outlook.
What I would check first on a The Spit block: the heritage status, the fall to Middle Harbour, and how deep the rock runs. Those three set the budget.
We build to the standard the address demands, fixed-price, licence HBL 487805C. Send us the address for an honest read on the heritage, the fall and the rock.
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 The Spit from $450K
- Designed for your 600–1,500m² block
- Mosman Council DA and CDC approvals managed
- The Spit zoned R2 Low Density / R3 Medium pockets
- Single and double storey designs
- M — engineered slab included
- 6-year structural warranty
- Free consultation — near North Sydney (7 km) station

Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Deep rock on a harbour fall
The Spit sits on deep sandstone and the blocks fall hard to Middle Harbour, so significant rock excavation is typical. On a build of this size that is real money and it belongs in the feasibility from day one. We get the rock investigated before quoting, because a number off a plan on a fall block like this is a guess that hurts.
Worked properly the fall is the opportunity. The house steps down toward Pearl Bay and Middle Harbour and opens to the outlook on every main level.
Generous blocks, heritage streets
At 600 to 1,500m² these are substantial blocks, and most older streets sit in Conservation Areas, so we check the heritage status first and design new work that holds its own beside the Federation mansions.
Send us the address and we will read the heritage, the fall and the rock together, and tell you what the block can carry and what a home of this kind costs at the Spit.
Custom home builder in The Spit — key facts
- Suburb
- The Spit, NSW 2088
- Council / LGA
- Mosman Council (Mosman)
- Primary zoning
- R2 Low Density
- Typical lot size
- 600–1,500m²
- Soil class
- M
- Median house price
- $4.5M–$10M
- Home era
- 1900s–1950s heritage
- 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.
How It Works
From First Call to Final Key
Everything that has to be right before we touch the ground. Book a free consultation at our Western Sydney showroom or on your The Spit block. We assess the site, walk through your brief, and outline a realistic budget and timeline. No obligation, no sales pressure. We design for The Spit's climate and your 600–1,500m² block: cross-ventilation, eaves sized for summer sun angles, living rooms positioned for winter light. Functional first, then we work on the aesthetic. Material palette and finishes locked in alongside the plan, not as an afterthought.
⏱The The Spit construction phase. Fixed price, programmed, supervised. Full documentation pack: structural engineering for Class M soil, BASIX Certificate, geotechnical testing, stormwater design, and all drawings Mosman Council and your certifier need. Nothing left to chance. Approval pathway gets chosen at design stage, not after. CDC is faster but constrains the design envelope; DA gives flexibility but adds time. Buildana flags the trade-off early so you decide which side of that line you want to be on for your The Spit build. Fixed-price build from engineered slab to keys. Weekly milestone updates from your dedicated project manager. Quality inspections at every stage.
⏱The job isn't done when the site's clean; it's done when you have keys, certificates and warranties. Defect-free handover inspection with you on site. Occupation Certificate, 6-year structural warranty, appliance manuals, maintenance schedule, and the keys to your new The Spit home.
⏱Quality Promise
Every Buildana custom home in The Spit is designed for your block and built under a fixed-price contract — no surprises, no hidden extras.
Cost Guide
| Item | Estimated Range |
|---|---|
| Single storey (150–200m²) | $630,000 – $910,000 |
| Double storey (200–300m²) | $910,000 – $1,400,000 |
| Premium custom home (300m²+) | $1,400,000+ |
| Design and documentation | $21,000 – $56,000 |
| Site preparation | $14,000 – $42,000 |
| Landscaping and external | $21,000 – $70,000 |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
Our Team
Oliver Alameri
Founder / Director / Builder · MPropDev · PhD Student
Ahmad Alameri
Accounts Manager
Claire Wendell
Project Manager
Estimate Your Build Cost
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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
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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Costs, approval pathway and fixed-price contract detail for every other build type we deliver in The Spit 2088. Mosman Council regulations and local controls are covered on each page.