Custom Home Wahroonga — Design, Approval & Build Under One Contract
Full design-and-construct service in Wahroonga 2076: site assessment, architectural design, Ku-ring-gai Council approvals, engineering, construction and handover. One builder, one price.
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MBA NSW0476 300 300Quick Answer
A custom home in Wahroonga costs $450,000–$1,200,000+ depending on size and specification. Single storey from $450K, double storey from $650K. Buildana manages design, Ku-ring-gai Council approvals and fixed-price construction.
Custom Homes Designed for Wahroonga
A custom home in Wahroonga is a premium upper North Shore build with heritage and schools driving it. Blocks of 800 to 1,500m² carry Federation streetscapes east of the Pacific Highway, and with Knox Grammar, the San hospital and one of Sydney's strongest school catchments, a designed home is a serious long-term asset at a $3.0M to $4.6M median. The generous blocks give real scope for a substantial home.
Heritage is the filter east of the highway, so a new build on a character street needs a status check and sympathetic design, while other blocks have a freer hand. The hospital precinct adds zoning complexity on the western edge worth checking. Ku-ring-gai's ground can carry reactive pockets, so a slab engineered off geotech confirms the footings.
What I would check first on your Wahroonga block: the heritage status east of the highway, any hospital-precinct zoning on the western edge, and the soil from geotech. Those set the design.
We build these fixed-price, licence HBL 487805C. Let us check your street's controls before you design.
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 Wahroonga from $450K
- Designed for your 800–1,500m² block
- Ku-ring-gai Council DA and CDC approvals managed
- Wahroonga zoned R2 Low Density
- Single and double storey designs
- Class M soil — engineered slab included
- 6-year structural warranty
- Free consultation — near Wahroonga station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Heritage and schools
Blocks of 800 to 1,500m² carry Federation streetscapes east of the Pacific Highway, and with Knox Grammar, the San hospital and one of Sydney's strongest school catchments, a designed home is a serious long-term asset.
At a $3.0M to $4.6M median, the generous blocks give real scope for a substantial home.
Filters to check
Heritage is the filter east of the highway, so a new build on a character street needs a status check and sympathetic design, while other blocks have a freer hand.
The hospital precinct adds zoning complexity on the western edge, and a slab off geotech confirms the footings on ground that can carry reactive pockets.
Custom home builder in Wahroonga — key facts
- Suburb
- Wahroonga, NSW 2076
- Council / LGA
- Ku-ring-gai Council (Ku-ring-gai)
- Primary zoning
- R2 Low Density
- Typical lot size
- 800–1,500m²
- Soil class
- Class M
- Median house price
- $3.0M–$4.6M
- Home era
- 1920s–1960s
- 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. We come to your Wahroonga 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 Wahroonga 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 Wahroonga 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 Ku-ring-gai Council (40–90 days). Wahroonga is zoned R2 Low Density. 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.
⏱Quality Promise
Our Wahroonga custom home builds run on a single contract from brief to keys. Fixed price. No variations unless you change the design.
Cost Guide
| Item | Estimated Range |
|---|---|
| Single storey (150–200m²) | $590,000 – $860,000 |
| Double storey (200–300m²) | $860,000 – $1,320,000 |
| Premium custom home (300m²+) | $1,320,000+ |
| Design and documentation | $20,000 – $53,000 |
| Site preparation | $13,000 – $40,000 |
| Landscaping and external | $20,000 – $66,000 |
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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Other Buildana services in Wahroonga
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Wahroonga 2076. Ku-ring-gai Council regulations and local controls are covered on each page.