Dual Occupancy Specialists McMahons Point — Licensed Duplex Builder
NSW licensed duplex builder in McMahons Point 2060. Torrens or strata subdivision, North Sydney Council planning expertise, full contract management for investor-grade builds.
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MBA NSW0476 300 300Quick Answer
A duplex in McMahons Point costs $750,000–$1,500,000+ for dual occupancy construction. Attached duplex from $750K, detached from $1M. Buildana manages feasibility, North Sydney Council approvals, construction and subdivision under one fixed-price contract.
Duplex Builder in McMahons Point
A duplex in McMahons Point is almost never the play, because whole-core heritage coverage, tight lots and a premium harbour market favour a single home. This harbourside peninsula north of the Harbour Bridge runs Federation cottages and sandstone terraces on tight 200 to 450m2 blocks with significant harbour fall, and Heritage Conservation Areas cover the entire residential core, so a dual-occupancy is precluded on contributory lots. At a $3.2M to $6.5M market a single premium residence is the honest call.
The sandstone-dominant soil means engineered foundations are standard, and the tight lots would not support a duplex even without the heritage. I would rather give you the honest read than push the wrong product. Where the existing home carries fibro a licensed asbestos strip-out comes first.
What I would check first on your McMahons Point block: the heritage status, the tight-lot area, and whether a single premium home or a restoration is the honest scope. That decides the direction.
We build these fixed-price, licence HBL 487805C. Send me the address and I will tell you honestly what the block suits.
Buildana manages the full duplex development process in McMahons Point — from feasibility assessment and architectural design through to DA or CDC approval, and fixed-price construction to dual handover. One builder, one contract, two homes.
Read our Complete Duplex Building Guide or explore duplex developments across Sydney.
- Dual occupancy in McMahons Point from $750K
- North Sydney Council DA and CDC approvals managed
- R2 and R3 zones — established dual occ. provisions
- Minimum lot size 500m² in McMahons Point
- M — engineered dual-slab design included
- Strata or Torrens title subdivision available
- 6-year structural warranty per dwelling
- Free feasibility check — near North Sydney (1 km), McMahons Point ferry station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Whole-core heritage, tight lots
This harbourside peninsula runs Federation cottages and sandstone terraces on tight 200 to 450m2 blocks with significant harbour fall.
Conservation Areas cover the entire residential core, so a dual-occupancy is precluded on contributory lots, at a $3.2M to $6.5M market.
Engineered foundations
The sandstone-dominant soil means engineered foundations are standard, and the tight lots would not support a duplex regardless.
A single premium home or a restoration is the honest scope, with older fibro stripped under licence first.
Duplex builder in McMahons Point — key facts
- Suburb
- McMahons Point, NSW 2060
- Council / LGA
- North Sydney Council (North Sydney)
- Primary zoning
- R3 Medium
- Typical lot size
- 200–450m²
- Soil class
- M
- Median house price
- $3.2M–$6.5M
- Home era
- 1880s–1940s heritage
- Typical price range
- $750,000 – $1,500,000+
- Typical timeline
- 14–22 months design to handover
- Approval pathway
- CDC for compliant dual-occupancy, else DA
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.
Cost Guide
| Item | Estimated Range |
|---|---|
| Attached duplex (2 × 180–220m²) | $1,010,000 – $1,350,000 |
| Attached duplex (2 × 220–260m²) | $1,350,000 – $1,760,000 |
| Detached duplex (2 × 220–280m²) | $1,620,000 – $2,090,000 |
| Strata/Torrens subdivision | $20,000 – $41,000 |
| Demolition (if KDR duplex) | $24,000 – $54,000 |
| Council contributions | $14,000 – $81,000+ |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
Everything that has to be right before we touch the ground. Feasibility covers the planning side and the financial side. Yes-or-no on whether the block supports dual occupancy under North Sydney Council controls, plus indicative end values, build cost, and likely yield. The point is to kill bad sites before you spend on design — not after. Dual occupancy floor plans designed for your McMahons Point block — attached or detached configuration, vehicle access, private open space, and full North Sydney Council compliance.
⏱The McMahons Point construction phase. Fixed price, programmed, supervised. Full approval management: Statement of Environmental Effects, plans, reports, and all supporting documentation lodged with North Sydney Council or private certifier. We handle RFIs and conditions. CC follows. Construction follows a tight programme: dual slabs in one mobilisation, paired frame stand, simultaneous lock-up, then trades rotate between sides for fit-out so no day is lost waiting on availability. The schedule is engineered, not optimistic.
⏱The job isn't done when the site's clean; it's done when you have keys, certificates and warranties. Both dwellings handed over with individual Occupation Certificates. Subdivision lodged for separate titles. Separate metering installed. 6-year structural warranty per dwelling.
⏱Our Team
Oliver Alameri
Founder / Director / Builder · MPropDev · PhD Student
Ahmad Alameri
Accounts Manager
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
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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Costs, approval pathway and fixed-price contract detail for every other build type we deliver in McMahons Point 2060. North Sydney Council regulations and local controls are covered on each page.