Dual Occupancy Specialists Riverview — Licensed Duplex Builder
NSW licensed duplex builder in Riverview 2066. Torrens or strata subdivision, Lane Cove Council planning expertise, full contract management for investor-grade builds.
HIA Member
MBA NSW0476 300 300Quick Answer
A duplex in Riverview costs $750,000–$1,500,000+ for dual occupancy construction. Attached duplex from $750K, detached from $1M. Buildana manages feasibility, Lane Cove Council approvals, construction and subdivision under one fixed-price contract.
Riverview Dual Occ. — Feasibility to Handover
A duplex in Riverview works on the qualifying blocks, though the premium setting shapes the decision. This elevated Lane Cove suburb above the river runs 500 to 1,200m2 blocks against a comparatively low 550m2 Lane Cove duplex minimum, so many clear it. On a $3.0M to $5.5M market, a quality Torrens-title duplex can work, but heritage covers several streets and bush-edge lots facing the river carry bushfire ratings that shape the build.
The stock is Federation mansions, inter-war heritage and contemporary, so I check the Heritage Conservation Areas first. The ground is sandstone-dominant, moderately reactive, and bush-edge blocks meet a BAL construction standard that adds cost. Older stock carries asbestos, stripped under licence.
What I would check first on your Riverview block: the heritage status, the area against 550m2, and any bushfire rating on the river-facing lots.
We build these fixed-price, licence HBL 487805C. Send me the block and I will tell you honestly what it carries.
Buildana manages the full duplex development process in Riverview — 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 Riverview from $750K
- Lane Cove Council DA and CDC approvals managed
- R2 and R3 zones — established dual occ. provisions
- Minimum lot size 550m² in Riverview
- M — engineered dual-slab design included
- Strata or Torrens title subdivision available
- 6-year structural warranty per dwelling
- Free feasibility check — near Wollstonecraft (3 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Lower minimum, premium setting
Riverview blocks run 500 to 1,200m2 against a 550m2 Lane Cove minimum, so many clear it.
At a $3.0M to $5.5M market the play is a quality duplex, weighed against a premium single home.
Heritage and bushfire
Heritage Conservation Areas cover several streets, checked first.
Bush-edge lots facing the river carry a BAL construction standard that adds cost on any dwelling.
Duplex builder in Riverview — key facts
- Suburb
- Riverview, NSW 2066
- Council / LGA
- Lane Cove Council (Lane Cove)
- Primary zoning
- R2 Low Density
- Typical lot size
- 500–1,200m²
- Soil class
- M
- Median house price
- $3.0M–$5.5M
- Home era
- 1900s–1950s
- 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.
How It Works
From First Call to Final Key
A duplex is really a feasibility problem wearing a construction outfit. Before anything else, we verify your Riverview block against Lane Cove Council's LEP — lot size, frontage, FSR, landscape area. If it doesn't stack up, you find out in a week, not after 3 months of design.
⏱Design runs dual from day one. Two dwellings, one coherent streetscape, party-wall acoustics and fire rating built into the structure rather than bolted on. The plan accommodates R2 Low Density zoning without looking like two mismatched houses sharing a fence.
⏱Approval and construction get sequenced together. Slab pours are choreographed so the trades show up once, frame up both sides, and keep rolling. Two separate meters, two separate services, but one crew, one programme.
⏱Handover is dual. Both dwellings walked at the same time, both OCs in the same issue, both titles subdivided before settlement. You leave the final inspection with the option to live in one and rent the other, or to sell both.
⏱Quality Promise
Our Riverview duplex projects run from feasibility to subdivision under one builder. Fixed price, dual handover, full compliance.
Cost Guide
| Item | Estimated Range |
|---|---|
| Standard attached duplex — base spec | $890,000 – $1,120,000 |
| Upgraded finishes (stone, ducted A/C, upgraded kitchens) | $1,120,000 – $1,420,000 |
| Premium duplex (architect design, hydronic, landscape package) | $1,420,000 – $1,830,000 |
| Luxury detached dual occupancy | $1,830,000+ |
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
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Fatima Al-Rashid
Liverpool, NSW
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Last updated: 1 July 2025
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