Subdivision-Based Duplex Product — Duplex and Dual Occupancy | Building Solution Australia

Concept PlanClass 1a — Dual Occupancy

Subdivision-Based Duplex Product

Designed for subdivision from day one

300 floor area6 bedrooms4 bathrooms2 car spaces2 storeys

Concept Plan — this floor plan is for illustrative purposes only. It does not represent an approved design. Subject to design development, engineering, and planning approval.

A duplex product designed from the outset for Torrens title subdivision — two separate lots, two separate dwellings, two separate titles. BSA manages the design, approval, construction, and subdivision process as an integrated package.

Floor Plan

Concept Plan

Two dwellings designed for separate Torrens title lots. Each dwelling: three bedrooms, two bathrooms, open-plan living, single garage. Separate entries, services, and outdoor spaces. Dimensions indicative only.

Concept Plan — indicative layout only, subject to design development and approval

Concept Plan — indicative layout only, subject to design development and approval

Internal Layout

Each dwelling designed as a standalone product suitable for sale or rental. Separate services from the outset. No shared infrastructure.

External Design Options

  • Matching or complementary cladding — developer choice
  • Brick veneer
  • Fibre cement — painted

Construction Method

LGS framing — each dwelling designed as a separate structure for subdivision. Factory-prefabricated components throughout.

Product Specifications

structureLGS framing to NASH Standard — each dwelling
party wallNot applicable — designed as separate structures for subdivision
floor groundConcrete slab on ground — each dwelling
floor upperLGS floor cassette system — each dwelling
roofColorbond steel
walls externalLGS framing with brick veneer or fibre cement
walls internalPlasterboard lining — 10mm
insulationR2.5 wall batts, R4.0 ceiling batts — NCC 2022 compliant
windowsAluminium powder-coated — double glazed
kitchensPrefabricated kitchen units — each dwelling
bathroomsModular bathroom pods — each dwelling
laundrySeparate laundry — each dwelling
garageSingle garage — each dwelling
electricalSeparate metering from construction — each dwelling
plumbingSeparate services from construction — each dwelling
energy rating7-star NatHERS minimum — each dwelling

Standard Finishes

  • Brick veneer or painted fibre cement
  • Colorbond roof
  • Stone benchtops
  • Hybrid flooring — living areas
  • Carpet — bedrooms
  • Ceramic tiles — wet areas

Upgrade Packages

Full Subdivision Management

BSA coordinates DA, subdivision approval, surveying, and title registration — turnkey subdivision package

Sales Package

Marketing materials, floor plans, and sales documentation for off-the-plan or completed sales

Premium Finishes

Upgraded finishes for sale — engineered timber flooring, stone benchtops, semi-frameless shower screens

Typical Applications

Subdivision investmentSell one, keep oneDeveloper productMaximise land value

Approval Considerations

Subdivision-based duplex products require both development approval (DA) for the dwellings and a separate subdivision approval. Requirements vary significantly by state and council — lot size, zoning, frontage, and infrastructure requirements all apply. BSA coordinates the full approval process.

Project Examples

  • Subdivision duplex — sell one keep one — Western Sydney

Important Notice

All floor plans, specifications, and product information are indicative only and subject to change without notice. Concept plans and indicative layouts are for illustrative purposes only and do not represent approved designs. Final designs are subject to design development, structural engineering, services coordination, and planning and building approval. Building Solution Australia does not guarantee that any product can be approved or constructed on any specific site without site-specific assessment. Consult a qualified building professional and your relevant planning authority before making any decisions based on this information.