Class 1a — Dual Occupancy
Side-by-side duplex, attached and detached dual occupancy, subdivision-based products, and investor layouts. Designed for maximum yield on residential lots with integrated approval and construction delivery.
Two dwellings, one lot, maximum yield
Two separate dwellings on a single lot, side by side with a shared party wall. The most common duplex configuration in Australia — suitable for owner-occupier plus rental income, or full investment with two rental incomes. Designed for factory production with LGS framing and prefabricated components.
280
m²
4
Bed
4
Bath
2
Storey
Two dwellings attached — one lot, two incomes
Two dwellings attached by a common wall on a single lot — typically a principal dwelling at the front and a secondary dwelling at the rear, connected by a shared wall or garage. Suitable for multi-generational living or dual income investment.
320
m²
5
Bed
3
Bath
2
Storey
Two separate dwellings on one lot — maximum privacy
Two fully separate dwellings on a single lot — no shared walls. Maximum privacy for both households. Suitable for multi-generational living, dual income investment, or subdivision into two separate lots.
350
m²
5
Bed
3
Bath
2
Storey
Designed for subdivision from day one
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.
300
m²
6
Bed
4
Bath
2
Storey
Two rental incomes, one construction programme
A duplex product designed specifically for residential investors — durable finishes, low-maintenance materials, and a layout optimised for rental yield across both dwellings. Delivered as a complete design-and-construct package with integrated approval management.
260
m²
4
Bed
4
Bath
2
Storey
Contact Building Solution Australia to discuss feasibility for your site.
