312.9 DU – Modern 5 Bedroom Dual Key Duplex House Plan
Affordable Duplex Concept Plans | 312.9 m² / 3,368 Sq Ft | Instant Digital Download
Discover the flexibility of modern dual living with our 312.9 DU Duplex House Plan, featuring a contemporary skillion roof design, five bedrooms, two separate living areas and a double garage.
Designed for families, investors, owner-builders and developers, this practical dual key house design offers two self-contained living spaces under one roof.
Whether you're planning accommodation for extended family, exploring rental opportunities or looking for an affordable duplex design, these professionally prepared concept plans provide an excellent starting point.
House Plan Features
5 Bedrooms across two living units
2 Separate Living Areas
2 Kitchens
3 Bathrooms, including an ensuite
Double Garage
Modern Skillion Roof Design
Separate Entrances
Built-in Bedroom Robes
Open-Plan Kitchen, Living and Dining
Covered Entry Porch
Outdoor Pergola and Entertaining Areas
Ideal for Dual Living or Investment Properties
Building Dimensions
Metric Measurements
Total Building Area: 312.9 m²
Width: 16.95 metres
Length: 23.42 metres
Imperial Measurements
Total Building Area: 3,368 Sq Ft
Width: 55' 7"
Length: 76' 10"
Two Separate Living Units
Main Residence – 3 Bedrooms
The main home features three bedrooms, a spacious open-plan living and dining area, modern kitchen with pantry, separate laundry, family bathroom, ensuite, and outdoor entertaining space.
Second Residence – 2 Bedrooms
The adjoining two-bedroom unit offers its own kitchen, living area, bathroom, laundry and separate entrance, providing flexibility for extended family or potential rental accommodation, subject to local approvals.
What's Included in Your Concept Plan Package?
Your downloadable PDF package includes:
Furnished 2D Floor Plan
Metric and Imperial Plan Versions
3D Furnished Floor Plan
3D Exterior Front Rendering
Architectural Elevations – All Four Sides
Dimensioned Concept Floor Plan
Window and Door Schedules
Building Area Summary
General Construction Notes
Copyright Release to Use the Plans
Digital PDF Download
Please note: These are preliminary concept plans, not complete construction or building permit drawings.
Why Choose Our Concept House Plans?
Save Money: Explore your preferred house design before investing in full construction documentation.
Plan Your Budget: Use the concept plans to discuss your project and obtain preliminary estimates from builders.
Explore Design Options: Review room layouts, building dimensions and architectural features before construction.
Customise Your Design: Request affordable modifications to suit your land, lifestyle and building requirements.
Upgrade When Ready: We can prepare full construction plans tailored to your site and local building regulations.
Custom House Plan Modifications Available
Need to change the floor layout, adjust bedroom sizes, modify the facade or adapt this duplex design to your property?
Our professional house design service can help you customise the plans to meet your requirements.
Contact us for an affordable quotation.
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