190DU Mark 11 – Modern Duplex House Plan
4 Bedroom | 4 Bathroom | 2 Garages | 180.4m² (1,940 Sq Ft)
Affordable Modern Duplex Design – Premium Concept & Build Cost Planning Plans
Looking for an affordable modern duplex house plan that combines practical family living with excellent investment potential?
The 190DU Mark 11 Modern Duplex House Plan offers two self-contained, mirrored residences under one roof, each featuring two bedrooms, two bathrooms, a modern kitchen, comfortable living areas, a study nook and a private lock-up garage.
Our Premium Concept House Plan Set is designed to help you explore building costs, obtain preliminary builder quotations and plan your project before committing to full construction drawings.
Modern Duplex Plan Features
4 Bedrooms – 2 in each residence
4 Bathrooms – 2 in each residence, including ensuites
2 Modern Kitchens
2 Open-Plan Living and Dining Areas
2 Study Nooks – Ideal for Working from Home
2 Private Single Lock-Up Garages
Separate Laundry Facilities
Built-In Bedroom Robes
Single-Storey Design
Mirrored Floor Plan for Efficient Space Planning
Modern Roof Design and Attractive Street Appeal
Plans Supplied in Metric and Imperial Measurements
Duplex Building Areas
UNIT 1
| Area | Metric | Imperial |
|---|---|---|
| Living Area | 70.1m² | 753 Sq Ft |
| Garage | 20.1m² | 216 Sq Ft |
| Total Unit 1 | 90.2m² | 970 Sq Ft |
UNIT 2
| Area | Metric | Imperial |
|---|---|---|
| Living Area | 70.1m² | 753 Sq Ft |
| Garage | 20.1m² | 216 Sq Ft |
| Total Unit 2 | 90.2m² | 970 Sq Ft |
TOTAL BUILDING AREA: 180.4m² / 1,940 Sq Ft
Areas are rounded as shown on the supplied plans.
Room Dimensions – Each Unit
| Room | Metric | Imperial |
|---|---|---|
| Bedroom 1 | 3.6 × 3.0m | 12'0" × 9'8" |
| Bedroom 2 | 3.6 × 2.7m | 11'9" × 8'10" |
| Lounge | 4.0 × 4.0m | 13'0" × 13'0" |
What's Included in Your Premium Concept Plan Set?
Your purchase includes downloadable PDF concept plans supplied in both Metric and Imperial versions.
1. Dimensioned Floor Plans
Detailed floor plans showing room layouts, internal dimensions, doors, windows, bathrooms, kitchens, garages and other key building features.
2. Furnished Floor Plans
Illustrated floor plans showing furniture arrangements to help you visualise how each residence functions.
3. Building Elevations
Front, rear, left and right elevation drawings showing the external building appearance and roof design.
4. Electrical Layout Plans
Preliminary electrical drawings showing proposed lighting, switches, power outlets and electrical locations.
5. Window Schedule
Window information identifying sizes, types and locations.
6. Door Schedule
Door information showing dimensions, types and identification references.
7. 3D House Design Views
Exterior 3D illustrations showing the duplex design from multiple perspectives.
8. Copyright Release
A copyright release for building, subject to the supplied licence terms.
9. Instant Digital Download
PDF files for convenient viewing, printing and sharing with builders, designers and suppliers.
Plan Your Building Costs Before You Build
A Smarter Way to Start Your Duplex Project
Our concept plans are intended to help you begin the building quotation process earlier.
Step 1 – Purchase Your Concept Plans
Start with a professionally prepared duplex design rather than paying to develop an entirely new layout from scratch.
Step 2 – Request Builder Quotations
Share your plans with builders and relevant building suppliers to obtain preliminary construction estimates.
Step 3 – Compare Building Costs
Review the quotations, compare building specifications and identify possible cost-saving alternatives.
Step 4 – Modify the Design if Required
If the estimated building costs exceed your budget, consider adjustments before commissioning final construction documentation.
Step 5 – Upgrade to Full Construction Plans
Once you are satisfied with the design and preliminary budget, arrange the detailed drawings, engineering and other documentation required for your location.
This approach can help reduce unnecessary design changes and improve your understanding of project costs before construction begins.
Important: Concept plans support preliminary cost estimates. Final prices will depend on your site, local regulations, engineering, materials, labour and builder specifications.
Ideal for Property Investors, Developers and Owner-Builders
The 190DU Mark 11 is a practical option for several types of projects.
Investment Duplex: Explore the possibility of constructing two independent rental residences on one property, subject to local planning approval.
Dual-Occupancy Living: A useful design for families wanting to live close together while maintaining separate living spaces.
Property Development: A compact duplex concept suitable for assessing development opportunities and preliminary project feasibility.
Owner-Builders: Use the plans as a starting point for discussing construction requirements and requesting preliminary trade and supplier quotations.
Builders: An attractive duplex design to present to prospective clients and develop into a site-specific building proposal, subject to the supplied licence.
Our drafting and home design service can help you customise the Mark 11 duplex to suit your requirements.
Possible modifications include:
Adjusting room sizes and internal layouts
Changing kitchen or bathroom arrangements
Modifying garage dimensions
Altering doors and windows
Adjusting external finishes
Customising the design for your site
Preparing full construction drawings
Contact us for a free quotation on your requested plan modifications.
Important Information – Please Read Before Purchasing
These drawings are intended for preliminary planning, design development and obtaining initial building quotations.
Digital Product: No physical plans will be posted.

