Give Us 30 Minutes & We'll Show You How Smart Duplex & Dual Occupancy Design Benefits NSW Homeowners & Investors

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At Profectus Design, we specialise in duplex designs, dual occupancy home designs, and innovative house plans that maximise land value, especially in growing suburbs across NSW. Whether you're a homeowner seeking multi-generational living options or a property investor looking to boost returns, our duplex home design plans are built with purpose, compliance, and future growth in mind.

Duplex & Dual Occupancy Services

Custom Duplex House Plans

Every block is different - that's why our duplex house design plan services are bespoke. We consider orientation, slope, setbacks, views, and access when planning your ideal layout

Dual Occupancy Home Planning

Need separate residences on one block? We help homeowners and developers unlock value with dual occupancy home plans that suit extended families or long-term rentals, without compromising privacy or style.

Designs for Narrow Blocks

Sydney's urban sprawl has increased demand for smart duplex designs for narrow blocks and with the new Low Mid Rise Housing Diversity code allowing duplex development on smaller lots our compact plans maximise liveability while adhering to compliance.

Full Design & Build Support

From design management to DA/CDC lodgement and consultant coordination, we take the stress out of planning your dual occupancy home design or duplex type house design. In partnership with handpicked builders, our Design & Build packages ensure a refined journey from vision to finished home.

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Project Examples

Projects like our Mare Vitae, Harmony and Jannali Duplexes show how we bring dual living to life with thoughtful interiors, attractive facades, and approval-friendly documentation.

Why Dual Occupancy Designs Make Sense

Flexible Living for large families, investors, or multi-generational setups
Increased Yield from one land title
Lower Development Costs compared to building multiple standalone homes
Private Entrances, Yards and Living Spaces for Each Residence
DA/CDC Compliant and tailored to Council and State Regulations

Why Choose Profectus Design?

Experienced in duplex home design across Sydney and NSW
Registered BDAA designers with an expert eye for land potential
Cost-effective solutions for knock down and rebuild and design & build projects
Clear documentation and ongoing support

Let's Build Your Next Investment or Family Legacy

Looking to develop a duplex, dual occupancy or explore duplex plans for a future investment? Our team is here to help.

Testimonials

Stephen's deep knowledge and expertise in the industry, along with his flexibility and attention to detail, made the entire process seamless. He took the time to truly understand our needs and tailored a custom design that perfectly suited my project. What really stood out was his experience working with various councils and his in-depth understanding of the legislation, which gave us the best chance of council approval. Stephen's professionalism and dedication to getting the job done right were clear from start to finish. If you're looking for someone who goes above and beyond to ensure the success of your project, Profectus Design is the way to go!

Vivian Jude

Stephen was great to deal with, he really knew all that is required to get our project documents over the line.. very easy to deal with. Thank you Stephen

Michael Atesh

Stephen and his team at Profectus Design are highly experienced and detailed consultants. They design to your construction budget offering a wide range of options without compromising that pleasing architectural style and look.Stephen and his team take to pressure and stress of creating your architectural vision by handling all stages from start to finish.If you're looking for an honest and diligent design company for your building project, I would only recommend Stephen from Profectus Design.

Steve Kennett

Stephen's knowledge exceeds that of most builders in the game, the quality of works he provides is second to none. I've had no issues working with him, he is responsive and always meeting deadlines.

Isaac Mourched

Hi Stephen, First of all, amazing plans mate, Best plans ever worked with, so clean and tidy,amazing job mate, I wish you all the best.

Marios Kardaris

Profectus Design completed a small project for our home, They truly do prioritise communication. We discussed our project with Stephen, which was captured perfectly with some fantastic proposals made clear to us. We loved the work, the efficiency and the communication. Would definitely be using Profectus again and referring them to everyone we know

Jacqueline & Jude

Claim Your FREE No-Obligation 30 Minute Consultation

During this no-obligation call, our experts will discuss your specific situation and how we can help you achieve a duplex or dual occupancy on your siste in the shortest time possible.
Here's what you'll discover in your FREE consultation:

What you can achieve on your existing or potential site
The exact process we've used to guide our clients from site analysis through to design, approvals, and construction - clearly and efficiently
The biggest problems people come to us with which keeps them from progressing!

Call Profectus Design on 0452 493 412 or email hello@profectusdesign.com.au to book a discovery call today.

Claim Your FREE 30-Minute Strategy Session To Discover Your Sites Potential

Book A Free Strategy Session Now