Multiplex Homes
Enhance your property in ways you might not have imagined.
Do you have existing, unused space in your backyard that you’d like to make more functional?
Laneway homes are a great way to breathe new life into your property.
Multiplex Home Builders in Vancouver
Do you have existing, unused space in your backyard that you’d like to make more functional?
Laneway homes are a great way to breathe new life into your property. Laneway homes in Vancouver go beyond being mere buildings – they help enhance your lifestyle in ways you might not have imagined. Whether you want extra space for your family or visiting guests, or for a rental unit to provide extra income, laneway homes have many benefits.
Additionally, if you are considering selling in the future, the stand-alone structure of a laneway home is a worthwhile investment that will undoubtedly increase the value of your property.
At Theorem Developments, we specialize in creating laneway homes – our approach is tailored to your unique needs, ensuring every detail aligns with your requirements and dreams.

Our Multiplex Home Construction Services
Design and Planning
Small Treasures is a two-level, two-bedroom, 1.5-bathroom infill home, demonstrating an innovative approach to maximizing space without compromising on comfort.
Seamless Construction
Small Treasures is a two-level, two-bedroom, 1.5-bathroom infill home, demonstrating an innovative approach to maximizing space without compromising on comfort.
Permits and Zoning
Small Treasures is a two-level, two-bedroom, 1.5-bathroom infill home, demonstrating an innovative approach to maximizing space without compromising on comfort.

Building a custom home is a journey of collaboration.
Book a free 30 minute consultation call.
Your multiplex development from start to finish: 20-28 months total.
Multiplex projects involve more complexity than single homes, but our systematic approach eliminates timeline surprises. You'll understand exactly what happens in each phase, when decisions are needed, and how we keep your project moving efficiently through municipal approvals and construction phases.
2-3 months
We evaluate your lot's multiplex potential through comprehensive site analysis, coordinate initial design consultants, and provide transparent cost estimates before you commit to development.
6–8 months
Our team coordinates architects, engineers, and specialists while managing all municipal submissions across Vancouver, Burnaby, and New Westminster to secure required permits and approvals.
2–4 weeks
We connect you with experienced construction lenders, help prepare required documentation, and coordinate project financing before breaking ground.
12–15 months
You receive access to our project management software with live budget tracking and progress updates while we coordinate all trades, manage inspections, and conduct monthly progress meetings with direct leadership access.
2–3 months
We coordinate complete interior design packages, manage final inspections, utility connections, and occupancy permits to deliver each unit fully permitted and ready for your intended use.
Coverage
After completion – 2 years materials and labor, 5 years building envelope, 10 years structural defects with responsive service







