Multi-Unit Development
Smart-Size Your Property With Legal Multi-Unit Living
Gateway Group helps homeowners and investors convert underused land into legal duplexes, triplexes, fourplexes, and infill homes. We manage feasibility, design, zoning, permits, and construction — so your build is fully compliant, income-generating, and built to last.
Legal multi-unit design and permitting
Optimized layouts for rental efficiency
Full cost transparency and investor reporting
Builds that strengthen Hamilton’s attainable and workforce housing supply
The advantages of building a
multi-unit home with Gateway
Whether you’re planning a duplex, triplex, fourplex, or infill project, we help you unlock your property’s full potential. Our integrated team handles feasibility, design, permits, and construction — ensuring your project is legal, efficient, and profitable.
We focus on smart layouts, durable finishes, and efficient designs that deliver lasting value for investors, homeowners, and communities. Every project is built to create opportunity — and increase Hamilton’s attainable and workforce housing supply.
See below our most frequently asked questions regarding Dual Occupancy
We design and build legal duplexes, triplexes, fourplexes, and custom infill developments.
Anywhere from 2–4 months depending on zoning, engineering, and scope.
Yes — we manage zoning checks, architectural plans, and building permit applications.
Feasibility, concept design, unit mix planning, costing, and timelines.
Most multi-unit projects take 6–12 months depending on size and complexity.
Submit the feasibility form — we check zoning, setbacks, lot size, density, and servicing.
Costs vary by unit count, finishes, and complexity. We provide a ballpark estimate during feasibility.
Working with Gateway Group and the team there was fantastic for me as an investor. They helped me understand market conditions, and helped us create a legal duplex I feel really good about.
Gateway Group were the building contractors on the newly renovated house we bought at the end of 2021. The team used premium materials throughout and every maintenance or contract team that has been through our home since we purchased it have commented on the high quality of the renovation and finishings.
My family and I are so happy to work with the Gateway team and also be surprised of buying this house that it was built by you so everything look good to me. It is nice house, good quality especially good price.
My wife and I bought our first home built by Charles and the Gateway team and absolutely love it. The whole process has been great, Charles and the team are very responsive and care about the quality of work and the product they built. We love our home and are so happy to make memories here.
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