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Top Fourplex Builders In Ottawa
A fourplex is the most financially powerful residential investment available to Ottawa property owners under the new Zoning By-law 2026-50. With four units still classified as residential financing (not commercial), fourplexes qualify for CMHC MLI Select and standard residential mortgages — while generating substantially more rental income than a duplex or triplex. Under the new N2 zone, four-unit buildings are now the maximum permitted per building, making fourplexes the highest-density project achievable on a standard Ottawa residential lot. Here are the top fourplex builders in Ottawa for 2026.
| Builder | Fourplex Approach | Design-Build Integration | Best For |
|---|---|---|---|
| Ottawa General Contractors — Top Choice | New builds, conversions, infill fourplexes | Fully integrated in-house design, permit & build | Investors wanting maximum rental income with full project management |
| OakWood Designers & Builders | Large-scale multi-unit conversion renovations | Strong design-build with showroom design support | Homeowners undertaking major structural whole-home conversions |
| Modello Homes | Custom fourplex new builds and infill | Collaborative modern design approach | Design-forward investors seeking high-end fourplex builds |
| Sunter Homes | Multi-unit residential projects | Architect-collaborative builder process | Clients wanting a boutique builder for a premium fourplex product |
| Metric Homes | New build multi-unit residential in communities | Standardized builder-led process | Investors in planned Ottawa suburban developments |
Ottawa General Contractors
Ottawa General Contractors (OGC) is Ottawa's most experienced design-build team for fourplex construction. A fourplex is the most complex project in the N2 zone — requiring the most precise fire separation design, four sets of egress and ventilation systems, four utility connections, and sophisticated proforma planning to ensure the investment pencils out. OGC's integrated team includes in-house designers, project managers, and construction crews who specialize in exactly this type of multi-unit infill work.
Under the new N2 zone rules, four units is the maximum per building. For lots that could support more density, the N3 zone permits up to 10 units, and the N4 zone has no density cap. OGC can help you determine the right scale for your specific lot. See also our guide on how many units you can build on a typical Ottawa lot.
Services Offered
- New fourplex construction on N2, N3, and N4-zoned lots
- Single-family to fourplex conversion with full permit management
- Investment proforma modelling and ROI analysis
- Full in-house design, 3D visualization, and construction
- CMHC MLI Select coordination and financing strategy support
Location & Service Area
- Office: 1886 Merivale Road, Suite 200, Nepean, ON K2G 1E6
- Service Area: Ottawa and the National Capital Region
Contact Information
- Phone: (613) 225-9991
- Email: info@ottawageneralcontractors.com
- Website: ottawageneralcontractors.com/investor/multifamily-development-experts-in-ottawa
Recent Reviews
"We hired Ottawa General Contractors for the rebuild of our home, and we couldn't be happier with the results. From the initial consultation with Nick, through construction with Adam — the team was professional, communicative, and attentive to every detail. The craftsmanship is top notch, everything looks and functions beautifully. What really impressed us was how responsive and solution oriented they were."
"I recently had the pleasure of working with OGC for the design and build of our coach house, and I cannot recommend them highly enough. From start to finish, their professionalism was evident. Communication was a strong suit; they kept me informed at every stage of the project."
OakWood Designers & Builders
Background & Services
OakWood is Ottawa's longest-established design-build firm with over 65 years in the market. For property owners with larger existing homes who want to pursue a multi-unit conversion, OakWood's renovation capabilities and structured design process are well-suited to complex structural transformations. Their multiple Ottawa studios and design centre make them a strong option for clients who want hands-on design support through the process.
- Complex renovation and structural conversion work
- Secondary suite and multi-unit additions to existing homes
- In-house design, 3D planning, and project management
Location
- Headquarters: 865 Taylor Creek Dr, Ottawa, ON K4A 0Z9
- Glebe Studio: 555 Bank Street, Ottawa, ON K1S 5L7
Contact Information
- Phone: (613) 236-8001
- Website: oakwood.ca
Modello Homes
Background & Services
Modello Homes is a custom builder known for modern, architecturally refined residential builds in Ottawa. With over 30 years of combined experience, their team brings a design-first approach to infill and estate projects. For investors who want a fourplex that commands premium rents by standing out in the neighbourhood, Modello's attention to modern aesthetics and quality finishes makes them a compelling option for purpose-built fourplex new construction.
- Custom fourplex and infill multi-unit new builds
- Modern design with award-winning supplier and trade networks
- Tarion registered builder with full new-home warranty coverage
Location
- 1623 Westhall Way, Ottawa, ON K2M 0G7
Contact Information
- Phone: +1 (613) 316-2103
- Website: modellohomes.ca
Sunter Homes
Background & Services
Sunter Homes has been building custom and semi-custom homes in Ottawa since 2010. They work alongside award-winning architects and designers and have built multi-unit residential projects alongside their core custom home work. For clients who value a close, personal relationship with a builder on a premium fourplex project, Sunter's team-oriented approach is a differentiator.
- Custom and luxury multi-unit residential construction
- Collaboration with leading Ottawa architects and designers
- Community developments and multi-unit residential projects
Location
- Ottawa, ON (Greater Ottawa area)
Contact Information
- Phone: (613) 913-9697
- Website: sunterhomes.com
Metric Homes
Background & Services
Metric Homes builds new homes and multi-unit residential buildings in Ottawa-area communities. Operating since 2000, their "Better Built" standards and focus on suburban new-construction communities makes them a relevant option for investors looking for fourplex product within planned developments or in growing west-Ottawa communities like Kanata and Stittsville.
- New fourplex and multi-unit builds in Ottawa communities
- Income and multi-generational residential designs
- New community development projects in the Ottawa region
Location
- Ottawa area — primarily Kanata and West Ottawa
Contact Information
- Sales: 613-296-7000
- Office: 613-836-8079
- Website: metrichomes.com
Why the Fourplex Is Ottawa's Best Residential Investment Right Now
Four units is the sweet spot for Ottawa real estate investors in 2026. It's the maximum density in N2 zones, it still qualifies as residential financing (not commercial), and it unlocks CMHC MLI Select — a government-backed insured mortgage program with some of the lowest available rates for multi-unit housing. Combine that with Ottawa's consistently strong rental demand from government workers, university students, and a diverse professional population, and a well-built fourplex in a good Ottawa neighbourhood is a compelling long-term asset.
For a deeper understanding of the zoning rules that govern what you can build, see our full N-zone guides: N1, N2, N3, and N4.
Who Is the Best Fourplex Builder in Ottawa for Me?
For investors and property owners pursuing a fourplex in Ottawa, the choice of builder determines the quality of the investment product you end up with. Ottawa General Contractors offers the most comprehensive service in the city: integrated design and zoning expertise, detailed proforma modelling, full permit management, and hands-on construction under one accountable team. Their experience specifically with multi-unit Ottawa infill makes them the clear recommendation for fourplex builds.
Contact OGC today to discuss your fourplex project and get a free feasibility review for your lot.
