What fits, and what it costs
We look at your lot, the unit mix that could work and a preliminary cost per unit, before you commit to a design or a purchase.

Small multi-family + infill construction
Duplexes, triplexes, fourplexes and sixplexes.
Bring us your lot or your plans. We'll help you assess the possibilities, plan the budget and take your project through construction.
Have a lot in mind? Send the address. We'll reply within one business day.

We look at your lot, the unit mix that could work and a preliminary cost per unit, before you commit to a design or a purchase.
Our design team lays out the duplex, triplex, fourplex or sixplex and prepares the drawings for approvals. Already have plans? We'll price and build from them.
We manage construction as your infill builder, coordinating the trades, inspections and schedule on site.
After handover: Summit can also manage the property for you, as a separate, optional service.

Current project
Two adjacent 25 × 100 ft lots, two new houses, four homes. Each house has its own secondary suite: at 299 it's in the basement, at 301 it's on the second floor. Summit is construction manager for Catalyst Community Capital.

A new house with a self-contained two-bedroom secondary suite, on a 25-foot lot. Built by Summit under construction management for Catalyst Community Capital.
View the project
Two houses, each with a basement suite: four homes. Permits issued June 2026. Design-build construction management, through lock-up.
View the project
A two-storey fourplex on a 50 × 214 ft lot, with parking off the rear lane. Design-build construction management.
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A new house with a second-floor secondary suite: two homes on one lot. Design-build construction management.
View the projectSix homes on a single infill lot. Two Summit sixplexes are in design now.

Design ideas for infill lots, finished interiors and the drawings behind our current projects.








Two homes, side by side or stacked.
Three homes on one lot.
Four homes in one building, like 328 Whytewold.
Six homes on one lot, like 312 Enfield and 135 Larche.
A new house plus a self-contained suite, as at Edderton, Oakview, Linden and Cheriton.
Planning a larger apartment building? See large multi-family construction.
Send us the address of your lot, or the one you're considering. We'll reply within one business day.
Tell us about the site, or the one you're considering.
What could fit, and an early cost per unit.
Our drawings or yours, then permits.
Summit manages the build.
Final inspections and occupancy.
Yes. Bring the address of a lot you're considering. A feasibility conversation before you buy can help you compare options.
Yes. We'll review and price your drawings, or design the project with you from the start.
Mainly the number and size of the units, the site (demolition, servicing, access and soil), the foundation and structure, and the finishes you choose. We give a preliminary estimate once we know the lot and the plan.
It depends on the lot's size, zoning, servicing and access. Some lots can, some can't. That's exactly what the consultation helps sort out.
It depends on design, approvals and the size of the build. We'll give you a timeline for your project once the scope is clear.
Tell us about your project and your lot, if you have one. We'll reply within one business day to set up a conversation about:
Your first consultation helps define the project and the next steps.