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Real Estate Investors in York, Ontario: design, permit and build on a single contract. A typical 700 sq ft unit estimates at $280,500-$376,000 (about $401/sq ft), with $8,000-$14,000 under the City of Toronto fee schedule in municipal approvals and a April-November construction season.

Investors adding a income-generating unit to an existing rental property. We start with a feasibility and lot review that states what the zoning allows, what the build costs and what the unit rents for before you commit capital.
Service area
York, Ontario
City of Toronto
Typical build estimate
$280,500-$376,000
about $401/sq ft in York
Municipal approvals
$8,000-$14,000 under the City of Toronto fee schedule
quoted separately from the build
Build season
April-November
124 cm snow · -3.9°C winter avg
Frost depth
1.2 m
footing depth, OBC Part 9
Local market
150,000
residents · walkability 63/100
The former City of York is dominated by mutual and shared driveways - two neighbours, one strip of asphalt. Resolving that easement is the first task on nearly every Weston or Silverthorn garden-suite project, because a shared drive changes both the construction access plan and the parking calculation the city reviews. City of Toronto laneway and garden suite by-laws apply; the York grid around Weston and Mount Dennis retains service lanes that qualify for laneway suites.
Older narrow semi-detached lots on a laneway grid, with frequent shared-driveway conditions that must be resolved before permit. York sees 124 cm of snow and -3.9°C winter averages. Ontario's 1.2 m frost-depth requirement governs every footing we pour for real estate investors, and the April-November season sets the excavation window.
An investment ADU is underwritten before it is designed: the build cost, the $8,000-$14,000 under the City of Toronto fee schedule in approvals and the achievable York rent decide the unit size, not the other way round. We price the feasibility stage as a standalone deliverable so the numbers can be tested against your York parcel before any commitment to design. A legal second unit changes the appraisal basis of the property, which is the return most owners underestimate next to the monthly rent.
Everything you need to know about our services.
A typical 700 sq ft build in York estimates at $280,500-$376,000 - about $401/sq ft, set by $8,000-$14,000 under the City of Toronto fee schedule in approvals, a 1.2 m frost-depth footing requirement and 124 cm of annual snow load. Final pricing follows the site visit.
Related service: Our ADU services
City of Toronto laneway and garden suite by-laws apply; the York grid around Weston and Mount Dennis retains service lanes that qualify for laneway suites. Approval costs in York run $8,000-$14,000 under the City of Toronto fee schedule, quoted separately from construction so the permit stage holds no surprises.
Related service: Laneway Homes
Older narrow semi-detached lots on a laneway grid, with frequent shared-driveway conditions that must be resolved before permit. York scores 63/100 on walkability, so many tenants here do not need the extra parking space - that frees rear-yard area for the unit itself. We work regularly in Weston, Mount Dennis, Silverthorn.
Related service: Our ADU services
A legal, permitted second unit changes how the property is appraised in York - it is valued partly on income rather than purely on comparables. An unpermitted suite does the opposite: it is discounted or excluded entirely, and it surfaces on every purchaser's title and insurance review.
Related service: Accessory Dwelling Units
Get a free, no-obligation quote from GTA ADU Builders - zoning review, permit drawings and construction for ADUs across the GTA.