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Garden Suites in King, Ontario: design, permit and build on a single contract. A typical 700 sq ft unit estimates at $269,500-$361,000 (about $385/sq ft), with $9,000-$16,500 including York Region and septic charges in municipal approvals and a May-October construction season.

Detached garden suites for backyards without laneway access - permitted under Toronto's garden suite by-law and built as a complete, independently serviced home.
Service area
King, Ontario
York Region
Typical build estimate
$269,500-$361,000
about $385/sq ft in King
Municipal approvals
$9,000-$16,500 including York Region and septic charges
quoted separately from the build
Build season
May-October
150 cm snow · -5.3°C winter avg
Frost depth
1.2 m
footing depth, OBC Part 9
Local market
27,333
residents · walkability 21/100
King Township is almost entirely Oak Ridges Moraine and Greenbelt, with core-area designations that prohibit new building envelopes outright on some parcels. We run a moraine designation check against the property roll number before quoting a King City or Nobleton laneway-suite or garden-suite project, because on a core-area lot the honest answer is sometimes no. King Township permits additional dwelling units, with Oak Ridges Moraine and Greenbelt policies plus private servicing governing the majority of properties.
Estate and agricultural parcels, many over an acre, on private well and septic with moraine core-area restrictions.
A garden suite is a free-standing building in the rear yard, so the governing numbers on a King lot are rear and side setbacks, the soft-landscaping percentage that has to survive, and the separation distance to the main house required for fire spread. Because it is new construction on undisturbed ground, the footings go to 1.2 m and the roof is engineered for 150 cm of annual snow load - both poured and framed inside the May-October season. Rear-yard access for the excavator is the practical gate: where estate and agricultural parcels, many over an acre, on private well and septic with moraine core-area restrictions, we plan side-yard machine access or crane placement before pricing.
Everything you need to know about our services.
A typical 700 sq ft build in King estimates at $269,500-$361,000 - about $385/sq ft, set by $9,000-$16,500 including York Region and septic charges in approvals, a 1.2 m frost-depth footing requirement and 150 cm of annual snow load. Final pricing follows the site visit.
Related service: Our ADU services
King Township permits additional dwelling units, with Oak Ridges Moraine and Greenbelt policies plus private servicing governing the majority of properties. Approval costs in King run $9,000-$16,500 including York Region and septic charges, quoted separately from construction so the permit stage holds no surprises.
Related service: Our ADU services
Estate and agricultural parcels, many over an acre, on private well and septic with moraine core-area restrictions. King is car-oriented at 21/100 walkability, so parking retention and driveway access constrain the footprint more than the zoning envelope does. We work regularly in King City, Nobleton, Schomberg.
Related service: Our ADU services
Size is capped by lot coverage and rear-yard setbacks rather than by a single square-footage number, which is why we run a feasibility overlay on your King parcel first. King Township permits additional dwelling units, with Oak Ridges Moraine and Greenbelt policies plus private servicing governing the majority of properties. A 500-800 sq ft footprint clears on most serviced lots here.
Related service: Our ADU services
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