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Backyard Home Offices in Aurora, Ontario: design, permit and build on a single contract. A typical 700 sq ft unit estimates at $277,000-$371,500 (about $396/sq ft), with $8,500-$14,000 including York Region charges in municipal approvals and a May-October construction season.

Remote workers and home-based professionals who need a separate, insulated, year-round workspace a few steps from the back door. Built to full dwelling standard so the structure can be converted to a rentable suite later.
Service area
Aurora, Ontario
York Region
Typical build estimate
$277,000-$371,500
about $396/sq ft in Aurora
Municipal approvals
$8,500-$14,000 including York Region charges
quoted separately from the build
Build season
May-October
148 cm snow · -5.1°C winter avg
Frost depth
1.2 m
footing depth, OBC Part 9
Local market
62,057
residents · walkability 44/100
Old Aurora lots routinely run 200 ft deep - the longest average rear-yard depth of any town in York Region. That depth is why Aurora is one of the few GTA municipalities where a two-storey garden suite with its own private yard still clears the angular plane without a minor variance. Aurora permits additional dwelling units with the Aurora Village and Northeast Old Aurora heritage districts adding design review in the core.
Large mature lots in Old Aurora with 200 ft depths, and Oak Ridges Moraine constraints on the western edge.
A backyard office is judged by the building department on one question: is it habitable space or an accessory structure? A unit with plumbing and year-round occupancy is reviewed in Aurora as a dwelling, with everything that implies for servicing and setbacks. Insulation and heating are the whole point in a climate averaging -5.1°C - a shed-grade envelope is unusable from November, so we build to dwelling-standard walls, glazing and a heat pump.
Data and power are trenched from the house on the same run as the water line, which is why a plumbed office costs far less if it is decided before the trench is dug rather than after.
Everything you need to know about our services.
A typical 700 sq ft build in Aurora estimates at $277,000-$371,500 - about $396/sq ft, set by $8,500-$14,000 including York Region charges in approvals, a 1.2 m frost-depth footing requirement and 148 cm of annual snow load. Final pricing follows the site visit.
Related service: Detached ADU
Aurora permits additional dwelling units with the Aurora Village and Northeast Old Aurora heritage districts adding design review in the core. Approval costs in Aurora run $8,500-$14,000 including York Region charges, quoted separately from construction so the permit stage holds no surprises.
Related service: Detached ADU
Large mature lots in Old Aurora with 200 ft depths, and Oak Ridges Moraine constraints on the western edge. At 44/100 walkability, Aurora suites usually keep one parking space: enough to clear the zoning review without surrendering the whole yard. We work regularly in Old Aurora, Aurora Highlands, Bayview Wellington.
Related service: Detached ADU
If it is heated, serviced and occupied year-round, yes - Aurora reviews it as habitable space rather than as a shed, which brings setbacks, servicing and insulation requirements with it. An unheated, unserviced structure under the accessory-building size threshold is treated differently; we confirm which category yours falls into before design.
Related service: ADU Building Permit
Get a free, no-obligation quote from GTA ADU Builders - zoning review, permit drawings and construction for ADUs across the GTA.