ADU Construction in Aurora - Design, Permits, Construction

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. North-GTA snowfall of 148 cm and -5.1°C winters give Aurora a May-October working season - foundations for adu construction go in before the ground closes, with interior finishing carried through the cold months.

Construction in Aurora is sequenced around one hard date - the day the ground closes - because footings to 1.2 m cannot be poured into frozen soil without heat and hoarding costs that change the budget. Excavation, foundation and envelope land inside the May-October window; mechanical, drywall and finishing then run through winter, with inspections booked against York Region's calendar rather than ours. Roof structure on every Aurora build is sized for 148 cm of annual snow load against -5.1°C design winters - the two numbers that separate a GTA build spec from a generic one.