ADU Plans 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 plans go in before the ground closes, with interior finishing carried through the cold months.

Plans are only useful if they are permit-ready for the authority that will actually review them, so an Aurora set is drawn to York Region submission standards rather than to a generic template. The set covers site plan, floor plans, elevations, sections, the 1.2 m foundation detail, the roof framing sized for 148 cm of snow, and the fire-separation and egress details the plans examiner checks first. Stock plans bought online almost always fail the Aurora review on setbacks and lot coverage, because those are parcel-specific and no catalogue drawing can know your lot.