ADU & Second Dwelling Unit Plans in Toronto and the GTA
Planning considerations, zoning context, and permit drawings for garden suites, laneway units, and legal basement apartments.
Additional dwelling units remain a high-demand project type across Toronto and the Greater Toronto Area. Each municipality applies zoning, parking, height, and separation rules differently.
Early feasibility review—lot coverage, setbacks, and servicing—helps avoid redesign after pre-consultation.
Drawing requirements
ADU submissions usually require existing and proposed plans, elevations, sections, and site context showing access, fire separation, and egress.
Clear documentation of ceiling heights, sleeping areas, and smoke/CO alarm locations supports faster review for basement apartment conversions.
Local expertise matters
Archiflow Studio supports ADU and second-unit projects with layouts and permit-ready drawings aligned to your municipality’s checklist.
Contact us with your address and project goals for a focused consultation.
Need permit-ready drawings or design support? Book a consultation with Archiflow Studio.