Whitchurch-Stouffville: questions buyers ask
What records explain additional residential units at a Whitchurch-Stouffville home?
Section 3.28 of the Town's Comprehensive Zoning By-law 2010-001-ZO, added by By-law 2024-078-ZO on 19 June 2024 and amended since (July 2026 consolidation), with its Schedule 66 permission map.
Sources checked October 29, 2026
The rule in Whitchurch-Stouffville
Whitchurch-Stouffville zoning by-law 2010-001-ZO s.3.28: on full municipal water and sewage services, permits up to three additional residential units with a single detached house (three only on lots with at least 15 m of frontage and 555 m²) and up to two with a semi-detached house or townhouse, each with one more parking space; one unit in all on an unserviced or partially serviced hamlet lot; none on land zoned Flood Hazard or Environmental.
From Whitchurch-Stouffville by-law 2010-001-ZO s.3.28, checked 29 Oct 2026
- The recordAdditional residential units
- Where to read itZoning By-law 2010-001-ZO, Section 3 (July 2026); Additional Residential Units Zoning By-law Update and 1 more
- The free check reads itPick “Extra units allowed”
What the record shows
Section 3.28, as consolidated in July 2026, says a single detached house on both municipal sewage and water services may have, beside the principal unit, up to three integrated units, or two integrated units and one ancillary unit, or one integrated unit and two ancillary units in a single building; three additional units are only permitted on lots with at least 15 metres of frontage and 555 square metres of area. A semi-detached house or townhouse on full services may have two integrated units, one integrated and one ancillary unit, or two ancillary units in a single building. Each unit needs one parking space beyond the main home's, which may be in tandem, and a path at least 1.2 metres wide from its entrance to a street.
On an unserviced or partially serviced lot within the settlement areas of Vandorf, Gormley, Bloomington, Musselman's Lake and Ballantrae, the by-law allows one unit in total; in the Oak Ridges Moraine Countryside zone, one integrated unit in a single detached house; and none on land zoned Flood Hazard or Environmental. The Town's additional residential units page says the full municipal servicing these permissions need is, at present, the Stouffville Secondary Plan Area. A general permission does not make an existing basement apartment lawful; the building permit and inspections are the records that do.
Where to read it yourself
- Zoning By-law 2010-001-ZO, Section 3 (July 2026): the general provisions, including additional residential units (3.28) and home occupations (3.27) (PDF)
- Additional Residential Units Zoning By-law Update: the Town's page on the additional residential unit rules, servicing and the provincial plans
- Comprehensive Zoning By-law: the Town's page with every section and schedule of By-law 2010-001-ZO
What OfferDue covers in Whitchurch-Stouffville
Extra units allowed is in the free check as a summary of the Town's rule, from our hand-kept table of city rules, and the full report reads the lot's zone where the Town's zoning map is open data we can use; where it isn't, the report's line says where the Town publishes it. Neither is confirmation that a particular unit holds a permit or may be occupied.
Free check: pick “Extra units allowed” See the sample report
Public-record information, not legal, financial, insurance or inspection advice. Records change and can be incomplete, and this page describes the records, not any particular home. What we cover, city by city.