What records explain additional residential units at a King home?

The Township's zoning page says By-law 2022-053 covers the rural areas and hamlets and By-laws 2017-66 and 2016-71 cover the villages of King City, Schomberg and Nobleton. Section 3.3 of the Countryside by-law permits up to two additional residential units on a lot in any zone that permits a single detached dwelling, only one of them in a detached accessory building, where it is limited to 50% of the main dwelling's floor area or 85 square metres, whichever is less, and kept out of the front and exterior side yards. In the Oak Ridges Moraine Countryside zone one unit is permitted, inside the house, and none in the moraine's Natural Core and Linkage and Feature Protection zones; each unit needs one extra parking space, which may be tandem, and none may be on hazardous lands. The Township's page says parts of By-law 2022-053 are under appeal at the Ontario Land Tribunal, where By-law 74-53 also applies.

The village by-laws as posted on the Township's page, the 2018 consolidation of By-law 2017-66 and By-law 2016-71 as adopted in 2016, provide for an accessory dwelling unit only as one accessory to a non-residential use. Section 35.1 of the Planning Act says a zoning by-law may not prohibit, on a parcel of urban residential land (in a settlement area and served by municipal sewage works and a municipal water system), two units in a detached house, semi-detached house or rowhouse with one more in an ancillary building, or three units in the house, nor require more than one parking space for each of those units. A general permission does not make an existing basement apartment lawful; the building permit and inspections are the records that do.

• Zoning By-laws: the Township's page on its Countryside and village zoning by-laws and the appeals
• Zoning By-law for the Countryside, By-law 2022-053: the by-law text, with additional residential units (3.3) and home occupations (3.20) (PDF)
• Zoning By-law 2017-66, Schomberg and King City (July 2018 consolidation): the village by-law, with accessory dwelling units (3.1) and home occupations (3.15) (PDF)
• Planning Act, section 35.1: the restrictions on zoning by-laws for additional residential units, on e-Laws

Extra units allowed is in the free check as a summary of the Township's rule, from our hand-kept table of city rules, and the full report reads the lot's zone where the Township's zoning map is open data we can use; where it isn't, the report's line says where the Township 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