What records explain additional dwelling units at a Chatham-Kent home?

Section 4.6(3) of the zoning by-law sets the rules for additional dwellings. In the Residential Low Density (RL), Residential Medium Density (RM) and Urban Commercial (Office and Service) zones, where municipal water and sanitary sewers are provided, it permits up to four dwelling units in a single detached dwelling, with up to two in an accessory building, and up to three in a semi-detached or row house dwelling unit with one in an accessory building, and in each case no more than four on the property. Where a lot has an additional unit its lot coverage maximum is 45%, and the unit's parking space may be a tandem space.

In the Rural Residential, Estate Residential, Village Residential and Recreational and Lakeside Residential zones with municipal water, the by-law permits two units, either both in the house or one in the house and one in an accessory building, and in the Agricultural (A1) zone one additional unit inside a single detached dwelling. A general permission does not make an existing unit lawful; the building permit and inspection records are where that is answered.

• Comprehensive Zoning By-law: the Municipality's zoning page, with the by-law, its schedules and the zoning map
• Zoning By-law 216-2009: the by-law consolidated as of 27 April 2026, section 4.6 (PDF)

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