Brockville: questions buyers ask
What records explain additional dwelling units at a Brockville home?
Section 3.4 of the City's Comprehensive Zoning By-law 050-2014, its definition of an additional dwelling unit, and the City's planning page on development charges.
Sources checked October 29, 2026
The rule in Brockville
Up to 3 homes on a lot
Brockville zoning by-law 050-2014 s.3.4: permits up to two additional dwelling units wherever a single-detached, semi-detached, townhouse or linked dwelling is permitted, either two in the main dwelling or one there and one in an accessory building, with no more than one parking space each (tandem allowed); additional units may not house short term vacation rental guests.
From Brockville by-law 050-2014 s.3.4, checked 29 Oct 2026
- The recordAdditional dwelling units
- Where to read itZoning By-law 050-2014, Section 3: General Provisions; Zoning By-law 050-2014, Section 2: Definitions and 1 more
- The free check reads itPick “Extra units allowed”
What the record shows
Section 3.4 of the Zoning By-law says additional dwelling units are permitted in all areas where a single-detached, semi-detached, townhouse or linked dwelling is permitted: at most two on a lot, either one inside the main dwelling and one in a separate accessory building, or two inside the main dwelling. Each needs no more than one parking space of its own, which may be tandem, and where the by-law limits lot coverage on a parcel of urban residential land the limit rises to 45 percent. The by-law defines an additional dwelling unit as a self-contained unit with its own kitchen, washroom and separate entrance, including an additional residential unit under the Planning Act.
The by-law also says a dwelling unit below grade may need a permit from the conservation authority where it is in the authority's screening area on Appendix 1, and that additional dwelling units may not be used to accommodate short term vacation rental guests. The City's planning page says second and third units on lots with single, semi-detached or row houses are exempt from development charges. 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 050-2014, Section 3: General Provisions: additional dwelling units (3.4), basement units and short term vacation rentals (PDF)
- Zoning By-law 050-2014, Section 2: Definitions: the definition of an additional dwelling unit (PDF)
- Planning Department: the City's planning page, with the zoning by-law, its maps and the development charge exemptions
What OfferDue covers in Brockville
Extra units allowed is in the free check as a summary of the City's rule, from our hand-kept table of city rules, and the full report reads the lot's zone where the City's zoning map is open data we can use; where it isn't, the report's line says where the City 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.