North Bay: questions buyers ask
What records explain additional dwelling units at a North Bay home?
Section 3.20.2 of Zoning By-law 2015-30, as amended by By-law 2025-37 (office consolidation of 15 July 2026), and the City's Additional Dwelling Units page.
Sources checked October 29, 2026
The rule in North Bay
Up to 4 homes on a lot
North Bay zoning by-law 2015-30 (as amended by 2025-37): permits up to three additional dwelling units (four units in all) in or beside a single-detached, semi-detached or townhouse dwelling on a lot in the urban settlement area connected to municipal services, and one additional unit in the rural area; each unit is registered with the City, with no fee.
From North Bay by-law 2015-30 (as amended by 2025-37), checked 29 Oct 2026
- The recordAdditional dwelling units
- Where to read itAdditional Dwelling Units (ADUs); By-law 2025-37 and 2 more
- The free check reads itPick “Extra units allowed”
What the record shows
By-law 2025-37, passed on 8 April 2025, amends section 3.20.2.1 of the zoning by-law: an additional residential dwelling unit may be in a single-detached, semi-detached or townhouse dwelling or an accessory building to it, with at most three additional units per property in the urban settlement area connected to municipal services, and one per property in the rural area. The City's page puts it as up to three in the main dwelling, or two in it and one in an accessory building, four units in all, and says detached units in the urban area can now be as large as the main home after provincial changes to Ontario Regulation 299/19. Additional units are not permitted in the Parkland, Open Space, Rural Residential Lakefront, Floodway or Floodplain and Erosion zones, or on unserviced lots in the Trout Lake Influence Area.
The by-law says a unit that was illegal when it passed must meet all the criteria and receive a change of use permit under the Building Code to be a legal additional unit, and the City's questions-and-answers sheet says every unit must be registered with the City, with no fee for the registration. A permission in the zone does not make an existing basement apartment lawful; the change of use permit and the registration are the records that do.
Where to read it yourself
- Additional Dwelling Units (ADUs): the City's page on how many units are permitted, with the registration form
- By-law 2025-37: the zoning amendment for additional dwelling units (PDF)
- Zoning By-law 2015-30, office consolidation July 15, 2026: section 3.20.2, additional residential dwelling units (PDF)
- FAQs on ADUs: the City's questions and answers, registration included (PDF)
What OfferDue covers in North Bay
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.