Guides
The Rules, Before the Quote
What Ontario and your municipality actually require for a second unit, a separate entrance or an addition — read from the by-laws and fee schedules, with the sources listed.
Updated September 10, 2026
Legal Basement Apartment Requirements in Ontario, Municipality by Municipality
The provincial floor for a legal second unit, then what Milton, Mississauga, Oakville, Burlington, Hamilton, Toronto, Halton Hills and Cambridge each add.
Read the guide →Updated September 10, 2026
Separate Entrance or Walkout? Permits, Site Conditions and Which One Your Basement Needs
The difference between a separate basement entrance and a walkout, which one your lot can have, the permits involved in Ontario, and what drives the cost.
Read the guide →Have a Question About Your Address?
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