What Hamilton’s guidance says
Hamilton’s additional dwelling unit page describes an exemption from additional parking spaces for a property with up to three units. The page also identifies a review condition tied to newer buildings and the relevant bylaw date. That makes the unit count alone an incomplete answer: the property’s existing building, approval history, current zoning rules, and the exact proposal can affect which provision applies.
Start with the parcel, the number and type of existing and proposed units, and the date the principal building was established or approved. Check the current Zoning By-law and the City’s current additional dwelling unit guidance together. If the property falls within a date-based exception or another identified review case, ask Planning staff which parking standard applies before assuming the general exemption controls.
Parking exemption does not settle site access
Even if no additional parking space is required for the unit, the proposal may still need a legal and workable driveway, lane, pedestrian route, or emergency-access arrangement. A space removed from the principal dwelling, shared parking, and access across another lot are separate facts to document. A parking exemption is not a fire-access or site-plan approval.
Keep a copy of the current bylaw provision, the City page checked, the property facts used, and any written interpretation from the City. The page is a starting point for Hamilton projects, not a parcel determination or a guarantee of permit approval. For the general method, see ADU parking requirements and waivers. Hamilton’s separate water-service review is covered in Hamilton ADU water service and capacity.