This page summarizes Cambridge permit information. Use the official city links for the current rules on your address and project.
Cambridge’s published permit rules, in plain English:
Cambridge says structures larger than 10 m² or structures containing plumbing are among projects that can require a building permit.
The city’s Application Navigator can assemble property- and project-specific permit information.
Cambridge uses Ontario's provincial building-code framework. See the Ontario permit overview for province-wide context; this page focuses on Cambridge's municipal process and property-specific approvals.
Key items named by the municipal source:
Choose a project below. “Dedicated municipal source” opens a project-specific city page; “Municipal permit hub” opens the broader official permit source.
For a deck in Cambridge, height above grade, attachment to the house, roof/cover, guards, stairs and structural work can change the permit path. The municipal source below is the authority for the local threshold and drawings.
Open Cambridge’s municipal permit hub ↗Read the general Canada planning guide →For a shed or accessory structure in Cambridge, check size, plumbing, attachment, intended use, height and zoning setbacks. A small storage-shed exemption in one municipality should never be copied into another.
Open Cambridge’s municipal permit hub ↗Read the general Canada planning guide →For a basement project in Cambridge, separate cosmetic finishing from structural work, new plumbing, a new entrance, underpinning or a new dwelling unit. Those changes can move the project into a different permit category.
Open Cambridge’s municipal permit hub ↗Read the general Canada planning guide →For a secondary suite or other additional dwelling unit in Cambridge, confirm zoning, building-permit, fire/life-safety, egress and trade requirements. Do not treat it as an ordinary basement finish.
Open Cambridge’s municipal permit hub ↗Read the general Canada planning guide →For an addition in Cambridge, expect the municipality to review the added floor area or footprint along with zoning, site conditions, drawings and structural design. Use the local source before paying for final plans.
Open Cambridge’s municipal permit hub ↗Read the general Canada planning guide →For interior alterations in Cambridge, cosmetic work may be treated differently from walls, exits, fire separations, occupancy, plumbing or structural changes. Match the permit question to the actual scope.
Open Cambridge’s municipal permit hub ↗Read the general Canada planning guide →For structural work in Cambridge, removing or adding walls, changing openings, altering framing/foundations or changing load paths should be checked as building-permit work rather than cosmetic renovation.
Open Cambridge’s municipal permit hub ↗Read the general Canada planning guide →For a pool or hot tub in Cambridge, check more than the pool itself: enclosure/fence, zoning, grading, setbacks and site-alteration approvals may have separate rules.
Open Cambridge’s municipal permit hub ↗Read the general Canada planning guide →For a garage or carport in Cambridge, size, attachment, setbacks, plumbing and structural design can change both zoning and building-permit requirements.
Open Cambridge’s municipal permit hub ↗Read the general Canada planning guide →Cambridge says structures larger than 10 m² or structures containing plumbing are among projects that can require a building permit.
Open Cambridge’s municipal permit hub ↗Read the general Canada planning guide →0 project cards use a verified dedicated municipal/project source; 10 use Cambridge’s broader official permit source.
Source-label rule: “Dedicated municipal source” means we verified a project-specific Cambridge page. “Municipal permit hub” means the municipality publishes the answer through a broader permit page or portal. We do not invent a project URL.
Primary authority: Cambridge’s official municipal permit information. Project links are labelled by source depth.
Cambridge uses Ontario's provincial building-code framework. See the Ontario permit overview for province-wide context; this page focuses on Cambridge's municipal process and property-specific approvals.
Open primary Cambridge source ↗How Home Permits Canada fact-checks pages →Use these Cambridge municipal links before you spend money on final drawings, materials or construction. They are the authority for the current local process.
Cambridge sources checked September 13, 2026. Use the linked municipal pages for current forms, fees and rules; Home Permits Canada is independent.
