Decks
Check size / scopeKawartha Lakes requires a building permit for a deck 0.6 m (2 ft) or more above grade at any point; a deck below 0.6 m does not require a building permit, subject to septic and zoning constraints.
Kawartha Lakes, ON
Building permits in Kawartha Lakes
Kawartha Lakes publishes dedicated residential application guides for renovations, decks, accessory buildings and additional residential units.
Official sources checked Sep. 24, 2026
Permit rules by project
Pick the project that matches your work. These are starting rules for Kawartha Lakes; property-specific zoning, heritage and trade approvals can still apply.
Sheds & accessory buildings
Check size / scopeKawartha Lakes exempts qualifying residential storage sheds below 15 m², while its current accessory-building guide describes the exemption as up to 15 m².
Basement renovations
Depends on scopeKawartha Lakes distinguishes finish-only work from regulated alterations; internal renovations can also trigger septic review when bedrooms, plumbing fixtures or living space are added.
Secondary suites & ADUs
Depends on scopeKawartha Lakes states that in most cases a building permit will be required to establish an Additional Residential Unit, along with the City’s registration process.
Home additions
Permit requiredKawartha Lakes provides building-permit application routes for residential additions and requires permit review before regulated construction begins.
Interior alterations
Depends on scopeKawartha Lakes lists some finish-only interior work as no-permit work, while framing, fire-separation, plumbing and other regulated alterations can require permits.
Walls / structural work
Permit requiredStructural alterations fall within the Kawartha Lakes building-permit process rather than the finish-only exemptions.
Pools / hot tubs
Depends on scopeKawartha Lakes requires a municipal pool permit for a private swimming pool capable of containing more than 1.2 m of water; related decks and enclosures have separate requirements.
Garages / carports
Depends on scopeKawartha Lakes requires building permits for accessory buildings over 10 m² unless the structure qualifies for the separate residential storage-shed exemption. Garage scope and size determine the result.
Plumbing / HVAC
Depends on scopeKawartha Lakes lists like-for-like plumbing fixture and heating/cooling unit replacements among no-permit work, while altered systems or related renovation work can require permits.
Fences
Confirm with cityKawartha Lakes regulates pool fencing through its Pool By-law, but the City does not publish one citywide ordinary-fence building-permit statement that applies to every property.
Retaining walls
Confirm with cityKawartha Lakes does not publish one residential retaining-wall threshold that applies citywide. Confirm wall height, location, drainage and engineering requirements with Building Services.
Demolition
Permit requiredKawartha Lakes has a dedicated demolition permit application route for all building types or part thereof.
Apply or ask Kawartha Lakes
Use the municipality’s permit office for current forms, fees, drawings and questions about your property.
Your application route
Open the official permit page ↗Use the official permit page to confirm project requirements, forms, fees and the current application process.
Good to know in Kawartha Lakes
- The city states that work should not begin until a required permit has been issued.
- Ontario cities administer building permits under the provincial code framework. A building permit does not automatically resolve zoning or every trade, conservation, heritage or utility approval.
Official sources
Use these official links to confirm the current rule for your Kawartha Lakes property.
View 3 official sources
Sources checked Sep. 24, 2026. Requirements can change; the municipality makes the final permit decision.
Need a different city?
Search another Canadian municipality.