Home Additions in Barrie

Barrie is a single-tier city, so the City of Barrie Building Services checks the zoning on the application, issues the permit and carries out the inspections. We file the addition in APLI, the City’s online tool, and its email notices tell us each time the review moves.

If the lot is inside the regulated area of the Lake Simcoe Region Conservation Authority (LSRCA), yes, and the LSRCA permit comes before the Barrie building permit. The authority must publish maps of its regulated areas and review them at least once a year, so we check the current map against your survey. The west of the city is under the Nottawasaga Valley Conservation Authority. On those lots we make the same check with the authority that covers them.

Yes, if it fits the zoning, and that is the first thing we check. Barrie’s Comprehensive Zoning By-law 2009-141 was approved by City Council in August 2009. A Community Planning Permit System replaces it within the Allandale Major Transit Station Area only. Innisfil Zoning By-law 054-04 still applies to some Secondary Plan lands transferred to the City in 2009, and Springwater Zoning By-law 5000 and Oro-Medonte Zoning By-law 97-95 still apply to the boundary adjustment lands transferred to the City on January 1, 2026. We find the by-law for your lot and measure the addition against its setbacks, height and coverage. Inside the transit station area we confirm the planning permit route with the city; elsewhere a shortfall goes to the Committee of Adjustment as a minor variance.

Yes. We take on home additions across Barrie, including Allandale and Painswick, within an hour of our Richmond Hill office. The first consultation is free, by phone or on site.

Three things to start: property address and a survey, if you have one; what you want to add and where; and photos of the side of the house and the yard where it would go. Send those and we tell you what the City of Barrie Building Services will ask for before we quote.

It can. Barrie’s Private Tree By-law 2014-115 applies where trees are part of a woodlot of half an acre or larger, and it covers injuring them as well as removing them, so footings dug into the roots of woodlot trees on your side of the lot line can need the City’s approval first. We map those trees on the survey, and the addition either keeps clear of them or the tree question is settled before the City of Barrie Building Services reviews the drawings.

That depends on how the by-law for your lot defines coverage: By-law 2009-141 for most of Barrie, or an Innisfil, Springwater or Oro-Medonte by-law on some transferred land. We total the two footprints first, and if the sum runs over, the choice is a smaller porch or a minor variance, settled before the City of Barrie Building Services will issue the permit.

Possibly. Digging for the foundation and reshaping the ground around it is the kind of work Barrie’s site alteration by-law covers, and that by-law sits apart from the building permit. Early in the design we ask the City of Barrie Building Services whether the addition’s permit takes it in or a second application is needed, and the grading plan our P.Eng draws serves both.

The zoning sets the first limit: the height allowed in your zone, under By-law 2009-141 for most Barrie houses, measured from a point that by-law defines, so the levels on your survey decide how much room is left above the existing roof. The second is structural, since our P.Eng has to confirm the walls and footings below can carry another floor. The City of Barrie Building Services reviews the height and the stamped structure in the same permit set.

Possibly. Since November 21, 2025, Ontario has treated each minimum setback in a by-law as 90 per cent of its written distance on urban residential land, apart from the Greenbelt Area and some prescribed areas, and on a side yard that can widen an addition slightly. We take the setback for your zone from By-law 2009-141, confirm the lot qualifies, and draw to the reduced distance only once the City of Barrie Building Services agrees.