Powassan zoning for small homes

Municipality of Powassan, a single-tier municipality. Population 3,346 (2021 census).

Backyard suite

A separate home in the yard of a house: garden suite, laneway suite or coach house, including prefab, modular or container units used this way.

Allowed with limits · Powassan’s term: “secondary dwelling unit (in a detached garage)”

A secondary dwelling unit in a detached building is permitted only within a detached private garage in the Rural (RU) zone; otherwise the by-law prohibits use of an accessory building as a dwelling unit. Secondary units inside the house are permitted in the RU, RV1 and RV2 zones. Ontario's Planning Act (s. 35.1) overrides zoning provisions that would prohibit one unit in a building ancillary to a house on serviced urban land. [1][2]

Where allowed: Within a detached private garage, Rural (RU) zone only (s. 3.37) [1]
Number allowed: One secondary dwelling unit (s. 3.37) [1]
Maximum size: No greater than 50% of the garage's ground floor area, to a maximum of 50 m², located entirely above grade (s. 3.37 b) [1]
Parking: Minimum three parking spaces on the lot (s. 3.37 d) [1]
Servicing: Both units connected to the same septic system, confirmed by a septic permit (s. 3.37 f) [1]
Approvals: Use of any accessory building or structure as a dwelling unit is otherwise prohibited (s. 3.23 c) [1]

Ontario-wide rule

Ontario law stops municipalities from banning one residential unit in a building ancillary to a detached house, semi-detached house or rowhouse on a parcel of urban residential land, as long as the lot has no more than three units in total. Municipalities still set most other zoning rules, but provincial law limits parking requirements, minimum unit size, lot coverage and separation distances. These units are also exempt from development charges and parkland dedication. [2][3][4]

Tiny home on a foundation

A small house as the main home on its own lot. The key rule is any minimum dwelling size.

Allowed · Powassan’s term: “single detached dwelling”

The RV1, RV2 and RU zone regulations set no minimum floor area for a single detached dwelling. A mobile home used as a dwelling must have at least 65 m² of ground floor area. [1]

Minimum dwelling size: None listed in Village Residential (RV1, RV2) or Rural (RU) zone regulations (s. 4.1.2, 4.2, 4.4.2) [1]
Minimum dwelling size: Mobile/modular homes: at least 65 m² ground floor area, on permanent foundations (s. 3.15) [1]

Ontario-wide rule

Ontario law sets no minimum total size for a house that is the main dwelling. The Building Code sets minimum room areas, so the smallest compliant dwelling is roughly 17.5 m² by the Province's own estimate. Municipalities may still set minimum floor areas for main dwellings in their zoning by-laws. The provincial ban on minimum sizes covers only additional residential units. [2][5][6][7][8][9][10]

Tiny home on wheels or park model

Living full-time in a tiny home on wheels or a park model home.

Not allowed · Powassan’s term: “trailer / motor home / mobile home”

The by-law prohibits using any trailer or motor vehicle for human habitation unless in a zone authorizing it, and prohibits trailer parks and mobile home parks unless specified elsewhere; no residential zone authorizes them. Mobile homes may be dwellings only on permanent foundations with running gear removed and at least 65 m² of ground floor area. [1]

Where allowed: Trailer parks and mobile home parks prohibited unless specified elsewhere in the by-law (s. 3.34) [1]
Minimum dwelling size: Mobile homes: CSA Z240 or A-277, permanent foundation, running gear removed, at least 65 m² ground floor area, fully serviced (s. 3.15) [1]
Temporary garden suite: Not addressed; a travel trailer may be occupied for up to one year while a damaged dwelling is rebuilt, if licensed by the Municipality (s. 3.32) [1]
Approvals: Use of any trailer for human habitation prohibited except in a zone authorizing it; use of any motor vehicle for human habitation prohibited (s. 3.23 a-b) [1]

Ontario-wide rule

Ontario has no single rule for living full-time in a tiny home on wheels. A unit on wheels can count as a 'building' that needs a permit and must meet the Building Code once it stays in one place, is hooked up to services or is anchored. Park model trailers are recognized only as seasonal recreational buildings. Municipalities may allow a portable garden suite under a temporary-use by-law for up to 20 years, with extensions of up to 3 years each. [10][5][2][7][6]

Bunkie or sleeping cabin

A small sleeping building with no kitchen, usually beside a cottage or house.

Not allowed · Powassan’s term: “guest cabin”

Accessory buildings may not be used for human habitation except where specifically permitted, and the by-law defines a 'guest cabin' but does not list it as a permitted use in any zone. Bunkies are mentioned only as part of a commercial cottage establishment. [1]

Where allowed: 'Guest Cabin' is defined (s. 5.63) but no zone lists it as a permitted use [1]
Approvals: Accessory buildings shall not be used for human habitation except where specifically permitted (s. 3.1 a ii); use of any accessory building as a dwelling unit prohibited (s. 3.23 c) [1]

Ontario-wide rule

Ontario law has no rule written specifically for bunkies or sleeping cabins. Whether one needs a building permit depends on the Building Code Act's definition of 'building' and the Code's shed exemption. That exemption covers only storage-use sheds, so it does not cover a structure used for sleeping. Municipal zoning rules for accessory buildings still apply. [7][5][2][11]

Official links

Last confirmed October 2026.

Notes and caveats

Read the July 2, 2019 consolidation (By-law 2019-19); amendments after July 2019 are not included and no later consolidation is posted on https://www.powassan.net/building-and-investing-here/planning-and-development/zoning/. The 'Additional Dwelling Units' page (https://www.powassan.net/building-and-investing-here/building-and-renovating/additional-dwelling-units/) loads with no body content, so guideUrl is null. Planning Act s. 35.1 (as amended in 2022) permits additional residential units, including one in an ancillary building, on parcels with full municipal services regardless of by-law limits; the 2019 text predates this and may be narrower than current law in the serviced village areas. Bunkie answer is based on the absence of any permission for a guest cabin; staff interpretation not confirmed.

Sources

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