Tecumseh zoning for small homes

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 · Tecumseh’s term: “detached additional residential unit”

Up to two additional residential units are permitted with a detached, semi-detached or townhouse dwelling, one of which may be in a separate accessory building, on lots with full municipal water and sanitary services. In Agricultural zones and on lots without full municipal services, only one additional unit is allowed and it must be inside the principal dwelling. [1][2]

Maximum size: 100.0 m2 gross floor area and no greater than 50% of the principal dwelling (s. 5.2.2.5.j) [3]
Maximum height: 6.5 m (s. 5.2.2.5.i) [3]
Where allowed: Rear yard and interior side yard only (front or interior side yard within the Lake St. Clair Sightlines overlay) (s. 5.2.2.5.c) [3]
Setbacks: Minimum 1.5 m from interior side and rear lot lines; 3.0 m for a 2-storey unit with windows facing those lot lines; 0.5 m from the rear lot line if above the first storey of an accessory building abutting a rear laneway (s. 5.2.2.5.d, .e, .g) [3]
Separation from house: Minimum 3.0 m from the principal dwelling and from any other building containing a dwelling unit (s. 5.2.2.5.b, .h) [3]
Servicing: Must connect to and use the municipal sanitary and water services on the lot; not permitted in an accessory building in Agricultural zones or on lots without full municipal water and sanitary services (s. 5.2.1, 5.2.2.5.k) [3]
Number allowed: Up to two additional residential units per lot, a maximum of one of them in a separate accessory building; no other garden suite or accessory-building unit on the lot (s. 5.2.2.1, 5.2.2.5.a) [3]
Parking: 1.0 space for the first additional residential unit in addition to the principal dwelling's parking; none for other additional units (Section 6 table) [3]
Approvals: Building permit; a Conservation Authority permit is also required within a regulated area (s. 5.2.2.5.l, 5.2.2.7) [3]

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. [4][5][6]

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 · Tecumseh’s term: “detached dwelling”

The lot and building requirement tables for the residential zones (RH, R1-R3 and the Tecumseh Hamlet zones) set lot area, frontage, coverage, height and yards, but no minimum dwelling unit floor area. The by-law text searched contains no minimum floor area for detached dwellings.

Minimum dwelling size: None set in the residential zone lot and building requirement tables (Tables 7-4 to 7-6) [3]
Minimum lot size: R1/R2: 450.0 m2 and 15.0 m frontage; RH: 1,858.0 m2 and 30.0 m frontage for detached dwellings (Table 7-4) [3]

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. [4][7][8][9][10][11][12]

Tiny home on wheels or park model

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

Not allowed · Tecumseh’s term: “mobile home / recreational vehicle / trailer”

Mobile homes are prohibited except where specifically listed as a permitted use in a zone, and none of the zone permitted-use lists searched includes them. Using a truck, recreational vehicle, transport trailer, bus or other vehicle for human habitation is prohibited, whether or not it is on wheels; the by-law defines a garden suite but does not list it as a permitted use.

Where allowed: Mobile homes prohibited except where specifically listed as a permitted use in a zone; no zone lists them (s. 4.10.6) [3]
Approvals: Use of a truck, recreational vehicle, transport trailer, bus, coach, streetcar body or other vehicle for human habitation is prohibited, whether mounted on wheels or not (s. 4.10.7) [3]

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. [12][7][4][9][8]

Bunkie or sleeping cabin

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

Not allowed · Tecumseh’s term: “accessory building”

An accessory building or structure may not be used for human habitation except where the by-law specifically permits it, and the only habitable detached accessory building provided for is a detached additional residential unit.

Maximum height: Accessory buildings: 4.5 m in Residential zones, 11.0 m in other zones (s. 4.1.3) [3]
Approvals: Accessory buildings shall not be used for human habitation except where specifically permitted by the by-law (s. 4.1.1.2) [3]

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. [9][7][4][13]

Official links

Last confirmed October 2026.

Notes and caveats

New Comprehensive Zoning By-law 2026-050 was passed September 15, 2026 and replaces the three former-municipality by-laws (1746, St. Clair Beach 2065, Sandwich South 85-18). Research used the by-law text with schedules posted on the Town's Zoning page (PDF dated September 2026). The notice of passing set an OLT appeal deadline of October 12, 2026; whether any appeal was filed could not be confirmed online (the Town's eScribe meeting portal returned a Cloudflare challenge / HTTP 403 to a plain fetch), so parts could be under appeal. Section numbers are as read from the posted PDF.

Sources

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Tecumseh zoning for small homes

Backyard suite

Ontario-wide rule

Tiny home on a foundation

Ontario-wide rule

Tiny home on wheels or park model

Ontario-wide rule

Bunkie or sleeping cabin

Ontario-wide rule

Official links

Sources

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