RT: Residential Transition

What the zone allows

Homes allowed

One house or one mobile home a lot (s. 7.03.4), with a secondary suite (s. 7.03.2(b)) and, for a relative who needs care, an accessory mobile home (s. 7.03.2(c), s. 4.18)

Main uses

A house or a mobile home, farming (no feedlots, and no pigs, sheep, poultry, fur-bearing animals or mushrooms raised for sale), harvesting, moving and storing timber and silviculture; a home-based business, a secondary suite, an accessory mobile home for a relative requiring care, other accessory uses (ss. 7.03.1, 7.03.2)

Smallest lot for a subdivision

2.0 ha (s. 7.03.3(a))

Exceptions (1)

• Seven developed lots the bylaw names are deemed to meet it, but can't be subdivided further for homes, and their undeveloped land can't be developed

Listed in s. 7.03.3(b) of the bylaw.

Lot coverage

30% for buildings and structures; accessory buildings 185 m² in all at most (s. 7.03.6(c))

Height limit

House or mobile home 7.6 m; accessory buildings 4.5 m (s. 7.03.6(a), (b))

Setbacks

Main and accessory buildings alike: front 7.5 m, rear 9.0 m, sides 7.5 m; accessory buildings 1.0 m from the main building (s. 7.03.5)

A house is at least 5.5 m across (s. 7.03.6(d)). A mobile home is one built to CSA Z240 MH, not a recreational vehicle or a manufactured home (s. 3.04).

Accessory mobile home for a relative requiring care (s. 4.18): one a lot, single-wide, at most 4.3 m wide and 91 m², on a non-permanent foundation without a basement, only where the owner lives on the lot; it needs a housing agreement registered on title to remove it within 90 days once no longer needed, a temporary building permit renewed yearly with a doctor's letter, and a $5,000 letter of credit; 2.0 ha at least where the lot isn't on community water and sewer.

A secondary suite has its own entrance and a building permit, and one parking space on the lot; at most one per main home (Part 4, s. 4.17).

No wrecking or repairing vehicles on the lot, and at most three derelict vehicles, kept out of the front yard (s. 7.03.7).

A lot under 2.0 ha is connected to City sewer (s. 5.01.4).

Parts 4 (general regulations), 5 (parcel areas) and 6 (parking) of the bylaw also apply; short-term rental isn't a use the zone lists, so ask the City before renting a home by the night.

Site-specific exceptions listed in the bylaw by legal description can add or change uses for one property, and development permit areas, the ALR and building rules apply on top. Confirm with the City of Cranbrook's planning department before you buy or build.

Source: Part 7.03 of City of Cranbrook Zoning Bylaw No. 3977, 2019 (summarised in our words, checked 2026-10-06); zone map: Open Government Licence – British Columbia (named by the City of Cranbrook).