PlaceDossier / Questions

Can I build a bunkie or guest cottage on my property in BC?

Only where the zone says so: some bylaws allow a small guest cottage or guest house beside the house, others say no accessory building may be lived in at all.

Opens the lot's report at this answer. If an address isn't found, try the PID, the 9-digit parcel number on the land title or assessment notice.

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What the answer means

BC has no province-wide rule for a bunkie or sleeping cabin: each zoning bylaw decides whether a detached building may be slept in, by whom, how big and for how many days. A kitchen or bathroom can make it a second home in the bylaw's eyes, and a building permit depends on its size and what's in it.

The zone decides
A zoning bylaw lists the uses and buildings each zone allows. Some list a guest cottage, guest house or seasonal cottage beside the house, with its own size and stay limits; many say an accessory building is for storage or a workshop and may not be lived in (our reading of the bylaws we've summarised).
A guest house allowed
The RDEK's SweetWater bylaw allows, in its large-lot zone, a guest house: an accessory building under 50 m² with at most two sleeping units, not meant to be lived in year round, up to 7 m tall (Bylaw No. 2127 s. 3.03).
A guest cottage with limits
Piers Island's bylaw allows one detached auxiliary guest cottage of up to 37 m² per lot, for visitors who live elsewhere and stay free of charge, each for no more than 45 days a year and 30 in a row (Bylaw No. 373 s. 3.8). Salt Spring's allows a seasonal cottage of up to 56 m² only on a lot of 1.2 ha or more, for temporary stays, never rented apart from a bed and breakfast (Bylaw No. 355 s. 3.14).
Not lived in at all
Salt Spring's bylaw says no accessory building may be lived in unless the bylaw allows it, and none may hold a kitchen, shower or bath (Bylaw No. 355 ss. 3.12.3 to 3.12.5). Hornby's has no guest cottage and lets no accessory building be lived in; housing a relative beside the house takes a temporary use permit (Bylaw No. 150 ss. 3.2 (1) (c), 10.2 (6)).
Kitchen and bathroom
Many bylaws define a dwelling unit by its cooking facilities, so a bunkie with a kitchen can count as a second home and take the zone's limit on homes (our reading). Where a zone allows a second home or a detached suite, that route has its own rules: see a suite or a second home. A local government's house zones must allow a secondary suite or a detached second home (Local Government Act s. 481.3 (3)), but that floor doesn't apply under the Islands Trust, a rural land use bylaw or on ALR land (see small-scale housing).
The building permit
Where a building bylaw applies, its own size rule decides: the City of Nanaimo, for one, needs no permit for a detached building under 10 m² that creates no hazard, though it must meet the zone's setbacks and height; plumbing, or heating and insulation, bring requirements like a house's, and an accessory building isn't allowed without a house or other principal use (its accessory building handout, revised March 2025). Many rural areas have no building inspection at all: see building permits.
Septic and water
A bunkie with a toilet or sink adds flow to the septic system, and a bedroom outside the house can count toward its design: see a suite on a septic system (our reading).
Renting it out
Renting a bunkie by the night is a short-term rental: the zone and the principal residence rule decide it (see short-term rentals). Piers Island's and Salt Spring's bylaws above bar renting the cottage to travellers.
On ALR land
A sleeping building on ALR land counts against the reserve's limits on homes and accommodation (our reading): see the ALR and a suite or a second home.
What a report shows
A report names the lot's zone where the local map is open and, for the bylaws we've summarised, how many homes the zone allows and its notes on guest cottages and accessory buildings.

Our summary of the bylaws named (as our zone pages summarise them), the Local Government Act (s. 481.3) and the City of Nanaimo's Accessory Buildings – Residential handout (revised March 2025), read 2026-10-23. Each zone and building bylaw differs: ask yours.

Sources (read 2026-10-23; summarised in our own words unless noted): SweetWater Zoning & Floodplain Management Bylaw No. 2127, Regional District of East Kootenay (our summary); Piers Island Land Use Bylaw No. 373, Salt Spring Island Local Trust Committee (our summary); Salt Spring Island Land Use Bylaw No. 355, Salt Spring Island Local Trust Committee (our summary); Hornby Island Land Use Bylaw No. 150, Hornby Island Local Trust Committee (our summary); Local Government Act, RSBC 2015, c. 1, s. 481.3; Accessory Buildings – Residential: Requirements for Building Permit, City of Nanaimo.

Before you buy: who to ask

The local government
Does the zone allow a guest cottage, guest house or any sleeping building beside the house, how big and for whom? Does the existing bunkie have a permit, and would it need one?
The seller or their agent
When was the bunkie built, with what permits, and is it plumbed or on the septic system? Has anyone lived in it or rented it?

Look up the lot above: its report names the zone where the local map is open, and links our summary of its rules.

See also sheds, shops and garages, a suite or a second home, RVs and tiny homes, building permits, a suite on a septic system, short-term rentals and the Islands Trust.