Installing a flagpole in Canada: permits, footing and frost

Installing a flagpole in Canada involves three levels of rules and one natural force. The provinces write the building codes, the municipalities write the zoning bylaws and issue permits, and in apartment and condominium buildings the building’s own rules apply. The natural force is frost: in most of Canada, the ground freezes deep enough in winter to lift a shallow footing. This guide describes what applies; the municipality and the pole’s manufacturer can say what fits a particular site.

Building permits: a provincial matter

There is no Canada-wide rule on permits for flagpoles; each province and territory has its own building code. In Ontario, for example, the Building Code (O. Reg. 163/24) adopts the National Building Code 2020 with Ontario amendments, and the Building Code Act, 1992 defines a building as a structure occupying more than ten square metres consisting of a wall, roof and floor or a structural system serving that function, a smaller structure with plumbing, or a structure designated in the building code. Whether a particular flagpole needs a building permit is decided by the municipality’s building department under the provincial code. The Canadian flagpole maker Flag Outlet says its engineers can supply an engineer’s letter to help obtain a city permit when required.

Zoning bylaws: a municipal matter

Where a flagpole may stand and how high it may be is set in the zoning bylaw of each municipality. Two examples:

• Toronto: in residential zones, antennae, flagpoles, satellite dishes and weather vanes on the roof of a building may exceed the building’s permitted maximum height by 1.5 metres (Zoning By-law 569-2013, 10.5.40.10).
• Saint-Philippe, Québec: in residential zones, flagpoles are allowed as accessory structures, one per lot, up to 10 metres above the adjacent ground and no more than 3 metres above the main building (Règlement de zonage no 401, articles 268 to 270).

Company flags can also fall under a municipality’s sign bylaw. More in the guide to flagpoles for businesses.

Condominiums, strata and rented homes

In a condominium, strata or co-operative, and in a rented home, the rules of the building or the lease can also apply to a flagpole or a flag. The National Flag of Canada Act encourages every person in control of an apartment building, condominium, other multiple-residence building or gated community to allow the National Flag to be displayed in accordance with flag protocol. It encourages; it does not override the rules of the building.

Locates before digging

Buried power, gas, water and telecommunications lines are located before a footing is dug. The Click Before You Dig portal lists the notification centre for each province and territory, among them Ontario One Call, Info-Excavation in Québec, which the portal also lists for New Brunswick and Nova Scotia, and BC 1 Call. The portal is provided by the Canadian One-Call Centres Committee with the Canadian Common Ground Alliance. In Ontario, the Ontario Underground Infrastructure Notification System Act, 2012 covers anyone who digs, including homeowners: no fee may be charged for a locate request, and for a standard request the owners of underground infrastructure mark their lines or confirm that they are not affected within five business days. Flag Outlet’s instructions list a call to the utility companies among the first steps.

The footing and the frost line

In Canada’s climate, the depth of the footing is critical. A Canadian flag company notes that if the concrete does not extend below the frost line – which varies by province but is often about 4 feet (1.2 m) – the freeze-thaw cycle of winter can heave the footing out of the ground and leave the pole leaning. The local building department knows the frost depth for its area.

Flag Outlet’s installation instructions for a 25-foot pole describe:

1. a hole about 3.5 feet deep and 14 inches wide, dug with an auger or by hydrovac, which does not require compacting the soil
2. about 6 inches of gravel at the bottom for drainage
3. a cardboard form tube at the top to bring the concrete above ground level
4. 28 MPa concrete with ¾-inch aggregate, about a fifth of a cubic metre
5. a small dome on top of the concrete so that water drains away
6. the anchor bolt assembly set level in the wet concrete
7. 48 hours for the concrete to cure before the pole is raised

For taller poles set in a sleeve, Flag Outlet’s anchoring table gives deeper footings, from 48 inches for a 35-foot pole to 96 inches for an 80-foot pole. The instructions also mention an optional lightning kit with a grounding pin and cable set in the footing.

Siting

• Clearance: Flag Outlet’s instructions describe a minimum distance between the flag and any other flagpole or structure of the flag’s length plus one foot.
• Visibility: the Gouvernement du Québec’s guidance for public buildings says a flag should dominate its surroundings: not overshadowed by walls or trees, not next to lamp posts, antennas or utility poles, not flying in front of a window, and clear of the main façade and the street.
• Overhead lines: a pole and the people raising it stay well clear of overhead power lines; the distances are in the guide to flagpole safety.

Raising the pole

A short sectional pole is assembled by hand and set in its ground sleeve. A taller pole is lifted by a crane or a crew, or tilted up on a tilt base, and then checked with a level: Flag Outlet’s instructions describe shimming the base until the pole stands plumb. Poles on roofs, according to the Gouvernement du Québec, are fixed directly to the roof or to the inner face of a parapet, taking the height of the building and the capacity of the structure into account. Getting the pole to the site is covered in the guide to transporting a flagpole.