Secondary Suite Electrical Requirements and Cost in Vancouver

The subpanel is not optional

A legal secondary suite needs its own dedicated electrical subpanel, typically 60 to 100 amps, fed off the main house panel. This isn't a matter of running extra circuits off the existing panel. It's a physically separate panel that isolates the suite's electrical load and gives an inspector a clean point to verify code compliance.

The City of North Vancouver treats the dedicated subpanel as a non-negotiable baseline requirement for any new suite. The District of North Vancouver expects the same in practice, even where its written requirements differ from the City's in other areas like exterior access configuration.

When a service upgrade has to come first

A lot of North Shore homes built before the 1990s still run a 100-amp main electrical service. Add a suite subpanel drawing 60 to 100 amps on top of what the main house already uses, and a 100-amp service usually can't carry both loads without exceeding capacity. In that case, the main service has to go to 200 amps before the suite subpanel gets installed.

A straightforward 100-to-200-amp service and panel upgrade runs $3,000 to $5,000, including BC Hydro's side of the connection. That number climbs, sometimes to $7,000 or more, when the mast, meter base, or the service run to the house also needs replacing, which is common enough on older properties that we check it during the initial site assessment rather than assume a clean upgrade.

The metering decision: shared or separate

You have two options for how the suite gets its power measured, and there's no code requirement forcing either one. Run the suite off the main house's existing BC Hydro meter, meaning you pay one combined hydro bill and either build utilities into the rent or bill the tenant an estimated share. Or install a second, separate BC Hydro meter dedicated to the suite, giving clean, independent billing.

A separate meter adds $2,000 to $3,500 for the meter base, panel configuration, and BC Hydro's setup fee. Most owners we work with on the North Shore choose shared metering instead. It's simpler to install, avoids a second monthly utility relationship, and tenants generally prefer a flat, predictable number in the rent over a variable hydro bill they can't estimate in advance.

What the subpanel actually has to power

Beyond the panel itself, code requires dedicated circuits for the suite's kitchen appliances (range, dishwasher, refrigerator), bathroom ventilation, and its own lighting and receptacle circuits, separate from the main house. None of this is unusual for a kitchen and bathroom build generally, but on a suite it all has to trace back to the suite's own subpanel, not borrow capacity from the main house circuits nearby.

Smoke and CO detection is the item that gets missed most often in unpermitted or DIY suite work. BC Building Code requires hardwired, interconnected smoke and CO alarms between the suite and the main dwelling, so that an alarm triggered anywhere in the building sounds throughout the entire building, not just in the unit where it went off. This is a life-safety requirement, not an electrical nicety, and it's one of the first things an inspector checks at final sign-off.

Sequencing the electrical work

We sequence suite electrical work in a fixed order because getting it wrong means redoing finished work: service upgrade first if the main panel can't carry the added load, then subpanel installation, then rough-in wiring for the suite's circuits, then the metering decision executed alongside BC Hydro's schedule (which runs on its own timeline, separate from your contractor's), then final connections and the interconnected alarm system last, once drywall is up and both units are functionally complete.