How do I plan electrical outlet placement for a finished basement in the GTA?

The Ontario Electrical Safety Code requires outlets every 1.8 metres (6 feet) along finished basement walls, measured along the wall from any point — and every wall section wider than 900 millimetres must have at least one outlet. Beyond meeting code minimums, smart outlet placement during the planning phase saves you from running extension cords and power bars after your basement is finished, which is both inconvenient and a fire hazard.

All electrical work in your finished basement must be done by an ESA-Licensed Electrical Contractor and inspected by the Electrical Safety Authority — this is Ontario law and is not optional. Your licensed electrician will handle code compliance, but you should provide a detailed furniture layout and room-use plan so they can position outlets where you'll actually need them rather than just meeting minimum spacing requirements. The best time to plan outlet placement is during the design phase, before framing begins, because running wire through open framing is straightforward, while adding outlets after drywall means cutting, patching, and repainting.

Start by mapping out each room's function and the electrical loads it will carry. A home entertainment area needs a cluster of outlets behind the TV location — ideally a recessed outlet box that allows the TV to mount flush against the wall. Add outlets at seating locations for device charging (floor outlets or outlets at sofa-back height are ideal for floating furniture layouts). A home office needs outlets at desk height (about 24 inches above the floor) rather than standard height (12 inches) so you're not crawling under the desk to plug in your computer. A home gym needs dedicated 20-amp outlets at equipment locations — treadmills and elliptical machines draw significant startup current and should not share circuits with other equipment.

Kitchen or wet bar areas in the basement require specific electrical code provisions. Counter outlets within 1.5 metres of a sink must be GFCI-protected (ground fault circuit interrupter), and you'll need dedicated 20-amp split circuits for counter receptacles, just like an upstairs kitchen. A bar fridge, dishwasher, and microwave each ideally get their own circuit to prevent nuisance tripping. This is an area where under-planning during rough-in creates expensive problems later — adding a circuit after the basement is finished means opening walls, which costs $300–$600 per additional outlet compared to $75–$150 during rough-in.

For lighting circuits, plan your pot light and switch layout at the same time as outlets. Most GTA basement renovations use 4-inch or 6-inch LED recessed pot lights spaced 4 to 6 feet apart, with one pot light for roughly every 20 to 25 square feet of floor space. Dimmer switches in entertainment areas and bedrooms are inexpensive to add during rough-in ($30–$60 for a dimmer versus a standard switch) and make a meaningful difference in the usability of the space. Three-way switches at the top and bottom of the stairs are code-required and just good sense.

Don't forget specialty electrical requirements: smoke and carbon monoxide detectors are required on every level of the home including the basement, outside every sleeping area, and inside every bedroom — and they must be interconnected with the rest of the home's alarm system. If you're adding a bathroom, the exhaust fan needs its own switch (often combined with a timer switch) and the fan must be vented to the exterior. USB outlets at key locations are a popular and inexpensive addition during rough-in.

Budget $3,000–$10,000 for basement electrical depending on the number of circuits, pot lights, and the complexity of your layout. If your existing electrical panel is at capacity — common in older GTA homes with 100-amp service — you may need a subpanel in the basement ($800–$1,500) or a full panel upgrade to 200 amps ($3,000–$5,000). Your electrician should assess panel capacity before planning the basement electrical layout.