LGD Electric / Modernization / Basement Suite Electrical Permit
Basement Suite Electrical Permit in Vancouver: load calc, sub-panel and legalization.
Adding or legalizing a secondary suite in the City of Vancouver almost always triggers an electrical permit under the City of Vancouver system (not Technical Safety BC). The reason is structural: a dwelling with two separate habitable units must pass a Canadian Electrical Code Section 8 load calculation that accounts for the main dwelling and the suite as a single combined service, plus a dedicated sub-panel for the suite with its own bonding and grounding. Many older Vancouver homes on 60A or 100A service cannot support a compliant secondary suite without a 200A main panel upgrade first. LGD pulls the City of Vancouver electrical permit, runs the CEC Section 8 calc, installs the suite sub-panel and coordinates the final inspection.
When a suite triggers an electrical permit
Any new wiring, sub-panel change or renovation in a Vancouver secondary suite triggers a City of Vancouver electrical permit. Legalizing a previously unpermitted suite usually triggers a full inspection plus whatever remediation the inspector calls for. For zoning questions, contact City of Vancouver planning. LGD handles the electrical side.
CEC Section 8 load calculation
The load calculation is the gate: a Vancouver home with a gas furnace, electric range, dryer and a new secondary suite with its own range, dryer and HVAC typically pushes past 100A demand under CEC Section 8, which requires a 200A service upgrade before the suite can be energized. LGD runs the full calc in writing before quoting any suite work.
CEC Section 8 sums every continuous and non-continuous load in the main dwelling and the suite, applies the allowed demand factors for additional dwelling units and produces a total amperage draw. Most older Vancouver homes on 60A or 100A service cannot support a compliant suite without a 200A upgrade. A newer home already on 200A often has room without touching the main.
Sub-panel vs separate meter
Sub-panel vs separate meter: two paths for powering a Vancouver secondary suite. A dedicated sub-panel fed from the main house panel is the simpler install and keeps the utility bill on a single account, which is how most owner-occupied suites are wired. A separate meter requires a second BC Hydro account, a second meter base and utility coordination. Only necessary when the suite and the main dwelling are billed separately or when strata-equivalent separation is required.
Panel upgrade: when 100A is not enough
Pre-1990 Vancouver character homes on 60A or 100A rarely have room for a compliant suite. A 200A upgrade becomes part of the scope. See our panel upgrade cost guide. LGD bundles the upgrade into a single permit and coordinates BC Hydro.
Laneway houses and garden suites
Same framework plus a feeder: the feeder from the main panel to the laneway building must be sized for voltage drop over the buried run, the conduit buried to bylaw depth and outdoor feeder installs carry GFCI protection requirements.
City of Vancouver permits (not TSBC)
Vancouver is one of the only BC cities that runs its own electrical permit system independent of Technical Safety BC. Every Vancouver secondary suite permit goes through City of Vancouver Development and Building Services. See our permit authority guide.
LGD process
- 01 Site visit: main panel, suite location, meter base.
- 02 CEC Section 8 load calc for combined dwelling plus suite.
- 03 Panel decision: keep existing or plan a 200A upgrade.
- 04 City of Vancouver permit pulled by LGD.
- 05 Install: sub-panel, AFCI and GFCI circuits, TR receptacles, smoke alarm interconnect.
- 06 Fire separation penetrations stopped to 1-hour rating.
- 07 City inspector final walkthrough closes the permit.
Secondary suite FAQ
Does my existing suite need a permit if I am not changing anything?
Existing compliant work does not require a new permit. New wiring triggers one. Legalizing an unpermitted suite usually triggers a full inspection.
How does the City of Vancouver know my suite exists?
Business licence applications, BC Hydro meter requests, renovation permits, property assessments, neighbor complaints. For zoning questions contact City of Vancouver planning.
Can I keep one BC Hydro meter if I rent the suite out?
Yes. Most owner-occupied homes use one meter and a dedicated sub-panel. Separate metering requires a second meter base and second account.
Does a tiny suite need its own sub-panel?
Yes. Dedicated overcurrent protection, labeled circuits, clean isolation. Standard regardless of suite size.
What smoke alarm interconnection is required?
The Vancouver Building Bylaw requires interconnected, hard-wired smoke alarms in both units. An alarm in one must sound in the other.
How does laneway electrical differ?
Same framework plus a voltage-drop-sized underground feeder, buried conduit to bylaw depth and GFCI protection on outdoor feeders.