Tenant improvement electrical work in Calgary

CCT 01Where the base building ends and the fit-out begins

Every tenant improvement starts with a line nobody has drawn yet: the point where the landlord’s electrical system stops and the tenant’s begins. In a multi-tenant office or retail building that point is usually a tenant panel or a feeder stub, but the lease and the landlord’s work letter decide it, not habit. Read both before anyone prices lights or receptacles.

Three documents set up the electrical scope:

• The work letter or tenant criteria manual. It lists what the landlord delivers (often a panel, a lighting grid and a fire alarm backbone) and what the tenant pays for, must use the landlord’s contractor for, or must submit for approval.
• The existing single-line diagram and panel schedules. They show what feeds the premises and what else shares that feeder.
• The tenant’s equipment list. Ovens, dishwashers, imaging equipment, compressors, server racks and signs are what turn a routine office fit-out into a capacity question.

Two assumptions cause most surprises. A panel with empty breaker spaces is not proof of spare capacity: the feeder, the transformer or the building service may already be near its limit. And a previous use is not proof the space suits the next one. A unit that ran as an office may not support a commercial kitchen or a clinic without new distribution. The tenant improvement process guide covers the lease-to-occupancy sequence; this page covers the electrical scope inside it.

CCT 02Who usually carries what in a fit-out

Treat the table as a starting checklist. The lease governs, and many landlords name their own contractor for fire alarm work and base-building tie-ins. Where the work letter is silent, write the item into the tender as an explicit inclusion or exclusion so it cannot fall between two contracts.

CCT 03Capacity decides the budget

If the premises can take the tenant’s load on the existing feeder, the electrical scope is mostly branch circuits, lighting and controls. If it cannot, the job acquires a new feeder, a larger panel or a landlord-led service change, with shutdowns in an occupied building and utility involvement. That difference outweighs almost every other pricing decision, so settle it first.

Ask the landlord for the demand history of the service, not just its nameplate. Larger Calgary sites have interval meters: ENMAX installs them at sites planned at 150 kVA or more, and at existing sites once demand registers 150 kVA or more twice in twelve months.¹ Interval data shows how close the building really runs to its limit. The service capacity calculator compares that peak with the load the tenant plans to add.

When the tenant load does not fit, the options are a new or larger feeder from the base building, a service upgrade that the landlord commissions, or a design that manages load. Each has a different owner. Services over 200 A need ENMAX current-transformer metering,² and ENMAX does not confirm capacity when it reviews a circulated development permit,³ so utility questions go to ENMAX directly and early. The ENMAX commercial connection guide sets out that process.

Submetering is the other trap. If a landlord bills a tenant for electricity from its own submeter, that submeter is a revenue meter under federal rules,⁴ and it must be an approved type, verified and sealed before use.⁴ A check meter used only to watch consumption is not a revenue meter.

CCT 04Permits and approvals, in the order the City applies them

A commercial fit-out in Calgary runs through several approvals, and they are not interchangeable.

1. Planning approval. For commercial or industrial space, a development permit must be in place before the building permit is issued; without it the building permit stays on hold.⁵ If the use changes, the City lists a permitted change of use at $190 and about 5 business days, and a discretionary one at $624 and 10 to 12 weeks.⁵
2. Building permit. The City may issue a building permit for a minor tenant improvement within 21 calendar days of a complete application, and within 56 days for larger projects.⁶
3. Trade permits. Each trade (electrical, plumbing, gas and HVAC) applies for its own permit.⁵ Calgary requires separate electrical permits for base-building work and for tenant spaces,³ and only a master electrician can obtain one.⁷
4. Fire alarm. Altering or installing a fire alarm needs both a building permit and an electrical permit.³
5. Occupancy. The contractor books the final inspection through 311 after all other inspections are signed off, and a new business receives its business licence after the occupancy permit.⁶

The electrical permit fee is a formula: $112 processing plus $9.79 for every $1,000 of construction value,⁸ plus a Safety Codes Council fee of 4% of the permit fee, with a $4.50 minimum and a $560 maximum.⁸ Construction value means labour and material, including anything the tenant supplies,⁸ and starting work before the permit is issued doubles the fee.⁸

Whether the drawings need an architect’s or engineer’s stamp turns on the building code’s professional-involvement rules.⁵ Business, mercantile and industrial buildings of three storeys or fewer are exempt up to set areas, for example 500 m² (about 5,380 ft²) for a one-storey building.⁹ The commercial electrical permits guide covers inspections and plans review in detail.

CCT 05A fit-out sequence that avoids rework

Most rework on a tenant electrical scope comes from pricing before decisions are made. A workable order:

1. Survey the premises: panels, what they feed, emergency lighting, fire alarm devices and anything the previous tenant left behind.
2. Freeze the equipment list with nameplate data, and get the landlord’s capacity confirmation in writing.
3. Complete the electrical design against the architect’s layout and the mechanical load list, including controls and emergency lighting.
4. Tender on the drawings, with the landlord’s required vendors and shutdown rules attached.
5. Obtain the electrical permit, then demolish and make safe. Circuits that also feed a neighbouring suite are the classic surprise.
6. Rough in with the partitions and ceilings, and book inspections before anything is concealed.
7. Connect equipment, commission the lighting controls and have fire alarm changes verified.
8. Close deficiencies, deliver records and book the final.

Reel 04 · Conduit and tray · illustrative film

Where fire alarm work is involved, the building code requires the system to be verified to CAN/ULC-S537,¹⁰ so allow for the verification report before occupancy. New lighting is designed under the energy code in force: Alberta brought the National Energy Code of Canada for Buildings 2020 into force on May 1, 2024.¹¹ The lighting controls page explains what that means for sensors and zoning.

CCT 06What moves the price

Tenant electrical work is often quoted per square foot, and the number hides its drivers. Two fit-outs of the same area can differ widely for reasons unrelated to floor area. Price the drivers instead:

• Use and equipment. A kitchen, clinic or lab carries dedicated circuits, three-phase connections and interlocks that an office does not.
• Capacity work. A new feeder through occupied floors, a larger panel or a landlord service change.
• Existing conditions. Unknown circuits, abandoned wiring, and emergency and fire alarm devices that must stay live during demolition.
• Landlord rules. Named fire alarm contractors, tie-in windows, after-hours requirements and noise restrictions.
• Lighting and controls. Fixture selection, control zoning and commissioning effort.
• Schedule. A compressed programme adds crew and overtime, and long-lead panels and fixtures set the critical path.

Statistics Canada’s price index for the electrical division of Calgary non-residential buildings stood at 111.3 in the second quarter of 2026 (2023 = 100).¹² It shows that contractors’ input costs have risen since 2023; it is an index, not a price for any fit-out. The electrical cost per square foot guide explains why the per-area shortcut misleads, and comparing electrical bids shows how to line up allowances, exclusions and alternates. Tenants who contract directly should also know the payment rules: an owner must pay a proper invoice no later than 28 days after receiving it.¹³

CCT 07What Calgary’s permit data says about fit-outs

Improvements to existing space are the everyday business of commercial construction in Calgary. In the City’s building permit data, 95% of the commercial and industrial building permits issued from 2023 to 2025 were for improvements to existing buildings rather than new buildings.¹⁴ Office permits alone numbered 1,600 over those three years, and 1,595 of them were improvements.¹⁴

The electrical permit data points the same way. Where the permit address matches the City’s assessment roll, contractor alterations to existing buildings made up 61% of the 9,114 electrical permits at non-residential properties from 2023 to 2025.¹⁵ Downtown Commercial Core and Beltline had the most of any community, with 679 and 329.¹⁵ These are floors, not totals: permits whose address does not match the roll are left out, and one permit can cover anything from a single circuit to a full floor.

Contains information licensed under the Open Government Licence – City of Calgary.

CCT 08Handover records, by building type

At completion the tenant and the landlord each need a record they can hand to the next contractor:

• updated panel schedules and directories, with base-building and tenant circuits identifiable;
• the electrical permit, the inspection record and any fire alarm verification report;
• record drawings showing what was removed, abandoned or re-fed;
• lighting-control settings, sensor locations and operating instructions;
• equipment manuals, warranties, and the deficiency list with who closes each item.

Keep base-building and tenant work separate on invoices as well as drawings. At lease end, restoration clauses turn on what the tenant added, and a clean record settles the question quickly.

The detail changes with the use. See office buildings for base-building distribution and occupied-floor work, restaurants for kitchen equipment, hoods and three-phase power, and retail for mall criteria, display lighting and signs.