Shops downstairs, tenants upstairs: two rulebooks, one building.

Updated October 3, 2026 · DF Property Management

The typical building

Walk Queen Street West, the Danforth, Roncesvalles Avenue, St. Clair West, Lakeshore Boulevard West in Mimico or Main Street in Streetsville and you'll see the format: a two- or three-storey brick building, often built before 1940, with a storefront at grade and one to four apartments above, reached by a separate street door or a rear stair. Newer mixed-use buildings — retail podiums under rental towers along Yonge, Eglinton or in Vaughan Metropolitan Centre — follow the same logic at a larger scale. In older buildings, the apartments sometimes share a rear entrance with the shop's deliveries and garbage — worth noting before you lease the store to a food use.

Two legal regimes

The practical rule: never let a remedy from one regime touch the other. Changing locks is a lawful commercial remedy in the right circumstances; on an apartment, it's an illegal lockout. A security deposit is normal in a shop lease; on an apartment, it's prohibited.

Live-work and owner-operators

The Residential Tenancies Act doesn't apply where premises are occupied for business purposes with living accommodation attached, under a single lease, by the same person — and decisions have looked at whether the business use predominates. If your shopkeeper also rents the apartment above, decide deliberately: one combined lease or two separate leases. Two leases (commercial and residential) are usually clearer, but the residential one is then fully covered by the RTA.

Insurance

• Insure the building on a policy that knows about every use. A restaurant at grade can change the premium and the conditions for the whole building.
• Require the commercial tenant to carry its own liability insurance (with the owner as additional insured) and contents coverage, and collect certificates every year.
• Recommend tenant insurance to residential tenants and say so in the lease's additional terms.
• Tell your insurer when a unit is vacant — vacancy clauses can limit coverage.

Separate metering

Older main-street buildings often have a single water meter and sometimes shared gas. That makes it hard to recover the shop's consumption — and a restaurant or laundromat can use far more than the apartments.

• Hydro: separate meters for the commercial unit and each apartment where possible; at minimum, separate the shop from the residential side.
• Gas and water: where separate meters aren't practical, the commercial lease can allocate a share by formula or require a sub-meter.
• Residential utilities: once a residential lease includes heat or hydro, changing that later is constrained by the RTA. Get it right at lease-up.

Noise, odour and hours

The most common conflict in these buildings is between a food or entertainment use downstairs and tenants upstairs. Residential tenants have a right to reasonable enjoyment, and a landlord who ignores a persistent problem can face an LTB application and rent abatement.

1. Choose uses carefully. A clinic or a retail shop is quieter than a bar. If you lease to a restaurant, budget for ventilation and exhaust that discharges above the roofline.
2. Write it into the commercial lease. Hours, music levels, exhaust maintenance, grease trap cleaning, garbage storage and pickup times, and a clause that lets you require fixes.
3. Respond like a landlord to both. Log complaints from upstairs, inspect, and send the commercial tenant a written notice under its lease when it's in breach.
4. Handle pests at building level. Food uses draw pests that move between floors. Schedule building-wide pest control, not unit-by-unit.

Fire separations and safety

Ontario's building and fire codes require fire separations between different major occupancies — for example, between a store or restaurant and the dwelling units above — and the Fire Code includes retrofit requirements for many older buildings with residential units. In practice, check:

• Ceiling and wall assemblies between the shop and apartments — no unsealed holes from new wiring, ducts or plumbing.
• Self-closing, rated doors where required, never propped open.
• Working smoke alarms in every apartment and carbon monoxide alarms where there's a fuel-burning appliance or attached garage.
• Two means of egress from the apartments where required, and a rear stair that is kept clear of the shop's stock and garbage.
• Commercial kitchen exhaust and suppression systems serviced on schedule.

Any renovation of the storefront — new kitchen, removed walls — can affect separations. Get a permit and confirm the separations are restored. Our legal compliance service tracks inspections and certificates.

Lease-up checklist

1. Confirm the permitted use. Check zoning for the storefront use before you market it; a change from retail to restaurant can need approvals and a building permit.
2. Inspect separations and exits before a new commercial tenant starts its fit-out, and again when it's finished.
3. Set the utilities. Decide which meters each tenant holds and write it into both the commercial and residential leases.
4. Align the insurance. Tell your insurer about the new use and collect the tenant's certificate before handing over keys.
5. Tell the residents. A short note to the apartments about the new tenant and its hours heads off complaints.

Accounts and tax

Keep the residential and commercial income and expenses identifiable in the books. The commercial rent is generally subject to HST if the owner is registered; the residential rent is exempt, and input tax credits on shared costs have to be apportioned. See HST on commercial rent.

How we manage them

Our mixed-use and retail management service runs both sides: Ontario Standard Leases and LTB process for the apartments, commercial lease administration for the store, one maintenance team for the building, and a single monthly statement that keeps residential and commercial figures separate. Common neighbourhoods for this format include Roncesvalles, the Danforth and Mimico.

General information, not legal or tax advice. Building and fire code requirements depend on the specific building; consult a qualified professional before making changes.