The short answer
Basement suite insurance means insuring a home you live in that also has a rented, self-contained unit, whether below the main floor, at garden level or in a separate laneway building. Insurers usually want the suite disclosed and may add an endorsement or write the home differently. Whether the municipality has approved the suite, how it is separated from your space and what the tenant carries all shape what a licensed broker can find.
- Owners who live upstairs and rent the basement to help with the mortgage
- Buyers of a house that already has a tenant in the suite
- Families building a garden or laneway suite in the backyard
- Owners whose suite was built without permits and who want to sort that out
- Parents renting a suite to an adult child or another relative
4 licensed brokers in the network handle this. In Alberta, Canada, a request for basement suite insurance can be offered to up to three of them, chosen because they are licensed for this line and place. They are test brokers while we are in demo.
See the brokers → Outside Alberta, Canada you can prepare and save a request today; sending opens place by place. Brokers answer with their own quotes. Broker.insure does not quote, advise or take commission.
01 / What it covers
The parts worth understanding
Disclosing the suite
A rented, self-contained unit changes how the property is occupied, and most insurers ask about it directly. Depending on the insurer, the answer may add an endorsement, change the policy form, or call for different cover for the rented portion.
Legal and non-legal suites
Many municipalities have a process to approve secondary suites, with requirements on things like fire separation, smoke alarms, exits and window sizes. An unapproved suite can still be disclosed, but some insurers ask about approval, and it may narrow the choices.
Liability to the tenant
As the owner you can be responsible if a tenant or their guest is hurt because of something you control, such as a broken stair, a blocked exit or a failed alarm. Ask whether the liability limit and wording extend to the rented part of the home.
Rent you lose after a loss
If a covered loss makes the suite unlivable, the rent stops while the mortgage does not. Some home policies include lost rental value for a rented portion; others need it added. Confirm how long it pays and how the rent is measured.
A detached garden or laneway suite
A separate building in the yard may fall under a limit meant for garages and sheds, which can be far too low for a dwelling with a kitchen and bathroom. Ask how the insurer wants it listed and valued.
The tenant's own policy
The owner's policy is not built to replace a tenant's furniture or to defend the tenant if they start a fire. A tenant policy fills that gap, and a lease can usually require one, subject to provincial tenancy rules.
Shared systems
One furnace, water heater, electrical panel and laundry often serve both units. Smoke or water that starts in one space reaches the other quickly, which is why insurers ask about separation and alarms.
02 / Get ready
Bring this, and expect these questions
Gather
- How the suite is laid out: its own kitchen, bathroom and entrance, and what is shared with your space
- Any development or building permit, final inspection or suite registration from the municipality
- The signed lease, the monthly rent and the tenant's move-in date
- Proof of the tenant's own insurance, if the lease requires it
- Smoke and carbon monoxide alarms in the suite, and whether they are interconnected with the main home
- The fire separation between units, such as rated drywall, a self-closing door or sealed ductwork, if known
- Your mortgage lender's details, especially if suite rent was used to qualify for the loan
- For a detached suite: its size, construction, year built and any separate utility connections
- Any claims at the address, particularly for water or fire, with dates
A broker will ask
- Do you live in the main part of the home, and how many people live in the suite?
- Does the suite have its own kitchen, bathroom and entrance?
- Has the municipality approved or registered the suite, or is that still in progress?
- Is there a written lease, and what rent does the tenant pay?
- Do you require the tenant to carry their own insurance, and have you seen proof?
- Is the suite rented long-term, or ever by the night?
- Are there interconnected smoke alarms and a second way out of the suite?
- Is the suite inside the house, or a separate building in the yard?
Not sure of an answer? Leave it. "Not known yet" is a fine answer, and a broker will help you fill it in.
03 / Build your request
Answer a few questions. Get your own list.
Pick what fits. Your answers shape the list beside them, and they are saved to your request as plain facts a broker can read. "Not sure yet" is always a fine answer.
04 / Three situations
See which one sounds like yours
A buyer taking over a tenant and an unpermitted suite
A buyer is purchasing a house in Edmonton where a tenant has rented the basement for three years. The listing calls it a suite, but the seller has no permit records and the bedroom window looks too small to climb out of.
First steps. Ask the seller for the lease, the rent records and any permit or inspection documents, and ask the municipality what approving the suite would involve. Tell the broker exactly what is known before possession, and ask which insurers will write the home as it is and what would change once it is approved.
A tenant's stovetop fire that reaches the main floor
A tenant left a pan on the stove in a Calgary basement suite. The fire was put out quickly, but smoke travelled through shared ductwork into the owners' main floor, and the tenant has to move out during repairs.
First steps. Report the loss to the insurer straight away and keep the fire department report. Ask the broker how the claim splits between the owner's policy for the building and the tenant's policy for their belongings and liability, and whether lost rent is payable while the suite is repaired.
Parents renting a laneway house to their adult son
A couple built a laneway house behind their home and their adult son moved in, paying a modest monthly rent. They had told the insurer about a new garage, not about a second dwelling with its own kitchen and bathroom.
First steps. Gather the building permit, the final inspection and the construction costs for the laneway house. Ask the broker how a detached dwelling should be listed and valued, whether a family member paying rent is treated as a tenant, and whether the son needs his own tenant policy.
05 / Words you will hear
The jargon, in plain words
- Secondary suite
- A self-contained dwelling inside or beside a house, with its own kitchen, bathroom and sleeping area. Each municipality defines it in its own land-use and building rules.
- Fire separation
- Walls, ceilings and doors built to slow fire and smoke moving between units. Codes set how it is done, and it is a common item in suite approval.
- Owner-occupied
- A home the policyholder lives in as their main residence. Renting out part of it keeps that status with many insurers, as long as the rental is disclosed.
- Rental value
- Cover that pays the rent you would have collected from a rented part of the home while a covered loss makes it unlivable, within the policy limits.
- Egress window
- A window large enough and low enough for a person to climb out in an emergency. Bedrooms in a suite usually need one or another way out.
06 / Common mistakes
What trips people up
- Describing the home as single-family on an application because the suite is only the basement.
- Assuming a lease that requires tenant insurance means the tenant bought it, without asking for proof each year.
- Letting a detached suite sit under the small limit meant for a shed or garage.
- Not telling the insurer when a relative living in the suite rent-free is replaced by a paying stranger.
- Never testing the suite's smoke and carbon monoxide alarms because someone else lives there.
- Treating the municipal permit as optional paperwork when it can shape what insurers and future buyers ask.
Ready when you are
Turn this into one clear request.
Save it, add what you know, and choose when to send it. A licensed broker who handles basement suite insurance takes it from there.
07 / Questions people ask
Straight answers
Do I need to tell my insurer about a basement suite?
Usually, yes. A rented, self-contained unit changes who lives in the home and how it is used, and application questions often ask about it directly. Leaving it out can give an insurer grounds to question a claim or the policy itself. Tell the insurer or broker before the tenant moves in, and describe the suite, the rent and the lease accurately.
What makes a basement suite legal?
Each municipality sets its own rules through zoning or land-use rules and the building and fire codes. Common requirements include a separate entrance, fire separation between units, interconnected smoke alarms, a bedroom window or exit large enough for escape, and protected heating ventilation. Some cities, Calgary among them, keep a public registry of approved suites. Your municipality's planning or permit office can confirm what applies to your home.
Can I insure a suite that the city has not approved?
Often it can still be insured, but the options may be narrower. Some insurers ask whether a suite is permitted and decline or limit cover when it is not, while others focus on the safety features actually present. Being honest about the status matters more than the status itself. Ask the broker which insurers will consider the home now, and whether a plan to bring the suite up to standard changes anything.
Is a home with a suite insured on a home policy or a landlord policy?
When you live in the home and rent part of it, many insurers keep it on a homeowner policy with the rental disclosed and an endorsement added. If you move out and rent both levels, the property usually becomes a full rental and a landlord policy is the closer fit; the landlord page covers that case. Ask the broker which form each insurer uses for your exact arrangement.
Does my policy cover rent if the suite cannot be lived in?
It may, if the damage comes from a covered loss and the policy includes rental value for the rented part of the home. Some policies fold it into additional living expenses, others need an endorsement, and each sets a time limit. Keep the lease and rent records, since the claim is usually measured against the rent actually being paid.
Does my basement tenant need their own insurance?
The owner's policy is written for the owner. It generally does not pay for a tenant's belongings, and it does not defend the tenant if they damage the house or injure someone. A tenant policy covers those things. Many owners write the requirement into the lease and ask for proof when the lease starts and again each year. The tenant insurance page explains what such a policy includes.
Does a garden or laneway suite need separate insurance?
Not always separate, but it does need to be described. A detached dwelling may sit beyond the limit a home policy sets aside for garages and sheds, and its kitchen and bathroom make it a different risk. Some insurers add it to the home policy as its own building with its own limit; others handle it differently. Bring the permit, size and building cost to the broker.
Specialists
Sites for a specific line of work
General information, not insurance advice. Broker.insure is a directory and request service: it is not an insurer and does not quote, bind or advise. Policy terms, availability and what is required where you live depend on your situation and on licensed professionals. Updated 2026-10-31.