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The Daily Insight

Does a basement bedroom require a window in Ontario

Author

Ava Robinson

Updated on April 15, 2026

As a fire safety issue, every basement level that contains a bedroom shall be provided with a properly sized egress window. In addition to other requirements, the window must have a minimum, unobstructed opening of 0.35m² (3.8ft²) with no dimension being less than 380mm (15”).

Does a basement bedroom need an egress window in Ontario?

To put it all simply, if you are developing your basement in Ontario you will need an egress window that has a wide clearance and be easily opened. The Great Egress Company provides a curated collection of windows that meet egress requirements.

Is it legal to have a bedroom without a window Canada?

So what are the legal bedroom requirements in BC anyway? Except where the suite is sprinklered, each bedroom shall have at least one outside window or exterior door openable from the inside without the use of keys, tools or special knowledge and without the removal of sashes or hardware.

Can a basement bedroom not have a window?

In most cases, the answer is yes. A finished basement project must incorporate an Egress window if any portion of the space will be used as a bedroom, or if you are creating another habitable space (a family room, for example) that does not already have an Egress window or a door.

How many windows do you need in a basement Ontario?

Ontario Building Code article 9.7. 1.2. establishes the general requirement that all bedrooms must have at least one window that is large enough to be used as an exit in an emergency.

What makes a legal bedroom in Ontario?

Room or spaceMinimum required floor areaMaster bedroom (without built-in closet)9.8 m 2 (95 ft 2)Other bedrooms (without built-in closets)7 m 2 (75 ft 2)BathroomEnough space for sink, toilet and shower stall or bath

Does every bedroom need a window Ontario?

Ontario Building Code This may come as a surprise to many people, or a relief to those looking to add a bedroom in the basement, but contrary to the National Building Code and popular brief, a bedroom in Ontario does not require an egress window in the actual bedroom!

What classifies a bedroom in a basement?

Your basement does not qualify as a bedroom unless it has window dimensions that meet a list of particular requirements. … Basically, bedroom windows must be large enough and low enough to enable emergency escape, and the window size must meet minimum standards to provide natural light and adequate ventilation.

Can a basement room be considered a bedroom?

So, can you use your basement as a bedroom? In short, yes. You can use your basement as a bedroom, but you have to ensure that it complies with the proper building codes. Basement living spaces require an emergency exit and rescue openings, also known as an egress code.

Should I put a bedroom in my basement?

Does adding a bedroom in the basement add value? Absolutely. Buyers are all about usable space and are willing to spend a little extra to have more of it. According to Remodeling Magazine, a midrange basement refinish yields on average 70% ROI.

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What makes a basement apartment legal in Ontario?

In Ontario, a legal basement apartment is a secondary unit that meets Ontario Building Code requirements. Basically, if your property meets the zoning codes for your area, and your building is over five years old, your second unit needs the following: At least 145 square feet of space.

Can a bedroom have 2 doors and no windows?

Technically, a bedroom must have two means of egress, so a second door will suffice, but it must open to the outside, which makes the exterior door a less practical solution. Not any window will do. It must have a minimum opening area of 5.7 sq.

How big does a basement window have to be for a bedroom?

It must be at least 5.7 square feet, 20 inches wide by 24 inches high, with an opening no higher than 44 inches from the floor. In addition, the egress window requirements for basements specify that they be at least 36 inches in height and width, with a fully functioning opening.

Are egress windows required in Ontario?

As a homeowner in Ontario, you need to make sure that your bedroom and basement windows meet the required egress window standards. Egress-style windows are required by law as they provide a fast and safe escape from your home given an emergency situation.

What happens if I finish my basement without a permit in Ontario?

There are consequences for not getting a permit. You could face a fine, or the municipality may force you to remove walls, ceilings, cabinets and other finishes so that an inspector can determine if the work complies with the building requirements. In the worst case, they’ll have the renovation removed entirely.

Does a room need a window to be a bedroom?

Well, technically a bedroom should have at least two methods of egress, which means in addition to the interior door it must have either a properly-sized window or a second door to the exterior. … If a room does not have a window (and no second door), it’s not a bedroom and is best considered something else.

Why are tiny houses illegal in Ontario?

Anything under the minimum size requirements would be considered uninhabitable, would not be in compliance with the building codes in Ontario, and is clearly outlawed to be occupied full time. You would be shut down. Why do you build tiny houses on steel frames with wheels?

Does every bedroom need a fire escape window?

For new build, Building Regulations say that each habitable room (i.e. not a kitchen, bathroom or cupboard) above the ground floor needs a fire escape window. … It’s worth considering your escape strategy when you’re installing your windows and once they’re installed, make sure that you always keep the route clear.

How big do basement windows have to be?

Requirements for Egress Windows in Basements According to the International Residential Code, basement windows must have: An opening width of at least 20 inches. An opening height of at least 24 inches. A net clear opening of at least 821 square inches—or 5.7 square feet.

What is the legal requirement for a bedroom?

A room needs to meet a specific minimum requirement for square feet to be legally called a bedroom. It is expected that the room will be large enough to accommodate a bed. The most common measurement for a bedroom is a minimum of 70 square feet of floor space. This translates to a room measuring 7-feet by 10-feet.

Does a basement bedroom count as square footage?

While a finished basement is considered living space where your property value is concerned, it’s only in rare instances that this living space is counted towards the square footage. Even if your basement is not an exception to the rule, a finished basement is an asset to your property value.

Does a walkout basement need an egress window?

If you have a walkout basement you will be all set. If you do not have a walkout basement then you will be required to put in an egress window. An important note: whether you have a walkout basement or not, if you are going to call one of your new rooms a “bedroom” you must have an egress window in that room.

How can you count a bedroom in the basement?

  1. There is at least 7′ of clearance.
  2. There is a stairwell.
  3. There is an egress window.

What is a egress basement window?

What Is an Egress Window? An egress window looks just like a regular large window, but opens fully to allow a building’s inhabitants to escape in the event of an emergency, such as a house fire. Egress windows are required in all finished basements before they can be legally converted into a living space.

Is sleeping in a basement bad?

Sleeping in an unfinished basement can harm your health and lead to respiratory problems and cancer due to the lack of natural light and air, and exposure to harmful things like radon gas, molds, dust, and chemicals. Therefore, it’s advised that you do not sleep in an unfinished basement as a rule.

Do finished basements add value?

While finishing the basement certainly adds to the value of a home, it’s not always as significant as you might think. According to Remodeling Magazine, the national average for recouping basement finish or remodeling cost is 79%. … Resale Value done by Remodeler Magazine.

Does adding a bedroom add value?

In most cases, an extra bedroom can add between $30,000 to $50,000 to the potential resale value of a house, depending on the location and the existing property value. It is also possible increase a home’s value by increasing the size of the master bedroom.

Is it bad to live in a basement apartment?

Some health risks to people who live in basements have been noted, for example mold, radon, and risk of injury/death due to fire. … Presence of mold can lead to “respiratory symptoms, respiratory infections, allergic rhinitis and asthma”, as well as personal belongings being contaminated by mold.

Is it legal to rent basement in Toronto?

Basement apartments (a type of second unit), have been permitted in the City of Toronto, since 2000, however, previous City of Toronto’s zoning regulations only permitted the creation of a basement apartment five years after the new house is constructed, and did not permit basement apartments in all townhouses.

How do I make my basement apartment legal in Toronto?

Here are few basic requirements for a legal basement apartment in Toronto: (1) The detached or semi detached house must be at least 5 years old. (2) The front of the house cannot be significantly altered to change its appearance from that of a one unit building. (3) Basement unit must be smaller than the other units.

What do you call a room with no windows?

The answer is: A mushroom.