Adding an Addition

Question Icon
Posted by: from London
6/30/2013 at 8:27:39 AM

We live in a 1950's ranch, with a walk out basement. We are looking at adding an extra bedroom off the back of the house and also extend the basement, but are unsure if this is possible. There is an above grade window in our basement now and we would like to keep as much natural light as possible down there.

I have attached a couple of pictures - hoping someone can let me know if an addition is possible and approximate cost for this scope of work.

adding an addition
User Icon
Robert from Alair Homes Toronto in Toronto
Date/Time6/30/2013 at 10:33:53 AM


If you are extending the basement along with the addition of an upper level bedroom the window can be moved to the extended wall giving you the same amount of light or even more if you make the window larger. You need to check your zoning by-laws to make sure you will be complying with the building set backs (rear and side).

Cost will depend on the level of finishing which could range between $ 100 per square foot up to $ 150 per square foot.


Robert May

Alair Homes

User Icon
Date/Time7/7/2013 at 9:41:47 AM

Robert is correct in that if you include a basement extension as well, you can relocate the window. Much of what you can do will depend upon your local bylaws and zoning, in particular lot coverage. You can use a crawl space foundation but will loose light to the basement window.



Search the TrustedPros directory and discover the best contractors in your area.

Find your home service pro
Great renovations start with a great contractor.

Since 2004, TrustedPros has been helping homeowners find the right contractor for their home improvements and repairs.

Post Your Project

Within hours you'll be comparing offers from top-rated professionals. It's free to post and you're under no obligation to hire.

Trustedpros Inc. does not warrant the accuracy, completeness, safety, legality or usefulness of any Content, or Whether Content is Current and up-to-date, and TrustedPros Inc. Shall have no liability whatsoever with respect to your use or reliance upon any content or for content being removed or otherwise ceasing to be available. Please refer to the terms and conditions of use of this websites for more details.

It appears you may be located in the US

TrustedPros is designed to deliver results targeted to your location.

Get Free Estimates

Post your project and compare offers from top-rated pros.