Home addition and second storey cost estimator
Estimate the cost of adding extra living space to your home, such as a rear addition or a second storey, based on square footage.
This range covers structural work, permits and interior finishing typical for the Toronto area; engineering and city approval requirements can shift the final price.
Compare actual quotes for this projectLocal price context: based on 235 price points from reviews and provider websites across this directory. Recorded prices span jobs of very different sizes, so compare quotes for your exact project.
This is an estimate only; a contractor and structural review are needed for a firm quote.
Enquiries from our contact forms may go to partner providers who can do the work, and we may receive a referral fee. Our rankings are based on our published scoring method only and are never affected by referral fees.
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