So you've finally decided to add a second story to your home to add value and space, or because your millennial child is moving back home (sigh). Regardless of why you're considering the addition of a second floor, there's a lot you should be aware of before you start sludgehammering drywall.

Can I just start building my second story immediately?

Not in Ontario. The Ontario government's website details everything you need to know about local zoning, building codes, and other by-laws pertaining to adding a second story or unit to your home.

Depending on your municipality, you might, for example, need certain building permits to add that second story. Or you may have required building inspections during construction.

Read through the page to see what applies to you, and follow the Ontario government's procedures from there an agent can help you with anything that's confusing.

How much will a second story cost?

Apologies in advance for the cop out answer but it depends. We can say, however, that one of the most important factors affecting the cost of square-foot pricing is the overall size of the floor. Naturally, a bigger area will skew the per-square-foot to a lower cost.

Do I need to add an entire second story, or can I do a partial build and just add a new master bedroom and bath?

Yes, a partial build is a viable (and more affordable) option if that's all you need. You can even add that second story space on top of your garage, though that often ends up in replacing the garage entirely.

Why does adding a second story cost more than adding new space that's ground-level?

There's a number of reasons for this increase in cost. Most importantly, there's much more demolition involved (ie. the roof) and re-working the home's foundations such as plumbing, electrical work, A/C systems, etc to accomodate for the additional floor. The addition of stairs (you have to get to that second story somehow!) is a significant alteration project in itself, a factor that's often overlooked by homeowners.

Where can I find a construction / design / renovation company for this home reno project?

Well, this is certainly no DIY project unless you're Tim 'The Toolman' Taylor. Ideally, you'll want a company that has experience with creative design concepts, and the work to back it up. Some home renovation and construction companies - like us here at TriMatrix - also works with teams of trusted contractors, developers, and design firms that specialize in particular projects, like adding a second story to your home. They (or we!) can assemble the best team to design and create the second story you always imagined.

If you have any questions about adding a second story to your home, or would like to get started on a project, contact TriMatrix Construction at any time.