

Growing families in Ottawa face a choice: sell and move to a larger home or get bunk beds for the kids. Tough choice, right?
What about adding a room by working with a company that covers room addition options, permit requirements, and contractor selection instead? That's why we founded KV Construction, a company that delivers quality room additions for Ottawa residents. We're a general contractor with Red-Seal-certified carpenters and almost two decades of local experience.
Room Addition Types That Maximize Your Investment
Main-floor room additions are the most common type of room addition because they're cost effective. These new rooms sit on new foundations beside your existing home, and we break through one exterior wall to connect the spaces. Basement finishing and second storey additions are also possible in Ottawa.
- Great room additions: are the most common project we build. These expand your family room or create a new living space, but requirements depend on your lot dimensions and zoning requirements.
- Second-story additions: perfect for smaller city lots where ground space is limited. Your existing structure must be able to support the additional load, so we work with engineers to assess your foundation and framing capacity. Weather is a big factor for second-story additions once we remove your roof.
- Sunrooms can add year-round living space if properly insulated for the Canadian winter. Windows, insulation, and HVAC integration complete these room additions.
- Bedroom and bathroom additions are also popular, either on the main floor, in a basement or as a second-storey addition.
Room Addition Permits and Building Code Requirements
In Ottawa, building permits are required for construction 108 sq ft, and are especially important on projects where we move walls or make any plumbing or electrical changes. Even a new deck requires a permit. We do room additions in a few ways, each with its own challenges and dependence on permits and codes. Whether you're finishing a basement room, extending a living room, building a coach house, or adding a level to your home, we've got you covered.
Effective Jan 1, 2025, Ontario harmonized building codes with National Construction Codes. These changes focused on efficiency and streamlining. Some key points are:
- The Permits required for new construction, structural alterations, additions, and certain renovations (e.g., basement finishing, new windows/doors affecting structure)
- Must meet new standards for foundations, framing, and fire safety
- Small structures of 188sq ft or more must meet minimum code requirements
Choosing the Right Contractor for Your Room Addition
We pride ourselves on our client-first approach. Out team is focused on your project from day one, and we only shift focus once the job is complete.
Our company has WSIB coverage, liability insurance, and Red Seal certification to prove that we're more than a guy with a truck. We've got the tools and the cred, ready to start your home addition today.
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Why Choose Us
Budget Friendly
Quality work at fair prices. We work transparently so there are no surprises.
Expert Team
Experienced contractors with years of proven success in home renovation.
Quality Guarantee
We stand behind our work with a comprehensive warranty on all projects.
Frequently Asked Questions
Do I need a permit for a room addition in Ottawa?
How long does a typical room addition take in Ottawa?
Ready to Add More Space to Your Home?
Contact KV Construction today to discuss your room addition project in Ottawa.
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