Home Additions Ottawa

Your home addition needs a building permit from the City of Ottawa before construction starts. We handle the full application process, including zoning compliance, drawings and coordinating the structural engineer and other consultants.

Permits cover structural integrity, electrical work, plumbing changes, and HVAC systems. There's a fair bit of back and forth so we can organize communication and scheduling inspections so you can focus on your family and look forward to completion without stress.

Timeline Expectations for Room Additions

Most room additions take 4 to 8 months from site prep and demolition to final inspection. Understanding each phase helps you plan around school schedules, work changes, or family events.

Design development and permit approval for additions take three to twelve weeks. Demolition, site prep, and framing are usually four to eight weeks. Interior finishes, trim work, and painting add another 6 to 8 weeks.

We get harsh seasonal weather, both summer and winter, and might pause exterior work when during a storm. Needless to say, clients move out of the house while we are in construction. This is especially true when we add a floor because a section of the roof is off and the house is exposed. Expect to be in a rental or family member's house for about 6 months.

Property Value Impact of Adding Square Footage

Well-planned additions have a 25%-34% return on investment at resale¹. Extra square footage and more functionality makes your home more desirable and competitive when you list.

Master bedroom suites with en-suites, added living rooms, extended kitchen, or even an extra level should see strong returns on resale. And from Russell to Arnprior, owners are adding space for a home office. This helps attract remote workers which is a growing portion of the Ottawa market.

As some families grow and change they may expand in-law suites. These are a big draw for young buyers to rent and support their finances, and multi-generational buyers accommodating an extra family unit. For all of these options it's important to match or surpass the style and quality of your existing home to protect its value.

Vertical vs. Horizontal Expansion Options

To build up or out, it's a fantastic choice to be able to make, but not an easy one. I've found most of my clients decide to extend the main floor because of the lower cost with less disruption. Adding square footage to the main floor usually give you more flexibility for design like added cieling height.

This flexibility in design is not available to some owners and they have to build up a storey. Second-story additions are great as they protect your houses footprint and yard space, but they require staircase construction, and usually an entire new roof. Most owners choose adding a storey when the existing house design is simple and allows for an easy addition, in a heritage house, or when there are lot constraints on the size of the footprint.

Consider sun exposure when choosing the direction for your expansion. Don't forget south-facing benefit from solar gain and light. Existing trees will also affect your plan, and should be considered in the home addition design.

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References

1. Do Renovations Add Value - angie.com