Should I plan my Ottawa paver driveway to allow a future second curb cut?

Planning for a future second curb cut during your paver driveway installation is smart forward-thinking, but it requires careful consideration of City of Ottawa regulations, your lot dimensions, and the structural implications for your interlock base.

The most important factor is whether your property frontage can legally accommodate two curb cuts under Ottawa's zoning bylaws. Most residential zones limit driveways to 50 percent of the front yard width or 8 metres maximum, whichever is less. For two separate curb cuts, you typically need substantial frontage — usually 15 metres or more — with adequate separation between the cuts and from property lines. Corner lots often have more flexibility for dual access points. Before designing your paver layout, contact the City of Ottawa at 3-1-1 to confirm your property's specific restrictions and whether a future second curb cut would be permitted.

If a second curb cut is feasible, design your interlock driveway with this expansion in mind. The key is ensuring your base preparation extends beyond your current paved area in the direction of the future cut. When your contractor excavates for the current driveway, have them extend the Granular B sub-base (300mm minimum) and Granular A base (150mm minimum) to where the future driveway section would connect. This prevents having to re-excavate and potentially destabilize your existing pavers later. The extended base area can be temporarily covered with topsoil and grass until you're ready for the expansion.

Interlock pavers are ideal for phased construction because individual units can be lifted and relaid without the demolition required for asphalt or concrete. When you're ready to add the second section, your contractor can lift the connecting pavers, extend the bedding sand, install the new section, and relay the transition area seamlessly. Choose a paver style and colour that will remain available — stick with standard shapes and popular colours from major manufacturers rather than specialty or limited-edition products that may be discontinued.

Consider the drainage implications of a future expansion. Your current driveway should be graded to handle runoff from both the existing surface and the planned addition. Installing a catch basin or extending drainage during initial construction is much easier than retrofitting later. The transition area between old and new sections is particularly vulnerable to settling if not properly prepared.

Timing considerations for Ottawa: Plan your expansion for late spring through early fall when contractors can properly compact the base connection and achieve good paver seating. Winter additions risk poor compaction and settling issues during the next freeze-thaw season.

When to hire a pro: Base extension, drainage planning, and seamless paver integration require professional expertise. A qualified interlock contractor can design the initial installation to accommodate future expansion while ensuring proper structural continuity and drainage management.

Need help finding an interlock contractor experienced with phased driveway construction? Ottawa Driveways can match you with local paving professionals who understand both City of Ottawa requirements and the technical aspects of expandable paver installations.