How much does it cost to widen an existing asphalt driveway in Gloucester to fit a third car?

Widening an existing driveway is a popular project in Gloucester, where many families have added vehicles and need more parking space without sacrificing front yard area.

Typical Cost to Add a Third Parking Space

To widen a standard two-car driveway enough to fit a third vehicle, you typically need to add 8-10 feet of width along part or all of the driveway length. For a driveway that is 30-40 feet long, this means adding roughly 240-400 square feet of new asphalt. Expect to pay between $3,500 and $7,500 for the complete widening project, including excavation, base preparation, paving, and matching the new section to the existing surface.

Cost Breakdown

• Excavation and base preparation: $1,500-$3,000 (includes removing sod/landscaping, excavating to proper depth, importing and compacting Granular B and Granular A)
• Hot-mix asphalt supply and installation: $1,500-$3,000 (at 2.5-3 inches compacted thickness)
• Seam treatment between old and new sections: $200-$500 (critical for longevity)
• Landscape restoration along the new edge: $300-$1,000

The most technically demanding part of a driveway widening is creating a durable joint between the existing asphalt and the new section. The contractor should:

If the seam is not done correctly, water will infiltrate the joint, freeze during Ottawa winters, and the two sections will separate within a few years. This is the number one failure point in driveway widenings.

City of Ottawa Considerations

Before widening, check your property's zoning. The City of Ottawa's zoning bylaw limits driveway width in residential zones — typically to a maximum of 50% of the lot frontage or specific width maximums depending on your zone. In many Gloucester neighbourhoods (Pineview, Canterbury, Beacon Hill), lots are 40-50 feet wide, which limits total driveway width to roughly 20-25 feet. Exceeding the maximum requires a minor variance, which adds time and cost.

Permit Requirements

If the widening changes the curb cut or requires a new depressed curb, you will need a driveway entrance permit from the City of Ottawa. The permit application costs approximately $150-$300, and the curb work itself adds $1,500-$3,000 to the project.

Timing and Coordination

The best time to widen a driveway in Ottawa is during the May through September paving season, when hot-mix asphalt plants are running and temperatures support proper compaction. If your existing driveway is also due for sealing, consider doing both at the same time — applying sealer over the entire surface (old and new) helps blend the appearance.

Use Ottawa Driveways to get quotes from contractors in the Gloucester area who have experience with driveway widenings and understand the City of Ottawa's zoning and permit requirements.

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Looking for experienced contractors? The Ottawa Construction Network connects Ottawa homeowners with qualified professionals:

• Justyn Rook Contracting
• JC Carpentry
• M.O.T. CONSTRUCTION INC.
• Elie The Carpet Guy Inc.
• Jaiko Cleaning Services