How much does an interlock driveway cost in Ottawa?

Most interlock driveways in Ottawa cost $21 to $25 per square foot plus HST installed, or from $18 per square foot plus HST when an existing base can be reused. A typical 500 sq ft single-car driveway is around $10,500 to $12,500 plus HST. Removing an old asphalt or concrete driveway and choosing premium pavers can raise the total.