The cost of asphalt varies by region, but it typically costs between $2 and $5 per square foot. This price includes a base coat and a basic topcoat.
If a topcoat color other than black is desired, it costs an additional $3 to $5 per square foot. Stamping a template into the surface of the asphalt to give it a customized look adds that same amount to the cost. If a new driveway is being constructed, a gravel layer must be put in first, and this means another $1 to $2.50 per square foot. Asphalt is a popular choice for driveways because it lasts 15 to 20 years when cared for properly.