from IRS PUB 946
15-year property.
a. Certain improvements made directly to land or added to it (such as shrubbery, fences, roads, sidewalks, and bridges).
if the above is 15-year property, I would say driveway paving is also 15-year property.
you could also search the web for what others think, but what I found was that others also say it's 15 year property.
