Answers

Yes - make sure you have a good base when you cut out the area to be widdened. The base is as important (if not more) than the amount of asphault you put down as a top coat.

Hi Martha. It is best you reference your community's deed restrictions on driveway widths. Any modifications to the exterior of your home or property usually requires ACC/ARC (Architectural Control/Review Committee) and HOA approval prior to those changes. If you live in the jurisdiction of a municipality you may need to get permits and inspections, as well.