I'm no tennis expert, but isn't most parking-grade asphalt a lousy court
surface? Not flat, not smooth, etc. The balls will bounce funny, etc. Or
are you going to put a sand bed and astro-turf/rubber mat *surface above it?


Yeah, I'm no expert either, and this is at least a start. I don't
know how much use it will actually get; time will tell. The most
experienced person in my family has only 2 years of high school tennis
experience. But I understand that people do commonly use asphalt, and
the more rigorous people put something on top, such as some kind of
sanded latex coating or other surfaces.