one thing i don't think a lot of people understand in building a tennis court is the logevity of the court itself. for a hard court especially, longevity is a huge factor in what you want to spend. longevity of a hard court is usually dealing with cracks, and cracks is not a surface problem. it is a sub-base issue. the proper amount of crushed stone, rocks, and sediment has to be put in place for you to get the longevity out of the court that you want. if you decide to go cheap the first time ( a smaller thickness of sub-base usually), you will pay for it in the long run. while crack repairs are monetarily inexpensive, you cannot keep implementing crack repairs. eventually, you will have to rebuild the court. since all hard courts will eventually crack, you are probably looking for something that will last for about 15-20 years, maybe longer. to answer mr. federer's question to how much a clay court costs, it depends on where you live. in new england, where i live, the sub-base has to be much thicker. if you lived down in florida, the sub-base could be thinner. in new england for a top of the line court, it's about 45 K though. 55 k for a hard court. 60 k for synthetic. no one does grass anymore unless you are insane. mantinence is nuts. those are the prices in new england for a top of the line court. in florida or california, prices would be reduced significantly however.