In Northern California many houses sit packed together on small plots. With homes of 2,500 square feet or more sitting on a lot of 5,000 sq. ft. This can present some serious challenges if you’re thinking of installing a nice swimming pool, but it’s certainly not impossible. If you’ve been told a pool can’t be built in your yard there is a good chance the company you are talking with doesn’t want to bother. Or they don’t have people with the expertise to do it.