Property tax is a couple of hundred bucks a year. HOA is 3000 / year which mainly goes to the administration and the 24 hour gated security. Other HOAs like Palmilla or golf communities can be higher. Energy costs are high and hurricanes a risk making solar an interesting question. I invested 25k in aluminum accordion shutters shipped in from Florida. Also installed a back up generator in case of power outages. Water is supplied by the city into two pilas, one for the main house and one for the casita. Septic tank/ grey water system also in place. Lots of learnings compared to California :).