As Steve mentioned, check with the city building department. You will need to pull a permit to have the pool removed. The city should have a requirement list for having the pool removed including minimum compaction rates. Make sure you discuss building over the pool area and get the building departments input.
You should contact the Lafayette permitting office to have them provide some guidance regarding this especially if you are going to be building over the former pool area (make sure to let them know about this very important detail of your remodel plans): http://tinyurl.com/cud837h