The occupancy classification of an individual building ultimately determines what use is allowed, but the zoning code is a good place to start. Below are links to the allowed use tables for the city and county.
If you are developing or renovating a property or wondering what zoning/occupancy you will need for your business use, start by contacting the city of Colorado Springs to schedule a Pre-Application Meeting. They will help you with an initial consult and lay out the steps you'll need for approval.
The Pikes Peak Regional Building Department is responsible for the administration and enforcement of the minimum building code standards in the region. PPRBD performs comprehensive inspections of all new building construction, alterations and additions to all buildings and homes to ascertain compliance with code. They can also answer questions regarding a property's occupancy classification.
Visit this page for information on fire code in the city.
Colorado Springs Utilities is the main provider of gas, water and electric in the area.
CSU main website (Start service, etc)
Utility GIS map (get more info on service in an area)
The Colorado Division of Water Resources is the place to find information on wells and water administration.
El Paso County Public Health inspects and regulates on-site wastewater treatment systems (OWTS)/septic.