Development Applications

This summary has been prepared to provide a source of information for builders, contractors, developers and residents about City procedures for development of property under the City's Development Code. 

Meeting City requirements for land development in Thornton requires an understanding of four basic elements. These are: zoning, conceptual planning, subdividing (also called platting), and development permitting. Zoning determines allowable land uses. Conceptual site planning establishes a concept for development of the property. Subdividing establishes legal building sites. Development permitting establishes that the site plan, architecture, landscaping, and certain other development aspects meet all City Codes.  

The summary and the specific application sheets for any proposal are meant to be used in conjunction with the Development Code (Chapter 18 of the Thornton City Code), as a parallel source of information. If there are inconsistencies or conflicts that arise or are implied, then Chapter 18 controls.

A planner in the City Development Department will provide additional information and help you become familiar with the Development Code and the various processing procedures.​

Download the Development Summary Information [PDF/117KB] guide.