The Land Use and Development Codes have been codified as part of Claremont's Municipal Code (link under Search menu above).
Effective May 8, 2008, you will find them under the following Municipal Code Chapters:
Title 16 - Zoning
Title 17 - Subdivisions
Title 18 - Signs
For more information, you may contact the City Clerk's Office at (909) 399-5460.