Ontario Local Register
The official local register or list, which includes an inventory of buildings, structures, sites, objects, and districts within the City that are worthy of preservation due to their significance in history, architecture, archeology, engineering, and/or culture. For more information on the local inventory, visit the California Historical Resource Inventory Database (CHRID). For more information on designated local landmarks and historic districts, please see Properties and Neighborhoods.
National Register of Historic Places
Ontario has several resources that are listed in, or in the process of being listed in, the National Register.
|No.||Historic Name||Address||APN||Designation Date|
|1.||Frankish Building||200 S Euclid Avenue||104905803||August 11, 1980|
|2.||Hofer Ranch||11274 S Turner Avenue||21121112||July 8, 1993|
|3.||Ontario State Bank Block||300 S Euclid Avenue||Demolished|
|4.||Euclid Avenue||24th St (Upland) to Philadelphia St||Not Applicable||August 10, 2005|
|5.||Dr. O.S. Ensign House||304 S. Laurel Ave.||109404304||March 20, 2012|
|6.||Ontario Ballpark||John Galvin Park||Preparing Application|
Historic preservation has four essential components: identification, evaluation, registration and protection. The Office of Historic Preservation (OHP) offers different registration programs, California Historical Landmarks, California Points of Historical Interest, and California Register of Historical Resources.
Each registration program is unique in the benefits offered and procedures required. If a resource meets the criteria for registration, it may be nominated by any individual, group, or local government to any program at any time. Resources do not need to be locally designated before being nominated to a state program nor do they need to be registered at the state level before being nominated to the National Register.
As of January 2008, there are 1,044 California Historical Landmarks, 851 Points of Historical Interest, 2,380 National Register listings, and more than 25,000 resources listed in the California Register