Tentative Map No. 53430

4 Documents in Project


SCH Number
Lead Agency
Diamond Bar, City of (City of Diamond Bar)
Document Title
Tentative Map No. 53430
Document Type
EIR - Draft EIR
Present Land Use
Z: R-1-20,000 GP: Rural Residential (RR)

Document Description
TTM No. 53430 includes the development of 48 single-family lots for custom-built homes on 80 acres of undeveloped land within "The Country Estates", a gated community located in the southeastern portion of the City of Diamond Bar. The gross density of TTM 53430 would be 0.6 dwelling units per acre. Vegetation on the project site includes coastal sage scrub, chapparral, oak woodland, walnut woodland, and annual grassland. The majority of the existing vegetation would be removed and graded pads, manufactured slopes, residential roadways, and a vegetation/creek mitigation area would be constructed on the project site. Approximately 3.32 million cubic yards of cut and fill grading would be required and would be balanced on-site. Alamo Heights Drive would be extended to provide access to the lots and utilities would be extended from Steeplechase Lane to serve the project site.

Contact Information
James DeStefano
City of Diamond Bar
21825 E. Copley Drive
Diamond Bar, CA 91765

Phone : (909) 839-7030


Diamond Bar
Cross Streets
South of Rocky Trail Road and Alamo Heights Drive
Total Acres
Parcel #
8713-024-001, 002
State Highways
SR 57
1 HS, 1 MS, 2 El.
Tonner Canyon Creek

Notice of Completion

Review Period Start
Review Period End
Development Type
Residential (Single-Family)(48 Units, 80 Acres)
Local Action
Rezone Use Permit Subdivision Other Action Other Action: Tree Permit
Project Issues
Aesthetic/Visual Air Quality Archaeologic-Historic Flood Plain/Flooding Forest Land/Fire Hazard Geologic/Seismic Noise Public Services Recreation/Parks Schools/Universities Sewer Capacity Soil Erosion/Compaction/Grading Solid Waste Traffic/Circulation Vegetation Water Quality Water Supply Wetland/Riparian Wildlife Growth Inducing Cumulative Effects
Reviewing Agencies
California Department of Parks and Recreation California Highway Patrol California Native American Heritage Commission Department of Water Resources Office of Emergency Services, California Office of Historic Preservation Resources Agency California Department of Transportation, District 7 California Department of Fish and Wildlife, South Coast Region 5 California Regional Water Quality Control Board, Los Angeles Region 4

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.

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