Highland Grove II Project

The Highland Grove II Project, identified as Tentative Tract Map No. 38910, involves the subdivision of a 60.68-acre site in unincorporated western Riverside County, California, into 128 lots for single-family detached residential dwellings. The development will maintain a density of two dwelling units per acre and include an ingress/egress road off El Sobrante Road with interconnecting internal roadways. Infrastructure plans include connecting to existing water, sewer, electrical, telephone, and gas utilities in the El Sobrante Road right-of-way, with all existing power poles relocated underground. To mitigate wildfire risks, the project incorporates 100-foot fuel treatment zones and defensible space for fire suppression forces, subject to inspection by the Riverside County Fire Department. The project is supported by extensive environmental and technical assessments, including a Land Evaluation and Site Assessment, a Phase I and Limited Phase II Environmental Site Assessment conducted under ASTM E1527-21, and a noise impact analysis that mandates specific construction hours and a noise disturbance coordinator. Transportation assessments indicate a less than significant vehicle miles traveled impact. The lead agency, the County of Riverside Planning Department, has issued a Notice of Intent to adopt a Mitigated Negative Declaration, with a public review period scheduled from August 26, 2026, to September 25, 2026. Key approvals required for the project include a zone change, general plan amendment, and agricultural preserve diminishment.