Sumner Place Residential Development

The Sumner Place Residential Development project, identified as PLN25-20005, involves the construction of a gated community featuring 159 three-story attached townhomes across 22 buildings on a 7.54 net acre site in Eastvale, California. The development includes 261,639 square feet of building area and various amenities such as a 1,476-square-foot pool facility, an outdoor fitness station, a children's playground, and an open lawn area. Necessary entitlements for the project include a General Plan Amendment from Commercial Retail to Multi-Family-Low-Moderate, a Change of Zone from Heavy Agriculture to General Residential, a Major Development Review, and Tentative Tract Map 38032. Site work encompasses utility infrastructure, landscaping, and internal circulation roadways, while off-site improvements target Orange Street, Sumner Avenue, and Schleisman Road through traffic signal modifications and curb realignment. The project is scheduled to run from March 2026 through March 2028, with specific phases for demolition, grading, trenching, building construction, and paving. Environmental reviews under CEQA have concluded that impacts on air quality, greenhouse gases, and energy are less than significant. While construction vibration was identified as a significant impact, it will be managed through a 20-foot heavy-equipment buffer zone. Other critical requirements include the retention of a qualified paleontologist prior to grading, adherence to ASCE 7-16 seismic design parameters, and compliance with OSHA standards for all excavations. The project also requires a preliminary water quality management plan and a mitigation monitoring and reporting program to ensure biological resource protections, such as burrowing owl and nesting bird surveys, are implemented.