Alves Lane Apartments (County File #CDDP21-03011)

Alves Lane Apartments (County File #CDDP21-03011)

The applicant seeks approval of a Development Plan to allow the construction of a new apartment complex. Designed as family housing, the project proposes approximately 15 one-bedroom units, 15 two-bedroom units, 36 three-bedroom units, and 34 four-bedroom units. Vehicular access is provided around three sides of the building with surface parking at the ground floor. Site access is consolidated through a driveway on the eastern side of the subject property. The building creates an interior courtyard that will be a public outdoor amenity for the community residents. The courtyard will feature a play area, community gardens, seating areas, and community room access for an indoor/outdoor living experience for residents. The project consists of the following elements: • One multiple-family residential building consisting of three- and four-story elements and approximately 125,350 square feet of living, common/amenity, circulation, and utility areas; • 100 one-, two-, three-, and four-bedroom units (13 of which are reserved for lower income households); • A density bonus of 20% (17 units) beyond the 83 units allowed under the applicable density standards, as a result of the proposed affordable units and as permitted under the County’s Residential Density Bonus Ordinance; • 203 uncovered off-street parking spaces; • An approximately 16,000 square-foot interior courtyard with family play area, outdoor dining area, and passive seating areas; • An approximately 1,800 square-foot fenced dog park with dog drinking fountains, and pet waste stations; • Approximately 47,486 square feet of landscaping; • Perimeter fence; • An ungated driveway near the eastern side and a gated driveway at the western side of the property; • One monument sign identifying the development; • 8-inch water and fire protection lateral extensions from the project site to a new, 8-inch water main located within the Alves Lane right-of-way; • New 8-inch water main within the Alves Lane right-of-way extending approximately 2,500 linear feet from the intersection of Alves Lane and Virginia Drive to the intersection of Canal Road and Chadwick Lane. The new main extension will cross the Contra Costa Canal at locations east and west of the project site, and will do so via two existing roadway bridges and using one of three location options: 1) within split/multiple 4-inch services within the annular structure of the bridge, 2) attached to the bottom of the bridge with Unistrut fittings (similar to existing storm drain pipes), or 3) attached to side of bridge with Unistrut fittings; • 8-inch sanitary sewer lateral connection extending approximately 400 linear feet from the project site to an existing sanitary sewer main within the Alves Lane right-of-way; • Seven on-site bio-retention areas for drainage totaling 5,188 square feet; • Utility connections for electrical, gas, cable, and telecommunications to existing extensions within the public right-of-way, via underground joint trenches; • Construction of curb, gutter, and 5-foot-wide monolithic public sidewalk on the north side of Alves Lane fronting the subject property and extending approximately 700 linear feet east of the easterly subject property line of APN 093-100-060 to connect to the existing public sidewalk; • Street lighting and pavement widening along the subject property frontage of Canal Road with a curb face a minimum of 17 feet from the road centerline; • Cut and fill grading activities consisting of approximately: 8,000 cubic yards of cut and 13,000 cubic yards of fill, for a net total 5,000 cubic yards of soil; and • A lot merger of the two parcels, approximately 3.81 acres in area. The project requests the following concession, deviations, and exception: • A density bonus concession for a project height up to 45 feet (where 30 feet is the maximum pursuant to the Pittsburg/Bay Point BART Station Area Specific Plan); • Deviations for a 6-foot front setback (where 10 feet is required) and a 7-foot side yard (where 20 feet is required) to allow off-street parking spaces; • A deviation for a 9-foot side yard (where 20 feet is required) to allow the construction of the apartment building; • A deviation for a 1-foot side yard (where 20 feet is required) to allow the construction of retaining walls over 3 feet in height; • A deviation for a 28-foot side yard aggregate (where 40 feet is required) to allow off-street parking spaces, and the construction of retaining walls and residential improvements; • A deviation to allow front setbacks as small as 2-feet (where 10 feet is required) to allow the construction of retaining walls over 3 feet in height; and • An exception to collect and convey requirements (Chapter 914) to allow a diversion from drainage area (DA) 48B to DA 48D. In the event that future analysis of DA 48D finds that it is inadequate, the applicant has proposed an alternative drainage plan to use the existing drainage system in DA 48B to the west. The proposed alternative consists of the following elements: • Underground storm drain lift station vault with electric, duplex 10 horsepower (HP) ejector pumps (final size/capacity of vault to be determined); • Lift station sump pit; • Natural gas-powered emergency generator within an approximately 2.5-foot tall, 8-square-foot screened enclosure (location to be determined); • 60-inch underground storm drain line with ±10,600 cubic feet storage capacity; • Six storm drain manholes on the subject property for access to 60-inch storm drain line; • 6-inch underground force main line on the subject property; • One private storm drain manhole and transition force main on the subject property to connect to gravity storm drain in County right-of-way; • New, 12-inch storm drain pipe located within the Alves Lane right-of-way extending ±450 linear feet northwest to tie-in to the existing storm drain drain inlet (SDDI) on Alves Lane.

Contra Costa

Countywide, Northern California, San Francisco Bay Area

California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Housing and Community Development (HCD), California Department of Parks and Recreation, California Department of Transportation, District 4 (DOT), California Department of Water Resources (DWR), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), California State Lands Commission (SLC), Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Water Quality, State Water Resources Control Board, Division of Water Rights

Residential (Units 100, Acres 3.81)

Planned Unit Development, Use Permit

Aesthetics, Air Quality, Biological Resources, Cultural Resources, Drainage/Absorption, Geology/Soils, Hydrology/Water Quality, Noise, Population/Housing