The Oak Valley neighborhood  is located in the northwestern corner of Cupertino in a natural hillside transition with plentiful private and public open space. The neighborhood is bounded by Interstate 280, the City of Los Altos, Foothill Boulevard, Stevens Creek Boulevard and Santa Clara County open space/quarry uses. The Oak Valley development, located west of the railroad tracks, is predominantly defined by single-family residential homes developed in the late 1990s or early 2000s. Oak Valley is primarily accessed from Cristo Rey Drive west of Foothill Boulevard. Development has been directed away from steep slopes, view sheds, riparian corridors and areas of tree cover and architectural styles complement the natural setting. Other uses in the Oak Valley area include the PG&E Monta Vista Electrical Substation, The Forum senior living community and skilled nursing facility, Maryknoll Catholic Seminary (in Los Altos) and the Gate of Heaven Cemetery. Housing in this neighborhood includes detached single-family homes and senior independent and assisted living units. This area is served by several amenities including Santa Clara County's Rancho San Antonio Park, Canyon Oak Park and Little Rancho Park.
The areas south and east of the Union Pacific Railroad include low to medium density residential development, mostly in the form of clustered residential, and development designed with residential hillside standards to ensure that the impacts to are limited. The neighborhood has access to limited services within walking distance including a small neighborhood center at the intersection of Stevens Creek and Foothill Boulevards.