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feet 9 inches wide, where a 25 -foot minimum drive aisle is normally required behind standard - sized parking spaces. Since there is no room to enlarge the drive aisle or move the parking space to the north, and drive aisles behind compact -sized spaces only need to be a minimum of 21 -feet wide, staff recommends that parking space no. 7 be designated as a compact space. A condition of approval addresses this item. Parking Based on Municipal Code requirements, the 2,530- square -foot commercial building with a 1,786- square -foot coffee shop /restaurant and a 744 - square -foot retail space requires 11 parking spaces (nine spaces for the coffee shop /restaurant and two spaces for the retail space). The applicants are proposing a total of 11 parking spaces, which would comply with this requirement. High parking demand uses such as medical offices and restaurants would be permitted uses for the property. In order to ensure that the parking demand of the future uses in the building doesn't exceed the 11 parking spaces provided, a condition of approval has been included restricting the uses in the building to not exceed the parking provided. Three (27 percent) of the 11 parking spaces would be designated as compact parking spaces, which complies with the City's 40- percent maximum. The compact ratio would be 36 percent if space no. 7 were changed to a compact space as discussed above. Staff finds the number of compact spaces to be acceptable. Grading and Drainage The site currently slopes up a few feet from Valley Avenue and then levels out. The applicants would lower the grades along the project frontage by a foot or two to better match the building finished floor elevation to the adjacent street grades. Staff finds the proposed grading to be minor and acceptable. Roof drainage would drain into two vegetated swalcs that would allow contaminants to be filtered from the stormwater before entering the arroyos and, ultimately, the bay. This is a type of stormwater runoff measure supported by the Regional Water Quality Control Board ( RWQCB) and local agencies like Pleasanton implementing the urban clean water runoff program. Because parking lots generate more contaminants than building roofs, staff and the RWQCB prefer treating parking lot drainage versus roof drainage. Although the site is somewhat constrained given the existing driveway grades at the west end of the site that must be maintained, staff believes that a portion of the new parking lot can and should drain to a bioswale. For example, staff believes that drainage from parking space nos. 9 -11 and some of space nos. 1 -5 could be conveyed to the bioswale next to parking space no. 1 if minor adjustments are made to the site grading. A condition of approval addresses this item. Page - 6