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ORANGE COUNTY HIGH SCHOOL OF THE ARTS Shared Parking Study INTRODUCTION The Orange County High School of the Arts (OCHSA) is cUlTently converting a 46,725 square foot office building at 801 North Main Street in the City of Santa Ana, into a 374 seat theater and 3,624 sf restaurant. The site itself includes 49 parking spaces, 13 of which are shared use. The remaining located immediately across Bush Street. The theater use will rely on a shared use parking arrangement with two adjacent parking lots (i.e., 1055 North Main and 1055 N. Bush Street). This parking study examines those sites to ensure adequate parking is available. The City parking code requires one parking space for each three seats and/or one space per 28 square feet of assembly area. Based on 374 seats, the City code parking requirement equals 125 spaces for the theater alone. In addition, to the theater (15,055 sf) and the restaurant (3,624 sf) there is a small bar (100:!: sf) and a common area which by City of Santa Ana parking code requires a total of252 parking spaces assuming the offices are vacant after 6:00 PM. The total office space available is conservatively estimated at a maximum of 28,000 sf. This creates a parking requirement of 84 parking spaces. Assuming no more than 10 percent of the office would be in use after 6:00 PM, the maximum peak parking demand for the evening uses is estimated at 260 spaces (252 + 8). However, the issue of code required parking is complicated somewhat by the multiple use of the building. During the normal workday (8:00 AM - 5:00 PM) about 28,000 square feet of the building will be utilized as office space that supports the theater use. The theater will only be used in the evenings (i.e., after 6:00 PM) when the offices functions are closed. Although the City code parking for a theater is one space for three seats, and this is a typical requirement, a sold-out performance with staff, actors and audience could exceed 108 spaces. A typical peak parking demand for a theater based on actual vehicle occupancy ranges ITom 2.25 to 2.75 persons per vehicle (i.e., other than staff, very few patrons drive to a theater performance alone). Use of a worst case scenario of 2.0 persons per vehicle indicates a peak parking demand of 187 spaces. However, the City code calculation of 260 spaces remains the critical issue. Therefore, it is concluded that for a sold out performance, shared parking for about 211 spaces (260 - 49) will be required. Orange County High School of the Arts Shared Parking Study Austin-Foust Associates, Inc. 92400 I rpt.doc 318-41