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<br /> <br />WESTERN STATES <br />Engineering, Inc. <br /> <br />4877 E. La Palma Ave. Ste. 707 <br />Anaheim, CA 92807 <br />(714) 695-9300 <br />(714) 693-1002 fax <br />License # 723791 <br />www.wsecmc.com <br /> <br />February 19, 2008 <br /> <br />City of Santa Ana <br />Planning & Building Agency <br />20 Civic Center Plaza (M-20) <br />P.O. BOX 1988 Santa Ana, CA 92702 <br /> <br />ATTN: Vince Fregoso, AICP <br />Senior Planner <br /> <br />RE: DP NO. 2007-80 (MASTER ID NO. 2007-79811), ER NO. 2007-214, CORE CAPITAL OFFICE <br />CONDOMINIUMS AT 2020-24 NORTH BROADWAY <br /> <br />Subject: Title 24 and Soundproofing Report <br /> <br />Dear Mr. Fregoso, <br /> <br />On February 13,2008 Western States Engineering conducted a visual inspection for the properties <br />located at 2020 and 2024 North Broadway in Santa Ana in order to verify compliance with the <br />requirements for off street parking, noise transmission, Title 24 energy conservation, open space, <br />setbacks, design guidelines, and landscaping. The inspection revealed the following: <br /> <br />1. Off Street Parking: <br />The parking is a subterranean and partially extends to the exterior of the building. The parking <br />required for the 35,017 square foot building (3/1000s.f.) would be 105 spaces while only 65 <br />spaces are provided. Due to building structural elements and available space no additional <br />parking spaces can feasibly be added due to these physical constraints. <br /> <br />2. Sound Transmission: <br />The walls separating the two buildings are built with solid 4" brick (excellent barrier for low <br />frequency sound waves).The two existing walls are separated by a 2" gap. It is our opinion that <br />in a normal office setting the combination of the two solid brick walls and the 2" separation <br />between provides sufficient soundproofing and noise reduction. <br /> <br />3. Title 24 Requirements: <br />To meet the current Title 24 energy conservation requirements would be a major hardship in <br />that it would require researching all the existing light fixtures and equipment; breaking into <br />existing walls and roof spaces to determine existing R values; and, possibly replacing all <br />glazing not meeting current heat loss, heat gain, or infiltration requirements. The process would <br />be very expensive and time consuming. The cost associated with the above compliance is <br />estimated to be $150,000. <br /> <br />4. Open Space: <br />There is no open space provided other than the 14ft landscaping setback provided along <br />Broadway Street and an existing lobby area serving both buildings. <br /> <br />32'rA0BI1IISUP 08-1 <br />'E-xlilBIT 5 <br />