12 ATTACHMENT 6 - Laserfiche WebLink

Road Noise A mitigation measure of the SEIR required that the future projects analyze whether they would add off-site traffic noise in excess of 55 dBA as described in the SEIR and, if they did,the applicant would need to contribute its fair share to mitigate the noise impact. The noise study determined that the estimated noise from vehicles associated with the project will not increase DNL at of site receivers along West Las Positas Boulevard. Therefore, the applicant is not required to provide mitigation to address this issue. Construction Noise Short-term construction noise would also be generated during construction. The SEIR included construction related mitigation measures (e.g., limiting construction hours, compliance with the City's Noise Ordinance, locating stationary construction equipment as far from occupied buildings as possible, etc.). Conditions of approval have been included to address these mitigation measures. Grading and Drainage The majority of the lot is relatively level with a perimeter landscaped berm along West Las Positas Boulevard. The applicant is proposing to generally maintain the existing grades on the property. Parking lot and roof drainage would drain into a landscaped drainage basin that would filter contaminants before entering the arroyos and, ultimately, the bay. It is estimated that an approximately 8,000 cubic yards of dirt would be excavated. As conditioned, staff finds the proposed grading and drainage plan to be acceptable and in compliance with applicable stormwater runoff requirements. The haul route will be subject to the approval of the City Engineer. Architecture and Design Staff believes that the proposed buildings are generally well designed and articulated. The building designs are "four-sided"with no side minimized with respect to articulation or detailing. Portions of the building walls would pop-in or-out to provide variation in the wall plane and break up the building. The rooflines of the buildings are broken up to reduce the building mass and add interest. Building walls vary in materials and colors to provide variety and interest. The awnings and wrought iron detailing enrich the quality of the architecture. In response to the comments from the Planning Commission work sessions, additional architectural elements, such as rafter tails, canvas awnings, horizontal bands, sconces, wrought iron railings, wooden gates, etc. were added to the buildings. In addition, a lowered wall and columns have been added to the otherwise plain wall on the northwest elevation of Building A near the garage. Staff believes that proposed design has responded to and addressed the Commission's comments. In response to Commission's comments concerning the roof design on the south elevation of Building C and Building D, the applicant added dormer features to break the massing of the roof. Staff found this approach improves the southern elevation of these two buildings and is acceptable. The applicant has also provided line-of-sight drawings (cross sections) of the PUD-103/Summerhill Apartment Communities Planning Commission Page 22 of 34