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here. She noted that it appeared one other benefit with Alternative No. 2 was that it reduced the retaining wall because the hammerhead turn is at the same level as the home, which is an improvement to the visual impact. Mr. Kirkpatrick replied that the access road for the 500 -foot elevation is identical, and the 510 -foot elevation is actually a slope up from where the hammerhead is. He explained that for every foot that is dropped, the building envelope is pushed out about three to three - and -a -half feet towards the Silver Oaks homes; therefore, the building envelope will need to be pushed towards the home going down because the grading will be in the back then; the slope will be graded in the back and the flat pad will be pushed out. He stated that the downside of this is that about 12,000 cubic yards of dirt is taken out versus the 6,000 cubic yards at the other elevation where the house is farther back. Commissioner O'Connor inquired what the actual heights of all the retaining walls are. Ms. Soo replied that as proposed, the height of retaining wall on the east side or the one closest to Silver Oaks varies from four feet to nine feet because of the slope, and the wall of the opposite side which is up against the hills is about three feet to four feet high. Commissioner O'Connor inquired if this is only along the roadway. Ms. Soo replied that it is along the roadway up because the retaining wall holds the road. Ms. Stern added that the roadway stays in the same place for all the Alternatives Commissioner O'Connor inquired if there would be a retaining wall around the back of the building pad. Ms. Stern replied that she was not certain if there would be a retaining wall at the back of the pad for Alternative No. 2. She referred the question to Mr. Kirkpatrick. Mr. Kirkpatrick replied that there is no retaining wall; the house just moves farther into the slope and extends out farther. Commissioner O'Connor inquired how many feet long of the retaining wall would be nine feet tall. He further inquired if the style of the material for that wall is just split concrete. Chair Olson stated that the applicant can address that when he comes forward to talk. Ms. Stern stated that staff will be looking at the design of that wall, and it will be approved by the Director of Community Development. She added that staff can include any direction on the design that the Commission may have. PLANNING COMMISSION MINUTES, February 12, 2014 Page 10 of 38