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To: Mayor Grabek & Orono Council Members City Administrator Bernhardson From: Michael P. Gaffron, Asst Planning & Zoning Administrator Date: Octobe: 20, 1.988 Subject: #1346 Einar Hagberg, 740 North Arm Drive - Variance - Resolution Application - Hardcover variance to construct a detached storage garage. Zoning District - LR-lB List of Exhibits Exhibit A - Staff Drawing on Survey Indicating Sewer Line Location & Proposed Garage Location Revision Exhibit B - Planning Commission Nction Notice of 10/20/88 Exhibit C - Memo & Exhibit of 10/13/88 Discussion - Please review the memo and exhibits of October 13, 1988. The applicant proposes to construct a detached storage garage of 576 s.f. floor area near the northwest corner of his property. Hardcover in the 0-75' zone is 2,070 s.f. or 18.6% with no charge proposed. Hardcover in the 75-250' zone is 7,148 s.f. or 32.9% which would be increased by 480 s.f. or up to 35.6%. In the 250-500' zone existing hardcover is 900 s.f. or 30% and will increase to 996 s.f. or 33.2%. In reviewing this, Planning Commission felt that the gravel driveway above the municipal sewer line, which provides access should the City need to maintain that line, is not a fully gravelled surface and is not driven on extensively, but serves a public purpose, so that it should be excluded from both sides of the hardcover calculation. While this may be an unusual approach, making those calculations results in 0-75' hardcover of 11.58 and 75-250' hardcover of 29.5%, before the new garage is included. Planning (-cmmission did not feel that it was necessary to remove any existing hardcover on the property to accommodate this hardcover increase. the Planning Commission, at their October 17th meeting, recommended on a 5-0 vote to approve the subject garage addition without any hardcover removals. Sewer Location Issue - Since the Planning Commission review, staff has discovered that an additional sewer line exists along the north line of the property near the storage garage. This line apparently serves no houses, but is used as a system flushing paint. Because that pipe is only 5' from the proposed garage, and the standard easement for sewer purposes would be 10' either side of the pipe, it is appropriate to require that them property owner .relocate that proposed garage to be at least. 10' from the sewer line. This should cause no apparent problems for the property owner.