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Laurel UJand Architecture 1718 Logan Avenue South Minneapolis, MN 55403 612 874 1086 1 p laurei@lauretuttand.com I e 2090 Shoreline Drive Orono, MN 55391 Conditional Use Permit Application Project Narrative January 18, 2017 The impervious surface or hardcover on the property will increase minimally with the construction of the new cabin. An additional 873 S.F will be added to the footprint of the new structure, over and above the footprint of the original cabin. This will increase the impervious surface on the property by approx. 0.58%, or less than 1% of the total hardcover. The existing hardcover on the property totals approx. 13.07% of the 3.79 -acre property. It wilt increase to 13.65% of the total property, if the new cabin is constructed. The proposed new cabin, along with the existing principal structure, noted as the "2 -story wood frame house" on the property survey, constitute approx. 3% of the hardcover on the property. The floodplain area of the parcel is significant. Except for the raised area and hillside located at the west end of the property, where the principal structure is sited, the majority of the property is below the 931.5 contour line, the 100 -year flood elevation. There are no alternate locations for the replacement of the existing cabin, without constructing within the established floodplain. The existing grade elevations on the property are under stress by higher lake levels, managed by entities outside the control of the property owner. The property has been held by the same family for over 100 years. The current heir proposes to continue to use the property as a seasonal family residence. The existing cabin is no longer suitable or habitable for the children and grandchildren of the property owner. The owner seeks to replace the cabin with a new structure basically in the same location as the current structure. The southern perimeter or edge of the new structure will remain the same. The new structure will shift approx. 15' to the west. This wilt allow the established landscape and gardens on the property to remain in place and it wilt allow the new structure to be located well beyond the 35' setback or buffer associated with the delineated wetland. (See the proposed property survey for reference.) The elevation of the new structure has been designed to set the top of the main level subfloor at the Minnehaha Creek Watershed District's "low opening minimum" of 933.5. This will allow for all service utilities, including ductwork, to be elevated above The City of Orono regulatory flood protection elevation (RFPE) of 932.5, as outlined in City Code Sec 78-1125 (e). The schematic plans include two mechanical rooms located on the main level of the residence. The mechanical rooms will allow for the installation of all HVAC equipment, as well as electrical, AV/data, and plumbing equipment, to be located above the RFPE. The main level and upper level floor plates will be structured with 16" floor trusses to allow for the installation of ductwork, as well as electrical and plumbing lines, within the floor plates. Additional mechanical equipment will be located in the attic space above the upper level of the proposed structure. All exterior skirting or base materials at the perimeter of the house will be designed to prevent flood waters from accumulating below the main level floor structure. A preliminary review of the proposed project by the Minnehaha Creek Watershed District indicates that issues related to erosion control, wettand protection and floodplain alteration will have to be addressed. A Water Resource Permit Application Form has been submitted to MCWD and a joint meeting between the City of Orono and MCWD has been scheduled to ensure compliance with all permit requirements.