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The updated design for the proposed dwelling includes increased setbacks for the front and rear <br />yard and both side yards. Variances are required for the proposed front yard and rear yard setbacks. <br />Impervious Coverage — Variance Requested <br />In the R-1 District and the Shoreland Overlay District, the maximum impervious surface area <br />permitted without a variance is 35 percent of the property or 2,930.2 square feet of the Subject <br />Property, as calculated based on the proposed lot area of the consolidated lot. The existing <br />impervious area for the 1622 Lake Johanna Blvd parcel is 2,931 square feet which is 35.1 percent <br />of the property. The Applicant is proposing an impervious area of 2,924 square feet and 34.9 <br />percent of the property as calculated based on the lot area of the lots to be consolidated. <br />In the revised plans, the Applicant decreased the footprint of impervious surface coverage on the <br />site by reducing the dwelling and deck footprint and is proposing to use permeable pavers for the <br />patio and the driveway. The proposed permeable pavers would not count as landscaping, though <br />they do not increase the impervious coverage on the lot. The Applicant's request is that the <br />permeable surfaces be considered to meet the requirements for impervious surface coverage. With <br />these modifications, the proposed would reduce the impervious surface coverage across the <br />property by seven (7) square feet. <br />Per the Shoreland Regulations, at the discretion of the Zoning Administrator, up to five (5) percent <br />of a lot's required landscaped area, but not exceeding 700 square feet, may be covered with <br />pervious hard surfaces subject to the approval of a Shoreland Mitigation Plan. Five (5) percent of <br />the proposed consolidated lot's required landscaped area is 272.09 square feet. The proposed <br />permeable patio is 400 square feet and there is also the proposed permeable driveway and <br />pedestrian path to the front entry. As shown, the proposed would exceed this provision and require <br />a variance for additional permeable surface credit. <br />The Applicant provided a shoreland mitigation plan as part of the supplemental narrative for the <br />City Council's consideration. The submitted plan addresses impervious surface coverage and the <br />intent to work with a civil engineer on plans showing how the permeable pavers would absorb the <br />surface water flow directed from the roofs via downspouts and underground drainage pipes. <br />The Department of Natural Resources reviewed the updated plans and recommended a condition <br />related to impervious surface coverage based on the proposed permeable pavers. In the drafted <br />condition, the Applicant shall submit to the DNR a plan showing that rain gutter discharges will <br />be directed away from the lake and into an infiltration basin. The City Council may also consider <br />a condition of approval noting that the Applicant shall provide a plan with sign -off from a civil <br />engineer and that the proposed permeable paver square footage shall not exceed 15 percent of the <br />required landscaped area, which is equal to 816.27 square feet. This percentage could allow for <br />the Applicant to develop the lot with a functional permeable patio and driveway. <br />Structure Coverage — Variance Requested <br />The R-1 District allows for a maximum structure coverage of 25 percent of the lot area. This would <br />allow for up to 2,093 square feet of structure on the consolidated lot area. The existing structure <br />coverage on the 1622 Lake Johanna Blvd parcel is 2,118 square feet for 48 percent of the property. <br />The Applicant is proposing a structure coverage of 2,758 square feet, 32.9 percent of the property <br />based on the consolidated lot area. <br />Page 10 of 18 <br />