07-22-1985 Council Packet - Laserfiche WebLink

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Zoning File #943 July 17, 1985 Page 2 Because there is a drainage break which forces the majority of the run-off to flow to the east, I have also included in the hardcover calculations (Exhibit F.) a set of percentages based on the drainage direction calculation method. Under this method the actual west - draining hardcover is 17.3% and the east -draining hardcover will increase from 21% to 23%. Regardless of the method chosen for hardcover calculation, it is clear that there is an existing excess of hardcover, although this lot appears to have relatively less hardcover than many of the neighboring properties. You may recall the Mortenson application, similar to and next door to the Purdy application. In that case, the 0-75' hardcover was at 13.2%, decreasing slightly to 12.6% as a result of their project, and in the 75-250' zone, an increase in hardcover from 17.2% to 27%, was allowed based on special treatment of the proposed deck. In that case, the final allowed hardcover for the entire lot was 2,052 square feet where the overall maximum normally allowable hardcover was 1238 square feet, i.e. 1.66 times the maximum allowed amount. In the Purdy application, a total of 4561 square feet is requested where a maximum of 2,212.5 square feet would normally be allowed, or 2.06 times the maximum allowable. To be consistent with the Mortenson application, the Purdy's equivalent request would be 3673 square feet allowed, so that 888 feet of Purdy's existing or proposed hardcover would have to be made non -hardcover. This amount is feasible if plastic is removed from the trampoline area rock bed, from under the existing rear yard deck, from the rock beds on the northwest and northeast sides of the house, and by removing the kennel patio blocks. The final actual hardcover numbers on the traditional method basis, for the 5-year plan, is a decrease in the 0-75' zone from 24.3% to 13.9%, and an increase in the 75-250' zone to 29.4% (or less if portions of the new hot -tub deck are treated and considered as non -hardcover). At the Planning Commission meeting, the Purdys noted that certain items of hardcover which may not have been taken into account with Mortenson's review might increase the 1.66 multiplier somewhat. Staff has not further reviewed this. The Council has recently made a clear directive to staff that when existing hardcover e^-eeds the allowable amounts, any trade-offs will require a variance application and approval. The Council did note that they would consider an abbreviated variance format for certain types of applications where trade-offs were concerned, which would speed up the process. This format has not been finalized or initiated as of yet.