P-2 C15-2019-0055 LATE BACKUP PART1 — original pdf

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P-2/213Table of Contents3 Civil Engineering Letter Concerning Drainage, Jeffrey S. Kessel, P.E.4-9Our Compromise in Slide Form10-22Photographs 10-13Area of Character14-17RimrockCritical Environmental Features18-21Stilt House at 1806 Ski Slope22-29Supporting Documents: Stilt House22Chris Lewis, Stilt House Variance Request (2015)23-25Site plans for Stilt House on this Property26Advantages of Stilt House ConstructionLegal Clarification27Vested Rights Flow Chart28-29Rules and Rights 1980 Lake Austin Watershed OrdinanceP-2/214P-2/2152803 EDGEWATER C15-2019-0055 INTERESTED PARTY SUGGESTIONS –JAN 13, 2020•The Board of Adjustment has encouraged us to seek a compromise rather than simply advocating denial of this variance request. We recognize that the applicants have decreased their project’s size, but its scale and appropriateness continue to concern us. Do these results conform to the area of character of the neighborhood? •We are suggesting reasonable development to enable the owners to enjoy the property with less environmental impact.P-2/216We would propose an alternative development model of a “stilt house” with a pier and beam foundation, a minimal impervious footprint, and a gravity-fed septic system.A recent example of this construction is 1806 Ski Slope Drive, situated on Lake Austin less than a mile from 2803 Edgewater. We also suggest that the owners might utilize the adjacent lot which they also own for their septic field. Rough sketch of sample “Stilt House”1806 Ski Slope Drive2803 EDGEWATER C15-2019-0055 INTERESTED PARTY SUGGESTIONS –JAN 13, 2020Advantages of “stilt” construction –flexibility of placement on slopes, less need to alter and grade the land, less need to damage or remove trees, and greatly simplified drainage requirements.P-2/217We’d like to see fewer retaining walls, especially in close proximity to the top of the hillside. We’d like to see a gravity-fed septic system which doesn’t come so far up the hillside. Water Resources Engineer Jeff Kessel, in his letter [attached], notes that there are “drainage system disconnections”. He states that the proposed drainage conditions do not address most of the specific site alterations or show how runoff will be directed. He questions how the proposed increase in impervious cover can be managed without causing scour, erosion and offsite impacts. 2803 EDGEWATER C15-2019-0055 INTERESTED PARTY SUGGESTIONS –JAN 13, 2020P-2/218