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HomeMy WebLinkAboutFile Documents.1010 E Hyman Ave.0025-2022-BCHO (5) NA4a February 5, 2022 Via Email: Rick Magill rick.magill@cityofaspen.com RE: 1010 East Hyman: 0056-2020-BRES Dear Rick, The purpose of this letter and accompanying documentation is to facilitate your final review regarding the applicability of WELS standards to the remodel project at 1010 E Hyman. You have been in communication with our builder, Steeplechase Construction, through their General Manager, Jerry Thomas, regarding the information you require in order to facilitate your assessment. As a result, I am hoping the information below, combined with attached documents, will provide everything you require for your review. Property Address: 1010 E Hyman, Aspen Owner: Marilee Susi, MarileeSusi@gmail.com Permit Number: 0056-2020-BRES Water Account Number: WTR-012804630006 Original Permit & Change Order History: • The original building permit was approved in December of 2020. o Original permit is for full interior remodel, along with very minimal exterior work. O Exterior work on original permit included replacement of the walkway along the west side, as well as removal of a window well. • There is a change order currently under review by the City of Aspen related to waterproofing of the foundation on the west and south sides, due to historic water intrusion issues. • We are preparing to submit another change order related to interior changes, as well as for the installation of two drywells to collect surface water and water from the foundation footer drain. o Excavation for waterproofing and installation of the drywells will necessitate replacement of the existing landscaping. ▪ The square footage of proposed replacement landscaping and irrigation will be substantially identical to the existing landscaped square footage area. Background Leading to this WELS Applicability Determination: As indicated above, this remodel project initially included very minimal exterior work and, therefore, it was concluded that WELS MONIQUE AGNEW ARCHITECTURE ASPEN/ SAN FRANCISCO (646) 554-6362 M O@ M A A R C H D E S I G N.COM requirements were not triggered. However, after the original permit was granted, a thorough investigation was conducted to determine how to prevent future reoccurrences of historical water intrusion into the basement of this home, which have apparently been occurring over many years. During rain events, as well as during periods of significant snowmelt, standing water can be seen on the concrete floor in the basement. Because it is vital to the health and safety of the dwelling and residents, a waterproofing consultant was engaged to conduct a thorough review and provide recommendations, which included the following components: • Excavate the west and south foundation walls (foam block foundation): o Apply a layer of plywood over the foam, then apply a waterproofing system over the entire stem wall and footer o Install a foundation drain at the footer • Install 2 separate drywells on the property: o One to receive surface drainage from roof and rooftop deck drains, gutters, and downspouts o Another to receive possible sub-surface drainage from the newly installed footer foundation drain. In order to complete excavation work for waterproofing the stem walls and installing the drywells, a high percentage of the landscaped and hardscaped areas of the western half of this duplex lot will be disturbed. Once the exterior work is completed and the excavation is backfilled, the area of proposed replacement landscaping will be almost identical in square footage to the current landscaped area. Please see the attached site map, which indicates the disturbance area, as well as the are of existing and proposed landscaping. WELS Trigger Based on Disturbance Area: The property is a duplex situated on a 6,000 square foot lot, which is titled to the HOA. The area of disturbance will be 1,224 square feet, which is the entirety of the landscaped and hardscaped portion of the western half of the entire lot, excluding the driveway and rear stairwell. While the disturbed area is greater than the 1,000 square foot threshold, it does not meet the requirement for the disturbance area to also be at least 25% of the entire lot size, which is 1,500 square feet. Therefore, it is our understanding that the disturbance area threshold for WELS is not met. WELS Trigger Based on 50% or Greater ECU Rating from Existing to Proposed: It is our understanding that this calculation is based on landscaping/irrigation changes and plumbing fixture count changes. MONIQUE AGNEW ARCHITECTURE ASPEN/ SAN FRANCISCO (646) 554-6362 M O@ M A A R C H D E S I G N.COM NA4a • Landscaping/Irrigation Changes: As indicated above, the proposed landscaped and irrigated area will remain almost exactly as existing. As a result, ECUs related to irrigation will not change significantly. • Fixture Count: A Kitchen island sink will be added, but was offset by the removal of a sink at a wetbar in the basement. A shower steam unit will also be added. An existing garage hose bib will be converted to a full faucet, and another hose bib will be added to the Living Room exterior deck. • Based upon these minimal changes in irrigation and fixture count, it is our understanding that the ECU increase threshold for WELS is not met. If you would like to visit the site for a review of these components, we would be more than pleased to meet you and review the information above. We look forward to learning of your WELS determination on this project, Rick. Please let me know if I can support your review in any way. Respectfully Submitted, Monique Monique Agnew, AIA LEED AP MONIQUE AGNEW ARCHITECTURE ASPEN/ SAN FRANCISCO (646) 554-6362 M O@ M A A R C H D E S I G N.COM