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Home My WebLink AboutExhibitB Referral Comments.121 W Bleeker.2021.03.24121 W Bleeker – HPC Conceptual Review Engineering Comments Carly McGowan March 11th, 2021 Comments to be resolved prior to HPC approval: 1.The proposed water service line is shown to go through the drip line of a large tree, with excavation likely required into the drip lines of two other large trees. Applicant shall work with the Parks Dept to resolve this issue and coordinate water line placement prior to HPC approval. 2.Per the CoA Urban Runoff Management Plan (URMP), drywells must be located a minimum of 10’ away from property lines and structures. The plans show the water quality drywell located less than 10’ away from the property line. A variance will not be granted for the distance between the drywell and the property line. If a variance is requested for the distance between the drywell and the structure, applicant must submit a variance request and a letter from a geotechnical engineer that the building foundation will not be compromised. This shall be resolved before HPC approval. 3.What transformer serves the property and does the existing transformer have capacity for the increased use? Will this property require a new transformer? Work with the City Electric Department to determine available capacity. A Load Calc Form will be required at time of building permit. Hotel Aspen is planning on upgrading transformers on their property. Verify that the proposed work aligns with the planned transformer work at Hotel Aspen. This shall be resolved before HPC approval. Other Comments: 1.At building permit, plans shall show how the water service line ties into the structure. An unrestrained service line through the house is not recommended. Instead, plans should include a small mechanical room at the front of the house to switch to internal plumbing. 2.Since this property is in the Aspen Mountain Drainage Basin, detention is not required. However, it needs to be clearly shown how runoff above the WQCV leaves the site. With the proposed drywell the overflow route is not clear. At building permit, applicant will need to show how additional runoff is routed to the City’s storm system without impacting neighboring properties. If this can’t be accomplished, detention will need to be provided. 3.Stormwater from all impervious areas on the property must be treated for water quality. 4.Only one drywell is proposed on the planset, but the detail calls out the connection to a second drywell. If two drywells are proposed, both must meet the 10' setback from all structures and property lines. 5.Clarify the purpose of the filter fabric around the drywell. Studies show that filter fabric is the first thing to clog, and removing or repairing the filter fabric would require excavating the entire drywell. 6.Clarify what the 8.5’x24’ dotted line around the drywell represents. 7.This property is in a sidewalk deferred zone. A sidewalk will not be required at this time. EXHIBIT B - REFERRAL COMMENTS From:Bonnie Muhigirwa To:Sarah Yoon Cc:Denis Murray; Nick Thompson Subject:RE: HPC Referral: 121 W. Bleeker Date:Friday, March 12, 2021 2:59:46 PM Attachments:image003.png image004.png image005.png image002.png image007.jpg image008.jpg image009.jpg image010.jpg image011.png Hi Sarah, Building Comments: Fire sprinklers will be required because the fire area exceeds 5,000 sf. Exterior stair to the roof deck does not meet fire separation distance requirements per 2015 IRC Table 302.1(2). Projections need to be at least 2 feet from the property line and have a 1 hour fire-resistance rating if less than 3 feet from the property line. Window well can not be located in a patio without guard protection per city policy https://www.cityofaspen.com/DocumentCenter/View/6195/Emergency-Escape-and-Rescue- Window-Wells The guest mater suite located in the historic resource needs a compliant emergency escape and rescue opening per R310.2.1 Hot tub at the roof deck will need to be located at least 18” from the deck edge or the guard height will need to extend 18” above the top of the hot tub per city policy https://www.cityofaspen.com/DocumentCenter/View/6202/Hot-Tub-and-Spa-Safety-Railings Snow fencing is required on the historic roof where snow sheds into the window well on the east side. Thanks, Bonnie Muhigirwa Plans Examiner / Building Inspector III Community Development 130 S Galena St. Aspen, CO 81611 p: 970.429.2787 c: 970.309.5119 www.cityofaspen.com From:Jim Pomeroy To:Sarah Yoon Subject:Zoning notes for 121 W. Bleeker Date:Saturday, March 13, 2021 1:54:32 PM Attachments:image009.png image010.jpg image011.jpg image012.jpg Here are zoning notes for 121 W. Bleeker. 1. Yard exceptions needed: Fire feature, and possibly a built in barbeque (it only shows on a couple of sheets) that are placed between a street and structure. 2. The exterior stairs in the west side yard setback need an exception. 3. The rear basement and second floor deck need a 5’ rear setback variance 4. The east side yard has AC units taller than allowed. If those can be set lower into the ground in some sort of “vault” so they are no more than 30” above the surrounding grade, then no setback variance to the east will be required. If they cannot be lowered the applicant will need an east side yard setback variance for the higher than 30” AC units. 5. Combined side yard setback – the combined side yards are supposed to be 14.94’. If the stairs and the AC units receive a variance, then the combined side yard will be reduced to 10’. 6. There are height challenges for the rear, non-historical, section of the project. Because the areaway/lightwell is larger than 100 sq. ft., height for all of the rear element on the property will be counted from the bottom of the areaway per 26.575.020.F.4, Allowed Exceptions to Height. Currently as drawn, the entire rear (new) section of the house does not meet height. The applicant will either need to reduce the size of the areaway to 100 sq. ft. or less or ask HPC for a variance. There are currently no height points being shown on the plans. Without these height points being added, there is no guarantee that the applicant meets height even without the areaway. Please review section 26.575.020.F.2.c) for how to measure height when there are multiple pitches within one vertical plane. To promote the health and safety of our staff and community and to minimize the spread of COVID-19, Community Development staff are conducting business by email and phone and are only available in person by appointment. Contact information for our entire staff and how best to get the services you need can be found on our website: cityofaspen.com/177/Community- Development. Thank you for your understanding. Cheers, Jim Pomeroy Zoning Enforcement Officer 130 S. Galena St. Aspen, CO 81611 p 970.429.2745 c 970.319.2565 www.cityofaspen.com www.aspencommunityvoice.com Notice and Disclaimer: This message is intended only for the individual or entity to which it is addressed and may contain information that is confidential and exempt from disclosure pursuant to applicable law. If you are not the intended recipient, please reply to the sender that you have received the message in error and then delete it. 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