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HomeMy WebLinkAboutStaff Presentation.312 W Hyman Ave312 W HYMAN Aspen Historic Preservation Commission (HPC) * Visual representations by Jeffrey Woodruff and by Staff July 27, 2022 CURRENT CONDITIONS 312 W Hyman REQUEST FOR APPROVAL Land Use Approval Request: Final Major Development (Section 26.415.070.D) Description: Block: 46 Lot: P AND: - Lot: Q, City and Townsite of Aspen, Colorado Parcel Identification Number: PID# 2735-124-64-006 Current Zoning: R-6 (Medium-Density Residential) 312 HISORIC BACKGROUND Figure 1 – 312 W Hyman, near the end of construction, 1956. Note the fenestration. Figure 2 – 312 W Hyman, 1957 Figure 3 – 312 W Hyman, current configuration with new double doors at first floor. Historic Views of the South and West elevations HISTORIC LANDMARK - ALTERATIONS 1.Two-story addition on the West elevation proposed as the primary entrance to the residence with a new interior stair to the second floor 2.Two-story addition on the North elevation proposed as additional living space 3.Wrap-around deck at the NE corner of the residence 4.New windows on the East, West and North elevations enlarging existing openings at the first and second floors 5.A change in the existing windows on the South elevation at the deck, enlarging to glass doors 6.New glass sliders at each of the garage door openings, while keeping the garage doors intact as a type of privacy door/shutter on the South elevation. 7.New triangular windows below the eaves at either side of the existing attic vent on the South elevation. Attic vent will be changed to a small window, as the current ceiling will be removed to allow for the existing roof trusses to be exposed. 8.New flush-mounted skylights to be added 9.New Chimney 10.New siding located on the East elevation Changes to the Historic Landmark, view from SW Corner Staff strongly supports aspects of the current plan including minimal alterations to the landmarked structure, without moving the resource or creating an extensive addition, while proposing to reduce energy consumption and making an energy efficient home. Staff recognizes that the design features proposed design features that are in direct conflict with the design guidelines, as discussed in the next slides. CHANGES TO THE HISTORIC LANDMARK HISTORIC LANDMARK - ALTERATIONS 1.Two-story addition on the West elevation proposed as the primary entrance to the residence with a new interior stair to the second floor 2.Two-story addition on the North elevation proposed as additional living space 3.Wrap-around deck at the NE corner of the residence 4.New windows on the East, West and North elevations enlarging existing openings at the first and second floors 5.A change in the existing windows on the South elevation at the deck, enlarging to glass doors 6.New glass sliders at each of the garage door openings, while keeping the garage doors intact as a type of privacy door/shutter on the South elevation. 7.New triangular windows below the eaves at either side of the existing attic vent on the South elevation. Attic vent will be changed to a small window, as the current ceiling will be removed to allow for the existing roof trusses to be exposed. 8.New flush-mounted skylights to be added with shades 9.New Chimney Reconstructed Chimney at original location 10.New siding located on the East elevation 11.Exterior Stairs moved 4’ to the North Changes to the Historic Landmark, view from SW Corner Staff strongly supports aspects of the current plan including minimal alterations to the landmarked structure, without moving the resource or creating an extensive addition, while proposing to reduce energy consumption and making an energy efficient home. Staff recognizes the redesign proposed features all requested changes by HPC, as discussed in the next slides. CHANGES TO THE HISTORIC LANDMARK PROPOSED EXTERIOR CHANGES Proposed West Elevation Exterior Changes -Form, Materials, and Fenestration The proposed elevations from the previous submittal show multiple areas of concern. Proposed North Elevation Proposed East Elevation Proposed South Elevation PROPOSED EXTERIOR CHANGES New Proposed West Elevation Exterior Changes -Form, Materials, and Fenestration Staff finds the overall design of the new addition of the one car garage at the north side of the property to meet the relevant Historic Preservation Design Guidelines. Staff understands the new designs of the historic resource meet the Preservation Design Guidelines, and the requests of the HPC, with 2 areas to specifically address for this project (shown in green). •flat skylights for daylighting •move the exterior stairs to the North by 4’ in order to capture the space below as functional living space Staff suggests that these two design features encourage the preservation of the historic structure as it is, without relocation, while embracing energy efficient upgrades. New Proposed North Elevation New Proposed East Elevation New Proposed South Elevation PROPOSED EXTERIOR CHANGES New Proposed West Elevation Exterior Changes -Form, Materials, and Fenestration Staff finds the overall design of the new addition of the one car garage at the north side of the property to meet the relevant Historic Preservation Design Guidelines. Staff understands the new designs of the historic resource meet the Preservation Design Guidelines, and the requests of the HPC, with 2 areas to specifically address for this project (shown in green). •flat skylights for daylighting •move the exterior stairs to the North by 4’ in order to capture the space below as functional living space Staff suggests that these two design features encourage the preservation of the historic structure as it is, without relocation, while embracing energy efficient upgrades. New Proposed North Elevation New Proposed East Elevation New Proposed South Elevation SITE PLANNING Referral Comments from Engineering: 1.For Major redevelopment all ROW needs to be brought into compliance. 2.Remove railroad ties and existing driveway. 3.New access needs to be off of alleyway. 4.Sidewalk needs to be installed along W. Hyman. Figure 5 – Proposed Site Plan with areas of concern outlined in red. North is located at the top of the site plan Staff supports the location of the new addition but recommends a restudy of the proposed design to address Engineering, Park, and Zoning’s referral comments. Referral Comments from Parks: Tree protection measures will be required at the driplines of trees and no activity whatsoever is allowed within this area without the express written consent of the City Forester or his designee. Referral Comments from Zoning: 1.Provide a zoning summary sheet. 2.Provide a compliant survey 3.Update Lot size 4.Setbacks Study: 5.Provide demolition calculations. 6.Parking requires 2 parking spaces 7.Label Floor Plans 8.The hot tub location prohibited 9.Elevations: scale and Residential Zoning Checklist required 10.Review Floor area calculations 11.Provide Roof plan 12.Exterior lighting plan Referral Comments from Building: 1.New exterior walls less than 5 feet from the property line will require 1-hour fire-resistance rating 2.Hot tub set back = 18 inches from the edge or the guardrail will need to be extended SITE PLANNING Referral Comments from Engineering: 1.For Major redevelopment all ROW needs to be brought into compliance. 2.Remove railroad ties and existing driveway. 3.New access needs to be off of alleyway. 4.Sidewalk needs to be installed along W. Hyman. Staff supports the location of the new addition but recommends a restudy of the proposed design to address Engineering, Park, and Zoning’s referral comments. Referral Comments from Parks: Tree protection measures will be required at the driplines of trees and no activity whatsoever is allowed within this area without the express written consent of the City Forester or his designee. Referral Comments from Zoning: 1.Provide a zoning summary sheet. 2.Provide a compliant survey 3.Update Lot size 4.Setbacks Study 5.Provide demolition calculations 6.Parking requires 2 parking spaces 7.Label Floor Plans 8.The hot tub location prohibited 9.Elevations: scale and Residential Zoning Checklist required 10.Review Floor area calculations 11.Provide Roof plan 12.Exterior lighting plan for Final ReviewReferral Comments from Building: 1.New exterior walls less than 5 feet from the property line will require 1-hour fire-resistance rating 2.Hot tub set back = 18 inches from the edge or the guardrail will need to be extended SITE PLANNING STAFF RECOMMENDATION RECOMMENDATION: Staff recommends approval for this application. 1)Fenestration as proposed on all elevations of the historic resource 2)Entrance 3)Proposed garage addition 4)Proposed North and NE Corner addition 5)Addition of Skylights 6)To move of the exterior stairs by 4’ to the North 7)All referral comments addressed STAFF RECOMMENDATION Section 1: Conceptual Major Development, and Setback Variations. HPC hereby approves Conceptual Major Development and Setback Variations with the following conditions: 1.Provide detailed drainage, utility, and landscape plans including final location of the proposed drain basins, and relationship of the utility paths to the trees and driplines to demonstrate that they do not conflict with remaining trees and hedges. Applicant will need to continue to work with all relevant City Departments regarding stormwater mitigation and site drainage. 2.Provide a detailed Roof Plan demonstrating location of gutters downspouts snow clips, vents, mechanical, and all other roof penetrations for Final Review. 3.Provide a detailed Preservation Plan including documentation of existing conditions and investigation of historic materials, and proposed restoration/treatments. This document will first be reviewed by staff and monitor prior to building permit submission but will be considered an iterative document that helps guide restoration efforts. 4. Provide specifications for the chimney, including height, location and all other details to staff and monitor prior to Final Review, and are also subject to review at Final Review 5.All skylights shall have sufficient shading to eliminate light pollution to other neighboring properties. 6.Provide details on the garage overhangs and window elements for Final Review. 7.Provide details and a plan for all new window layouts and proportions for all new windows to be reviewed for context and consistency with the existing windows on the main residence at Final Review. 8.The proposed combined side yard setback variance of 7.9’ is granted for the property to accommodate the location of the non-conforming historic structure, and will not be allowed to accommodate any other structures. 9.A development application for a Final Development Plan shall be submitted within one (1) year of the date of approval of a Conceptual Development Plan. Failure to file such an application within this time period shall render null and void the approval of the Conceptual Development Plan. The Historic Preservation Commission may, at its sole discretion and for good cause shown, grant a one-time extension of the expiration date for a Conceptual Development Plan approval for up to six (6) months provided a request for extension is received no less than thirty (30) days prior to the expiration date. STAFF RECOMMENDATION Section 1: Conceptual Major Development, and Setback Variations. HPC hereby approves Conceptual Major Development and Setback Variations with the following conditions: 1.Provide detailed drainage, utility, and landscape plans including final location of the proposed drain basins, and relationship of the utility paths to the trees and driplines to demonstrate that they do not conflict with remaining trees and hedges. Applicant will need to continue to work with all relevant City Departments regarding stormwater mitigation and site drainage. See Applicant’s Presentation – items reviewed with Engineering and approved 2.Provide a detailed Roof Plan demonstrating location of gutters downspouts snow clips, vents, mechanical, and all other roof penetrations for Final Review. 3.Provide a detailed Preservation Plan including documentation of existing conditions and investigation of historic materials, and proposed restoration/treatments. This document will first be reviewed by staff and monitor prior to building permit submission but will be considered an iterative document that helps guide restoration efforts. To be reviewed with new HPC Preservation Plan once complete. 4. Provide specifications for the chimney, including height, location and all other details to staff and monitor prior to Final Review, and are also subject to review at Final Review 5.All skylights shall have sufficient shading to eliminate light pollution to other neighboring properties. 6.Provide details on the garage overhangs and window elements for Final Review. 7.Provide details and a plan for all new window layouts and proportions for all new windows to be reviewed for context and consistency with the existing windows on the main residence at Final Review. 8.The proposed combined side yard setback variance of 7.9’ is granted for the property to accommodate the location of the non-conforming historic structure, and will not be allowed to accommodate any other structures. 9.A development application for a Final Development Plan shall be submitted within one (1) year of the date of approval of a Conceptual Development Plan. Failure to file such an application within this time period shall render null and void the approval of the Conceptual Development Plan. The Historic Preservation Commission may, at its sole discretion and for good cause shown, grant a one-time extension of the expiration date for a Conceptual Development Plan approval for up to six (6) months provided a request for extension is received no less than thirty (30) days prior to the expiration date. STAFF RECOMMENDATION RECOMMENDATION: Staff recommends approval for this application: FINAL MAJOR REVIEW. 1)All referral comments addressed 2)All items from Resolution #6 2022 addressed