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HomeMy WebLinkAboutMemo.211 W Hopkins Ave Page 1 of 4 130 South Galena Street Aspen, CO 81611-1975 | P: 970.920.5197 | cityofaspen.com MEMORANDUM TO: Aspen Historic Preservation Commission FROM: Amy Simon, Interim Planning Director/Historic Preservation Officer MEETING DATE: October 28, 2020 RE: 211 W. Hopkins Avenue– AspenModern Historic Designation, Conceptual Major Development Review including Relocation, Variations, PUBLIC HEARING APPLICANT /OWNER: Matt Joblon, 205 S. Detroit Street , Suite 400, Denver, CO 80206, with the consent of property owner Vaughan Capital Partners, LP REPRESENTATIVE: Rowland + Broughton BendonAdams LOCATION: Street Address: 211 W. Hopkins Avenue Legal Description: Lots F and G, Block 53, City and Townsite of Aspen Parcel Identification Number: PID# 273512463003 CURRENT ZONING & USE: Single-family home, R-6: Medium Density Residential PROPOSED ZONING & LAND USE: Two detached homes, R-6: Medium Density Residential SUMMARY: The applicant has offered voluntary AspenModern historic designation of a 1956 Pan Abode, and requests Major Development, Relocation and Variation review for a project which involves restoring the resource, excavating a basement below it, and constructing a detached new home along the alley. STAFF RECOMMENDATION: Staff recommends continuation for restudy of the design of the new unit. Site Locator Map – 211 W. Hopkins Avenue 211 Page 2 of 4 130 South Galena Street Aspen, CO 81611-1975 | P: 970.920.5197 | cityofaspen.com BACKGROUND: 211 W. Hopkins is a 6,000 square foot lot located in the R-6zone district. The site contains a 1956 Pan Abode, which is essentially unaltered. It is still owned by the same family that originally built it. REQUEST OF HISTORIC PRESERVATION COMMISSION (HPC) The Applicant is requesting the following land use approvals: • AspenModern Historic Designation (Section 26.415.025 and Section 26.415.030) for negotiation of a voluntary designation. • Major Development (Section 26.415.070.D) for removal of a non-historic addition, restoration on the Pan Abode and construction of a new structure at the rear of the property. • Relocation (Section 26.415.090.C) to excavate a basement below the Pan Abode in its original location. The Historic Preservation Commission (HPC) is making a recommendation to Council on this application. STAFF COMMENTS: Following is a summary of staff findings. Please see Exhibits A, B, C and D for more detail. Staff supports the voluntary designation of this property as one of the best and most intact examples of a Pan Abode home in Aspen. Staff finds the benefits requested for designation (tree removal fee waivers, expedited permit review, and a floor area bonus) to be reasonable in consideration of the community benefit of the project. Staff finds the project approach to model the ideal preservation outcome. The cabin is preserved with no addition and new construction is detached and located at the rear of the site. Staff recommends some restudy of the design of the new unit in order to achieve the most sympathetic and compatible relationship with the small historic structure being preserved. The new structure must meet the Residential Design Standards, which will be confirmed based on the restudy. The location of a fence near the front of the Pan Abode is also to be reconsidered as part of a recommendation to continue this hearing for revisions to the application. REFERRAL COMMENTS: The application was referred out to other City departments to preliminarily identify requirements that may affect permit review. Applicant follow-up on these comments is needed prior to the next hearing. Parks: The new water line is to be installed under where the front walk is now located to minimize impacts to the spruce and aspen in the front yard. A site visit with the Forester is needed prior to this installation so he can direct the best route for the tree roots. Page 3 of 4 130 South Galena Street Aspen, CO 81611-1975 | P: 970.920.5197 | cityofaspen.com A tree permit must be issued for all removals. This permit will call out specifics for the dripline excavation for the trees at the front of the property. No trees in the right-of-way on West Hopkins are approved to be removed. The impact of the project on the driplines of neighbor’s trees will be need to be considered. Some neighboring trees might need to be removed. The applicant will be required to provide the Forester with a letter from the trees’ owners saying they accept the impacts and risks to their trees. The applicant may need to treat impacted trees with growth regulating hormones and trunk injections for bark beetle protection. Zoning: If the variation required for the east lightwell is approved, the maximum interior dimensions of the lightwell are to be stated in the motion, since this is the way the limit is expressed in the code. Engineering: One item needs to be addressed for this property prior to HPC approval. 1. The proposed transformer shown on sheet L300 does not have adequate space. 10’ in depth and 13’ in width needs to be provided for a 7’x7’ vault with 3’ clearances on the sides and back. The plan sheet shows only 5’ from the property line to the building. The following items will need to be addressed at building permit. 1. The proposed drywell must be 10’ from the neighboring property. A Geotech or structural engineer must supply a stamped letter stating the drywell within 10’ of the proposed structure and existing cabin foundation will have no adverse effects. 2. At building permit the project may be required to detach the existing sidewalk and install a new sidewalk with a 5’ landscape buffer between the curb and sidewalk. The neighboring property to the west has a current building permit and may detach their portion of the sidewalk depending on existing tree constraints. If this happens the sidewalk at 211 W shall also be detached. 3. At building permit the project will need to determine the water service line size and configuration for the two buildings. Currently two service lines are proposed per sheet L300. The water service line on the east runs under the dripline of the large spruce tree. The excavation that close to the tree trunk will most likely kill the tree. This needs further vetting. 4. Foundation drywells are proposed in close proximity to the east spruce tree. Excavation cannot take place within the dripline of the tree. It needs to be shown excavation can take place to accommodate the foundation drywells without adversely affecting the tree. RECOMMENDATION: Staff recommends the Historic Preservation Commission continue the project with the following direction: Page 4 of 4 130 South Galena Street Aspen, CO 81611-1975 | P: 970.920.5197 | cityofaspen.com 1. Consider the Parks and Engineering referral comments and any potential adjustments needed to the project design. 2. Work with Utilities to determine the necessary transformer size and location, which may impact the placement of the new unit. 3. Restudy the fence on the west side of the Pan Abode. 4. Restudy the new unit for compliance with guidelines 11.3., 11.4 and 11.6. 5. HPC is to provide direction on the appropriateness of a floor area bonus and setback variation for the lightwell proposed for the east side of the new unit. 6. Staff supports the request for tree mitigation fee waiver, expedited permit review, 150 square feet in total floor area bonus and 115 square feet in deck bonus. 7. As part of the approval to relocate the house on the site, the applicant will be required to provide a financial security of $30,000 until the house is set on the new foundation. The financial security is to be provided with the building permit application, along with a detailed description of the house relocation approach. ATTACHMENTS: Resolution #__, Series of 2020 Exhibit A – Historic Designation and Benefits Criteria/Staff Findings Exhibit B – Historic Preservation Design Guidelines Criteria /Staff Findings Exhibit C – Relocation Criteria/Staff Findings Exhibit D – Setback Variation Criteria/Staff Findings Exhibit E – Application