12-E-21-HZ

Level II: Market Square H

Approved With Conditions

Recommendation

Staff recommends approval of Certificate 12-E-21-HZ, subject to the following conditions: 1) revision of window/opening design on barrel vault roof structure to create more symmetry, to be submitted to staff; 2) revision (or removal of) dumbwaiter element on rear elevation to meet City zoning and building code requirements, to be resubmitted to staff or Commission for approval.

Applicant Request

Additions

- Expansion of existing roof deck and addition of a new mezzanine (rooftop addition) on the existing roof. The addition will be constructed along the rear half of the building's rooftop, measuring approximately 40' long and extending the full width of the building (approximately 13' wide).
- Addition features new masonry-clad walls with a steel barrel-vault roof structure. The addition's walls feature seven clerestory windows. From the rooftop deck level to the top of the structure, the rooftop addition measures 17' tall. A second barrel-vault roof structure rests on top of the first, approximately 2' above the first roof vault.
- Existing wood pergola towards the rear of existing roof deck will be removed. Mechanical units will be relocated towards the rear elevation of the building on a mechanical platform. Expansion of rear egress stair.
- Conditions of approval per 12/16/2021 HZC meeting: 1) revision (or removal of) dumbwaiter element on rear elevation to meet City zoning and building code requirements, to be resubmitted to staff for approval.

Market Square H

- Style: Vernacular Commercial, c.1890
  - Two-story brick building with double-hung windows, prism galss transom. Corbelled cornice with limestone band and section of brick arches and front parapet, stone stringcourse and sills with brick dentil molding. Altered storefront.

Applicable Guidelines

Market Square Design Guidelines and Designation Report, adopted by the Knoxville City Council on July 24, 2001.

- Secretary of the Interiors Standards for Rehabilitation: referenced by the Market Square Design Guidelines, and the principels are utilized as a basis for those guidelines. The below Standards have been referenced in previous HZC reviews of rooftop additions.
  - 1. Every reasonable effort shall be made to provide a compatible use for a property which requires minimal alteration of the building, structure, site and its environment, or to use a property for its originally intended purpose.
  - 9. New additions, exterior alterations, or related new construction will not destroy historic materials, features, and spatial relationships that characterize the property. The new work will be differentiated from the old and will be compatible with the historic materials, features, size, scale and proportion, and massing to protect the integrity of the property and its environment.
  - 10. New additions and adjacent or related new construction will be undertaken in such a manner that, if removed in the future, the essential form and integrity of the historic property and its environment would be unimpaired.

See Guidelines

Meeting Date