Historic Zoning Commission

Scenic Drive NC: Level II

11-A-24-HZ

Staff Recommendation

Staff recommends approval of Certificate 11-A-24-HZ, subject to the following conditions: 1) final site plan to include information on retention or removal of existing trees; 2) landscaping to be installed or retained to conceal the front parking area.


Location Knoxville
937 Scenic Dr. 37919

Owner
Fred & Amy Trainer

Applicant Request
Accessory structure; Paving
Construction of a new attached garage and carport addition. The garage addition will be 12' wide and 20.5'deep, located on the northeast corner (rear of the right elevation). The one-story garage will feature a cross-hip roof clad in asphalt shingles, with a 21' by 21' carport massing facing east and a 20'-6" wide by 12' deep garage towards the rear of the property.

The carport will be supported by paired 10" square wood columns to match the existing and feature a gable field clad in shake siding. The garage will feature an existing 7' by 7' garage door relocated to the east elevation, with a casement with a pair of wood casement windows on the rear elevation.

Scope of work also includes installation of a new driveway. New driveway (unspecified dimensions) will extend from the left (west) side of the property and wrap in front of the house to connect with existing access to the garage and carport area. The second driveway extending from the right side of the house will remain, continuing to the lot in the rear.

Conditions of approval per 11/21/24 HZC: 1) final site plan to include information on retention or removal of existing trees; 2) landscaping to be installed or retained to conceal the front parking area.

Staff Comments
Neoclassical, c.1924
    Two story frame with wood shingle wall covering. Side gable roof with slate covering, one story side ell including recessed porch, square wood posts. Ten light second story windows, twelve over twelve first story window. Front entry under gabled portico with arched ceiling, dentil molding, partial cornice returns, fluted square columns with Doric capitals. Fanlight above front entry. Two exterior end stone chimneys. Brick foundation. Rectangular plan. Major addition made recently. Designed by Barber & McMurry.

Design Guidelines:
New Construction-Primary Buildings, Additions and Accessory Buildings
1. A Description of Properties Inventory describing existing architectural designs and their features found in the Neighborhood is included in these Guidelines. An eclectic mix of styles is apparent. New designs are encouraged to interpret one of the design types identified as a "contributing" (C) structure, with size and features generally drawn from the design and appropriate to that style, although the same design cannot be repeated on another lot.
3. Materials commonly in use in the existing neighborhood houses are preferred. The following modern wall cladding material should not be used on primary building or on permanent accessory structures: T-111 plywood or similar products, vinyl or aluminum siding, exposed concrete blocks.
4. The maximum lot coverage for the footprint of a house and accessory buildings shall not exceed 30% of the lot. Pavement in front and/or side yards visible from public streets shall be minimized, so that the landscaping and plantings convey the impression of a residential setting. The desirable maximum lot coverage for all impermeable surfaces including the primary structure, accessory buildings, driveway, pool, patio, tennis court and other features on the lot is 50% of the lot. Impermeable surfaces on lots should not exceed 65%.
5. Side and rear setbacks of primary buildings constructed in the Scenic Drive District, or of contributing primary buildings combined with their new additions, shall respect the lot placement of existing historic buildings. In no case shall the side yards be less than 8 feet for a single story or 12 feet for a multi-story building, with a combined side yard measurement for both sides of the building of not less than twenty feet. The minimum rear yard for new primary buildings or buildings with new additions shall not be less than 25 feet.
6. New additions and constructions shall conform to the prevailing widths and heights of typical facades of adjacent houses. The footprint of new additions and constructions should be in character and proportion with contributing neighboring houses, even if originally platted lots have been combined into larger lots. Detached accessory buildings shall be proportional to the house in height and size.
7. Carports and garage doors should not face the street except in cases where there is no reasonable alternative. If they do face the street, garage entrances should be designed to be consistent with the home's architectural features.
8. The design of detached garages and carports and the materials of which they are constructed should be consistent with the character of the main structure.
9. The recommended location for additions is to the rear or side of existing buildings. Additions to the front of buildings are strongly discouraged because they obscure the original architectural designs. Front additions are not appropriate for contributing structures. If additions are to be made to the side elevations of existing buildings, they should be located at least five feet behind the front facade of the existing building.
10. Detached accessory buildings, including carports and detached garages, should be located at least fifteen feet to the rear of the front facade line and no nearer than five feet to a side or rear lot line. In size, they should not exceed the building footprint of the principal building and should be consistent in scale with the primary building on the lot.
11. The design of additions, accessory buildings, including carports, and modifications, in particular the front facade of the house, should be consistent with the character of the main structure.
12. If an addition or modification is made to an existing house, the wall cladding material should match or complement those on the existing house. Traditional combinations such as wood clapboard or wood shingle siding additions on brick or stone primary structures are acceptable if matching materials cannot be secured. The roofing material for additions and modifications should match the existing roofing material.
13. All construction plans shall assess and take into account the impact of drainage on both the subject property and neighboring properties

Roof Form and Coverings:
1. The minimum roof pitch should be appropriate for the style of house or addition that is being constructed as described in the Properties Inventory.
2. Houses should have complex roof shapes or roof shapes that are consistent with the architectural forms of the District.

Windows:
1. The size of window openings on the front and any visible side facades should be consistent with the design of the new building and with other houses of similar architectural design.
2. High quality fixed grid windows should be used. Snap-in grid windows should not be used. Simulated divided light windows with fixed external muntins or mullions are encouraged

Site Design:
2. Parking pads and circular driveways should not be placed in the front yard except in extraordinary cases where a driveway to the rear of the property is impractical or unsafe. In those cases, a small parking area may be constructed; pervious paving material is encouraged and landscaping should conceal the parking area from the street.
4. Because the streets of the neighborhood are routinely used by residents for recreational and community purposes, on-street parking should be avoided. In planning all construction, parking commensurate with potential occupancy needs to be considered, so that it is sized adequately for the number of occupants anticipated for residency of the house.
5. The maximum lot coverage of impermeable features such as paving, roofs, pools, patios, and other features shall be minimized as much as possible, in order not to create excessive run-off.
6. When driveways are constructed, they should be as narrow as possible.
7. Site plans for new construction must map mature trees and describe the measures that will be to conserve them, minimizing the loss of mature trees.
Applicant

Ethan Fields, F.E. Trainer Construction


Planning Staff
Lindsay Lanois
Phone: 865-215-3795
Email: lindsay.lanois@knoxplanning.org

Case History