Historic Zoning Commission

Fourth and Gill H-1: Level II

11-E-14-HZ

Staff Recommendation

Staff reccommends approval of the proposal.


Location Knoxville
900 Gratz St 37917

Owner
Carol Carol O'Donnell - Wendy Bach Wendy Bach

Applicant Request
Level II. Major repair or replacement of materials or architectural elements
Accessory structure; Doors; Windows
Level I repairs include:
Repointing of brick with historic mortar recipe (9:2:1 - sand, lime, Portland cement), replacement of missing brick with salvaged brick from new door opening (see level 2). Rebuild rotten roof rafters and decking, install new low-slope ("flat") roof using EPDM membrane.

Level II changes include:
Replace existing garage door (facing Gill Ave.) with new custom-built painted wood unit with windows across top (see submitted specs).
Install new exterior door (36" wide x 80" tall) in new opening cut into rear brick wall of garage (facing into yard) (see attached drawings.)
Replace deteriorated wood windows with new wood windows (will match profile of existing windows). Replace deteriorated wood sills with composite ones.
Add stone retaining wall on at terraced level to match existing in rear yard along Gill Avenue (corner lot). Cut stone units will match existing as closely as possible with height of stones being approximately 15 inches each for a total of approximately 2-1/2' high. Condition for approval: Retaining wall to be tapered back as it approaches the garage wall so as not tobe situated to the front of the garage. Install 42-inch-high wooden picket fence on top of wall.

Staff Comments
Queen Anne (c. 1895)
    Two-sotry frame with hip roof and lower cross gables, asphalt shingles, and inset single-pane attic vent windows. One-over-one double-hung windows. One-story hip roof front and side wrap-around porch with round wood columns with Doric capitals, turned wood balustrade. Two interior offset brick chimneys. Brick Foundation. Two-story bays ont side and front elevation. Irregular plan. (Contributing) One-story one-bay brick garage with flat roof and parapet.

WINDOWS
1. Vinyl and aluminum replacement windows should not be used.
2. Original windows should be reused. It will be much less expensive and much better historically to retain the original windows.
4. If replacement windows are necessary, they should be the same overall size as the originals, with the same pane division, and the same muntin style and exterior depth, width and profile. False muntins or grids should not be used.
9. Reuse existing, serviceable window hardware.



ENTRANCES
7. In replacing missing original doors, replacement doors should mimic doors typical for that architectural style, including materials, glazing, and pane configuration. Solid six panel or flush wood or steel design doors should only be used for entrances not visible from the public street. "Decorator" designed doors available from wholesale hardware stores are usually not appropriate for the architectural styles of the Fourth & Gill Historic District.

MASONRY
2. Identify and preserve masonry features that define the historic character of the building, including walls, railings, columns and piers, cornices and door and window pediments.

5. Match new mortar with the original mortar in color, composition, profile and depth. If necessary, analyze the original mortar to determine the proportions of lime, sand and cement. Do not use a "scrub" technique to repoint. Change the width or joint only if the change will return the joint to its original appearance.
Do not remove sound mortar.

6. Never repoint with mortar of high Portland cement content unless that is the content of the original mortar. Using a high percentage of Portland can create a bond that is stronger than the historic masonry material and can cause severe damage during the freeze-and -thaw cycle.
Applicant

Sean Sean Martin


Planning Staff
Kaye Graybeal
Phone: 215-2500
Email: contact@knoxplanning.org

Case History