Commission approves addition and parking changes at 4914 Florida Avenue after debate over square footage

The Chattanooga Historic Zoning Commission approved plans for an addition and exterior rehabilitation at 4914 Florida Avenue in the Saint Elmo Historic District after a lengthy discussion about whether the new conditioned area would be larger than the historic house.

The property, a structure dated circa 1917, will receive a rear addition and an expanded gravel driveway with parking; the commission approved the design with conditions that stairs may be wood or concrete, the front door be a wood half‑light, and the project proceed as shown on the approved plans.

Why it matters: Staff and commissioners cited the Saint Elmo design guidelines because additions should be secondary, smaller, and compatible with the original building in roof shape, materials and massing. Commissioners focused on whether demolition or removal of a sunroom in prior plans had been counted toward the new total area, and on how to interpret square footage for design review.

Applicant presentation and numbers: Staff reported existing conditioned area of roughly 1,290 square feet and a combined total conditioned area of 2,309 square feet in earlier materials; the applicant’s team clarified that earlier drawings had included a sunroom in the new area by mistake. Architect Matthew Lewis and designer Denise Shaw explained they removed the sunroom from the new addition to ensure the new conditioned area would be smaller than the original house as required by the guidelines; the front portion to remain was measured and the new footprint shown on the approved plans was represented as compliant.

Commission discussion: Commissioners pressed for “black and white” numbers to avoid setting a precedent that allows additions larger than original houses. Staff and the applicant discussed assessor records versus field measurements and agreed the applicant would use the approved, reduced‑size proposal. Commissioners also discussed porch materials and agreed stairs could be wood or concrete; the front door was to be a wood half‑light.

Action and outcome: The commission approved case HZ‑25‑82 (4914 Florida Avenue) as submitted under Chattanooga City Code chapter 10, article 2, section 10‑15(e) and the Saint Elmo design guidelines, with the stated conditions: stairs may be wood or concrete; front door to be a wood half‑light; and location as shown on the plans. The motion carried unanimously.

Next steps: Staff will issue the COA and the applicant must obtain building and demolition permits as required for work to proceed.