Knoxville planning staff to propose cottage‑court and middle‑housing code amendments

Planning staff presented a set of proposed zoning changes intended to expand middle‑housing options while adding site and design safeguards, including a new cottage‑court standard and clarifications to Article 4.6 of the zoning code.

The amendments would add a cottage‑court housing type—small detached, house‑scale units grouped around a shared court—and change how “middle housing” applications are processed. Lindsey, planning staff, said the goal is to bring the standards to the Planning Commission in July and, if approved, to City Council in August.

The nut graf: staff said the package is designed to create an option for multiple primary structures on a single lot that fits existing neighborhood patterns while avoiding ad‑hoc lot stacking and other layouts that have caused compatibility problems.

Staff explained the cottage‑court concept as groups of one‑ to one‑and‑a‑half‑story small homes arranged around a shared open court, with parking accessed from alleys or clustered at the rear. Lindsey said the city worked with consultant Opticos to draft the cottage‑court standards and plans to apply them citywide in residential districts RN‑4 through RN‑7 rather than limiting them to transfer‑of‑development‑rights areas.

Key draft standards outlined by staff include minimum lot width and depth, limits on impervious surface, building size and height caps to preserve a small footprint, courtyard width/depth tied to unit count, and parking/access rules that keep parking out of the front courtyard. Staff said two‑sided cottage courts would start from a proposed 120‑foot minimum lot width, while a one‑sided layout could be possible on lots as narrow as about 75 feet; staff indicated a 150‑foot maximum is also under consideration.

The package also contains several clarifications and limits to the existing middle‑housing provisions in Article 4.6. Staff would clarify definitions for triplex, townhouse and multiplex; resolve conflicts between front‑setback encroachment rules and porch/stoop requirements; tighten articulation and design standards for long building walls; and remove some administrative variation options that staff found subjective or hard to enforce. Staff said Article 4.6 will be clarified so it cannot be mixed with base‑zone principal‑use standards in ways that effectively let single‑family projects cherry‑pick middle‑housing provisions.

To reduce administrative friction, staff proposed folding middle‑housing review into the regular city permitting portal so applicants file a single permit and planning review is integrated into that process rather than requiring a separate middle‑housing application and fee.

On location and compatibility, staff proposed excluding flag lots from the middle‑housing standards to prevent rear‑lot stacking that does not align with the streetscape. Appeals of staff decisions under the middle‑housing rules would go to the Design Review Board to assess block and neighborhood character. Staff also said only one middle‑housing structure would be permitted on a nonconforming lot of record under the proposed language.

Staff intends to post draft amendments online in mid‑ to late‑June for public review and bring them for a more detailed agenda review in July. "Provided everything goes okay, they would move forward to City Council in August," Lindsey said.

Planning commissioners asked questions about whether cottage courts could be placed on lots with existing single‑family homes (staff said layouts currently assume orientation around a central court and are generally meant for vacant lots), minimum lot sizes, and the possibility of letting the Design Review Board hear exceptions in certain cases. Lindsey and other staff said they would return with more detailed drafts and criteria at the next agenda review.

Ending: staff emphasized the package is intended to balance additional housing options with neighborhood compatibility and that a more detailed public packet and draft code language will be posted online before the July agenda review.