Planning commission reviews Crane site plan; commissioners flag fire-flow, labeling and stormwater questions; broader subdivision access concerns discussed

The Sumner County Planning Commission on April 15 took up a site plan for Crane/Scottie Parker PUD, a proposed development on a roughly 10-acre tract on Scotty Park Road (the former Highway 109), and held an extended discussion about a separate two-lot subdivision and recurring issues with five-acre tract divisions and private-access easements.

For the Crane site plan, planning staff described two proposed buildings: a roughly 16,000-square-foot storage-type building and a 4,800-square-foot office/ancillary building with associated parking and landscaping. Staff told the commission the developers positioned all construction outside the mapped floodplain, proposed creek buffers and submitted a full set of construction documents and drainage calculations. The presenter said the stormwater and water-quality calculations demonstrated on-site runoff reductions and that the developers provided a maintenance agreement that must be finalized and approved by the state of Tennessee.

Lisonbee Turner, a Greenwood Design representative for the project, told the commission the team had "already submitted for the septic permit with the state, so we should probably hear back within 30 days." Turner also said a notice of coverage for stormwater permitting had been submitted.

Staff and commissioners raised several technical and safety concerns during review. Commissioner Belcher said a sheet note labeled the property as "rural residential," which staff agreed should be corrected. Belcher and others flagged potential insufficiency in hydrant flow near the site; a planning member said the code-typical design flow for hydrant service is 500 gallons per minute, and commissioners emphasized that, even if a particular building type did not strictly require a hydrant under the current code, future development of adjacent tracts could create a need for a hydrant meeting full service specifications.

Other issues raised included missing labels on erosion-control and septic-area plans, unclear callouts for catchment or curb lines, clarity on where paved dustless surfaces (described in the plans as a VVST-type commercial surface) would begin and end, and the timing of required landscape installation. The project team described a multi-stage stormwater approach with a forebay to capture larger debris, a bio-retention area of planted media to treat runoff and a detention basin to release flows slowly to meet county water-quality requirements.

A commissioner moved to approve the site plan "with final accounting requirements with items A and B," and another commissioner seconded the motion. Commissioners then discussed whether the recorded votes constituted a final denial or required an additional motion; staff advised that the commission needed either a motion to deny with stated findings or a motion to defer for additional information. The transcript does not record a final, conclusive approval vote: commissioners and staff agreed that additional motion or clarification would be required to reach a formal decision.

Separately, the commission reviewed a two-lot subdivision along Watte Millman Road (Cornerstone Development LLC, represented by surveyor Zach Wilkinson). Staff described the parcel as lying in a rural-preservation district with water service from White House Utility District and said the minor subdivision process had generated questions because multiple prior farm partitions and individual easements produced a series of shared private-access strips and service easements that can be lengthy, fragmented and difficult to maintain.

Commission discussion of the Watte Millman item focused on recurring county policy questions: whether state law and the county's five-acre rule unintentionally enable piecemeal development that complicates emergency access, how flag-lot standards should constrain flag-lot length and direction, the need for clearer easement mapping and the potential for technical changes to the zoning text (for example, limits on how many times a flag drive may change direction and maximum flag-lot length). Staff noted that any changes to subdivision or zoning text would require public notice and a formal amendment process. Commissioners emphasized public-safety considerations, including the ability of emergency services and county inspectors to locate and access houses that sit far behind long private drives.

No final action to adopt new subdivision text or emergency-access rules was taken at the meeting. On the two pending applications, staff and the commission identified several items that must be corrected or clarified before formal approval could be recorded: hydrant flow verification or mitigation for the Crane site plan, corrected labeling on plan sheets, finalized maintenance and stormwater agreements and clearer plan callouts for the subdivision items. Staff said some culvert replacement work was underway on related roads and that additional engineering submittals and signatures would be required for final plats or site approvals.

The commission invited staff and legal counsel to draft options for text amendments or policy changes addressing private-access easements and flag-lot standards and recommended those be considered in a future workshop with public notice.