Commission debates narrower block lengths, stricter variances and cul-de-sac ban in subdivision code update

The commission spent an extended portion of the meeting reviewing proposed updates to Livingston's subdivision regulations derived from the city's recently adopted growth policy. Planning Director Jen Severson presented the staff'recommended changes and said the package is being phased: technical conforming changes were addressed in a prior round, this meeting covered growth-policy recommendations, and a later meeting will address "community experience" items.

Severson said key proposed changes include reducing the maximum block length from 1,600 feet to 1,000 feet, increasing minimum block width to roughly 300 feet where feasible (to allow two tiers of lots with alleys), prohibiting cul-de-sacs and permanent T-turnarounds except where a variance is approved, and strengthening variance criteria so applicants must demonstrate unique physical conditions and the least-possible impacted area.

"The parcel will need to have unique physical conditions or limitations that can only be addressed by variance," Severson said, describing proposed language that would place the burden of proof for a variance on the applicant and limit an approved variance's geographic scope to the minimum necessary.

Commissioners and staff discussed multiple follow-up policy choices. Commissioner Lyons pressed to add an explicit sidewalk requirement in the typical street-section table and argued for removing ambiguous phrasing such as "unless impractical" when specifying block lengths and design standards. Severson agreed the sidewalk language could be clarified and noted some detail will come in the public-works design standard conformance step.

Members debated whether riparian and wetland setbacks should be adopted in the zoning code or subdivision regulations. Staff said those are more commonly handled in the zoning section or an overlay, but noted that subdivision review must enforce applicable zoning setbacks at the lot level. Commissioners also raised tree-preservation language and asked staff to explore stronger protections for mature trees and locally significant specimens.

Commissioner Kale and others urged clarity on where street design standards will live (public works standards vs. subdivision code or appendix) and whether cul-de-sac geometry and turnaround dimensions should be in the code or in engineer-facing appendices. Severson said table 1 and typical cross-sections may be moved to an appendix to make them easier for developers and engineers to find and that more community-experience language will come back in the next meeting.

Public comment during the subdivision discussion urged the commission to consult with local historians and tribal historians on cultural resources and historic trail alignments that could be affected by new plats. Staff confirmed some items will come back to the commission in February and March in successive rounds for community input and final conformance.

No formal vote was taken on new subdivision language at the meeting; commissioners requested staff return with revised drafts that incorporate sidewalk language, improved variance text, clarification on floodplain and riparian treatment, and possible tree-preservation thresholds.