Marion County advances land‑development code changes after contentious debate over tree‑credit math

Marion County commissioners on a summer afternoon approved a set of amendments to the county’s Land Development Code that revise definitions and landscape standards, but they stopped short of finalizing rules on shade‑tree credits after a detailed staff presentation and public comment. The board voted to approve the package with edits and send Division 7 (tree protection and replacement) back to the Land Development Review Commission and the board for further work on July 8.

The hearing centered on how the county would calculate mitigation and preservation credits when existing trees are retained on development sites. Jim Coulard, Marion County Parks and Recreation director and the county’s landscape architect, told the board the proposed code removes a simple 100‑inches‑per‑acre replacement baseline in favor of a tiered replacement structure and separate preservation and shade‑tree credit tables. He warned that, as drafted, the preservation and shade‑tree credits could in some cases exceed replacement obligations for small or irregular sites, ‘‘and that’s where this code starts going awry’’ (Jim Coulard).

Public commenters and several commissioners pressed that the credit tables, when applied to sample projects, produced results that were ‘‘backwards’’ or inconsistent with the policy goal of discouraging clear‑cutting. In one example staff showed, the math would have given a small gas‑station parcel hundreds of credited inches, effectively eliminating required replacement plantings. ‘‘This isn’t gonna work,’’ a commissioner said after the demonstration, urging staff to rework the formulas and compare how nearby counties handle incentives.

Several members of the public urged caution on the proposed five‑year lookback tied to an agricultural rebuttal clause. Staff said the lookback functions differently in separate subsections: a two‑year prohibition prevents applicants who removed trees from immediately seeking urban land‑use applications, while a five‑year lookback is used as a reference window when aerial photos and documentation are examined to calculate canopy for mitigation. David Tillman, a local engineer, and others warned that aerial photography cannot reliably distinguish species or individual trees in dense stands and asked for clearer rules on evidence and appeals.

Board members emphasized consistent goals: value and preserve large specimen trees, avoid rules that incentivize wholesale clearing, and keep mandatory buffer and yard tree minimums in place. Commissioners directed staff to clarify where shade‑tree credits may be applied (for example, buffers versus yard trees or improved open space), tighten the formulas, and return the revisions through LDRC for another workshop and a public hearing. The board set a date‑certain return on July 8 at 9 a.m.

The motion to approve the current package with the changes on record passed by a majority vote. The board also approved, unanimously, a continuance of Division 7 to the July 8 date.

Next steps: staff will refine the shade‑tree credit and replacement calculations, prepare cross‑jurisdiction comparisons and project examples requested by commissioners and interested developers, and bring the revised Division 7 back to LDRC and the board for additional review.

(Reporting at this hearing was based on the staff presentation and public testimony recorded during the Land Development Code public hearing.)