Olivette planners review draft tree-preservation rules for construction, raise enforcement and timing concerns

Olivette Planning and Community Development Commission members and staff met informally March 6, 2025, after the commission determined there was no quorum, to review proposed rules for tree preservation, protection and replacement tied to construction and demolition.

The discussion centered on a staff-drafted process that would require an on-site inventory of trees, assign points based on location and condition, and set replacement requirements tied to the total caliper of trees removed. Carlos (planning staff) described the proposal as a three-part system: inventory and condition assessment; protection standards for trees remaining on site; and a replacement formula based on a point system and caliper totals. The draft uses separate weightings for trees within the property's buildable area, perimeter setback areas and utility trenches, and applies a buffer of roughly 15 feet around building footprints to identify trees likely to be affected by foundations and excavations.

Why it matters: Commissioners said the proposal could change how redevelopment, additions and demolitions are handled in Olivette, and residents said the replacement math and a proposed 10-year retention requirement have practical and legal implications for homeowners and builders.

Key provisions discussed

- Inventory and points: Staff would require an inventory listing species, size (caliper/diameter) and health, then apply a points system that weights trees in the buildable area differently from trees in setback/perimeter and utility zones.

- Replacement math and minimum size: In staff examples the total caliper of removed trees would be converted into a replacement obligation; one illustrative formula mentioned by staff was that for every 10 inches of caliper removed the property owner would provide 1 inch of replacement caliper, with a proposed minimum replacement tree size of 2-inch caliper. A separate public-comment summary of an earlier draft described dividing total removed caliper by 20 to determine the count of replacement trees; commenters and staff discussed whether that divisor should be 10, 15 or 20 depending on zone and desired outcome.

- Examples and flexibility: Staff said it applied the point system to at least one house under construction and calculated a requirement to install seven new 2-inch-caliper trees, with an option to substitute a combination of fewer trees and rain gardens or raingardens in some cases. Commissioners indicated the commission could review alternative landscape plans when property owners request leniency.

- Retention/guarantee and escrow: Staff proposed tying planting guarantees to escrow or occupancy: the house escrow would not be released until required plantings were installed, and newly planted trees would carry a one-year warranty. The draft also included language that would prevent removal of certain trees for up to 10 years unless the owner showed infection, death or sought an exception; staff and commissioners debated shortening that period to three or five years.

Resident feedback and questions

- Stephanie Todd, a resident of 7 Heather Hill Lane, told the commission she read a recent draft and said the replacement math (as she understood it) could allow a builder to cut many small trees and replace them with far fewer new trees. "You could cut down 10 2-inch trees and replace them with 1 2-inch [tree]," Todd said, urging clearer differentiation so small trees are not effectively wiped out by the formula.

- Pashawn Hellman of 800 North Price asked for clearer definitions (for example, "yard area," "setback area," and "tree protection zone") and asked staff to reconcile inconsistent thresholds for what constitutes a "significant" tree (6-inch versus 8-inch diameter was discussed). Hellman suggested a city tree fund as an alternative when replacement is not feasible; staff said a fund had been considered but the city manager was uncomfortable managing one now.

Enforcement, transferability and legal risk

Commissioners raised how the city would learn if a homeowner removes required trees after escrow is released, and whether planting obligations would transfer with property sales. Staff said transferability would be recorded ("like a lien") and might require a county recording; commissioners asked staff to consult the city attorney about enforceability and potential litigation risk. Several commissioners said a lengthy retention requirement (10 years) might invite legal challenges or be impractical; others said some term is needed to prevent immediate removal after construction.

Staff directions and next steps

Staff said the draft is preliminary and will be revised and returned to the commission for formal consideration. Planned next steps discussed included adding clearer definitions; consulting the city attorney on enforceability and transfer mechanisms; reviewing how peer cities set replacement divisors and retention periods; and presenting a revised draft with explicit standards for acceptable in-lieu options, such as raingardens or alternate plantings.

No formal action or vote was taken because the commission lacked a quorum; staff and the commission agreed to continue the conversation at a future meeting.