Timnath council updates land‑use code: solar standards, ADUs, lighting, design details and natural‑medicine rules

The Timnath Town Council voted unanimously among members present to adopt a set of land‑use code amendments that add new standards and clarifications for development approvals, commercial solar facilities, accessory dwelling units (ADUs), outdoor lighting, residential design detail and block diversity, and restrictions on licensed natural‑medicine operations.

Staff described multiple discrete changes grouped in a single ordinance. On approved‑plan expirations, the proposed code sets multi‑year expiration dates for many discretionary approvals (two years for conditional uses and site plans, two years for sketch and preliminary plats, while final plats and certain other items remain vested rights). Planning staff said the changes align Timnath with peer municipalities and encourage timely project completion.

The amendments create commercial solar‑facility standards limited to agricultural zoning (per staff recommendation). Key provisions include a 50‑foot setback from property lines, a 100‑foot setback from residentially zoned land, a maximum panel height of 20 feet at tilt, 20‑foot landscape buffers with perimeter fencing, regular monitoring and maintenance records, reporting of energy production, and a decommissioning plan and financial surety. Staff said facilities that produce no electricity for 12 months would be deemed abandoned and required to be decommissioned within six months.

On accessory dwellings, staff revised local standards to comply with House Bill 24‑1152 (effective June 20, 2025). The ordinance removes an owner‑occupancy requirement, prevents mandatory new parking spaces for ADUs, and scales ADU maximum floor area by lot size: 850 square feet for lots 10,000 sq. ft. or smaller; 1,000 sq. ft. for lots larger than 10,000 sq. ft. Staff said these changes are intended to allow modest infill housing while preserving other site standards such as setbacks and heights.

Outdoor‑lighting updates set limits measured in foot‑candles and lumens, restrict color temperature to 3,000 Kelvin or lower, and add curfews and smart‑control/dimming requirements (motion sensors for unsheltered fixtures). The Dark Sky Colorado chairman, John Garvey of 5034 Leopold Lane, urged the council to tighten exemptions for agricultural equipment and public‑right‑of‑way lighting and to clarify language to avoid unintended loopholes: “I respectfully request that you revisit some of the exemptions,” he said during public comment.

The ordinance also includes residential design‑detail and block‑diversity standards. Staff recommended limiting garage‑door frontage on street‑facing facades to 40 percent; planning commission recommended 50 percent. The council retained the 50 percent threshold as written. The block‑diversity rules formalize requirements that avoid repeating identical home models or colors on adjacent lots or across short blocks.

Finally, the package addresses licensed natural‑medicine facilities (healing centers and cultivation centers) by imposing time, place and manner restrictions. Staff proposed 1,000‑foot setbacks from schools, child‑care facilities and residential property lines and limited healing centers to regional commercial zones and cultivation to industrial zones. Staff mapped coverage and reported that including unincorporated Larimer County parcels in the Growth Management Area reduced available acreage dramatically — staff reported roughly 0.02% of land available for cultivation under the 1,000‑foot scenario when county parcels were included and about 1.5% when the measurement applied only to land inside town limits. Council adopted a friendly amendment to strike the clause limiting the residential setback measure to town jurisdictional boundaries so the setback applies consistently to residential property whether in town or in mapped county GMA parcels.

Councilors thanked staff for the work and noted the ordinance package can be revisited as circumstances or market conditions change; the motion to adopt passed unanimously among the three members present.