City Council approves 1855 South Flatiron site review and 9‑year vesting ordinance with optional further parking reduction

Boulder — The Boulder City Council on May 1 unanimously approved a site review for the redevelopment of 1855 South Flatiron Court and adopted Ordinance 86‑85 granting a nine‑year vesting period for the project’s site‑specific development plan.

The project, proposed for the Flatiron Industrial Business Park east of Central Avenue, calls for three three‑story research-and‑development buildings with ground‑floor commercial space, consolidated podium and perimeter parking and a central courtyard. Staff recommended approval, and council voted 9‑0 in favor of the site review and the ordinance to extend vested rights from three years to nine years.

Staff and the applicant said the design responds to site constraints including a large drainage easement, adjacent BNSF tracks and river corridor, and floodplain impacts on the eastern portion of the property. Allison Blaine, senior planner and case manager, summarized staff’s analysis and said the proposed project meets the site review criteria and East Boulder subcommunity plan objectives.

“The proposal includes a ground floor commercial space to serve the entire business park, and the proposed multi‑use path connection to the north is in keeping with the area plan’s destination workplace place type,” Blaine said during the staff presentation.

What council approved

- Site review approval for a redevelopment that would build three research‑and‑development buildings, maintain two existing vehicle access points and add an on‑site multi‑use path connection to the South Boulder Creek trail. The project includes terrace and architectural features to help break up large floor plates and create pedestrian interest. - A requested height modification for two of the buildings (up to 50 feet) related to floodproofing measures and a conditional 5‑foot allowance for the third building. - A parking reduction from the required 519 spaces to 398 spaces (a 23% reduction), supported by a Transportation Demand Management plan that includes telework, eco passes and car share strategies. The design includes 66 EV spaces and 44 bike parking spaces. - Adoption of Ordinance 86‑85, granting a nine‑year vesting period for the approved site‑specific development plan (vote: 9‑0).

Council amendment on parking

During final motions, council amended the staff recommendation to allow the applicant to consider an additional parking reduction on the east edge of the site. The amendment authorizes the applicant to pursue up to a 33% total parking reduction (from the base requirement) by converting some east‑edge surface spaces to landscaping or circulation, subject to staff approval at technical document review. Council approved that amendment before adopting the site review approval and ordinance.

Applicant, design and mitigation

The applicant team presented renderings and described design moves made to respond to the constrained site: a perimeter ring road to meet emergency access needs, podium parking beneath portions of the buildings, a central courtyard for drop‑off and public activation, rain gardens for stormwater treatment and significant new tree planting to increase on‑site habitat and screening.

Salil Payapalli of Biomood Realty emphasized the project’s role in supporting East Boulder’s innovation economy and cited recent nearby investments, including a new market hall and a café project, as part of a broader neighborhood transformation.

Public comment and concerns

Members of the public and one organizational representative spoke during the public hearing. Jonathan Singer, senior director of policy programs at the Boulder Chamber, urged council to approve the project, arguing it would help retain research‑and‑development employers in Boulder. One public speaker, Lynn Siegel, opposed the scale and parking reductions and questioned whether future housing and neighborhood benefits would follow; staff and the applicant responded that the site’s industrial zoning and physical constraints limit residential and typical retail activation and that the East Boulder plan is aspirational but the proposal meets the site review criteria.

Votes and ordinance

- Site review approval (case LUR2024‑000036): motion passed 9‑0 (Adams — yes; Benjamin — yes; Brockett — yes; Mayor Pro Tem Fulcrates — yes; Marquis — yes; Shuhart — yes; Speer — yes; Wallach — yes; Weiner — yes). - Ordinance 86‑85 (9‑year vesting period for 1855 South Flatiron): adopted 9‑0.

What happens next

The project was approved with conditions. Staff will work through technical document review and the applicant must satisfy conditions listed in the staff packet; the council’s amendment allows staff discretion to approve an additional parking reduction at the technical‑document stage if the applicant demonstrates feasibility and continues to meet circulation, safety and operational requirements.

Context and significance

The site sits in the East Boulder subcommunity plan area, a designated area of change where the city has encouraged evolving industrial, office and mixed uses with improved first‑ and last‑mile connections. The project’s combination of R&D space and on‑site amenities was presented as consistent with that vision. Council members repeatedly praised the project’s design details — especially stormwater treatment, active courtyard space and bike infrastructure — while also probing durability of ground‑floor activation and long‑term parking demand.

Council directed staff to prepare the technical‑document conditions and to continue working with the applicant during final design and permitting.