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Vienna Planning Commission hears full public comment on Green Hedges's proposed CUP amendment; commissioners seek more data

Town of Vienna Planning Commission · January 14, 2026
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Summary

Planning commissioners reviewed Green Hedges School's proposal to increase enrollment to 225 and staff to 50 and to seek multiple site-plan modifications (lot coverage, buffers, parking, stormwater). Staff and applicant presented technical materials including a continuous sound study; commissioners and dozens of residents raised concerns about noise, buffering, stormwater and traffic. No final vote; the item is held for two weeks for supplemental materials.

The Vienna Planning Commission on Jan. 14 held an extended session on Green Hedges School's request to amend its conditional use permit and to seek site-plan modifications, drawing a large in-person turnout and split public comment.

Staff summarized two linked applications: a recommendation to the Board of Zoning Appeals to raise the school's maximum enrollment from 190 to 225 and full-time employees from 42 to 50, and a separate recommendation to Town Council to modify multiple site-plan requirements (including lot coverage, sidewalks, loading, parking circulation, buffer widths and stormwater provisions). Lindsay Clark, the town's principal planner, told commissioners that staff considers the requests "separate but interrelated" and recommended any approvals be conditioned so the CUP and site modifications together ensure compatibility with surrounding residential neighborhoods.

The applicant team, represented by counsel Sarah Mariska and Head of School Peter Barrett, presented a campus plan that would replace older classroom buildings with a new academic building (about 6,445 sq ft of added space to Kilmer Hall, yielding an updated total of about 22,780 sq ft as corrected by the applicant), a larger multipurpose room, reconfigured parking and circulation to increase stacking capacity, relocated athletic fields, and supplemental landscaping and a six-foot wooden fence intended to improve screening. The plan is phased: no enrollment increases during Phase 1 construction; after occupancy the school would add 10 students per year and two employees per year until reaching the requested caps.

The applicant presented a continuous sound-monitoring study (meter logged every 30 seconds over several days, ~17,000 data points) and said the meter was positioned on school property roughly 20 feet from the property line. Consultant Jessica Edwards Brandt said continuous sound levels showed frequent swings and peaks (the study recorded ranges from roughly 40 to 80 decibels at the monitor location) and argued that dense vegetation and fencing are industry-standard mitigation measures. She also noted Vienna lacks numeric decibel thresholds in its town code and that staff used Fairfax County's guidance for comparison.

During commissioner questioning staff and applicants discussed critical tradeoffs: stormwater management needs that drove underground detention under parking (with a consequent request to deviate from interior parking-lot island requirements), which in turn constrains buffer widths in places; the importance of a mid-block pedestrian crosswalk on Nutley Street; whether the amended CUP should supersede prior CUP conditions (applicant agreed); and a request by staff and commissioners for clearer operational limits (for example, defined loading hours and criteria for special-event operations) and for enforceable performance reporting tied to any CUP condition.

The public comment period ran nearly an hour and a half with many neighbors opposing the increases and several community members supporting the plan. Opponents emphasized sustained and impulse noise reaching 60'80 dB in the school's own data, increased traffic and parking pressure on neighborhood streets, mature-tree loss related to an increased impervious area (proposed lot coverage grows from ~31.11% to 47.8%), and continued flooding/runoff concerns. Supporters said modernizing old classrooms and improving on-site facilities are important for educational quality and the school's long-term viability; several parents and alumni urged the commission to allow the school to proceed with conditions to protect neighbors.

Commissioners and staff decided not to make final recommendations at the meeting. Staff said it would compile materials (including a consolidated copy of the existing CUP, requested supplemental studies, and a list of outstanding CUP conditions) and asked the public and applicant to submit additional materials quickly so they could be included in the packet. The commission expects to revisit the item at its next meeting in two weeks. If the commission moves forward then the BZA hearing on the CUP amendment is scheduled for Feb. 18 and, if necessary, Town Council would consider the site-plan modifications in March.