Planning committee forwards Great Seneca Life Sciences overlay zoning change to full council

The Montgomery County Planning, Housing, and Parks Committee on Jan. 27 advanced Zoning Text Amendment ZTA 24-03, which would create a Great Seneca Life Sciences overlay zone designed to support higher-density life-sciences development in exchange for public benefits.

"ZTA 24 0 3 will establish a new Great Seneca Life Sciences overlay zone," Council staff member Nadine told the committee, summarizing key provisions: optional method development above 0.5 FAR, a tiered incentive-density credit system (0.25 to 1 FAR depending on benefits), removal of parking minimums, and a prohibition on new surface vehicle parking between a building and a public street.

Why it matters: council staff and the Planning Board said the overlay implements the Great Seneca master plan and could increase housing and life-science space while steering redevelopment away from surface parking. Nadine said the county Office of Legislative Oversight provided a favorable racial equity/social-justice impact statement because the ZTA could increase affordable housing supply, and the Planning Board conducted a more detailed climate assessment that found greenhouse-gas emissions could rise at buildout but that several incentivized public benefits would help reduce emissions.

The committee considered multiple requested amendments from developers and stakeholders. Trammell Crow Company asked that incentive density apply only when a project exceeds its mapped FAR; council staff recommended against that change to retain the overlay's threshold consistency with other zones. Planning staff recommended adding the word "new" to clarify that only new surface parking between a building and a street would be prohibited, a technical amendment the committee accepted.

A central contested issue involved whether Adventist Hospital should be exempt from BLT (public-benefit) requirements in the overlay. Planning staff cautioned that the incentive modeling assumed BLT purchases and recommended against exempting hospitals in the overlay. Council staff and hospital representatives urged retaining the existing exemption for hospitals and suggested the committee could revisit exemption policy during the broader incentive-zoning update.

"Our recommendation would be to not exempt the hospitals," a planning staff member said, noting the modeling assumptions for the incentive tiers. Jessica McBarry, identified for the record, explained the policy intent to lower the LSC zone BLT rate from 50% to 7.5% to align with CR zone practice: "Our overall goal was to bring down that percent ... to 7.5% rather than 50," she said.

Committee members debated sequencing and policy trade-offs. The chair said the modeling for the overlay used the 7.5% BLT assumption and that, on balance, the committee would keep the ZTA as introduced rather than insert a hospital exemption now; members said the full council would have an opportunity to revisit the issue. The committee recorded its positions on the hospital exemption as 2-to-1 in the packet, but the overall committee moved the ZTA forward to the full council with committee support.

The committee also approved several technical and clarifying amendments without objection, including renumbering and cross-reference corrections and an addendum clarifying that projects must use the mapped commercial or residential FAR (one or the other) before receiving additional incentive density.

Action and next steps: the committee agreed to forward ZTA 24-03 to the full Montgomery County Council with committee support (recorded as 3-0 in the committee packet). The full council will consider the amendment, and the chair said stakeholders — including Adventist Hospital — would have another opportunity to present arguments at that time.

Documents and references cited during the session included the Planning Board review, the Office of Legislative Oversight racial equity/social-justice statement, and staff reports on amendments and the climate assessment. The committee adjourned after brief closing remarks about the economic importance of the life-sciences sector to Montgomery County.