Plymouth planning board votes to place Tenney Mountain overlay zoning amendment before voters

Plymouth Planning Board members voted on Jan. 16 to send a proposed Tenney Mountain Overlay District zoning amendment to the voters after a lengthy public hearing that focused on water and sewer capacity, density and environmental constraints.

The board advanced the TMOD proposal with small administrative edits and instructions to staff and the attorney to clarify measurement of building height consistent with the town—s zoning ordinance. The motion to place the proposal on the ballot carried following a show-of-hands vote at the end of the meeting.

The proposal would create a planned-unit-development overlay for the Tenney Mountain area and includes provisions that allow a higher-density village core within larger PUD tracts while keeping an overall density cap for the full PUD tract. Planning staff explained the draft rewords references from "PUD master plan" to "PUD plan" and refines how density in the village core may exceed overall PUD density up to a stated maximum.

The public hearing produced sustained comment from residents and local officials. A written letter from long-time water-and-sewer commissioner Judy DeLeo and co-signer Eric Julio questioned the feasibility of large-scale development without a reliable new water source and raised concerns about wastewater capacity, fire suppression and school impacts. DeLeo—s letter said Plymouth Village Water & Sewer District—s existing wastewater facility has a design limit and that developer estimates for full build-out would exceed current capacity.

Local water-and-sewer commissioner Chris Woods told the board the sanitary system requires significant investment to maintain current service; he said the district—s current capital plan totals tens of millions of dollars, and that expansion to serve a large new development would be a major undertaking.

Several speakers, including developer representatives and their consultants, said the proposed TMOD is intended to provide a regulatory framework so a developer can propose a coordinated plan for mixed uses, higher-density village cores, and infrastructure investments. A consultant representing the development team said hydrology and wetlands mapping have been performed and that the team is discussing water and sewer options with the district and the town.

Board members debated how to reference the town—s existing Section 402 height-measurement standards in the TMOD language. The board directed staff to incorporate clarifying language from Section 402 into the TMOD text (for example provisions about how to measure average finished grade and exceptions for non-occupied superstructures) so the overlay would integrate cleanly with the rest of the zoning ordinance.

Board members repeatedly noted that advancing the zoning amendment to the ballot does not approve any specific development: individual PUD plans, site plans, or utility expansions would require subsequent applications, technical studies and separate approvals. Multiple board members said those later reviews would have to demonstrate feasible water and wastewater solutions, traffic management and wetland protections before any large-scale construction could proceed.

The vote sends the TMOD amendments, with the agreed administrative clarifications, to the voters in a future election. The board also asked staff to prepare community outreach materials explaining the changes and to plan public engagement events in the weeks ahead.

Notes: the hearing included extended public comment and technical discussion; board members asked staff and the town attorney to refine the draft language before it is printed for the warrant and voter materials. No specific infrastructure funding mechanism (for example a TIF or project-specific assessment) was adopted by the board at this meeting.