Lynn, MA Environmental Rules: Stormwater Management (2026)

2 to construction or expansion totaling 5,000 or more square feet of combined gross floor area on a lot, to a renovation or change of use adding ten or more parking spaces or relocating the building or site entrance, to any new or replacement building with a drive-through, to residential construction reaching three or more units on one lot, and to ground-mounted solar energy systems. 3 assigns review to a seven-member Site Plan Review Committee drawing department heads or designees from Community Development, EDIC, the Housing Authority and Neighborhood Development, Inspectional Services, Planning, Public Works, and the Water and Sewer Commission.

5, that committee weighs 'the adequacy of stormwater management systems' as one of nine listed review factors, alongside protection of natural and historic site features, impacts to adjoining properties, safe pedestrian, bicycle and vehicular access, fire and utility access, parking and loading adequacy, and waste removal. 9 imposes a narrower, floodplain-specific drainage rule: within Zones AO and AH, adequate drainage paths must be provided around structures on slopes to guide floodwaters around and away from them. The committee may adopt and amend its own rules and regulations covering design standards, filing them with the City Clerk.