7.7.2026 Technical Advisory Committee

The City of Portsmouth, New Hampshire Technical Advisory Committee held a meeting on July 7, 2026, focusing on site plan reviews and subdivision approvals. Key procurement-related discussions included the preliminary and final subdivision approval for 20 Central Avenue, involving the division of one lot into three single-family dwelling lots with associated site improvements, stormwater management via rain gardens, and utility connections. The committee reviewed drainage easements, foundation details, and landscaping buffers, with public concerns raised about drainage issues, traffic, and neighborhood impact. Another agenda item involved amended site plan approval for 124 Heritage Avenue, proposing minor site improvements such as a garden, ADA ramp, parking lot restriping, stormwater modifications, and lighting upgrades, with emphasis on stormwater detention and compliance with wetland permits. Lastly, Colonial Properties LLC requested a parking conditional use permit for 833 Islington Street to support a multi-use property including a grab-and-go dining area, with discussions centered on parking compliance, property access rights involving state-owned Frenchman's Lane, and the need for further parking demand analysis. Motions were made to postpone certain items and to continue review of parking demand and drainage studies before planning board consideration.