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Planning board requests stronger stormwater, lot-line and sidewalk details for White Plains Road subdivision
Summary
At a work session the Planning Board asked Hudson Engineering and the applicant for written responses on lot-line encroachments, stormwater inlet capacity and discharge, consideration of upgrading stormwater controls to a 50‑year design, and the feasibility of a sidewalk connection for a proposed two‑lot subdivision on Old White Plains Road.
At a work session on April 15 the Greenburgh Planning Board reviewed a proposed two‑lot subdivision at 4635 Old White Plains Road and asked the applicant for additional technical responses on stormwater, lot lines and pedestrian connections.
Shay Graham of Hudson Engineering presented the plan: a two‑lot subdivision in the CV district with a proposed two‑story single‑family dwelling, associated stormwater practice sized for a 25‑year storm (applicant said they could explore 50‑year sizing), a sewer main extension, approximately 12,000 square feet of disturbance across the site and about 423 cubic yards of excavation, and a pair of variances (lot width reported as 99.4 feet versus the 100‑foot standard and a small front-yard variance reported as preexisting). The building inspector’s office indicated no comment on the plans and staff requested confirmation whether some variances remain necessary given existing, unchanged conditions.
Board members raised several technical concerns: a visible off‑street parking area and staircase that may encroach into the public right of way and needs applicant clarification; capacity and discharge point of an existing drain inlet on the site; whether stormwater controls could be upgraded to 50‑year storm performance to protect the adjacent park preserve downhill of the lot; and whether a sidewalk connection to existing sidewalks on the opposite side of Dunning Street is feasible. Staff asked the applicant to provide written responses to these points and to return for another work session once those materials are submitted.
Shay Graham said the team will prepare written responses and examine options for additional cul‑tech units or stormwater upgrades. The board did not vote on the application at this meeting and will schedule follow-up review after receiving the requested documentation.
