Case No. TB 21-06/PB 21-04 Regeneron, 777 Old Saw Mill River Road (P.O. Tarrytown, N.Y.) – Amended Site Plan (Town Board Referral), Town Board Tree Removal Permit, Planning Board Steep Slope Permit & Wetland/Watercourse Permit
A work session to discuss an amended site plan (Town Board approval – referral to Planning Board), Town Board tree removal permit, Planning Board steep slope permit and wetland/watercourse permit application involving the proposed construction of a 2-story, 207,940 sq. ft. Research & Development (R&D) building and structured parking facility within an existing R&D Campus, with related improvements. The proposal includes the demolition of existing parking areas and other site features. The location of the project was the subject of prior amended site plan (TB 14-05) and related approvals (PB 14-16) for a differently configured building and parking layout, which was never constructed. The Applicant no longer seeks to construct per the prior approvals, based on its updated needs for the site. The applicant now proposes approximately 29,064 sq. ft. of disturbance to 15-25% slopes (STEEP SLOPES), approximately 9,764 sq. f.t of disturbance to 25-35% slopes (VERY STEEP SLOPES), and approximately 3,137 sq. ft. of disturbance to 35%+ slopes (EXCESSIVELY STEEP SLOPES). The applicant proposes approximately 87,987 sq. ft. of wetland/watercourse buffer area disturbance within the 957,355 sq. ft. of wetland, watercourse, and adjacent buffer area on the site. The applicant proposes a total disturbance area of 500,940 sq. ft. (11.55 acres) as part of the project. The applicant proposes the removal of 152 regulated trees, requiring a tree removal permit from the Town Board, and has prepared a preliminary landscaping plan identifying replacement trees, shrubs, and groundcovers. The property consists of approximately 2,859,367 sq. ft. (65.64 acres) and is situated along the south side of Old Saw Mill River Road, approximately 500 feet west of the intersection of Saw Mill River Road and Old Saw Mill River Road. The property is located in the OB Office Building Zoning District and is designated on the tax map of the Town of Greenburgh as Parcel ID: 7.71-6-1..1. This matter is being reviewed in conjunction with Case No. TB 21-10/PB 21-09, described below, which would provide a temporary staging and parking area on adjacent property during the construction of this project.