The City of White Plains Planning Board approved two eligible‑facilities requests from AT&T to retrofit existing cellular equipment at 400 Hamilton Avenue and at a Crown Castle tower serving West Harrison (listed as 1402 Old Orchard Street/Crown Castle Tower), subject to standard Department of Public Works conditions including verification of Federal Communications Commission compliance and structural/wind‑load review.

Marty McGee of Arrowsmith Development, representing AT&T, explained both applications as equipment swaps rather than new development. At 400 Hamilton Avenue, he said the work will reduce the number of radio remote heads (RRHs) from 15 to 12 and keep a total of nine antennas on the structure; three larger antennas (about 59 inches) will be replaced with smaller, 36‑inch antennas for 5G service. At the Crown Castle tower (1402 Old Orchard/Old Orchard Street), McGee said existing RRHs would be reduced from 12 to nine and three older 52‑inch Commscope antennas would be replaced by smaller Ericsson antennas (about 18 inches smaller).

Board members and staff reiterated the usual conditions on eligible facility approvals: Department of Public Works must verify that radio‑frequency emissions comply with FCC regulations and perform pre‑ and post‑installation testing; DPW will also review structural and wind‑load calculations for the tower and any related cabinets. The board approved both applications by voice vote with the listed conditions.

McGee said the equipment swaps mostly occur within existing leased equipment areas and that the changes are intended to support the carrier's 5G deployment; he characterized the swaps as largely invisible to the public at tower heights of roughly 120 feet.