The station has one four-car-long high-level side platform with two waiting shelters to the east of the track.

[3]: 25  The platform is situated between the grade crossings of Glenbrook Road to the south and Crescent Street to the north.

[5] The station is owned and operated by the Connecticut Department of Transportation (ConnDOT), with some responsibilities delegated to Metro-North.

[5] Glenbrook was formerly served by two stations – one on the New York–New Haven mainline, and one on the New Canaan Branch.

[7] In December 2010, Connecticut Governor M. Jodi Rell announced that the state Bonding Commission was expected to approve $950,000 in financing for a canopy.