gatehouse

[ geyt-hous ]

/ ˈgeɪtˌhaʊs /

a house at or over a gate, used as a gatekeeper's quarters, fortification, etc.

a house or structure at the gate of a dam, reservoir, etc., with equipment or controls for regulating the flow of water.

Origin of gatehouse

Middle English word dating back to 1350–1400; see origin at gate¹, house

"We ought to find water enough across the sands to Gatehouse," he said.

Johnstone of the Border |Harold Bindloss
The rectory was often surrounded by a moat, with an entrance protected by a gatehouse.

English Villages |P. H. Ditchfield
The change that had come upon the lives of the two ladies in the Gatehouse was, however, scarcely apparent to their little world.

At His Gates, Vol. 3(of 3) |Margaret Oliphant
And yet, yonder in the Gatehouse when he lay so sick he set the lock against thine own—ah, dost remember now?

Ayesha |H. Rider Haggard

Under the gatehouse, which stands on the reservoir wall, is a well or distributing chamber.

Montreal 1535-1914, Volume II (of 2) |William Henry Atherton

gatehouse

/ (ˈɡeɪtˌhaʊs) /

a building above or beside an entrance gate to a city, university, etc, often housing a porter or guard, or (formerly) used as a fortification

a small house at the entrance to the grounds of a country mansion

a structure that houses the controls operating lock gates or dam sluices