Aldborough House

Aldborough House is a large Georgian mansion on Portland Row featuring a prominent granite facade facing the street and red brick walls on its other sides. The structure displays the tall, rectangular proportions typical of late 18th century Dublin architecture, with multiple stories arranged around interior spaces.

Construction began in 1796 under the second Earl of Aldborough, making it one of the last major Georgian mansions built in Dublin. After the Earl's death, the building passed through several institutional uses before falling into disrepair.

The building once housed a private theatre built specifically for performances, reflecting the refined cultural life of Dublin's wealthy elite during the late 18th century. This space shows how the city's performing arts were shaped by the tastes and patronage of the aristocracy.

The building is protected as a historic structure and is not currently open to visitors, as it requires extensive restoration work. Its location on Portland Row allows views of the exterior architecture from the public pavement.

After its time as the Earl's residence, the mansion was converted into a Feinaglian school, then military barracks, and later a post office branch. This shifting history of uses reveals how the building's role in the city transformed entirely over the decades.