24, Old Gloucester Street

24 Old Gloucester Street is a former girls' infants school, now a private residence, built between 1863 and 1864 by architect SS Teulon. The building is constructed of stock brick with yellow brick and stone dressings, featuring a slate roof and designed in an early Gothic style. It stands three storeys tall, facing Old Gloucester Street and extending to Gage Street, with an irregular layout that follows the street line.

The ground storey includes a door at the north end and lancet windows with prominent continuous stone mullions. The first-floor windows are adorned with pointed brick relieving arches, while the top storey features tall arched windows, some exhibiting geometrical tracery. The gables and external chimney breasts have been slightly simplified over time. The entrance, located at the north end, has a fanlight set under a pointed arch.

Although the interior has been altered, the essential teaching spaces remain intact. There is an angle with a biblical quotation and the date 1863. This building is a characteristic example of Teulon's work and forms a significant group with the nearby No. 25 boys' school and St George the Martyr church in Queen Square, which was also altered by Teulon.