The school was constructed for the Foundling Hospital 1932–35 by the architect John Mortimer Sheppard. Set in extensive grounds, it is designed in a Neo-Georgian (Neoclassical) style, laid out as a symmetrical group of school buildings linked by colonnades of stone columns and organised around a courtyard. At the centre of the site, facing the entrance avenue, is the school chapel, topped with a tall cupola. The chapel is fronted by a large stone portico; four Doric columns support a large pediment which is emblazoned with the school coat of arms, consisting of an escutcheon depicting a baby and the moon and stars, and topped by crest of a lamb. It is flanked by a pair female supporters, the allegorical figures of Britannia and the eight-breasted Artemis of Ephesus. The motto is ""Help"". This heraldic device is similar to the arms of the original Foundling Hospital designed by William Hogarth.