It was licensed for marriages from 1722 to 1754 and between 1930 and its deconsecration: Margaret Bentinck (daughter of the 2nd Earl, and Duchess of Portland) married here.

He became Master Chef to the Duke of Somerset, Charles Seymour, presenting sumptuous banquets for his guests.

[citation needed] St Peter's served the congregation of All Souls Church, Langham Place, from 1940 to 1951 whilst the latter was having war damage repaired, and then became a chapel of ease to it.

The pediment once held a carved coat of arms of a member of the De Vere family; this was removed in 1832, when the building was renovated and named St Peter's.

Victorian alterations included the installation of stained-glass windows by Edward Burne-Jones, made by Morris & Co., which remain in place.