The Warwick Castle dates from 1853 in an area developed by Thomas Pocock. Before Westbourne Park Road was renamed, it was called Cornwall Road. Portobello Road started as Portobello Lane with this part in particular being called All Saints Terrace before 1870. Florence Gladstone in the book ’Notting Hill in Bygone Days’ wrote: “The Warwick Castle at the corner of Cornwall Road is the successor of a small inn of the same name; and opposite the inn, across Portobello Lane, was a cattle pond at the edge of a field.”
The builder of the pub was Paul Felthouse from Warwickshire who made himself the first licensee. After a year, Felthouse sold onto the brewer Sir Henry Meaux.
The pub was renamed ’The Castle’ in 2002.