All Hallows was badly damaged in the
Great Fire of 1666. The parishioners attempted to patch it up, and had the walls rendered with straw and lime in an attempt to stop any further decay. at a cost of £8,058 15s. 6d (). The exterior was plain. In the 1830s
George Godwin noted that the church was so hemmed in by other buildings, that "it is with difficulty discovered, even when looked for; it has in consequence been called 'the invisible church'." The stone tower stood at the west end of the south wall. As seen in the faithful rebuilding in Twickenham today, the tower has three storeys. The lowest storey has with a small porch formed by Corinthian columns with entablature and pediment, giving access to the body of the church through a vestibule; the second storey: round-headed windows; the third: square openings with louvres, each surmounted by a plain
cornice (ledge). A cornice and parapet complete. It reaches, as then, about in height. During the
Napoleonic Wars, the roof space was used as a storeroom for ammunition by a volunteer corps. ==John Wesley==