Decorating Hanover Terrace

Hanover Terrace was designed by John Nash and constructed in 1822-23, making it one of the earlier terraces in the Regent's Park scheme. Named after the royal House of Hanover, the terrace occupies a prominent position on the western side of the Outer Circle, facing across the park toward the boating lake. The terrace comprises 20 houses arranged in a composition of understated elegance: a central pediment supported by Doric pilasters flanked by symmetrical wings terminating in projecting end bays. Unlike the overtly theatrical Cumberland and Chester Terraces, Hanover Terrace achieves its effect through proportion and restraint rather than monumental scale. The original residents included members of the minor aristocracy, senior military officers, and prosperous professionals — a social mix that reflected the terrace's position between the grandest addresses of the Inner Circle and the more modest housing of the surrounding streets. The novelist Anthony Trollope's mother lived on Hanover Terrace, and the composer Ralph Vaughan Williams resided at number 10 from 1953 until his death in 1958. During the twentieth century, several houses were occupied by diplomatic missions, a use that reflected both the terrace's prestige and its proximity to the Islamic Cultural Centre in Regent's Park. The terrace was extensively restored in the 1990s under Crown Estate direction, with careful attention to the replication of original decorative details that had been lost through earlier insensitive repairs. Today, Hanover Terrace remains predominantly residential, its domestic scale and park-facing aspect making it one of the most sought-after addresses in the Regent's Park estate.

The decoration of Hanover Terrace follows the Crown Estate's standard specification for Nash terraces, with Keim mineral silicate paint applied to all stuccoed surfaces in the approved cream palette. The terrace's more domestic scale makes scaffold access somewhat less challenging than on the grander terraces, but the round-headed ground-floor windows introduce additional complexity, their curved reveals requiring careful cutting-in by experienced decorators. The Roman Cement render demands the same careful preparation as elsewhere on the estate: testing for hollowness with a wooden mallet, cutting out and replacing defective areas with compatible NHL 5.0 repair mortar, and ensuring a clean, uniformly absorbent surface before painting. The radial glazing bars of the round-headed windows are particularly vulnerable to moisture ingress at their junction with the curved frame, and must be maintained with traditional linseed oil putty and a complete linseed oil paint system. The cast-iron balcony railings, with their honeysuckle (anthemion) pattern, are relatively delicate and must be prepared by hand rather than mechanical methods to avoid damage to the fine castings. A zinc-phosphate primer followed by micaceous iron oxide intermediate coat and alkyd gloss finish provides robust protection. Where the railings are fixed to the stucco facade, the junction must be sealed with a lime-based mastic rather than silicone, which would be incompatible with the breathable render system. The rear brick elevations, though less architecturally significant, require periodic repointing in lime-putty mortar and should never be rendered or painted, as their exposed stock brick provides essential breathability for the wall construction. Internal lime plaster, where it survives, must be decorated with breathable finishes to maintain the moisture equilibrium of the wall system.