The Old Custom House is a Grade II* listed building in the Ipswich local planning authority area, England. First listed on 19 December 1951. Commercial building. 3 related planning applications.

The Old Custom House

WRENN ID
blind-forge-ebony
Grade
II*
Local Planning Authority
Ipswich
Constituency
Ipswich MP: Jack Abbott (Lab)
Country
England
Date first listed
19 December 1951
Type
Commercial building
Address
The Old Custom House, Key Street, IP4 1BY
OS grid reference
TM 166 440
Coordinates
52.05284, 1.15895
Source
Historic England listing

Also on this page: EPC · related consents · flood risk · radon risk · weather exposure · detailed attributes ↓

Description

The Old Custom House, built in 1844 for the Corporation of Ipswich, stands near the location of an earlier custom house. Designed by Ipswich architect J.M. Clark, it’s an imposing red brick structure with grey gault brick dressings. The south frontage, facing the docks, features a tall single storey above a high arcaded basement with brick rustications and a stone blocking course. A central projecting Tetrastyle Tuscan portico, topped with a sculptured pediment, is the focal point, flanked by pavilions also marked by grey brick rustications. A Palladian staircase with double flights of stone balustrades leads to the portico, which includes a semi-circular domed arch with rusticated brick voussoirs, a keystone, and a small central doorway with massive rustications. A panelled and studded door with a semi-circular arched head and stone architrave is flanked by two Venetian-style windows with stone surrounds. Tall casement windows with stone shouldered architraves, pulvinated friezes, and pediments are also present. The end pavilions are distinguished by windows with pilasters and cornices, surmounted by semi-circular, domed recesses featuring shell ornamentation. A string course runs at window sill level, with panelled brick aprons beneath the windows. The east and west frontages each have two storeys above the arcaded basement, with a three-window range featuring casements in grey brick surrounds. The north front rises to four storeys, with an eight-window range of double-hung sashes with glazing bars in grey brick surrounds on the second and third storeys, set within recessed brick panels with semi-circular heads on the ground and first storeys. The central section of rusticated brick breaks forward slightly, incorporating a semi-circular arched doorway, a fanlight, and a Venetian-style window within grey brick rusticated pilasters, cornice, and a voussoired brick arch. An east end pavilion projects slightly, and a tall square tower stands at the west end. This tower features three storeys of open arches (some now blocked) and a clock on each face, all set within recessed brick panels. The pantiled roof has a wide overhanging eaves soffit on brackets, extending over the portico, pediment, and tower.

Local climate

The Old Custom House sits in one of the driest parts of the UK, with an average of 690 mm of rain a year. This makes it drier than 96% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 63% of listed buildings.

It experiences an average of 22 freeze-thaw cycles a year, fewer than 77% of listed buildings. Of these, 11 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.

Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.

More on this building

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  • Full EPC report — heating system, energy costs, size, glazing, construction etc.
  • No sale records on file
  • Related listed building consents — 3 applications
  • Detailed attributes — period, style, materials, features
  • Flood risk assessment
  • Radon risk assessment
  • Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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