26 and 26a, East St Helen Street is a Grade II* listed building in the Vale of White Horse local planning authority area, England. First listed on 19 January 1951. A Medieval House. 1 related planning application.

26 and 26a, East St Helen Street

WRENN ID
muted-joist-birch
Grade
II*
Local Planning Authority
Vale of White Horse
Constituency
Oxford West and Abingdon MP: Layla Moran (LD)
Country
England
Date first listed
19 January 1951
Type
House
Period
Medieval
Address
26 and 26a, East St Helen Street, Abingdon on Thames, OX14 5EB
OS grid reference
SU 497 969
Coordinates
51.66895, -1.28197
Source
Historic England listing

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

Description

Abingdon’s 26 and 26A East St Helen Street is a timber-framed house, dating back to approximately 1430, with tree-ring dates confirming construction between 1428 and 1431. The building has undergone alterations around the late 16th or early 17th century and again in the late 18th or early 19th century. The building combines timber framing, brick, and stone construction, topped with a plain tile roof and brick axial stacks.

The original design was a hall house with cross-wings that projected into the open hall and were jettied at the front. The cross-wings also extend to the rear, formerly linked by a first-floor gallery. A floor was inserted into the open hall in the late 16th or early 17th century. In the late 18th or early 19th century, the north cross-wing was rebuilt, and a carriageway was created through the ground storey of the hall.

The building is two storeys high. The first floor is jettied, with three bays featuring gables to the left and right (the left gable being wider). The first floor has modern casements with leaded panes, with a small light flanking the left gable. Cusped tracery wooden lights are set into the returns of the right-hand gable. A gabled dormer is centrally positioned. On the ground floor, a carriageway is located to the left of centre, with a 16-pane sash window to the left and right, accompanied by shutters. A small 8-pane window sits immediately to the right of the carriageway. The rear features a gallery over the central carriageway, showcasing twelve lights with cusped tracery. The south wing is jettied on its inner north side, while the wing on the right is built of stone rubble.

The interior retains roofs with cambered collars and arch bracing below, and wind-braces. The hall’s trusses were originally filled with wattle and daub to direct smoke from the open hearth to a louvre above. A panelling ceiling can be observed within a ground floor room at the rear of the south wing, and the chamber above features mid-16th century mural paintings on the west and south walls, depicting red and white vertical stripes and a floral design. Original stone fireplaces remain.

Local climate

26 and 26a, East St Helen Street sits in a drier-than-average part of the UK, with an average of 730 mm of rain a year. This makes it drier than 78% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 69% of listed buildings.

It experiences an average of 32 freeze-thaw cycles a year, fewer than 59% of listed buildings. Of these, 14 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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  • 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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