Holywell Cottage is a Grade II listed building in the Vale of White Horse local planning authority area, England. First listed on 5 May 1988. House.

Holywell Cottage

WRENN ID
hollow-frieze-gilt
Grade
II
Local Planning Authority
Vale of White Horse
Constituency
Didcot and Wantage MP: Olly Glover (LD)
Country
England
Date first listed
5 May 1988
Type
House
Address
Holywell Cottage, Wellshead Lane, Harwell
OS grid reference
SU 491 889
Coordinates
51.59683, -1.2913
Source
Historic England listing

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

Description

Holywell Cottage is a house dating from the 16th century, with a likely addition from the late 17th century on the left side. The building features roughcast, probably over timber-framing on the right, and roughcast, likely over brick, on the left. It has a 20th-century plain-tile roof with varying heights and pitches, and a half-hipped design on the right side. There is a brick ridge stack where the addition meets the original structure. The cottage is single-storey-and-attic with a two-bay range on the right and a two-storey, two-bay range on the left. A 20th-century sash door is located to the right of the center, and the windows display irregular fenestration with 19th-century casements. A cross-gable is positioned to the right of the center, featuring a three-light casement. The right return shows a truncated base-cruck truss. The interior has not been inspected but is noted to contain two cruck trusses.

Local climate

Holywell Cottage 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 79% 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 34 freeze-thaw cycles a year, more than 51% of listed buildings. Of these, 15 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
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  • 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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