Denman is a Grade II listed building in the Vale of White Horse local planning authority area, England. First listed on 9 February 1966. Country house. 8 related planning applications.

Denman

WRENN ID
little-chamber-reed
Grade
II
Local Planning Authority
Vale of White Horse
Constituency
Oxford West and Abingdon MP: Layla Moran (LD)
Country
England
Date first listed
9 February 1966
Type
Country house
Address
Denman, New Road, Marcham, OX13 6NW
OS grid reference
SU 452 968
Coordinates
51.66884, -1.34696
Source
Historic England listing

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

Description

This is a late 18th-century country house, later remodelled around 1800 for George Elwes, with subsequent alterations in the 19th and 20th centuries. It is now used as a college.

The house is constructed of limestone ashlar, with a Welsh slate roof and ashlar ridge stacks. The original plan was rectangular, with a double-depth layout accessed from the east. Modern extensions have been added to the south-east and south-west.

The symmetrical, two-storey principal elevation faces east and is seven windows wide, with three windows to a central projecting bay. The central entrance has a segmental pediment supported by consoles above a glazed door with a decorative overlight. Window openings have stone lintels over six-pane sashes. A single oculus is set into the parapet at the south end. The parapet, including the central pediment on the principal elevation, was altered after 1806. The south elevation features a similar central bay, flanked by large tripartite windows; the ground-floor windows are accentuated by Tuscan pilasters. Four oculi are set into the parapet of this elevation. The north and west elevations, both six windows wide, have windows and string courses set at a higher level than those on the east and south. The second and fourth bays project, and contain tripartite windows; the lower windows have triangular pediments and Tuscan pilasters.

Internally, notable features include early 19th-century panelled doors and doorcases, and marble fireplaces. An early 18th-century dog-leg staircase, with an S-shaped wrought-iron balustrade (installed in 1938), is located to the left of the entrance hall. A room to the rear left features Graeco-Egyptian style plaster panels depicting griffins flanking urns, above a blocked door. There are two panelled doors flanking a segmental-arched alcove with consoles. The room also has an Egyptian-style fireplace and cornice. The drawing room has a chimneypiece with panelled pilasters and palmette and anthemion capitals.

Local climate

Denman 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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  • Full EPC report — heating system, energy costs, size, glazing, construction etc.
  • Sale history — 1 transaction since 2022
  • Related listed building consents — 8 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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