White Oaks (aka Rosminian Convent) is a Grade II listed building in the Cardiff local planning authority area, Wales. First listed on 31 August 2000. House, convent.

White Oaks (aka Rosminian Convent)

WRENN ID
low-corbel-wren
Grade
II
Local Planning Authority
Cardiff
Constituency
Cardiff North MP: Anna McMorrin (Lab)
Country
Wales
Date first listed
31 August 2000
Type
House, convent
Address
White Oaks (aka Rosminian Convent), St Mellons, Old St. Mellons
OS grid reference
ST 230 818
Coordinates
51.53043, -3.11129
Source
Cadw listing

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

Description

White Oaks, also known as Rosminian Convent, is a house built in the late Arts and Crafts style with some Art Deco features. The exterior is rendered, with the render shaped to create shallow pilasters and platbands. The roof is covered with small slates and features stepped tile kneelers, along with overhanging eaves that have boarded or rendered soffits. There are two tall, narrow rendered ridge stacks with shaped lead flashings.

The windows are all metal-framed casements with leaded quarries. The entrance front is symmetrical with three bays, where the central entrance bay, which has a hipped roof, projects forward. It features a single window on the first floor and sidelights, while the ground floor has a 1930s-style doorway made of moulded ashlar with a large decorative keystone. To the right, the roof, which includes small single-pitch roofed attic lights, slopes down low over two ground floor casements. To the left, it extends over garage double doors and an adjacent casement.

The main garden elevation has a central range of five 6/6 pane casement windows under the eaves, with 10/10 pane casements on the ground floor and a central double French door. The roof also slopes down low to each wider end bay, covering a window on the left and a garden alcove on the right.

The building has been converted for use as a convent. While there are no notable interior fittings, it is said that Austrian oak was used, and all 25 internal oak doors, each comprising a single panel in a raised surround, are retained, although the fireplaces have been replaced.

Local climate

White Oaks (aka Rosminian Convent) sits in a wetter-than-average part of the UK, with an average of 1,000 mm of rain a year. This makes it wetter than 80% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 77% of listed buildings.

It experiences an average of 33 freeze-thaw cycles a year, fewer than 56% of listed buildings. Of these, 13 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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  • Flood risk assessment
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  4. Lychgate to St Mellons Church Grade II 427 m
  5. Church of St Mellon Grade I 494 m
  6. Memorial to Joseph Benjamin Hemingway in St Mellons churchyard Grade II 513 m
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  9. Base of churchyard cross in St Mellons churchyard Grade II 535 m
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