Glendower House is a Grade II* listed building in the Monmouthshire local planning authority area, Wales. First listed on 27 October 1965. Chapel.
Glendower House
- WRENN ID
- open-pinnacle-foxglove
- Grade
- II*
- Local Planning Authority
- Monmouthshire
- Constituency
- Monmouthshire MP: Catherine Fookes (Lab)
- Country
- Wales
- Date first listed
- 27 October 1965
- Type
- Chapel
- Address
- Glendower House, Monmouth, NP25 3DG
- OS grid reference
- SO 508 127
- Coordinates
- 51.81132, -2.7142
- Source
- Cadw listing
Description
Glendower House is a two-storey neo-Classical chapel, stuccoed and painted throughout, with Welsh slate roofs. The rectangular building features a three-bay facade, flanked by two full-height plain pilasters. The centre bay is recessed and has two massive rounded three-quarter columns topped with Corinthian capitals. The ground floor has double doors with a narrow round-headed window set in rustication above, along with a small paned window. The side bays have matching first-floor windows and plain panels beneath, all framed by architraves. A cornice and panelled parapet are present, broken at the centre by balustrading, while the roof is not visible from the street.
The return elevations have four similar upper-floor windows, framed by additional pilasters beside the outer windows. There is a cornice, but only a low parapet. The rear elevation features a single-storey hipped roof extension with circular windows on either side in the upper floor. The roof is slate and has an M-profile.
The interior of Glendower House had been derelict but was repaired and converted into a modern house in 2002. Although it was not inspected during the resurvey, it is known to retain the entrance lobby, original stairs, gallery, and is essentially complete in its main components.
Local climate
Glendower House receives an average of 820 mm of rain a year. This makes it wetter than 52% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 57% of listed buildings.
It experiences an average of 42 freeze-thaw cycles a year, more than 80% of listed buildings. Of these, 19 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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- No EPC on record for this property
- Sale history — 1 transaction since 2006
- No related consent applications matched
- 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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