Portland House is a Grade II listed building in the Carmarthenshire local planning authority area, Wales. First listed on 18 June 2004. House, shop. 1 related planning application.
Portland House
- WRENN ID
- crumbling-nave-kestrel
- Grade
- II
- Local Planning Authority
- Carmarthenshire
- Constituency
- Caerfyrddin MP: Ann Davies (PC)
- Country
- Wales
- Date first listed
- 18 June 2004
- Type
- House, shop
- Address
- Portland House, 15 Stone Street, Llandovery, SA20 0BX
- OS grid reference
- SN 767 344
- Coordinates
- 51.99484, -3.79612
- Source
- Cadw listing
Description
Portland House is a terraced house and shop that shares a similar design with No 13 and maintains the same roofline as Nos 11-17. It features three bays and two storeys, topped with a slate gabled roof, end chimneys, and deep eaves. The facade is painted roughcast with stucco dressings, including a sill band and long and short quoins on both sides of the first floor, as well as channelled piers on the ground floor. There is a plinth at the base.
The windows are adorned with vermiculated keys and shouldered surrounds on the upper floor and the left-hand ground floor openings, all fitted with plate-glass 2-pane horned sash windows. The window bays are slightly offset to the left.
The central house door and the shop front to the right are housed in a shared casing that features three pilasters, a narrow frieze, a cornice, and a flat top with a blind-box over the shopfront. The house door is a 20th-century design with a plain rectangular overlight above it. The shop to the right has an earlier 20th-century half-glazed recessed door to the left, which also has a plain rectangular overlight, along with a panelled soffit and left reveal. This door includes a fielded panel and a carved segmental curved panel at the base of the plate glass pane with a cambered head. The shop has a single pane canted into the door and a plate glass front pane with brass framing and an angle shaft.
The interior of the shop has been altered.
Local climate
Portland House sits in one of the wettest parts of the UK, with an average of 1,390 mm of rain a year. This makes it wetter than 97% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 91% of listed buildings.
It experiences an average of 43 freeze-thaw cycles a year, more than 84% of listed buildings. Of these, 23 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
- No sale records on file
- Related listed building consents — 1 application
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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