Harbour House is a Grade II listed building in the Pembrokeshire Coast National Park local planning authority area, Wales. First listed on 19 March 1951. House.
Harbour House
- WRENN ID
- gaunt-rotunda-summer
- Grade
- II
- Local Planning Authority
- Pembrokeshire Coast National Park
- Constituency
- Mid and South Pembrokeshire MP: Henry Tufnell (Lab)
- Country
- Wales
- Date first listed
- 19 March 1951
- Type
- House
- Address
- Harbour House, 1 Castle Square, Tenby
- OS grid reference
- SN 136 004
- Coordinates
- 51.67228, -4.69626
- Source
- Cadw listing
Description
Harbour House is a house built with painted stucco that mimics ashlar, topped with a slate roof behind parapets and hipped to the right, featuring a small rendered stack at the left end. It stands four storeys tall and has a three-window range with a plain parapet. The small-paned sash windows include square 9-pane sashes on both upper floors, suggesting that the top storey was added later, and 12-pane sashes on the lower floors. On the first floor to the left, there is a canted bay window with a leaded roof and 4-12-4-pane sashes. The central entrance features an open pedimented timber doorcase with thin columns, a 6-panel door, and a radiating-bar fanlight. The right end wall facing the castle approach has windows positioned to the right, including a small window on the first floor, a 9-pane window on the second floor, and a 4-pane window on the third floor. A rainwater head dated 1922 is also present. The rear wall of the house backs onto the end wall of St Catherine's House.
Local climate
Harbour House sits in one of the wettest parts of the UK, with an average of 1,210 mm of rain a year. This makes it wetter than 91% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 98% of listed buildings.
It experiences an average of 5 freeze-thaw cycles a year, fewer than 97% of listed buildings. Of these, 1 follows 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 2003
- 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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Nearby listed buildings
- 2 Castle Square
- St Catherine's House, including area railings
- Whitesands Gate
- Retaining wall and parapet to raised roadway before Nos 1, 2 & 3
- No 2 St Catherine's and area railings
- No 6 St Julian Terrace
- Castle Court and retaining wall to left
- No 5 St Julian Terrace
- The Harbour Master's Office
- No 4 St Julian Terrace