23 and 25, Great Southsea Street is a Grade II listed building in the Portsmouth local planning authority area, England. House.
23 and 25, Great Southsea Street
- WRENN ID
- turning-pinnacle-poplar
- Grade
- II
- Local Planning Authority
- Portsmouth
- Constituency
- Portsmouth South MP: Stephen Morgan (Lab)
- Country
- England
- Type
- House
- Address
- 23 and 25, Great Southsea Street, City of Portsmouth, PO5 3BY
- OS grid reference
- SZ 640 993
- Coordinates
- 50.79004, -1.09292
- Source
- Historic England listing
Description
23 and 25 Great Southsea Street are two houses built around 1830-1840. They are constructed from buff bricks in Flemish bond and feature a Welsh slate roof with a brick stack on the right. The buildings are two storeys high with a basement and have three bays.
At the center, there are paired doors with moulded lower panels and margin glazed upper panels, set within a tall entrance that includes flanking reeded pilasters, a panelled frieze, and a rectangular margin glazed overlight, along with a frieze and dentil cornice. On either side of the entrance, above the basement windows, are shallow tripartite oriel windows. These windows have a central sash with 16 panes and narrow flanking sashes with 4 panes, divided by reeded pilasters. There is a reeded band at the frieze and cornice above, with a dentilled cornice specifically over No. 25. Each window has a panelled apron below it.
On the first floor, there are three paired 8-pane sashes set beneath flat rendered arches. Above these, there is a brick dentil band and a coped parapet. The interior has not been inspected.
Local climate
23 and 25, Great Southsea Street receives an average of 810 mm of rain a year. This makes it drier than 52% 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 19 freeze-thaw cycles a year, fewer than 79% of listed buildings. Of these, 8 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 — 6 transactions since 1997
- 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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