Cosham House is a Grade II listed building in the Portsmouth local planning authority area, England. First listed on 10 January 1953. Villa. 2 related planning applications.

Cosham House

WRENN ID
fading-ember-solstice
Grade
II
Local Planning Authority
Portsmouth
Constituency
Portsmouth North MP: Amanda Martin (Lab)
Country
England
Date first listed
10 January 1953
Type
Villa
Address
Cosham House, 69, Havant Road, City of Portsmouth, PO6 2JB
OS grid reference
SU 662 056
Coordinates
50.84699, -1.06013
Source
Historic England listing

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

Description

Cosham House is a villa built around 1840, featuring a stucco exterior and a low pitch hipped roof covered with Welsh slate. The building has two storeys and five bays arranged in a 1:3:1 pattern, with the outer bays slightly projecting. A verandah spans the ground floor, supported by thin cast-iron columns with caps. The frieze is timber panelled and bows around the central three bays, topped with a tented roof.

At the centre, there is a large two-storey bow window with three glazed two-leaf French casements, flanked by similar French casements. On the first floor, the central bow window contains three sash windows, with tripartite sashes on either side featuring a wide centre sash and narrow flanking sashes. The building has wide projecting bowed eaves, and the bow window is topped with a conical roof. Below the eaves, there is a slightly projecting band.

To the left, there is an entrance featuring a two-leaf door with four moulded panels, where the upper panels are glazed. This entrance has a fanlight and a projecting porch with a round arch opening, complete with a moulded architrave and an ornate bargeboarded pitched roof. Adjacent to the entrance is a tripartite canted bay window with a central sash and two narrow side sashes, divided by paired pilasters, and topped with a frieze and cornice. On the right side of the building, there are two narrow casements. The first floor features a canted tripartite oriel with a lead pitched roof and blinded flanking windows set within a stone moulded architrave. The interior has not been inspected.

Local climate

Cosham House 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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  • No EPC on record for this property
  • No sale records on file
  • Related listed building consents — 2 applications
  • 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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