21, St Martin's Square is a Grade II* listed building in the Chichester local planning authority area, England. First listed on 5 July 1950. Residential. 1 related planning application.
21, St Martin's Square
- WRENN ID
- peeling-panel-sienna
- Grade
- II*
- Local Planning Authority
- Chichester
- Constituency
- Chichester MP: Jess Brown-Fuller (LD)
- Country
- England
- Date first listed
- 5 July 1950
- Type
- Residential
- Address
- 21, St Martin's Square, PO19 1NR
- OS grid reference
- SU 861 049
- Coordinates
- 50.83753, -0.7774
- Source
- Historic England listing
Description
No 21 St Martin's Square is an 18th-century building that stands two storeys tall and features three windows. It is constructed of red brick with distinctive brick dressings and uniquely designed quoins that resemble vertical castellation. The central section of the building projects slightly and includes a Venetian window on the first floor, which has Gothic-style divisions in its head and a gable above that resembles a pediment, complete with an ogee-shaped window in the gable. The other windows are framed with keystones above, flat arches, slender glazing bars, and rubbed brick voussoirs. There is a string course above the ground floor, and a cornice with modillions above the first floor that extends into the gable and returns over the quoins like pilasters. The doorway is adorned with Doric pilasters, an entablature, and a pediment that also features modillions. No 21 is part of a group with Nos 1, 2, 3, 20, and 6 Lion Street.
Local climate
21, St Martin's Square receives an average of 910 mm of rain a year. This makes it wetter than 69% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 94% of listed buildings.
It experiences an average of 7 freeze-thaw cycles a year, fewer than 96% of listed buildings. Of these, 4 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 — 3 transactions since 2003
- 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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