12 and 12a, Castle Street is a Grade II listed building in the Dacorum local planning authority area, England. First listed on 9 May 1973. House. 6 related planning applications.
12 and 12a, Castle Street
- WRENN ID
- outer-gateway-moon
- Grade
- II
- Local Planning Authority
- Dacorum
- Constituency
- Harpenden and Berkhamsted MP: Victoria Collins (LD)
- Country
- England
- Date first listed
- 9 May 1973
- Type
- House
- Address
- 12 and 12a, Castle Street, Berkhamsted, HP4 2BQ
- OS grid reference
- SP 994 077
- Coordinates
- 51.76005, -0.56073
- Source
- Historic England listing
Description
This is an early 19th-century building on Castle Street, comprising two properties, number 12 and 12A. It is constructed of brick with stucco dressings, quoins, and a channelled ground floor. The roof is slate, finished with a dentil cornice. The building is three stories high, featuring two arched sash windows with glazing bars. These windows are embellished with pilasters, archivolts, and keyblocks. The ground floor is divided into two shops, with a continuous frieze and cornice above. Each shop has segmentally arched windows and slim, half-glazed doors. Numbers 1 to 9, 11, 12, and 12A form a group.
Local climate
12 and 12a, Castle Street sits in a drier-than-average part of the UK, with an average of 730 mm of rain a year. This makes it drier than 77% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 79% of listed buildings.
It experiences an average of 38 freeze-thaw cycles a year, more than 72% of listed buildings. Of these, 18 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 — 3 transactions since 2013
- Related listed building consents — 6 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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