19,21,23 is a Grade II listed building in the Welwyn Hatfield local planning authority area, England. First listed on 9 December 1983. House. 1 related planning application.
19,21,23
- WRENN ID
- rooted-gable-nightshade
- Grade
- II
- Local Planning Authority
- Welwyn Hatfield
- Constituency
- Welwyn Hatfield MP: Andrew Lewin (Lab)
- Country
- England
- Date first listed
- 9 December 1983
- Type
- House
- Address
- 19,21,23, Ayot St. Peter, AL6 9BA
- OS grid reference
- TL 218 139
- Coordinates
- 51.81101, -0.23356
- Source
- Historic England listing
Description
These are houses located at numbers 19, 21, and 23 on Ayot Green, built in the late 18th century and early 19th century. They are constructed from red brick and feature a machine tile roof. The buildings are two storeys high and have floor bands. The older eastern side has vitreous brick headers and four casement windows with glazing bars and slightly cambered heads. The south elevation includes two corbelled and parapeted gable ends that slightly project, along with three recessed sash windows, with the easternmost window being a dummy. There is also a later lean-to structure on the western side.
Local climate
19,21,23 sits in a drier-than-average part of the UK, with an average of 720 mm of rain a year. This makes it drier than 85% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 81% of listed buildings.
It experiences an average of 32 freeze-thaw cycles a year, fewer than 58% of listed buildings. Of these, 15 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.
- No sale records on file
- 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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