40, Park Street is a Grade II listed building in the Welwyn Hatfield local planning authority area, England. First listed on 9 December 1983. House.

40, Park Street

WRENN ID
shadowed-mullion-primrose
Grade
II
Local Planning Authority
Welwyn Hatfield
Constituency
Welwyn Hatfield MP: Andrew Lewin (Lab)
Country
England
Date first listed
9 December 1983
Type
House
OS grid reference
TL 234 087
Coordinates
51.764, -0.21272
Source
Historic England listing

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

Description

No. 40 Park Street is a house dating from the early to mid-18th century. It features a chequered red brick front and likely has an earlier core. The roof is gable-ended and covered with plain tiles, and there is an external chimney stack on the left side, which is probably from the 17th century in its lower half. The building has two storeys and includes four ground floor glazing-bar casements. In the centre, there is a 19th-century door with a latticed porch. A floor band runs along the building, and there are three similar casements on the first floor. To the left, there is a single-storey lean-to added in the 19th century.

Local climate

40, Park Street 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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  • 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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Nearby listed buildings

  1. Hill House Grade II* 48 m
  2. 44, Park Street Grade II 59 m
  3. The Horse and Groom Public House Grade II 105 m
  4. Gates,Screen and 4 Gateposts to Hatfield Park Grade II 123 m
  5. Statue of Third Marquess of Salisbury Grade II 131 m
  6. Hatfield War Memorial including memorial cross, garden wall and gates, and shelter pavilion Grade II* 132 m
  7. The Old Coach House Grade II 143 m
  8. 4,6,8,10, Park Street Grade II 153 m
  9. The Eight Bells Public House Grade II 171 m
  10. 1, 3 & 5 Park Street Grade II* 174 m