45 and 46, Broad Street is a Grade II listed building in the Dorset local planning authority area, England. First listed on 23 April 1952. House. 3 related planning applications.

45 and 46, Broad Street

WRENN ID
rusted-threshold-wagtail
Grade
II
Local Planning Authority
Dorset
Constituency
West Dorset MP: Edward Morello (LD)
Country
England
Date first listed
23 April 1952
Type
House
Address
45 and 46, Broad Street, Lyme Regis, DT7 3QF
OS grid reference
SY 340 921
Coordinates
50.72513, -2.93546
Source
Historic England listing

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

Description

The building at 45 and 46 Broad Street dates from the early to mid-18th century, incorporating elements of the earlier Great House. Part of the original Great House is believed to survive in the rear wing. The front facade is a three-storey, three-bay design with a slate roof and stuccoed front. It features a moulded cornice and parapet. The second floor has sash windows with glazing bars. The first floor has French casements with margin lights, opening onto an iron balcony. A modern shop front occupies the left-hand side on the ground floor. At the right-hand end, a house door, accessed by steps, has ledged reveals and a four-panelled door with a rectangular fanlight above. A plaque on the building notes that the site was once part of the Great House of Lyme Regis, and that in 1773 it was a residence for William Pitt, 1st Earl of Chatham, and his son, William Pitt, and later, from 1796 to 1797, the home of Mary Russell Mitford. Nos 45 to 65 Broad Street are considered a group.

Local climate

45 and 46, Broad Street receives an average of 760 mm of rain a year. This makes it drier than 66% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 74% of listed buildings.

It experiences an average of 19 freeze-thaw cycles a year, fewer than 81% of listed buildings. Of these, 6 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 — 6 transactions since 2001
  • Related listed building consents — 3 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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