17, Mallams is a Grade II listed building in the Dorset local planning authority area, England. First listed on 17 May 1993. House. 3 related planning applications.
17, Mallams
- WRENN ID
- hollow-outpost-holly
- Grade
- II
- Local Planning Authority
- Dorset
- Constituency
- South Dorset MP: Lloyd Hatton (Lab)
- Country
- England
- Date first listed
- 17 May 1993
- Type
- House
- Address
- 17, Mallams, Portland, DT5 1NJ
- OS grid reference
- SY 685 734
- Coordinates
- 50.56032, -2.44492
- Source
- Historic England listing
Description
17, Mallams is an early 19th-century house in a row. The building is constructed of fine squared cut stone with a slate roof. It is three storeys high and has a single window. The windows are all four-pane sashes. A 19th-century six-panel door, partially glazed, is located on the left side. The windows are topped with large, flat stone lintels. The roof has coped verges, and a large stone stack with a cap is situated on the right. The building is listed for its group value.
Local climate
17, Mallams receives an average of 840 mm of rain a year. This makes it wetter than 55% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 77% of listed buildings.
It experiences an average of 13 freeze-thaw cycles a year, fewer than 88% of listed buildings. Of these, 5 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 — 2 transactions since 2004
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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