Portland House is a Grade II listed building in the West Suffolk local planning authority area, England. First listed on 26 June 1984. A Early Modern House.
Portland House
- WRENN ID
- sleeping-rafter-nettle
- Grade
- II
- Local Planning Authority
- West Suffolk
- Constituency
- West Suffolk MP: Nick Timothy (Con)
- Country
- England
- Date first listed
- 26 June 1984
- Type
- House
- Period
- Early Modern
- Address
- Portland House, 188, High Street, Newmarket
- OS grid reference
- TL 640 631
- Coordinates
- 52.24201, 0.40068
- Source
- Historic England listing
Description
Portland House is a house dating from the early 19th century. It features five windows and stands three storeys tall. The walls are finished in stucco, with channeling up to the first floor. There are flat terminal pilasters with mounted capitals and bases from the first floor to the eaves, and a moulded wooden cornice at the eaves. The roof is slated and has chimneys made of gault brick.
At the ground floor, there are a pair of splayed bays with flat roofs and modillion eaves. The upper floors have sash windows, although these have been replaced with large-pane sashes. To the right, there are a pair of carriage-entrance doors, each consisting of nine panels and flanked by flat pilasters. Above the entrance, there is a splayed bay that rises through two storeys, featuring sash windows and a flat roof.
Local climate
Portland House sits in a drier-than-average part of the UK, with an average of 710 mm of rain a year. This makes it drier than 87% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 77% of listed buildings.
It experiences an average of 34 freeze-thaw cycles a year, fewer than 53% of listed buildings. Of these, 17 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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- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- 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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