Hartnup House is a Grade II* listed building in the Ashford local planning authority area, England. A C15 House.
Hartnup House
- WRENN ID
- deep-cupola-poplar
- Grade
- II*
- Local Planning Authority
- Ashford
- Constituency
- Weald of Kent MP: Katie Lam (Con)
- Country
- England
- Type
- House
- Address
- Hartnup House, Water Lane, Smarden
- OS grid reference
- TQ 879 423
- Coordinates
- 51.14942, 0.68555
- Source
- Historic England listing
Description
Hartnup House is an L-shaped timber-framed building, with the north-west wing likely dating from the 15th century. It features plaster infilling that is colour-washed, and the ground floor is close-studded. The first floor extends over both fronts, supported by protruding ends of the floor joists and brackets. Inside, there is a dragon beam with a moulded post. The building has a hipped tiled roof and casement windows with small square leaded panes. It consists of two storeys and attics, with three windows and two hipped dormers facing north-west, and one window and one hipped dormer facing north-east.
The south-east wing was added by Matthew Hartnup in 1671 and has red brick infilling. This wing features a bay window with five lights on both the ground and first floors, topped by a gable that oversails on a bessummer, which is carved with the figures of two hippopotamuses and the words "Matthew Hartnup," along with an attic window dated 1671 above it. The south-east window bay of this wing has been refaced in red brick with grey headers and includes two windows. There is also a doorcase adorned with single petalled roses of York and Lancaster. The courtyard of Hartnup House is paved with Bethersden marble.
Local climate
Hartnup 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 86% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 53% of listed buildings.
It experiences an average of 24 freeze-thaw cycles a year, fewer than 74% of listed buildings. Of these, 12 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
- Sale history — 1 transaction since 2021
- 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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