Hamper Mill Cottage is a Grade II listed building in the Three Rivers local planning authority area, England. First listed on 3 October 1985. A Georgian House. 2 related planning applications.
Hamper Mill Cottage
- WRENN ID
- knotted-banister-evening
- Grade
- II
- Local Planning Authority
- Three Rivers
- Constituency
- South West Hertfordshire MP: Mr Gagan Mohindra (Con)
- Country
- England
- Date first listed
- 3 October 1985
- Type
- House
- Period
- Georgian
- Address
- Hamper Mill Cottage, Hampermill Lane, Watford Rural, WD19 4PL
- OS grid reference
- TQ 097 939
- Coordinates
- 51.63361, -0.41571
- Source
- Historic England listing
Description
Hamper Mill Cottage is a mid-18th century house, originally built as accommodation for mill workers and storage associated with Hamper Mill. A further attic was added in the 19th century, with alterations made in the 20th century. The house is constructed of red brick with burnt headers. Some parts are roughcast, and the attic is weatherboarded, with a machine tiled roof. It has two storeys and an attic, with a three-bay facade.
The ground floor has an entrance and two windows inserted within a large central round arch. To the left is a carriage bay with strap-hinged double doors. C20 cross casement windows are on the ground floor to the right, and also on the first floor. The eaves are formed of dentilled brick. A stack is located on the front pitch to the right of the centre. The attic features a central three-light and flanking two-light casement windows with leaded lights, beneath an eaves cornice.
The left return has 19th-century buttresses on the ground floor, along with scattered casement windows. A lunette is present in the attic, positioned under a bargeboarded gable. The right return has a lunette in the attic under a bargeboarded gable. To the rear, the eaves are dentilled, and there are C20 casements. Large stacks are present: one to the left of the centre, and another diagonally set at the right end.
Inside, the ground floor features chamfered binding beams; the building is included on the list for group value. The cottage adjoins The Old Cottage to the left.
Local climate
Hamper Mill Cottage sits in one of the driest parts of the UK, with an average of 700 mm of rain a year. This makes it drier than 93% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 91% of listed buildings.
It experiences an average of 30 freeze-thaw cycles a year, fewer than 65% of listed buildings. Of these, 13 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 2001
- Related listed building consents — 2 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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