Waterside Preparatory School (The Old Estate Mansion) is a Grade II listed building in the Uttlesford local planning authority area, England. First listed on 22 February 1980. School. 16 related planning applications.
Waterside Preparatory School (The Old Estate Mansion)
- WRENN ID
- dreaming-hall-thunder
- Grade
- II
- Local Planning Authority
- Uttlesford
- Constituency
- North West Essex MP: Mrs Kemi Badenoch (Con)
- Country
- England
- Date first listed
- 22 February 1980
- Type
- School
- Address
- Waterside Preparatory School (The Old Estate Mansion), Hassobury Estate, Farnham, CM23 1JR
- OS grid reference
- TL 485 251
- Coordinates
- 51.90483, 0.15779
- Source
- Historic England listing
Description
The Waterside Preparatory School, also known as the Old Estate Mansion, is a large York stone house built in 1868 by P.C. Hardwick (the younger) as part of the Farnham Hassobury Estate. The house is designed in the Gothic style and is intentionally asymmetric. It is mainly two and three stories high, with a one-story wing on the west side and attics above. The north front features a large gable, a three-story, half-octagonal castellated bay, and a three-story entrance wing, gabled with a large oriel bay on the first storey, and a Gothic arched doorway below. The south front has two gables and two splayed bays with traceried parapets. Windows are primarily stone mullioned and transomed casements with Gothic arched heads. The roof is tiled, with numerous gabled dormers boasting ornamental bargeboards on both frontages, and a number of tall chimney stacks with grouped circular shafts and moulded caps and bases.
Local climate
Waterside Preparatory School (The Old Estate Mansion) 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 91% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 86% of listed buildings.
It experiences an average of 35 freeze-thaw cycles a year, more than 55% 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- Sale history — 8 transactions since 1999
- Related listed building consents — 16 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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