Dolphin House is a Grade II listed building in the Wiltshire local planning authority area, England. First listed on 23 August 1974. House. 4 related planning applications.
Dolphin House
- WRENN ID
- forbidden-pillar-bone
- Grade
- II
- Local Planning Authority
- Wiltshire
- Constituency
- Melksham and Devizes MP: Brian Mathew (LD)
- Country
- England
- Date first listed
- 23 August 1974
- Type
- House
- Address
- Dolphin House, 19 and 20, St Margaret's Street, Bradford-On-Avon, BA15 1DD
- OS grid reference
- ST 825 607
- Coordinates
- 51.34523, -2.25121
- Source
- Historic England listing
Description
Dolphin House, at 19 and 20 St Margaret's Street, is a large house dating from the late 18th or early 19th century. The exterior is ashlar, with part of number 19 rendered. It has a pantiled roof with gable-end parapets and kneelers, and two dormers, one original. There are four windows and two doorways, each with painted or raised surrounds. The windows are sash windows with thin glazing bars. The door to number 20 is accessed by three steps, and it is a six-panel door with a rectangular fanlight above. A 19th-century shop window is located to the right, featuring a fascia and entablature supported by plain pilasters. The window glazing is divided by colonnettes with foliated capitals. The building forms a group with The Three Horseshoes, numbers 1 to 4 Frome Road, the Liberal Club, The Baptist Chapel, the Congregational Church and Hall, numbers 6 to 16, 19 to 22, 36, 42 to 49, and Westbury House on St Margaret’s Street, along with number 1 St Margaret’s Hill.
Local climate
Dolphin House receives an average of 870 mm of rain a year. This makes it wetter than 63% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 68% of listed buildings.
It experiences an average of 34 freeze-thaw cycles a year, more than 53% of listed buildings. Of these, 15 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 — 5 transactions since 1995
- Related listed building consents — 4 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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Nearby listed buildings
- 21, St Margaret's Street
- 22, St Margaret's Street
- 1, St Margaret's Place
- 2, St Margaret's Place
- 36, St Margaret's Street
- 3, St Margaret's Place
- 4, St Margaret's Place
- Men's Almhouses Walled Forecourt with Gateway to Nos 1 to 4
- Garden Wall and Gatepiers to the Garden Opposite No 4
- 16, St Margaret's Street