Holmbush is a Grade II* listed building in the Horsham local planning authority area, England. Mansion.

Holmbush

WRENN ID
odd-chalk-crow
Grade
II*
Local Planning Authority
Horsham
Constituency
Horsham MP: John Milne (LD)
Country
England
Type
Mansion
Address
Holmbush, Tower Road, Colgate
OS grid reference
TQ 225 337
Coordinates
51.09006, -0.25206
Source
Historic England listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Holmbush is a large castellated mansion built in 1823 for Thomas Broadwood, with the architect being Francis Edwards, although Broadwood is said to have designed the house's plan. The building is constructed of ashlar and has two storeys topped with a castellated parapet. The main front, which faces south-east, features 14 windows and is divided into two sections of different heights. The main section has seven windows, three of which project, and is complemented by octagonal turrets at the corners that include loop lights. The western section also has seven windows but is lower in elevation. The sash windows have dripstones above, and the eastern half of the front retains its glazing bars. The entrance features a doorway with pilasters, a pediment, a semi-circular fanlight, and a recessed door with six fielded panels. The north-west front has 16 windows and includes a three-storey tower with an octagonal turret at the north end and a lower octagonal turret towards the center. There is a classical porch with a pediment, a recessed section without castellation towards the south end, and a projection beyond it. Holmbush is a notable example of a castellated mansion.

Local climate

Holmbush receives an average of 740 mm of rain a year. This makes it drier than 73% 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 31 freeze-thaw cycles a year, fewer than 62% 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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