5, Blackbird Lane is a Grade II listed building in the Hertsmere local planning authority area, England. First listed on 12 August 1985. House.

5, Blackbird Lane

WRENN ID
twelfth-stair-moth
Grade
II
Local Planning Authority
Hertsmere
Constituency
Hertsmere MP: Sir Oliver Dowden (Con)
Country
England
Date first listed
12 August 1985
Type
House
Address
5, Blackbird Lane, Aldenham, WD25 8BS
OS grid reference
TQ 145 997
Coordinates
51.68447, -0.34482
Source
Historic England listing

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

Description

No. 5 Blackbird Lane is a house dating from the early 18th century, with an extension added around 1800 and further alterations made in the late 19th century. It is constructed of red brick with burnt headers and features a tiled roof. The building is two storeys high and has a three-window front. The entrance is located on the left and consists of a six-panelled door with a rectangular fanlight above, supported by a hood on richly carved brackets. The windows are casements with cambered heads. On the ground floor, the central window is blocked, with three lights to the right. The first floor has two lights to the left, a blind centre window, and three lights to the right. A projecting brick course runs along the eaves. The roof is gambrel in style, half-hipped to the left, with a rendered gable end parapet to the right that features an end stack. To the right, there is a later addition that is lower and consists of two storeys with two bays. The ground floor of this addition has a segmental head to the left and a blocked opening to the right, with a hipped roof extending to the right. A catslide roof covers a rendered lean-to extension to the right, and there is one hipped dormer on the rear. A stack is located where the original block meets the addition. This house was built as an extension to the earlier Blackbirds Farm House.

Local climate

5, Blackbird Lane 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 89% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 87% of listed buildings.

It experiences an average of 31 freeze-thaw cycles a year, fewer than 61% 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.

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