Hall Oak is a Grade II listed building in the Camden local planning authority area, England. First listed on 14 May 1974. House. 9 related planning applications.

Hall Oak

WRENN ID
still-rampart-dust
Grade
II
Local Planning Authority
Camden
Constituency
Hampstead and Highgate MP: Tulip Siddiq (Lab)
Country
England
Date first listed
14 May 1974
Type
House
Address
Hall Oak, 42, Frognal Lane, NW3 6PP
OS grid reference
TQ 260 854
Coordinates
51.55369, -0.18293
Source
Historic England listing

Also on this page: sale history · EPC · related consents · flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Hall Oak is a detached house built in 1881 by Basil Champneys for his own residence. It was later altered in the late 20th century. The house is constructed of red brick with a hipped tiled roof. The roof features a coved wooden eaves cornice, Flemish gables, and four tall brick chimney stacks with angle pilasters and cornices, originally linked by balustrading.

The exterior presents an irregular facade of three windows, plus a single-window left-hand extension. The central entrance has a bracketed hood over a panelled door with an overlight. The windows are transom and mullion style with cornices; the left-hand first-floor and attic windows are of Venetian design. A rubbed brick plaque with a scrolled pediment inscribed “AD 1881 BC” is located to the right.

The right-hand return has a slightly projecting bay rising the full height into a Flemish gable with Venetian-style ground-floor and attic windows. The garden front features a central slightly projecting bay rising into a Flemish gable. A slightly projecting porch stands at ground floor, with a square-headed doorway flanked by sidelights extending around the cheeks. Most windows are of Venetian type, with a central first-floor transom and mullion window topped with a rubbed brick pediment. A right-hand extension mirrors the front plaque.

The interior was not inspected during the listing process.

Local climate

Hall Oak sits in one of the driest parts of the UK, with an average of 690 mm of rain a year. This makes it drier than 98% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 98% of listed buildings.

It experiences an average of 30 freeze-thaw cycles a year, fewer than 66% 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 — 1 transaction since 2004
  • Related listed building consents — 9 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
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Nearby listed buildings

  1. Numbers 5 and 6 Including Walls to Side and Front Grade II 36 m
  2. Manor Lodge Grade II 43 m
  3. 49 and 51, Frognal Grade II 47 m
  4. Numbers 1 and 2 Including Walls to Street Grade II 63 m
  5. University College School Porters Lodge Grade II 82 m
  6. Maryon Hall (Number 19) and Maryon House (Number 21) Grade II 109 m
  7. Old Frognal Court Grade II 111 m
  8. 66, Frognal Grade II* 120 m
  9. 39 and 39a, Frognal Grade II 127 m
  10. Gates and Railings to University College School Grade II 129 m