Rosslyn House is a Grade II listed building in the Camden local planning authority area, England. First listed on 14 May 1974. House. 5 related planning applications.

Rosslyn House

WRENN ID
ragged-hearth-mist
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
Rosslyn House, 2a, Pilgrims Lane, NW3 1SL
OS grid reference
TQ 268 855
Coordinates
51.555, -0.17212
Source
Historic England listing

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

Description

Rosslyn House is a detached house dating from the early 19th century. It is constructed of stucco and has a slated, pitched roof with projecting eaves and tall, flat-topped end stacks. The house has three storeys and three windows on the front elevation. A single-storey entrance extension is located on the left-hand return. The doorway within this extension dates from the mid-19th century and features a round arch with pilaster-jambs supporting a cornice head and a fanlight, above a panelled door. A continuous cast-iron balcony is positioned at first-floor level, with a 20th-century verandah placed below. Three shallow, elliptical-arched recesses rise from the first floor, with casements at first floor level and hornless sash windows on the second. The interior has not been inspected. Rosslyn House is the sole surviving building from an early 19th-century row of houses that originally extended to Downshire Hill.

Local climate

Rosslyn House 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 — 7 transactions since 2002
  • Related listed building consents — 5 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. Lloyds Bank Numbers 1 and 3 with Railings and Gates to South Grade II* 29 m
  2. Sidney House Grade II 37 m
  3. Cossey Cottage Grade II 43 m
  4. Numbers 50 and 51 and Attached Area Walls and Balustrade Grade II 63 m
  5. K6 Telephone Kiosk Outside the Police Station Grade II 63 m
  6. Lamp Post in the Grounds of the Unitarian Chapel Grade II 68 m
  7. Former Police Station and Courthouse, including stable and harness room, railings and lamps Grade II 70 m
  8. Rosslyn Hill Unitarian Chapel Grade II 74 m
  9. 4 and 5, Downshire Hill Grade II 76 m
  10. 6, Downshire Hill Grade II 89 m