Latitude: 51.9248 / 51°55'29"N
Longitude: -0.2664 / 0°15'58"W
OS Eastings: 519310
OS Northings: 226562
OS Grid: TL193265
Mapcode National: GBR H68.CGS
Mapcode Global: VHGNS.BWKB
Plus Code: 9C3XWPFM+WF
Entry Name: Observatory at South Wing, St Ibbs, 90 Metres to West South West of House
Listing Date: 28 May 1987
Grade: II
Source: Historic England
Source ID: 1295431
English Heritage Legacy ID: 162660
ID on this website: 101295431
Location: St Ibbs, North Hertfordshire, SG4
County: Hertfordshire
District: North Hertfordshire
Civil Parish: St Ippolyts
Built-Up Area: Hitchin
Traditional County: Hertfordshire
Lieutenancy Area (Ceremonial County): Hertfordshire
Church of England Parish: St Ippolyts
Church of England Diocese: St.Albans
Tagged with: Observatory
ST IPPOLLITTS LONDON ROAD
TL 12 NE (West side)
St. Ibbs
3/48 Observatory at South Wing,
- St. Ibbs, 90M to WSW of
house
GV II
Observatory. 1801 for Rev. William Lax, bill extant from Isaac Newton
glazier and plumber of Hitchin for work on it, probably re-using
materials from observatory dismantled from over great gate at Trinity
College, Cambridge, in 1797 (Lax's college). Red and black brick in
header bond; vertical boarding to top band. Roof collapsed. A small
circular building in middle of garden now rather overshadowed by trees.
About 3M of brickwork topped by about 1M timber cowl with small windows
at the cardinal points, part of the rotating cap. Wide segments of wall
thickened externally by 9 inches for full height (one containing
fireplace and flue) with recesses occupied by 3 windows and entrance on
E. Wooden window frames, segmental arches, and 4-panels flush-beaded
door with stone threshold. Remains of slate cap on floor. Interior lined
with matchboarding.
Listing NGR: TL1931026562
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