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Cof Cymru: National Historic Assets of Wales · Wales

Hakin Observatory

Milford Haven, Pembrokeshire, Wales

A scheduled monument in Milford Haven, Pembrokeshire, recorded as Observatory (Post Medieval/Modern).

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Hakin Observatory, Milford Haven, Pembrokeshire, with a pin at the register's coordinates
Ordnance Survey six-inch map, 2nd edition (1888–1913), covering this location. Courtesy of the National Library of Scotland. The pin is ours, placed from the register's coordinates.

The record

Designation
Scheduled monument
Site type
Observatory
Period
Post Medieval/Modern
Community
Milford Haven
Unitary authority
Pembrokeshire
Country
Wales
Coordinates (centre of the scheduled area)
51.71263, -5.05256
SAM number
PE387
Cadw record number
2723

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

5 historical maps cover this location, the earliest the 1608 map "(13) Cambriae Typus." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1608 · (13) Cambriae Typus. (David Rumsey Map Collection, Stanford Libraries)
  • 1636 · Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ... (David Rumsey Map Collection, Stanford Libraries)
  • 1898 · 227 Milford (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1898 · 227 Milford (Outline) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 13. (David Rumsey Map Collection, Stanford Libraries)

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This record in Cadw's own full report ↗

Cadw's description

The following provides a general description of the Scheduled Ancient Monument.

The monument consists of an observatory, a building containing celestial telescopes in which astronomical or meteorological phenomena may be observed. The observatory is octagonal and has a vaulted wing to the east, both of which have been restored (1996). The north range of the Observatory has been successfully converted to a dwelling under scheduled monument consent. It is now protected as a grade II* listed building. The west range has been shown to belong to a range of mid 19th century farmbuildings attached to the Observatory which was abandoned in c. 1810 and has been omitted from the scheduling.

The monument is of national importance for its potential to enhance our knowledge of scientific techniques and processes. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. The structure itself may be expected to contain archaeological information concerning chronology and building techniques.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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