The Crypt is a Grade II* listed building in the Pembrokeshire local planning authority area, Wales. First listed on 12 October 1951. A Medieval Crypt.

The Crypt

WRENN ID
sacred-hammer-alder
Grade
II*
Local Planning Authority
Pembrokeshire
Constituency
Mid and South Pembrokeshire MP: Henry Tufnell (Lab)
Country
Wales
Date first listed
12 October 1951
Type
Crypt
Address
The Crypt, Haverfordwest
OS grid reference
SM 952 155
Coordinates
51.8011, -4.97136
Source
Cadw listing

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

Description

The Crypt is a Grade II* listed medieval vaulted semi-basement. It features rubble stone walls to the east and north, with a pointed doorway accessed by steps on the east side, and grey limestone blocks forming the jambs and voussoirs. There is an iron grille over the doorway, and a segmental arched square opening on the north side, also with an iron grille. The top is flat and paved, and a modern shop unit has been built above.

Inside, the space is entirely vaulted and has two aisles. The vaults are supported by two sturdy round columns made of cut stone, which have chamfered simple bases and caps. From these columns spring heavy quadripartite vaults that feature deep-chamfered ribs of cut stone, with rough rubble infill in the cells between. The ribs rise directly from the rubble stone walls of the chamber without the use of corbels.

Local climate

The Crypt sits in a wetter-than-average part of the UK, with an average of 1,060 mm of rain a year. This makes it wetter than 85% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 96% of listed buildings.

It experiences an average of 4 freeze-thaw cycles a year, fewer than 98% of listed buildings. Of these, 1 follows 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

Sign in or create a free account to unlock:

  • No EPC on record for this property
  • No sale records on file
  • No related consent applications matched
  • 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
Create free account

Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.

Similar buildings

The closest matches to this building from all 493,000 UK listed buildings, by architecture, period and materials.

Nearby listed buildings

  1. Nos 6, 8, 10, 12 including the wing to rear of No 6 Grade II 23 m
  2. 5 Market Street Grade II 24 m
  3. 7 High Street Grade II 28 m
  4. 7 & 7a Market Street Grade II 32 m
  5. Churchyard walls, gates, gatepiers and railings at Church of Saint Mary Grade II 32 m
  6. 9 High Street Grade II 33 m
  7. Church of Saint Mary Grade I 36 m
  8. 4 High Street Grade II 38 m
  9. 11 High Street Grade II 38 m
  10. 2 High Street Grade II 38 m