Pont Llanystumdwy is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 19 January 1952. Bank.
Pont Llanystumdwy
- WRENN ID
- stark-transept-curlew
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 19 January 1952
- Type
- Bank
- Address
- Pont Llanystumdwy, Criccieth
- OS grid reference
- SH 474 385
- Coordinates
- 52.92268, -4.27059
- Source
- Cadw listing
Description
Pont Llanystumdwy is a bridge built of rubble stonework. It features two segmental arches made with radial stones that are recessed under a regulating course, with flush spandrels and a parapet. These arches are supported by a substantial water pier that has a high rounded cutwater on the upstream side and a low cutwater on the downstream side. At the northern end, there is a smaller segmental flood arch, constructed in a similar manner and likely to the same radius, along with a square culvert, probably for a former mill stream. A similar filled arch may exist at the southern end. The upstream cutwater has been modified to support a concrete pedestrian walkway with steel railings. The main arches span approximately 10 meters, with the crown rising 3.75 meters above the river. The original bridge was 2.8 meters wide and was widened by 1.8 meters in 1780. The flush coped parapets, which are 40 centimeters thick, once displayed inscriptions from 1745, WWA 1859, and D.DLL/A 12/1859, but these are no longer visible. The current carriageway measures 4 meters in width.
Local climate
Pont Llanystumdwy sits in one of the wettest parts of the UK, with an average of 1,610 mm of rain a year. This makes it wetter than 99% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 99% of listed buildings.
It experiences an average of 11 freeze-thaw cycles a year, fewer than 89% of listed buildings. Of these, 4 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
Sign in or create a free account to unlock:
- No EPC on record for this property
- Sale history — 1 transaction since 2003
- 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
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.
this building 1 similar nearby listed buildings
Nearby listed buildings
- Milestone
- Church of St John the Baptist
- Churchyard Wall and Lychgate to the Church of St John the Baptist
- Ty'n Llan
- Caernarfon Gates and Gate Piers to Amgueddfa Lloyd George
- No 1, Minafon
- Front Walls and Gates to Moriah Methodist Chapel
- Grave of David Lloyd George
- Pwllheli Gates and Gate Piers to Amgueddfa Lloyd George
- No 2, Minafon