Milestone on B4417 junction is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 2 March 1998. Milestone. 1 related planning application.

Milestone on B4417 junction

WRENN ID
north-buttress-vetch
Grade
II
Local Planning Authority
Gwynedd
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
2 March 1998
Type
Milestone
Address
Milestone on B4417 junction, Penllech, Pwllheli, Tudweiliog
OS grid reference
SH 226 347
Coordinates
52.88127, -4.63729
Source
Cadw listing

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

Description

This is a freestanding stone milestone located at the junction of the B4417. It possibly originally had a curved top but is now much worn. The milestone stands approximately 60 centimeters high and 40 centimeters wide. The carved inscription reads:

P 12 3/4
N 7
C 27
A 6 1/2

The initial letters represent the distances to Pwllheli, Nefyn, Caernarfon, and Aberdaron.

Local climate

Milestone on B4417 junction sits in one of the wettest parts of the UK, with an average of 1,640 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 2 freeze-thaw cycles a year, fewer than 99% 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 0.2°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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  • No EPC on record for this property
  • No sale records on file
  • Related listed building consents — 1 application
  • 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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