Guest, Sign inJoin
World War II Pillbox
Fort · near Trearddur · Gwynedd

World War II Pillbox

World War II Pillbox is a grade II listed building in Anglesey. Located on a rocky promontory to the rear (N) of the Trearddur Bay Hotel, set back from the N side of Lon Isallt. Around it, within 15 km, lie 7 more places, Caer Gybi Roman Fort (3.3 km) first on our list.

Photo: World War II Pillbox, Eric Jones (CC BY-SA 2.0)
Where
100 m
south of Trearddur
Warmest months
Jun–Sep
highs of 17–19°C
In brief

Fort near Trearddur

Just outside Trearddur

World War II Pillbox is 100 m south of Trearddur. Towns near it ↓

Grade II listed building

On the official list of protected heritage; Trearddur has 5 listed buildings in all, on its History page. About ↓

Written from OpenStreetMap, Wikidata, the ONS built-up areas and Met Office 1991–2020 averages.

When to go

Weather, month by month

From June to September, Trearddur sees highs of 17–19°C.

Jan9° / 4°72 mm
Feb9° / 4°63 mm
Mar10° / 4°61 mm
Apr12° / 6°58 mm
May15° / 8°52 mm
Jun17° / 11°58 mm
Jul19° / 12°60 mm
Aug19° / 13°70 mm
Sep18° / 11°76 mm
Oct15° / 9°100 mm
Nov12° / 7°110 mm
Dec10° / 5°93 mm
Green months are the warmest. Typical afternoon highs and night lows in Trearddur, and rain in a month. Met Office HadUK-Grid 1991–2020 averages for Trearddur. Opening times change through the year: check before you go. Trearddur’s full climate →
About

World War II Pillbox

Grade II listed building in Anglesey. Located on a rocky promontory to the rear (N) of the Trearddur Bay Hotel, set back from the N side of Lon Isallt.

100 m south of Trearddur.

Trearddur’s listed buildings and monuments →

Type
Fort
Listed
Grade II listed building
Town
100 m south of Trearddur
Facts: Wikidata (CC0) and OpenStreetMap (© OpenStreetMap contributors).
The map

The area around World War II Pillbox

Find World War II Pillbox in orange; each number is a place listed below.

1234567

© OpenStreetMap contributors · ONS built-up area 2022

Towns near it

The nearest towns

The 3 towns are led in size by Holyhead, with 11,753 people. Its home town tops the list; the rest follow by distance.

123
  1. 1Trearddur
  2. 2Holyhead
  3. 3Valley
1 · 100 m north of it

Trearddur

932 people · 4 places to visit

2 · 1.7 km north of it

Holyhead

11,753 people · 4 places to visit

3 · 3.5 km east of it

Valley

2,003 people · 2 places to visit

Compare the 3 towns
TownWhere World War II Pillbox isPeoplePlaces to visit
Trearddur100 m north of it9324
Holyhead1.7 km north of it11,7534
Valley3.5 km east of it2,0032
Make a day of it

While you are near World War II Pillbox

2 museums, 2 attractions and a fort are among the 7 within 15 km.

Within 15 km, close and well known first. Numbers match the map.

Questions about World War II Pillbox

Where is World War II Pillbox?

World War II Pillbox is 100 m south of Trearddur, Gwynedd.

What is World War II Pillbox?

Grade II listed building in Anglesey. Located on a rocky promontory to the rear (N) of the Trearddur Bay Hotel, set back from the N side of Lon Isallt.

When is the best time to visit World War II Pillbox?

June to September are the warmest months in Trearddur, with afternoon highs of 17–19°C (Met Office 1991–2020 averages).

Is World War II Pillbox a listed building?

Yes: Grade II listed building.

What else is there to see near World War II Pillbox?

Within 15 km: Caer Gybi Roman Fort (3.3 km), Holyhead Maritime Museum (4 km), Castell Rhonyn (14 km) and Barclodiad y Gawres (12 km).

Places: OpenStreetMap (© OpenStreetMap contributors, Open Database Licence) and Wikidata (CC0), placed in the ONS 2022 built-up area (Open Government Licence v3.0). Visitor counts are the latest Wikidata gives, with their year.

Photos: each place’s Wikidata image, from Wikimedia Commons under the licence below (our copy, resized).

Photo credits (4)

Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.