History in Structure

This site is entirely user-supported. See how you can help.

Llanddwyn Lighthouse

A Grade II Listed Building in Rhosyr, Isle of Anglesey

We don't have any photos of this building yet. Why don't you be the first to send us one?

Upload Photo »

Approximate Location Map
Large Map »


Latitude: 53.1352 / 53°8'6"N

Longitude: -4.4155 / 4°24'55"W

OS Eastings: 238504

OS Northings: 362508

OS Grid: SH385625

Mapcode National: GBR 5B.6FVY

Mapcode Global: WH43C.4GMB

Plus Code: 9C5Q4HPM+3Q

Entry Name: Llanddwyn Lighthouse

Listing Date: 29 March 1996

Last Amended: 19 October 1998

Grade: II

Source: Cadw

Source ID: 18036

Building Class: Maritime

Location: In an elevated position at the SW extremity of Llanddwyn Island.

County: Isle of Anglesey

Community: Rhosyr

Community: Rhosyr

Locality: Llanddwyn Island

Traditional County: Anglesey

Find accommodation in


The site marks the W entrance to Menai Strait, and a light was first exhibited here in 1846. The tower itself however is probably a construction of the early C19 (documentary sources suggest a date of between 1800 and 1823) which served originally as a day-mark, and was then adapted for use as a lighthouse with the construction of a lean-to lantern room. The lighthouse was maintained as a local light by a private trust and was used until the 1970s. Restoration in progress.


The circular tower is lime-washed render over rubble, with renewed shallow conical slate roof. 4-stage tower with doorway in N side flanked by small windows, and a single window on each of two floors above it, the window detail renewed. Lean-to lantern room on S side, with large windows overlooking the sea. The tower is enclosed by low rubble walls, which also form the parapets for the inclined access to its elevated rock-site.

Reasons for Listing

A good surviving example of an early C19 day-mark, adapted for later use as a lighthouse and part of a group with the lighthouse keepers' and pilots cottages nearby.

Recommended Books

Other nearby listed buildings

BritishListedBuildings.co.uk is an independent online resource and is not associated with any government department. All government data published here is used under licence. Please do not contact BritishListedBuildings.co.uk for any queries related to any individual listed building, planning permission related to listed buildings or the listing process itself.

British Listed Buildings is a Good Stuff website.