History in Structure

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

Clogwyn Tower

A Grade II Listed Building in Llannor, Gwynedd

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: 52.9071 / 52°54'25"N

Longitude: -4.4016 / 4°24'5"W

OS Eastings: 238588

OS Northings: 337108

OS Grid: SH385371

Mapcode National: GBR 5B.NZ4K

Mapcode Global: WH44J.C675

Entry Name: Clogwyn Tower

Listing Date: 19 October 1971

Last Amended: 8 February 1999

Grade: II

Source: Cadw

Source ID: 4321

Building Class: Gardens, Parks and Urban Spaces

Location: The tower stands on the highest point of the dolerite ridge NE of Pwllheli and 1120m WNW of Abererch church.

County: Gwynedd

Town: Pwllheli

Community: Llannor

Community: Llannor

Locality: Abererch

Traditional County: Caernarfonshire

Find accommodation in


The date of erection of the tower is not recorded, but it was probably built in the early C19 by the Jones family, owners of Ty Iocws, as a landmark and small lookout point with extensive views from St Tudwal's Islands in the W to the Traeth in the E, and N to the Yr Eifl range.


The diminutive tower is built of local dolerite rubble, approximately 1.8m in diameter and standing to c2.3m high, crowned by large stones set in an approximation to a crenellated parapet. Four iron stirrup hoops are set in the masonry to permit access through the gap in the parapet to the standing place at the top. The small size of the tower enhances the apparent grandeur of the rocky outcrop.

Reasons for Listing

Included as an unusual example of an eye-catcher providing a conspicuous landmark in the area, built to provide a picturesque focal point in the landscape.

Other nearby listed buildings

  • II Ffynnon Cawrdaf
    The well lies at the bottom of a field on the SE side of the dolerite ridge running parallel to the Pwllheli to Caernarfon Road.
  • II Pig-swill House at Ty Iocws
    Ty Iocws stands at the end of a long drive off the main road running N from Pwllheli. The small building stands apart from the service yard in a walled toft.
  • II Stable and Gig-house Range at Ty Iocws
    The house stands at the end of a long drive leading off the main Pwllheli Road. The stable yard is at the N end of the rear wing.
  • II Carthouse at Ty Iocws
    The house stands at the end of a long driveway leading off the main road N of Pwllheli. The service yard is at the N end of the rear wing.
  • II Otter House at Ty Iocws
    Ty Iocws (formerly Yoke House) stands at the end of a long driveway, leaving the main road approximately 1km N of Pwllheli. The Otter House is in the centre of a pebbled service yard to the N of the
  • II Ty Iocws, also known as Yoke House, and attached dwelling
    The house stands at the end of a long driveway leading off the main road approximately 1km N of Pwllheli.
  • II Arosfa
    The house stands on a cut-off bend in the main Pwllheli to Caernarfon road, on the corner of a minor road.
  • II Capel Ebenezer
    The chapel stands at the top of the hill on the W side, on the corner of the road to the A499, leading N from Pwllheli.

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.