Bon-y-maen, sometimes spelt Bonymaen, (Welsh: Bôn-y-maen) is a community in Swansea, Wales located about 1.5 miles (2.4 km) north east of Swansea city centre. It falls within the coterminous Bonymaen ward for elections to Swansea Council.

Swansea Wales communities - Bonymaen locator.png
Location of Bonymaen within Swansea
Population6,857 (2011)[1]
OS grid referenceSS6796
  • Bonymaen
Principal area
Ceremonial county
Sovereign stateUnited Kingdom
Historic county
Post townSWANSEA
Postcode districtSA1
Dialling code01792
PoliceSouth Wales
FireMid and West Wales
UK Parliament
Senedd Cymru – Welsh Parliament
List of places

Bôn-y-maen is Welsh for 'Base of the stone' and there are legends that the same stone ends in Penmaen (English: Stone End) on the Gower Peninsula.

Bonymaen's standing stone

Overlooking Bon-y-maen on top of Kilvey Hill is the main TV transmitter for Swansea.

The local rugby team is Bonymaen RFC.

In 2017 over 200 new homes were planned for the ex-Morris Brothers bus works in Pentrechwyth (part of Bonymaen).[2]

Bonymaen was a Communities First area.

Bon-y-maen Beast

Between 19 November 2018 and 3 January 2019 there were a number of reported sightings from woodland walkers, an off-road motorcyclist, a farm worker and a council employee of a large black cat ; some reports estimating the animal around the size of a large dog whereas most reports suggesting it was definitely a "Black Panther", not unlike the Beast of Bodmin . Most sightings were in and around the woodland areas of Kilvey Hill although there had been a reported sighting on a unadopted lane behind Bonymaen Park and on land behind Bonymaen Fish Bar. The sightings coincided with a number of minor animal attacks on farmland on Kilvey Hill, including two attacks on a herd of grazing heffers, a Welsh Pony bring kept on a small holding at the base of Kilvey Hill and on a farm dog called Lucky. Although the injured animals had all suffered deep scratches, injuries that treating vets had suggested were inflicted by a large dog or possibly badgers, all animals fully recovered. There had also been a number of small mammal remains found in the woodland by walkers, although these could equally be attributed to foxes which are common to the area, or dogs. On 3 January 2019 all sightings ceased of the "Bonymaen Beast".


  1. ^ "Ward population 2011". Retrieved 13 April 2015.
  2. ^ Nino Williams (29 August 2017) "200 new homes could be built in part of Swansea", Wales Online. Retrieved 10 February 2018.