The community is bounded by the Rhymney River to the west, the A48(M) motorway to the south, and the Pound Hill road to the north and east.

[4] The Old Rectory, opposite the Cefn Mably Arms public house and the church, has its own Grade II listing.

[5] The pub opened in 1824 and, since 2017, an annual ceremony sees the vicar bless the beer, the public house and the village.

[citation needed] On 25 June 2018 the village became the first community in Wales to create its own fibre network, connecting homes and businesses to the Internet with fibre to the premises, giving each a connection speed of 1 Gbit/s, and became known as ‘The Fastest Village in Wales’.

On 19 November 2018 Michaelston-y-Fedw Internet CIC (MyFi, the community interest company set up to run the fibre broadband project in the village) was awarded the European Broadband Award for Innovative Models of Financing, Business and Investment.