The Church of the Blessed Sacrament, Gorseinon was built in 1967 to a circular fan design by Robert Robinson in partnershipwith John Petts. Stained glass includes works by John Petts and Paul Quail.

It is a grade 2 listed building: 'Listed as an innovative church design which is a particularly articulate expression of Liturgical Movement principals, in its centralised planning and bold modernity, successfully integrating expressive, symbolic forms. A harmony of art and architecture is achieved, notably in the remarkable quality of the stained glass and fittings by John Petts.'

References:
Cadw listed buildings database
http://imagingthebible.llgc.org.uk/site/215