St Mihangel's became the chapel for the nearby Royal Air Force base in 1998, after the Church in Wales had ceased using it for services.

It was then extended by dismantling and reassembling another Anglesey church, St Enghenedl's, at the west end of the building.

St Mihangel's Church is set within a gated and walled churchyard at the side of the road in the village of Llanfihangel yn Nhowyn in Anglesey, north Wales.

[7] The present building is rectangular, using rubble masonry dressed with freestone; the roof uses slates and stone copings.

[8] The windows in the 19th-century part are topped with trefoils (a stonework pattern of three overlapping circles) and set into square frames.

[9][10] Karen Newby also designed a window dedicated in 2001 to mark the work of 208 Squadron at RAF Valley.

[3] A survey of church plate within the Bangor diocese in 1906 recorded a chalice and paten made of Britannia metal (a pewter alloy), and an electro-plated set of communion vessels.

[13] St Mihangel's has national recognition and statutory protection from unauthorised alteration as it has been designated a Grade II listed building – the lowest of the three grades of listing, designating "buildings of special interest, which warrant every effort being made to preserve them".