A project to restore a Ceredigion church, designed by the architect responsible for some of London's top landmarks, has been completed.
A service will be held to celebrate the restoration work
Repairs to lead-domed St Non's in Llanerchaeron, near Aberaeron, has been carried out with the help of a £77,000 heritage lottery grant.
It was designed by John Nash, who drew up plans for Marble Arch and Regent's Park and remodelled Buckingham Palace.
St Non's is thought to be the only domed church in Wales.
A service is being held at the church on Thursday to celebrate the "reinstatement of the finely crafted lead covered dome".
The original lead was removed in the late 1960s and replaced with fibreglass, but it split causing the dome to leak and floors inside the church started to rot.
As part of the renovation, the building has also been rewired and a new heating and lighting system has been installed.
Jennifer Stewart, manager for the Heritage Lottery Fund in Wales, said: "The Heritage Lottery Fund recognises all places of worship as an important part of our shared heritage.
"It is really important to invest in these magnificent buildings so that we can learn about the role that they have played in our past and the often changing roles that they have in the present."
Additional funding for the church restoration has come from Ceredigion Council.
The son of a Welshman, John Nash was responsible for designing much of the layout of Regency London in the 19th Century.
One of his most significant projects saw him remodel Buckingham House into Buckingham Palace in 1825.
He also designed Llanerchaeron mansion, near St Non's Church, which is now owned by the National Trust.