I hope I am not mistaken, but this building looks very much like the old Chepstow Cottage Hospital. I lived and worked at Sedbury in the 1970's and I am sure this is where we used to bring our youngsters (from SPS) to be treated.
My great granduncle and aunt managed the Bush Hotel - certainly in 1901. He was James Price, born in Ifton (Ilton?) Monmouthshire c. 1862 and his wife, Mary Pearce born in the same place C 1865.
My Grandfather, Reginald Cornish, is standing in front of the car (waiting to embark) in the centre of the photo. He was County Engineer for Monmouthshire. I still live in Chepstow and the buildings to the top and left were demolished after the Severn Bridge was built directly above the slip way.