 On the eastern side of The Crescent , a Georgian terrace was erected in 1807 . Built of " pinkish @-@ brown " brick , each house is of three @-@ storeys plus a basement , and is two windows across . The houses are split by plain pilasters and topped with hipped slate roofs . While the first and second storey windows are rectangular , those on the ground floor are round @-@ headed , as are the doorways . The first floor windows have small , circular segmental balconies . A variety of six- and eight @-@ panel doors are reached by climbing a small flight of steps , and the entire terrace is fronted with railings . This terrace forms two separate listed building designations from Historic England ; numbers 1 – 11 and 15 – 20 , both of which are Grade II * listed . 
