Atwick belonged to Morcar in 1066, and to Drew de Bevrere in 1086 (VCH ER vii, 207). In DB, Hornsea, which included Atwick, had a church and a priest (VCH ER vii, 265), although this documented church was presumably located at Hornsea. About 1130, Everard de Ros gave Atwick church to Bridlington priory. In 1295 the dedication was to St Peter, but it had changed to St Lawrence by 1461 (VCH ER vii, 205, 211). The medieval church had a W tower, nave, chancel and S porch. It is illustrated in Allen 1831, iv, 220-1 and Poulson 1840, 169-70.