North Tawton 600 ft (185m) east-west by 390 ft (120m), and was located adjoining the Roman road between "Isca Dumnoniorum" (Exeter) and Okehampton. In addition, the site of a temporary marching camp has been identified half a mile to the north. By the time of the Domesday survey (1086), there were six farm / manor holdings in what is now North Tawton Parish, including that of Tawton which was the forerunner of the town we know today. St Peter's Church is first recorded in 1257. Only the tower of the present building dates from that time, with the rest being mostly 14th
Isca Augusta and timber ramparts of the fortress were strengthened by the addition of a stone revetment at the front. This "composite" rampart consisted of a stone wall 5 to 5½ feet thick, backed by a clay bank and fronted by a single ditch By 120 AD, detachments or vexillations of the legion were needed elsewhere in the province and Isca became more of a military base than a garrison. However, it is thought that each cohort still maintained a presence at the fortress. When Septimius Severus seized power in the 190s, he had Isca refurbished and the legion were in residence