Yes, the Oviston area in the Walter Sisulu Local Municipality is surveyed. Oviston is a township that was approved as a Deduction Plan (No. 10062) in 1978 by the Surveyor General: Cape Town (KaapStad), with SG No. 5642/1978.
According to the records of the King William's Town Deeds Office -
(a) There are 319 properties registered.
(b) (i) 296 privately owned
(ii) 23 state owned
(c) 5 - Provincial Government of the Eastern Cape
2 - National Government of the Republic of South Africa
16 - Walter Sisulu Local Municipality