Nyandarua County is a County in the former Central Province of Kenya. Its capital and largest town is Ol Kalou.Formerly the capital was Nyahururu, which is now part of the Laikipia County. Nyandarua County has population of 596,268 [and an area of 3,304 km² Requirements Diploma in Building Construction, Building Technology, or Civil Engineering Construction Technology. Registered and licensed by TVETA; Trainer/Instructor Certificate. At least 2 years' practical experience in building construction or masonry.