OPALION LIMITED Company number 01574983 · Monitor this company Active Overview People 8 Financial Control Charges Documents Analysis Location Related Registered office AddressUnit 1 Ashville Trading Estate, Royston Road, Baldock, Hertfordshire, SG7 6NN PostcodeSG7 6NN Companies at this postcode 11 Average house price in SG7 6NN £892,000 (1 sales) Map