BLACKWELL SECURITY LTD Company number 11453752 · Monitor this company Dissolved Overview People 1 Control Documents Analysis Location Related Registered office AddressBLACKWELL HOUSE, 4 BRIDGE ROAD, DARLINGTON, DURHAM, UNITED KINGDOM, DL3 8TJ PostcodeDL3 8TJ Companies at this postcode 4 Average house price in DL3 8TJ £408,000 (9 sales) Map