SDB SIGNALLING LIMITED Company number 10743346 · Monitor this company Active Overview People 1 Financial Control Documents Analysis Location Related Registered office AddressFlat 4, 2 Cliff Road, Flat 4, 2 Cliff Road, Harwich, Essex, England, CO12 3PP PostcodeCO12 3PP Companies at this postcode 14 Average house price in CO12 3PP £249,000 (43 sales) Map