DIAMOND PRINTED PRODUCTS LIMITED Company number 05855448 · Monitor this company Active Overview People 7 Financial Control Documents Analysis Location Related Registered office Address2 Allied Business Centre, Coldharbour Lane, Harpenden, Hertfordshire, AL5 4UT PostcodeAL5 4UT Companies at this postcode 437 Average house price in AL5 4UT £682,000 (2 sales) Map