HARTMANN SINGLETON LIMITED Company number 05304901 · Monitor this company Active Overview People 6 Financial Control Charges Documents Analysis Location Related Registered office Address15, The Stonebow Thornton Le Beans, Northallerton, England, DL6 3SR PostcodeDL6 3SR Companies at this postcode 4 Average house price in DL6 3SR £486,000 (14 sales) Map