GNBROS LTD Company number 15936678 · Monitor this company Active Overview People 1 Financial Control Charges Documents Analysis Location Related Registered office Address7 Maran Avenue, Welwyn, Hertfordshire, United Kingdom, AL6 9HS PostcodeAL6 9HS Companies at this postcode 8 Average house price in AL6 9HS £438,000 (14 sales) Map