SECRETSANDWICH LTD Company number 13149553 · Monitor this company Active Overview People 1 Financial Control Documents Analysis Location Related Registered office AddressGround Floor Flat Waldo House, Trenmar Gardens, London, England, NW10 6BD PostcodeNW10 6BD Companies at this postcode 5 Average house price in NW10 6BD £438,000 (6 sales) Map