J&J ADVISORY LIMITED Company number 14423257 · Monitor this company Active Overview People 2 Financial Control Documents Analysis Location Related Registered office AddressFlat 2 Dorset House, 55 Brooke Avenue, Harrow, England, HA2 0NB PostcodeHA2 0NB Companies at this postcode 20 Average house price in HA2 0NB £498,000 (25 sales) Map