Officially, Britain's Chancellor of the Exchequer resides at number 11 on this street
[DOC] [TLE] George Osborne: Chancellor splashes out 30,000 on No.11 ... [PAR] Feb 3, 2012 ... 11 Downing Street is a Grade I-listed building and as such the Government is ... 
the flat in 10 Downing St currently, occupied by the Chancellor of the Exchequer.