Flat 1, 177 Northchurch Road, London, N1 3NT
Replacement of the existing single-glazed sash timber windows with double-glazed timber sash windows, the insertion of a new conservation roof light in the butterfly roof, the insertion of a new fixed timber window at 3rd floor level, the removal of the existing boiler flue on the rear elevation and the insertion of a new boiler flue in the butterfly roof.