PROTECTED STRUCTURE: Permission on Montague Lane at a mid-terrace, two storey mews building (129 sq. m) containing office and ancillary uses with vehicular access passageway all located to the rear of and within the curtilage of Clonmel House, No. 17 Harcourt Street, Dublin 2, a protected structure. Development to consist of conservation and improvement works, including dismantling and reconstruction of traditional pitched and hipped slate roof, plus removal of defective timbers and supplementing with new timbers and roof structures in steel including new columns 2 No. of which rise from new pad foundations, plus, removal of and blocking-up of window opening and lowering of blockwork at Montague Lane to form a new flat-roofed dormer window plus, external rendering and painting of lane wall, plus new flat roof dormer window to hipped-roof, plus remedial and renewal works to coping stones, parapet, valleys, and flashings, plus works to gutters and downpipes, replacement of 2 No. roof windows, conservation of 2 No. ocular windows, removal and relocation of soil and vent pipe, reconfiguring and removal and renewal of mechanical and electrical services including on mews wall facing Clonmel House, plus, removal of spiral staircase and stairwell, and blocking up doorway to match existing plus new stairwell, staircase, and new doorway to ground level store, provision of 2 No. W.C.'s, tea station and store at first floor, replacement of asbestos ceiling to passageway, levelling of timber floors, addition of thermal insulations and fire proofing, plus new wall and ceiling linings and interal finishes plus all associated works.