Permission for retention of development is sought for alterations to previously granted planning permissions register reference numbers D21A/0719, D21B/0438 and D21B/0458. retention works comprise: A 24 sq.m increase in external floor area of the ground floor kitchen and dining area extension. Alterations to the front elevation comprising: an increase in the sliding patio doors to a 6m opening, changing the ground floor extension external finish from brick to timber cladding, alteration to entrance porch detail and removal of obscured glass to the first floor master bedroom bathroom to clear glass. Alterations to the side elevation (north eastern elevation) comprising: Omission of all ground floor windows and doors facing towards Dundrum Road and omission of the first floor master bedroom window facing towards Dundrum Road. Alterations to the rear elevation comprising: relocation of the ground floor utility room wall and window and alterations to the first floor bathroom walls. Increase in the external area of the rear ground floor utility room by 1.2 sq.m. Increase in the external area of the first floor bathroom by 1.3 sq.m. Installation of Velux roof light in the,master bedroom roof, the first floor bathroom, the attic and 1 number rooflight in the kitchen flat roof. Construction of a 2m high boundary wall along the north eastern boundary to finish in line with the new ground floor kitchen and dining room building line and associated landscaping and site development works.