The proposed dormer extension to the rear of the semi-detached dwelling, by reason of its scale and design, would have an over dominant and overbearing impact on the outlook from the neighbouring properties at Nos. 133 and 129 Harrowgate Drive, where it would be viewed from the relatively small gardens of these properties. For these reasons it is therefore considered that the proposal would result in a significant loss of amenity to Nos. 133 and 129 Harrowgate Drive which would be contrary to policies EV/1, H/17 and CS2 of the Development Plan and the Council's adopted Supplementary Planning guidance on Design.

It is the opinion of the local planning authority that the proposed hipped roof to gable, together with the dormer extension to the rear by reason of scale, massing and overall appearance would not be sympathetic or subservient in form to the existing dwelling. The resultant development would therefore appear out of character and result in a prominent and incongruous development within the street scene to the detriment of visual amenity. The proposed development would therefore be contrary to Policy CS2 of the Charnwood Local Plan Core Strategy (2011-2028) and saved Policies EV/1 and H/17 of the Borough of Charnwood Local Plan and the Design Supplementary Planning Document (2020) which seek, amongst other things, to ensure that development does not cause harm to the character and appearance of the area and remains compatible in design with the original dwelling. The proposal is also considered to be development of poor design that fails to improve the character and quality of the area and should therefore be refused in accordance with the National Planning Policy Framework (July 2021).