PPS 7 Addendum Safeguarding the Character of Established Residential Areas·Page 14·2.19
Requirements for Residential Extensions
Extensions must comply with Policy EXT 1 and meet specific criteria relating to design harmony, impact on neighbours, site density, and retention of amenity space. Extensions must harmonise with the existing dwelling, not harm adjoining properties' amenity or light, avoid overdevelopment, and preserve acceptable amenity space.
Any proposals involving extensions are required to be consistent with Policy EXT 1 set out in the PPS 7 addendum for achieving quality in relation to proposals for residential extensions and alterations (published in March 2008). In addition the Department will need to be satisfied that any extension will: • harmonise with the existing dwelling in scale, style and the use of materials; • not be detrimental to the amenities of adjoining properties, particularly in terms of privacy and their right to light; • not overdevelop the site in terms of mass or density, as this can contribute to the loss of character of existing residences; and • retain an acceptable proportion of amenity space to the built form.
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