Belfast·SPG004 Residential Extensions and Alterations·Page 51·4.3.50
Impact on neighbouring properties from extensions and alterations
Extensions, alterations, high-level decking, patios, roof-terraces and balconies must be designed to avoid overlooking and minimise noise and general disturbance to neighbouring properties.
An extension or alteration such as high-level decking or patios and roof-terraces or balconies can all increase the level of noise and general disturbance experienced by residents of neighbouring properties and will be subject to particular scrutiny.
Source — /Users/richardhill/Documents/planning-arch-project/data/documents/belfast/SPG004 Residential Extensions and Alterations.pdf