Belfast·SPG005 Placemaking and Urban Design·Page 45·4.10.2
Safeguarding daylight and sunlight
Developments must protect daylight and sunlight access to existing and nearby buildings, as inadequate daylight and sunlight can affect privacy, security, enclosure, and microclimates, particularly for residential developments.
Safeguarding daylight and sunlight within existing and nearby buildings is essential in creating quality internal and external spaces and should be carefully considered from the outset of the design process. This is of particular importance in the case of residential developments. Inadequate access to daylight and sunlight can cause issues affecting levels of privacy, security, and enclosure, and can also impact microclimates surroundings development.
Source — /Users/richardhill/Documents/planning-arch-project/data/documents/belfast/SPG005 Placemaking and Urban Design.pdf