PPS 21 Sustainable Development in the Countryside·Page 43·5.77
Cumulative Impact Assessment on Rural Character
Individual buildings with minimal impact may cumulatively result in detrimental build-up of development to rural character when considered together with other existing and approved buildings and their ancillary features.
On other occasions a new building may have little impact by itself. However, when taken cumulatively with other existing and approved buildings and their ancillary features in the vicinity, it could result in a build up of development detrimental to the rural character of that area.
Source — /Users/richardhill/Documents/planning-arch-project/data/documents/regional/PPS 21 - Sustainable Development in the Countryside.pdf