Local heritage lists are usually maintained by the relevant
local planning authority, often with input from community organisations such as
civic societies and other interested local groups. There is often a process of public nomination, and in this way local heritage lists can be considered to take a democratic approach to the identification and celebration of heritage. Research conducted by
Historic England estimates that around 70% of local planning authorities in England have one or more local heritage list, although some of these may be out-of-date. In addition, some local heritage lists cover only part or parts of a local planning authority area, for instance because they were developed as part of a
neighbourhood plan or because the boundaries of the local authority have changed. There are other ways of identifying NDHAs, including through decision making on planning applications, through developing
neighbourhood plans, and in the process of designating
conservation areas. ==Notes==