Historic England
not to be confused with British History Online
Historic England are the organisation that holds the records for listed buildings, and other historical information, in the UK. British Hostory Online is a different website.
My primary interest in the Historic England website is the listing of Listed Buildings. While the note on their pages says that the information of the listings is from a "legacy" system they are not specific. My assumpsion is that the listing text is public domain.
Historic England is laregly funded by the Department for Digital, Culture, Media and Sport.
Aerial Photo Explorer
This seems to be a newish venture on Historic England and now features on their home page. I was interested as there are some aerial photographs of Belchamp Walter
Attribution
In my quest to make sure that I give the appropriate attribution and that I don't violate too many copyrights, I started to look at the Historic England's policies in more depth.
The Historic England Website
The is https://historicengland.org.uk/
The listings for the Listed Buildings featured on this website are taken from the Historic England website. These have been reformatted and put into context with the other buildings and history of the village of Belchamp Walter. The Historic England website does not make these connections.
The historical and heritage accounts on the Historic England website listings seem to be based on anecdotal reports from the owners of the properties at the time of their listing.