This webpage would include details of the referendum, if approved by Westminster City Council.

Useful links

1.  Neighbourhood Planning Guidance 

https://www.gov.uk/guidance/neighbourhood-planning--2#the-neighbourhood-planning-referendum

2.  Referendum on Hampstead Neighbourhood Plan

http://www.hampsteadforum.org

https://camden.gov.uk/ccm/content/environment/planning-and-built-environment/two/planning-policy/neighbourhood-planning/hampstead-neighbourhood-forum/