HTHT_businessplan_211204 – This link will take you to a business plan drawn up c2004 by a group which incorporated itself as the Hornsey Town Hall Charitable Trust. This group went to a lot of trouble to prepare documents and to carry out surveys, and to have estimates drawn up for the refurbishment and future (as it was then) use of Hornsey Town Hall.
Much of the work they did is of high quality, but the group never achieved the sort of working relationship with Haringey that would have been needed to put this plan into action.
There are a lot of lessons to be learned from this previous attempt. This is a link to the Hornsey Town Hall Trust website which also seems to be on the point of becoming defunct.