We want to build a tree house in our communal gardens which are run by a committee. We asked them and they gave the ahead (this is minuted). We had plans drawn up and the person who is building it (who has experience) bought the wood. We showed the plans to the committee but they now say no, we can't do it as if there was an accident we could be liable.
The gardens are enclosed with high gates and hedge - entrance by key only although obviously people do get in.
We would put up a sign saying it is used at own risk.
Are the committee being reasonable?