Not sure about the legalities of the situation… but if you have a resident who wants to help take care of common property, our EC would be stumping up the cost of the hose. Might be even easier for whoever looks after the grounds/gardens to have a tap plumbed closer to the garden & a shorter hose. Readily available hose reels typically only hold 30m of hose.
On the hose front… Our community garden does really well with 2x30m cheapie hoses spliced together with a connector. The Reject Shop & their ilk have hoses for about $12 a pop. They’ve lasted much longer than the no kink, fancy pants, $75 a pop ones we started out with which kept springing leaks.