The biggest worries are the insecure location for this wood-roof steel-shuttered on the present children's playground; and the further use of St John's Walk as an access road, now for commercial shop traffic in addition to the members-only bowls club and the maintenance crews which frequently park there, creating unnecessary "pinch points" on the busy cycleway.
It goes to the national government office in Cambridge next. See http://www.thewalks.co.uk/planning.html#goeast