The developer of One Water Street, PMC Property Group, took the Kenney administration by surprise recently when it asked to be released from an inclusionary housing deal that it cut with the city in 2014. In exchange for a promise to incorporate the below-market rentals into the 250-unit building, the city gave PMC a 48-foot height bonus, allowing the developer to add nearly five floors - and 30 full-priced units - to the design.