The Boulder City Council is interested in the potential of the vacant, roughly 1-acre plot at 3303 Broadway as a housing site in the future. But the plan, dubbed “Iris & B” by the plot’s developer, Margaret Freund, is not going to be the vehicle for that housing. Freund’s pitch … was unanimously rejected by the Planning Board last month, consistent with the recommendation of city planning staff. On Tuesday, the City Council had a chance to rescue the project by calling it up for an additional review following the Planning Board decision. It declined that chance by a 7-2 vote, but agreed to consider a land-use change for the site later this month.