Is the 37 North Beacon development a done deal? I haven’t been able to confirm this, but there is talk that proponent Sebastian Mariscal’s option on the property has expired. A new developer may be in the mix. Either way, this site needs a better designed building that is less dense. The city’s Guest Street planning area, which encompasses this site and big swath of the neighborhood, calls for guidelines for height and size that this proposal ignores.