Mass dot steam plant parcel is currently in planning- the previous renders were 600' range- room for 3 buildings minimum, at least one has a strong possibility of being "tall", city hall, aquarium garage, dalton garage, the other garage on Dalton behind the Hilton, Westland Ave garage, 222 Stuart st cant go tall but will probably go at some point, Volpe transportation site (not Boston and not gonna happen but fug it), columbus center is a possibility along with the 7 other parcels that could easily fit 11 buildings total, Edward Brooke building has had some ideas thrown around and is only a matter of time, 51 high st, Christian Science had a 3rd tower proposed that is not being built- future expansion possibility, parking lot next to the armory on Arlington, not to mention any number of the horse shit built between China Town and DTX, the parking lot on Merrimack st next to the GCG towers, the ginormous parking lot next to the tracks at North Station. All are reasonable especially when space gets tight. Thats enough space for like 25 600 ft tall towers- obviously not going to happen but any single parcel could.
Once "we run out of room" Ill be happy to see a few eye sores blown up and rebuilt notably the fiduciary trust building, Hyatt regency, Tufts is garbage would not shed a tear to see that thing demolished, The Revere sucks- wouldn't go tall but don't care, suffolk county jail will undoubtable be moved once the west end is built up and that space becomes must have real estate (3-4 buildings can fit there), tremont on the common blows- wont go tall but necessary, (the entire west end take 2) and the list goes on and on and on. Theres plenty of room. We are not going to run out of room in our life times especially with the red tape and nimbys dragging ass, and when we do they will just knock down some trash and build there.