But where are the people who are filling these luxury condos coming from?
They can't all be kids moving from their parent's house looking for there first place or people that just landed a job in Boston. They must be vacating homes and apartment somewhere in or around the city. Maybe those unit were 'luxury' back in the day but now they can't compete with these new units and will be priced accordingly? I think that is how the theory goes.
Unfortunately, the theory you are proposing is too focused on one demographic.
Who are the people filling these luxury condos coming from?
- Foreign investors buying luxury housing as investments. They have a negative impact on housing prices in Boston as they do not use the house/condo as living space but as investments.
- Foreign buyers who are buying or renting these units out for their kids to attend a US university.
- Young professionals, as you have mentioned, who are moving out of their parents house to a place of their own.
- Wealthier families who like you said, are moving from and around the city. However, of course, this migration is not restricted to just those in and around the city but cities and towns further out. This benefits the cities and towns they are departing from, not necessarily metro Boston.
- Wealthier family who either buys the condo for vacationing purposes or renting them out.
In addition, older buildings don't necessarily lose their value. Condos, apartments, etc can always be renovated or refurbished or modernized to keep up with luxury apartments and condos prices. In addition, luxury condos and apartments tend to increase the surrounding land value (i.e. gentrify) because of the amenities it bring, whether they be displacing the poorer population, providing retails on the ground floor, or maintaining streets.