I am going to get a lot of shade for saying this, but..... All of what you said could be true, AND we may have built a lot of buildings (maybe too much lab space), and we need to catch our breath and let things settle in a bit. We definitely need more housing and hotels, but that does not necessarily mean 500-700 ft tall towers downtown.
In Minneapolis during this current cycle, we have had three 35-story towers constructed (one is a really nice RMSA condo, one is the Four Seasons), approximately a dozen 10-to 20-story towers, and a river of 5-story buildings over 1. That is in a metro of 4.5M people. Boston has been an embarrassment of riches comparatively.
+ Boston NIMBY-ism is a constant presence, and it has to be factored in early as you're going through zoning and design review. That adds a lot of upfront risk. We’ve seen large players like Scape step back entirely after essentially running full-speed into a wall. After announcing a $1BN investment in Boston housing, they pivoted to labs or paused after their residential projects were shredded by public comments, and eventually (recently) left the market altogether. At a recent Davis Square Neighborhood Council
informational meeting, meant to inform the public of the general development process, one comment sums it up: “I don’t care if a developer has to make money.” Even for projects that are well-intentioned and community-oriented, this is a tough attitude for a developer to contend with.
All of this happens after developers have already bought property, hired designers, and advanced schematic design, often with legal and financial teams already engaged. Who's going to back something so risky with their own money?
As noted, then there’s the layering of new requirements -
Passive House (Somerville), Net Zero (Boston), IDP, community benefits. While worthwhile goals, each adds cost by a few percent and complexity. Tariffs and unpredictable federal policies only compound the uncertainty, and contractors are starting to price that into bids.
Meanwhile, pressure is mounting on construction loans for the recent lab and luxury housing boom, and we're going to see more and more announcements of refinancing,
mortgage takeovers, defaults, etc. Convincing lenders over the next few years will be a challenge.
When you put all of that against current interest rates* and sky-high construction costs that are not going to come down, projects just don’t pencil right now.
*Marty Walsh was very fortunate to be mayor while money was essentially free to borrow. If he was mayor today, I don't think we'd be far off from where we are today.