Boston Builds Up While Other Cities Stumble: How Hub's Housing Push Stacks Up Globally

Boston permitted 6,400 new housing units in 2025, its highest single-year total in three decades, yet the median asking rent for a two-bedroom apartment in the city hit $3,450 in June — a figure that tells you everything about the gap between construction ambition and affordability reality. Mayor Michelle Wu's administration wants to close that gap faster than any comparable mid-sized city in the American Northeast, and the international record suggests Boston is ahead of some peers and badly behind others.

The comparison matters right now because the Wu administration's PLAN: Mattapan and a parallel rezoning push in Dorchester's Glover's Corner district are both moving toward Boston Planning Department votes this fall. Those two initiatives alone could unlock sites for roughly 3,000 units on corridors that have sat underbuilt for a generation. City officials are watching what worked and what didn't in cities from Vienna to Singapore as they finalize the details.

Where Boston Leads — and Where It Lags

Vienna's model gets cited constantly in housing-wonk circles, and for good reason: the Austrian capital keeps about 60 percent of its residents in subsidized or cost-controlled housing, a legacy of nearly a century of municipal construction. Boston has no equivalent. What the city does have is the Inclusionary Development Policy, which requires any project with ten or more units to set aside 13 percent as income-restricted — a floor, not a ceiling, and one that critics at the Homes for All Massachusetts coalition argue is too low to matter at scale. Singapore's Housing Development Board, which houses roughly 80 percent of the population in state-built flats, is an even sharper contrast, though one that requires a level of state ownership that Massachusetts law essentially forecloses.

The closer comparison is Amsterdam, which uses a ground-lease system to keep land costs out of the development equation. Boston tried something conceptually similar with the city-owned Bartlett Place site in Roxbury, where the Boston Planning and Development Agency structured a land disposition that kept affordability covenants in place for 99 years. The Bartlett project — 320 units, roughly 100 of them income-restricted — broke ground in 2023. It is one data point, not a system.

London offers a cautionary tale. The Greater London Authority spent the better part of the 2010s chasing density targets through tower approvals in places like Nine Elms and Stratford, only to watch developers sit on permissions rather than build. Boston's permitting pipeline has a similar hoarding problem: the BPDA reported in March 2026 that approximately 18,000 units had received permits or approvals but had not broken ground, a backlog driven partly by financing gaps and partly by construction costs that have climbed 34 percent since 2020.

The Jamaica Plain Test Case

On Centre Street in Jamaica Plain, a stretch between the Stonybrook and Green Street Orange Line stations has become something of a live experiment in whether transit-oriented upzoning actually produces housing without displacing the people already there. The Wu administration rezoned that corridor for six-story mixed-use buildings in late 2024. Seven projects totaling 410 units have since filed for permits. Three have broken ground. The MBTA's improving Orange Line reliability — on-time performance hit 91 percent in May 2026 after the 2022 shutdown and subsequent repair program — is part of the pitch to developers that the location will actually attract tenants willing to go car-free.

Seoul's experience rezoning transit corridors around its metro stations in the early 2010s saw similar early momentum followed by a slowdown when land assembly proved harder than planners expected. Boston's advantage is that the city controls more publicly owned parcels along the Orange Line than Seoul did along comparable routes, giving the BPDA direct leverage over project timelines.

The fall rezoning votes on Mattapan and Glover's Corner will be the real test of whether Boston's approach hardens into a replicable system or stays a collection of one-off deals. Developers, community land trust advocates at Dudley Street Neighborhood Initiative, and MBTA planners are all watching the same calendar. The decisions made between now and December will shape who can afford to live inside Route 128 for the next twenty years.