Mayor Michelle Wu’s administration is using Boston Planning & Development Agency tools to offer time-limited housing tax abatements on previously approved projects, a turn that puts Chapter 121B (and related 121A-style) tax agreements back at the center of the city’s housing strategy. City Hall says the first four deals would unlock about 1,400 homes — including more than 180 income-restricted units — with roughly $31.5 million in temporary tax relief and no net revenue loss to the city.
The proposal lands as Wu continues long-running efforts to remake planning powers once concentrated in the BPDA, an agency she criticized as a city councilor and sought to curtail after becoming mayor. Local columnist Scott Van Voorhis and trade outlets have highlighted that tension: the administration is tapping BPDA board authority to negotiate abatements even as broader BPDA reform remains unfinished at the State House.
The four projects and the dollar figures
According to the city’s Sept. 15, 2026 announcement, the first tranche covers One Mystic Avenue in Charlestown (408 homes, 45 income-restricted), 22-24 Pratt Street in Allston (318 homes, 27 income-restricted), 83 Leo Birmingham Parkway in Brighton (333 homes, 52 income-restricted), and Allston Yards Building D in Allston (341 homes, 61 income-restricted). Combined, city materials say the projects would deliver at least 185 income-restricted units, more than $20 million in Inclusionary Development Policy funding, and an estimated 1,582 jobs if they move into construction.
Relief is described as about $31.5 million total, or roughly $22,500 per unit, contingent on construction starting within an agreed timeframe. Developers would keep paying at least today’s property tax level; the abatement would defer a portion of future tax increases as buildings rise and stabilize. Banker & Tradesman reported that taxes could be frozen at pre-construction value until occupancy, then ramp to full value over five or 10 years depending on the deal.
Chief of Planning Kairos Shen and Housing Chief Sheila Dillon have said roughly a dozen other large stalled projects are in talks, with a possible outer envelope near $100 million in abatements and about 4,000 units if later rounds proceed. Those figures are administration estimates, not signed contracts.
BPDA process and public comment
The BPDA Board was asked to authorize formal negotiations at its October meeting after a 30-day public comment period. Planning Department staff held a virtual public meeting on Oct. 7 about a possible 121B agreement for One Mystic Avenue; the project page set a comment window through Oct. 14 on tax relief that would leave the approved design unchanged. Similar outreach is planned for the Allston-Brighton sites.
Structurally, board authorization would let Assessing negotiate Chapter 121B agreements project by project. Trade coverage has sometimes referred to Chapter 121A tax agreements in the same debate; the city’s public materials for these four projects emphasize 121B-style abatements tied to previously BPDA-approved housing. Readers should treat the statutory label on each final agreement as controlling once documents are filed.
Council President Liz Breadon publicly backed the package, noting nearly 1,000 of the units would land in Allston-Brighton. Industry groups including A Better City and Housing Forward MA also endorsed moving stalled permits into construction amid high interest rates and elevated hard costs.
Why the BPDA angle matters
Van Voorhis’s reporting recalled Wu’s 2019 call to abolish the BPDA and later legislation to shift staff into a Planning Department while limiting the agency’s independent powers. Residential conversions and now new multifamily towers still rely on BPDA board votes for certain tax tools. That is a factual process point, not a judgment on motives: the same legal authority the mayor once sought to shrink is the vehicle for these abatements.
City officials say the alternative is leaving approved buildings on paper while the region’s housing shortage continues. Wu argued at a Greater Boston Chamber forum that rates have not eased as hoped after the administration rejected a similar idea in 2024 as too expensive. The city is also deploying a $110 million Housing Accelerator Fund and zoning updates in several neighborhoods.
Related Boston Report coverage includes Welcome Home Boston Passive House units on Norwell Street, the commercial-market snapshot in Boston office rents hitting records as law firms trade up, and the council’s separate debate over a proposed data center ban with an Oct. 19 hearing.
Critics and open questions
Banker & Tradesman reported that some housing advocates call the first-round dollars too small relative to the backlog of roughly 30,000 permitted-but-unbuilt units. The administration has held to income-restricted share requirements on most large projects and is discussing gap financing with union pension funds, Wu has said in public forums covered by the trade press.
Open questions for Oct. 14 and beyond include whether the BPDA Board authorizes all four negotiations, how Assessing writes clawbacks if groundbreaking slips, and whether later rounds expand beyond Allston, Brighton and Charlestown. Commenters on the One Mystic page were asked to weigh tax relief for financial viability, not design changes.
For now, the documented facts are these: four BPDA-approved projects totaling about 1,400 homes are first in line for roughly $31.5 million in temporary abatements; public comment on at least One Mystic runs through Oct. 14; and the Wu administration is using BPDA board authority to structure the deals while continuing separate planning reforms.