Boston, MA Multifamily Market Report June 2026
Boston Multifamily Market — At a Glance
- Average Asking Rent: $2,999/unit
- Rent Growth (YoY): +1.1%
- Overall Vacancy Rate: 6.1% (200bps below national avg)
- YTD Deliveries: 2,451 units
- YTD Absorption: 3,667 units
- Units Under Construction: 13,321
- 12-Month Sales Volume: $4.1 billion
- Average Price Per Unit: $385,272
- Average Cap Rate: 5.1%
What Is Happening in the Boston Multifamily Market Right Now?
Boston’s multifamily market is outperforming the national average across nearly every key metric as of June 2026. Asking rents have risen to $2,999 per unit, a 1.1% year-over-year increase, while vacancy has tightened to 6.1%, roughly 220 basis points below the U.S. national average of 8.3%. Year-to-date absorption of 3,667 units is outpacing deliveries of 2,451 units, which is the primary driver of tightening fundamentals.
The market is working through the tail end of a heavy delivery cycle, and with the new construction pipeline declining sharply, supply pressure is expected to moderate further through 2026 and into 2027.
Boston Multifamily Vacancy Rate by Class (June 2026)
| Asset Class | Vacancy Rate | Asking Rent | YTD Absorption | Units Under Construction |
|---|---|---|---|---|
| Class A | 8.0% | $3,457 | 1,419 units | 8,324 |
| Class B | 5.7% | $2,709 | 330 units | 4,989 |
| Class C | 3.6% | $2,222 | −15 units | 8 |
Class B and C assets maintain the tightest vacancy profiles in the market. Class A vacancy has improved from 10.9% in March 2026 to 8.0% as of June 2026, reflecting absorption of the recent Class A delivery wave.
Boston Multifamily Submarket Rents and Vacancy (June 2026)
| Submarket | Vacancy | Asking Rent | Rent Growth (YoY) | Units Under Construction |
|---|---|---|---|---|
| Intown Boston | 5.6% | $3,840 | +2.5% | 1,003 |
| Fenway / Brookline / Brighton | 5.2% | $3,676 | +2.0% | 1,448 |
| Cambridge / Somerville | 4.9% | $3,635 | +3.0% | 3,427 |
| Chelsea / Revere / Charlestown | 8.6% | $2,911 | +1.0% | 1,337 |
| East Middlesex County | 6.4% | $2,927 | −0.1% | 469 |
| Waltham / Newton / Lexington | 6.9% | $2,876 | −0.7% | 168 |
| Quincy / Plymouth County | 6.1% | $2,663 | +0.4% | 1,048 |
| Marlborough / Foxborough | 6.0% | $2,626 | +0.2% | 445 |
| Southwest Boston | 8.0% | $2,748 | −1.5% | 762 |
| Lowell | 5.5% | $2,415 | +0.3% | 1,346 |
| Essex County | 4.6% | $2,442 | +1.8% | 466 |
Top-performing submarket by rent growth: Cambridge / Somerville at +3.0%
Tightest vacancy: Essex County at 4.6%
Highest asking rents: Intown Boston at $3,840/unit
Largest supply pipeline: Cambridge / Somerville at 3,427 units under construction
Boston Multifamily Supply and Construction Pipeline
The Boston supply pipeline has moderated considerably from its recent peak:
- Units currently under construction: 13,321 (down ~2,000 from one year ago)
- As a share of inventory: 4.4%, below the 3-year average of 5.1%
- Q1 2026 construction starts: 1,376 units
- Q2 2026 construction starts: 177 units — the lowest level since 2016
- Last project exceeding 2,000 units: Q4 2024
Class A properties account for 77% of recent deliveries and 61% of the active development pipeline. Class B makes up most of the remaining 39%. Submarkets with the most units currently under construction include Somerville / Charlestown, Everett, Chelmsford / Tyngsborough, and Quincy / Milton / Randolph, which together have delivered nearly 30% of new inventory.
Top 10 Largest Projects Under Construction in Boston (June 2026)
| Rank | Address | Units | City |
|---|---|---|---|
| 1 | 55 Bunker Hill St | 2,669 | Charlestown, MA |
| 2 | 550 King St | 1,089 | Littleton, MA |
| 3 | 776 Summer St | 473 | Boston, MA |
| 4 | 6 Akira Way | 440 | Londonderry, NH |
| 5 | 121 Broadway St | 439 | Cambridge, MA |
| 6 | 252–264 Huntington Ave | 432 | Boston, MA |
| 7 | 201 Mill Rd | 416 | Everett, MA |
| 8 | 35–41 Merrimack St | 394 | Haverhill, MA |
| 9 | 100 Durgin Ln | 360 | Portsmouth, NH |
| 10 | 4000 Mystic Valley Pkwy | 350 | Medford, MA |
Boston Multifamily Investment Sales (2026 YTD)
Boston multifamily investment sales have been on a steady recovery trajectory since the rate-driven slowdown of 2023 and early 2024. The trailing 12-month volume of $4.1 billion across 15,987 units reflects a market that has largely completed its price discovery process — buyers and sellers have found a workable spread, even if pricing hasn’t recovered to the cycle peak of $471,031 per unit recorded in Q2 2023. At $385,272 per unit today, the market is roughly 18% off that peak, which has been enough to bring buyers back to the table in meaningful volume.
Year-to-date through mid-June 2026, $1.35 billion has closed — $1.03 billion in Q1 alone, with an additional $324 million transacting in Q2 — suggesting Q1 was a particularly active quarter as buyers moved ahead of anticipated rate uncertainty. The recent sales log reinforces the breadth of buyer demand: transactions range from small private deals like the 12-unit sale at 17 Monmouth Street in Somerville ($2.45M) to institutional trades like the 258-unit Allston/Brighton Portfolio ($90.2M) and The Lofts at Atlantic Wharf in Boston (86 units, $55.5M). Arx Urban appears multiple times as a buyer across different submarkets and price points, signaling at least one well-capitalized platform is actively consolidating. Cap rates averaging 5.1% over the trailing year — stable rather than compressing or expanding — suggest the market has found an equilibrium rather than entering a new aggressive appreciation phase, which is arguably a healthier signal for sustained transaction volume going forward.
Private capital has increased its share of investment activity from 46% to nearly 55% over the past 12 months, reflecting renewed conviction from smaller and mid-sized buyers. Private capital metrics for the 10–100 unit segment (YTD 2026):
| Metric | Value |
|---|---|
| Sales volume | $574M |
| Price per unit | $334K |
| Cap rate | 6.5% |
Key Policy and Regulatory Update: Rent Control Off the Ballot
The Massachusetts Supreme Judicial Court ruled the proposed statewide rent control ballot initiative unconstitutional. It will not appear on the November 2026 ballot. This removes a significant regulatory uncertainty that had been overhanging the market and is broadly positive for investment sentiment across all asset classes in the Greater Boston area.
Office-to-Residential Conversions: An Active Theme in Downtown Boston
Local developers remain active on office-to-residential conversion proposals in downtown Boston, with new projects entering the pipeline. This trend is consistent with broader national momentum in adaptive reuse and represents a meaningful additional supply pathway that bypasses traditional ground-up development timelines and entitlement risk.
Summary: Is Boston Multifamily a Good Investment in 2026?
Boston multifamily continues to demonstrate above-average fundamentals: absorption is exceeding deliveries, vacancy is tightening, rent control has been eliminated as a risk, and private capital is rotating in at increasing volume. The primary headwinds are elevated borrowing costs — made more uncertain by a hawkish Fed shift under Warsh — and the potential for wider mortgage spreads if the Fed exits MBS holdings.
For owners, the near-term rate relief thesis has shifted: any meaningful rate reduction is more likely to come from market forces (lower Treasury yields driven by sustained peace and slower growth) than from Fed action. For buyers, the current pricing at $385,272 per unit — a 93% premium to the national average — reflects genuine market conviction in Boston’s long-term demand fundamentals, including a low unemployment rate (4.8%), high median household income ($121,627), and a structurally constrained supply environment.
