Metro area in Massachusetts, New Hampshire · part of the Boston-Worcester-Providence, MA-RI-NH combined area
Boston-Cambridge-Newton, MA-NH
The Boston-Cambridge-Newton metro area authorized 10,072 new housing units in 2025, the largest total of the 17 metro areas based in the New England states. Recent building has not returned to boom levels: the 2021–2025 yearly average was 20% below the 2004–2006 average, the largest recovery by this measure among the 6 metro areas based in Massachusetts. Buildings with five or more units accounted for 62% of the units authorized in 2021–2025, the third-highest share among the 17 metro areas based in the New England states.
Single-family2–4 units5+ units
Its 2025 total reached 58% of the 2005 high, the closest to a series peak among the 6 metro areas based in Massachusetts.
Houses or apartments
The closest match in building mix among the 386 other metro areas is Boulder (62% in five-plus buildings). That share has risen sharply since 2004–2006, when it stood at 44%. Duplexes to fourplexes are unusually common here: 5.6% of units, against 3.5% nationally. Units in five-plus buildings peaked in 2021 (10,913), single-family houses in 2005 (8,318).
Where in the metro
Middlesex County accounted for 28% of the metro area's units in 2021–2025, Suffolk County for 24%. The part in New Hampshire supplied 15%.
Relative to population
With 5,034,221 residents in July 2025, Boston authorized 2.5 units per 1,000 residents a year in 2021–2025, under the national 4.7. The metro areas with the nearest rates are Allentown (2.5) and Manhattan (2.5).
The wider Boston-Worcester-Providence region
The Census Bureau groups Boston with 4 neighboring metro areas in the Boston-Worcester-Providence, MA-RI-NH combined area. Metro areas in it authorized 18,406 units a year in 2021–2025 (micropolitan parts not counted); Boston accounted for 68%. The others, with their yearly averages: Providence (2,365), Worcester (1,886), Manchester (1,014), Barnstable Town (675).
Boom, bust and since
Its peak year is shared by 105 other metro areas, among them Tampa, Orlando, Baltimore. Annual permits fell from 17,442 during the mid-2000s boom to 5,476 in 2009, a drop of 69%. The nearest bust profile in the New England states was Springfield, MA's (70%). From 2024 to 2025 the count fell 10%.
Busiest permit offices
Across the metro area, 197 permit offices authorized new housing in 2021–2025. The busiest was Boston, with 13,394 units or 22% of the total, followed by Plymouth town with 2,894. Among the three largest, Cambridge put 92% of its units in five-plus buildings, Plymouth town 45%.
Share of the units authorized in the metro area, 2021–2025.
Similar in size
| Metro area | 2004–2025 | 2025 units | Per 1,000 a year | 5+ share |
|---|---|---|---|---|
| Phoenix-Mesa-Chandler, AZ | 39,699 | 9.0 | 36% | |
| Boston-Cambridge-Newton, MA-NH | 10,072 | 2.5 | 62% | |
| Riverside-San Bernardino-Ontario, CA | 15,937 | 3.6 | 28% | |
| San Francisco-Oakland-Fremont, CA | 7,750 | 2.0 | 62% | |
| Detroit-Warren-Dearborn, MI | 8,805 | 1.8 | 32% |
Rates and shares: 2021–2025.
Every yearly figure behind the chart, split by building size: yearly-units.csv. State view: Massachusetts. Counting rules.