Boston 4plexes: Buy a Fourplex and House Hack in Boston
Boston is the biggest fourplex market in New England, and its numbers explain both the opportunity and the discipline it demands: about 672,973 people, a median household income of $97,791, and a typical home value of $761,236. Buying well here means underwriting one building at a time, not betting on the city as a whole.
Boston by the Numbers
Boston, the Massachusetts capital, holds about 672,973 people (Census Vintage 2025), earns a median household income of $97,791, and carries a typical home value of $761,236. Those three figures set the frame: high incomes and high values, with rents that trail values more than in most cities on this list.
| Population (Census Vintage 2025, July 1, 2025) | 672,973 |
|---|---|
| State capital | this city |
| Median household income (ACS 2024 1-year, B19013) | $97,791 |
| Households earning under $50,000 (ACS 2024 1-year, B19001) | 29.3% |
| Households earning $50,000 to $99,999 (ACS 2024 1-year, B19001) | 21.3% |
| Households earning $100,000 to $199,999 (ACS 2024 1-year, B19001) | 28.7% |
| Households earning $200,000 or more (ACS 2024 1-year, B19001) | 20.6% |
| Median gross rent (ACS 2024 1-year, B25064) | $2,196 per month |
| Median earnings, all workers 16 and older (ACS 2024 1-year, B20017) | $58,678 |
| Typical home value (ZHVI, September 2026) | $761,236 |
Do the rent-to-price arithmetic before falling for a brownstone or a triple-decker: twelve months at the $2,196 median gross rent comes to 3.46% of the $761,236 typical home value. Read it as a rough gauge of how rents stack up against prices in Boston, not as income, since taxes, maintenance, vacancies, and management all come out first.
Sources: U.S. Census Bureau, American Community Survey 2024 1-year estimates (tables B19001, B25064, B20017); Zillow Research ZHVI, September 2026.
Buying a 4plex in Boston
In Boston, the building stock does much of the talking. Three-deckers and older brick walk-ups dominate the small-multifamily market, and their age shows up in the inspection report: knob-and-tube remnants, aging boilers, lead paint compliance, and shared systems that serve all three tenant units plus yours. Price the renovation before you price the offer, and get a contractor who has actually worked on Boston triple-deckers to walk the property with you.
Location within the city changes the deal more than the citywide averages suggest. A fourplex near a T stop, a hospital cluster, or a university draws a deeper tenant pool than one a long bus ride from work, and that depth is what keeps vacancies short. Check the walk to transit, the parking situation, and whether the unit mix (studios versus two-bedrooms) matches who actually rents in that neighborhood.
Buyer Help and Loans in Boston
Boston prices push many buyers toward the top of loan limits, so the lender conversation matters as much as the property search. Ask each lender which programs on the Loan Types page they close for 2-4 unit owner-occupied purchases in Massachusetts, and how their overlays treat older buildings, condo-converted stock, and rental income from the other units.
A side-by-side comparison is worth the extra appointment: FHA, conventional, and VA (if you are eligible) can produce very different monthly payments on the same Boston fourplex, especially once mortgage insurance and reserve requirements enter the picture. The Loan Types page lays out the program facts to carry into that meeting.
Living in Boston
The Boston skyline from the Longfellow Bridge, with the Charles River in the foreground and the downtown towers behind it.
Owning in Boston means living inside one of the densest rental markets in the country, with the Charles River Esplanade, Boston Common, and the Freedom Trail as your local geography. The owners who last here buy near transit, keep reserves for old-building surprises, and treat the first year as an education in their own property.