BOSTON / CAP RATE SCREEN
Market deep diveBoston Cap Rates: Gross Yield, NOI & Underwriting
A Boston cap-rate screen explaining the city’s directional rent/value proxy, NOI assumptions, basis pressure, taxes, regulation, and the property-level work required before comparing yields.
INVESTOR ANSWER
Boston’s market proxy is a basis warning, not a cap-rate promise.
Using the two Census city medians, Boston’s $2,147 monthly gross rent divided by a $731,700 median owner-occupied value produces an approximate 3.5% gross rent/value proxy. It excludes vacancy, operating expenses, property taxes, insurance, financing, and capital expenditures, so a property-level cap rate must be built from actual NOI—not this headline.
PAGE SCOPE
A focused layer inside the Boston profile.
This deep dive answers a high-intent question using the market profile’s dated sources. It narrows the search; it does not replace property-level diligence, legal review, tax advice, or a full return model.
Read the full Boston profile01 / DATED MARKET SNAPSHOT
The numbers behind this question
Each figure keeps its geography, period, definition, and source visible.
Median gross rent
$2,147/mo
Boston city · 2020–2024
Census city median gross rent across occupied units; it is not guaranteed rent for a specific unit.
Source: U.S. Census Bureau QuickFacts ↗Median home value
$731,700
Owner-occupied · 2020–2024
Census median value for owner-occupied homes; it is not a listing price or replacement cost.
Source: U.S. Census Bureau QuickFacts ↗Home-price change
+3.20%
Boston, MA MSAD · 1 year through 2026 Q2
FHFA index change for the named geography; it signals market direction, not a property forecast.
Source: FHFA House Price Index datasets ↗Metro unemployment
3.9%
Boston-Cambridge-Newton · July 2026
BLS metro unemployment rate; it is labor-market context, not tenant-income or vacancy data.
Source: BLS metropolitan labor force data ↗DIRECTIONAL GROSS PROXY
≈ 3.5% gross
$2,147 × 12 ÷ $731,700 using the two Census city medians. This is a directional comparison across different median populations and periods—not a cap rate, cash-on-cash return, or property forecast.
02 / MARKET ANALYSIS
What matters before the spreadsheet
01 / THE PROXY
Gross rent/value is a quick comparison, not NOI
The directional proxy annualizes the city median gross rent and divides it by the city median value of owner-occupied homes. Because the numerator and denominator represent broad medians rather than the same property, the calculation is useful for comparing market positioning—not for quoting an investment return.
- Do not call the proxy a cap rate, cash-on-cash return, or projected IRR.
- Replace city medians with the subject property’s purchase price, effective rent, vacancy, and operating expenses.
- Use the same geography, unit type, and period when comparing candidate properties.
02 / NOI PRESSURE
High basis makes every operating assumption matter
A high purchase basis leaves less room for optimistic rent or expense assumptions. Boston rental registration, inspections, taxes, insurance, utilities, repairs, and capital projects can move NOI materially even when headline rent remains strong.
- Separate recurring operating expenses from financing, income taxes, and one-time closing costs.
- Model vacancy, concessions, management, utilities, repairs, reserves, and tax changes explicitly.
- Run a higher exit-yield case so the return does not depend on automatic appreciation.
03 / DECISION RULE
Let the address earn its place in the portfolio
Boston’s 3.20% one-year FHFA price change and 3.9% metro unemployment rate provide market context, not a substitute for a property model. A reasonable screening decision is to proceed only when the property’s effective NOI and downside case justify the basis and management complexity.
- Compare cap rate with building quality, tenant durability, liquidity, and regulatory obligations—not in isolation.
- Check the tax bill, registration status, inspection exposure, insurance, and deferred maintenance before accepting the asking price.
- Use the full rental-property calculator for debt service, DSCR, cash flow, equity growth, and exit sensitivity.
03 / UNDERWRITING CHECKLIST
Turn the topic into a decision.
The market page narrows the question. These checks decide whether the address deserves a full model.
Review the methodology- 01Calculate effective gross income from signed or well-matched rent comps after vacancy and concessions.
- 02Build NOI with property taxes, insurance, management, utilities, repairs, reserves, and recurring fees.
- 03Compare the resulting cap rate with an unlevered downside case and a higher exit yield.
- 04Do not proceed on the market proxy alone; document the property-level reason the basis is supportable.
04 / CAP RATES FAQ
Questions investors usually ask next
Is the 3.5% Boston proxy the market cap rate?
No. It is annualized city median gross rent divided by city median owner-occupied home value. It excludes vacancy and operating expenses and uses different broad populations, so it is only a directional market comparison.
What is the biggest Boston cap-rate risk?
The high basis can compress cash yield, while taxes, insurance, repairs, registration, vacancy, and financing can reduce NOI or cash flow further. The exact property and expense model decide whether a deal works.
Should financing be included in cap rate?
No. Cap rate is NOI divided by purchase price and is unlevered. Include financing separately when calculating cash flow, DSCR, cash-on-cash return, or total return.
05 / RELATED PAGES
Keep the research connected
06 / TAKE THE NEXT STEP
Turn the Boston signal into a property screen.
Use the market context to choose your next check, then run price, rent, expenses, cap rate, cash flow, and DSCR through one property model. Ask a focused question only if something still needs a second pair of eyes. No appointment is required.
07 / SOURCES & REFRESH
Dated enough to revisit
Every number above carries a geography and period, while the links below point to the official source families used for the screen. Refresh this page when the parent market profile’s data window or local rules change.