Norfolk County, MA Cap Rates by Neighborhood

The County-Wide Gross Yield Is a Starting Point, Not an Answer

At a 22.0x price-to-rent ratio, Norfolk County's computed gross yield sits at 4.54%. That figure is almost irrelevant for deal underwriting. It mixes Brookline condos, Norwood multifamily, and Sharon single-family colonials into a single blended number that describes no individual deal accurately. What matters is how taxes, insurance, transit access, and employer anchors spread that yield across the county's municipalities.

The commercial multifamily market, which traded $947 million across 44 deals in 2025, averaged $390,544 per unit at a market-wide cap rate of 6.7%. That 6.7% is 215 basis points above the gross yield implied by ZHVI and ZORI. The gap reflects the obvious: residential single-family and small condo purchases are priced for owner-occupant demand, not investor returns. Multifamily acquisitions at scale are where cap rates even become investable, and even those 6.7% gross caps compress hard once you net out taxes.

Property Taxes: The Single Largest Yield Killer

Norfolk County carries the second-highest average residential property tax bill in Massachusetts, at $11,148 per year on an average assessed value, with a county-wide average rate of $12.08 per $1,000. At the ZHVI of $785,822, that rate implies an annual tax burden of about $9,494. Set that against gross annual rent of $35,640 (12 months at $2,970), and taxes alone consume roughly 26.6% of gross income before maintenance, insurance, vacancy, or debt service.

The net yield impact is direct. A property generating a 4.54% gross yield loses 1.21 percentage points to taxes at the county-average rate, leaving a pre-expense, pre-debt net yield around 3.3%. That is before any vacancy, repair reserve, or property management cost.

Municipal tax rate selection is therefore a first-order investment decision in this county, not a secondary screening criterion.

Neighborhood and Municipality Breakdown

Canton, Norwood, and Braintree: The Lowest-Tax Tier

At $9.75, $9.82, and $10.06 per $1,000 respectively, these three municipalities carry tax rates roughly 175 basis points below Sharon's $17.15 peak rate. On a $785,822 acquisition, the annual tax difference between Canton ($7,662) and Sharon ($13,477) is $5,815 per year. At a $2,970 monthly rent, that swing represents 16.3% of gross annual income.

Norwood carries additional employer weight. Moderna operates an mRNA manufacturing facility there, and FM Global is replacing its campus with a 320,000 sq ft R&D facility using a 20-year tax increment financing agreement. That level of committed employer capital points toward durable rental demand. Investors should note, however, that Steward Health Care's May 2024 bankruptcy has placed the $1.5 billion Norwood Hospital replacement project in serious jeopardy. A major healthcare employer exit would soften demand in the immediate submarket, and any acquisition near that hospital site warrants conservative vacancy underwriting until the project's fate is resolved.

Brookline: High Demand, Thin Gross Yield

Brookline is the county's premium submarket, ranked by Niche as the top place to live in Norfolk County for 2026, with MBTA Green Line access and direct adjacency to six Boston neighborhoods. Entry prices exceed the county median, compressing gross yields well below 4.54%. Rental demand is persistent, and vacancy risk is low. The investment profile here is capital preservation and long-term appreciation, not income generation. A 3.0–3.5% gross yield is a realistic expectation for a stabilized single-family or small multifamily property in Brookline.

Sharon, Millis, Norfolk: The High-Tax Outer Tier

Sharon's $17.15 per $1,000 rate, Millis at $15.31, and Norfolk at $14.87 create a structurally compressed net yield environment. On the same $785,822 asset, Sharon's annual tax bill reaches $13,477. That leaves a gross-minus-tax spread of about 2.3% before any other operating cost. These towns do not have the commuter rail boarding volumes or employer anchors in the brief that justify paying a premium for location, so the tax drag is not offset by a rent premium.

Transit-Corridor Towns: The ADU Opportunity Layer

The MBTA's Franklin Line Double Track extension to near Norfolk Station, combined with South Coast Rail Phase 1 opening through the Stoughton corridor in March 2025, expands the universe of transit-adjacent properties where the 2025 ADU law delivers its best results. The Affordable Homes Act, effective February 2, 2025, mandates by-right ADUs up to 900 sq ft on any single-family lot across all 28 Norfolk County municipalities, with no special permit, no owner-occupancy requirement, and no parking requirement within half a mile of a transit stop.

For a lower-tax transit town like Canton or Braintree, the calculus is concrete: a single-family home purchased at or below county median, with a by-right ADU added at 800–900 sq ft, can generate a blended rent stream that moves the effective gross yield from the 4.5% range toward 5.5–6.0% on total cost. Whether that pencils depends on construction cost, setbacks, and septic capacity, all of which towns retain authority to regulate.

Neighborhood Yield Comparison Table

Gross-minus-tax yield uses county ZORI of $2,970/mo against $785,822 acquisition price. All figures assume on-median rent and price; individual properties will vary.

Cap Rate Decompression: What the Commercial Market Is Telling You

The commercial multifamily cap rate moved from 5.7% in 2024 to 6.7% in 2025, a 100-basis-point shift in one year. Deal volume rose 55.1% and dollar volume rose 46.9%, so this decompression is happening into rising transaction activity, not falling demand. That is a rate-driven phenomenon: higher financing costs are requiring sellers to price assets to meet investor return hurdles.

Residential prices told a softer story. The median sale price of $750,000 as of November 2025 was up 3.4% year over year, while the ZHVI shows 1.50% appreciation on a 12-month basis. Rent growth is not broken out explicitly in the brief, but the 4.54% gross yield held at a $2,970 ZORI implies rents are not growing faster than prices. The appreciation-driven return thesis remains intact at the county level, though at 1.5% annual price growth, it is modest.

Flood Risk Adjustment

Updated FEMA Flood Insurance Rate Maps became effective June 8, 2025 across all Norfolk County jurisdictions. Some properties that were outside Special Flood Hazard Areas under prior maps may now carry mandatory flood insurance requirements, adding $1,500–$3,000 or more annually to operating costs depending on coverage levels. At $2,970 monthly rent, a $2,000 flood insurance premium shaves an additional 47 basis points off gross yield. Conduct an address-level FIRM lookup on any acquisition before closing.

Cap Rate Outlook

The directional pressure on Norfolk County cap rates depends on two variables: Federal Reserve rate trajectory and ADU adoption speed.

If financing costs ease in 2026, commercial cap rates should compress back toward 6.0–6.2%, rewarding investors who acquire at today's 6.7% market-wide rates. The 14% surge in mortgage recordings in 2025 and the 3% rise in transaction volume suggest financing conditions are already loosening at the margins.

The by-right ADU mandate, effective February 2025, is the structural change with the longest tail. It does not immediately move cap rates, but it expands the pool of single-family assets with income potential that was previously locked behind discretionary zoning. Over a 3–5 year period, ADU-enabled properties in lower-tax, transit-adjacent towns will attract a new investor segment that was previously priced out of the multifamily market.

The Steward Health Care bankruptcy remains the clearest localized downside risk. If the Norwood Hospital project collapses, healthcare employment in that submarket declines, and the rental demand that Moderna and FM Global support will need to absorb the gap.

Model your specific deal with our investment property calculator to apply your actual acquisition price, local tax rate, and ADU income assumptions against these county-level benchmarks.