Middlesex County and Cambridge City property record for 6 Walnut Ave, Cambridge, MA 02140
| Property Type | Single Family Home |
|---|---|
| Details | 7 bd · 5.5 ba · 5,089 sqft · built 1886 |
| Lot Size | 0.608 acres (26,492 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $945,000 (Jul 1990) |
| Tax Bill | $35,991 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 210-27 |
| Primary APN | 210-27 |
|---|---|
| Alternative APN |
|
| Bedrooms | 7 Beds |
|---|---|
| Full Baths | 5.5 Baths |
| Half Baths | 3 Half Baths |
| Total Rooms | 12 Rooms |
| Stories | 3 Stories |
| Building Area | 5,089 sqft Living Area |
| Gross Area | 7,749 sqft |
| 1st Floor Area | 1,852 sqft |
| Basement Area | 1,347 sqft |
| Unfinished Basement | 1,347 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1886 |
|---|---|
| Effective Year Built | Effective 1886 |
| Architectural Style | Victorian |
| Exterior Material | Wood Siding |
| Construction Type | Stone |
| Roof Type | Gable |
| Roof Material | Slate |
| Lot Area | 26,492 sqft (0.608 acres) |
| Garage Type | Covered |
| Parking Spaces | 5 Parking Spaces |
| Deck Area | Deck Area |
| Cooling System | HVAC |
|---|---|
| Heating System | Hot Water |
| Heating Fuel | Gas |
| Street Address | 6 WALNUT AVE |
|---|---|
| City | CAMBRIDGE |
| State | MA |
| Zip | 02140-2707 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | A-2 |
| Legal Lot Number | 27 |
| Jurisdiction | CAMBRIDGE MA |
| Township / Civil Division | CAMBRIDGE |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 354500 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the Avon Hill Historic District listed 1983 · 76 contributing resources · NRIS 83000782 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
6 Walnut Ave is owned and occupied by two individuals who bought it in July 1990.
Source: Middlesex County and Cambridge City records, as of July 20, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 6 WALNUT AVE, CAMBRIDGE, MA 02140-2707 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 18, 1990 · Amount on File |
| Deed Sale | Jul 18, 1990 · Amount on File |
| Prior Sale | Oct 19, 1989 · Amount on File |
| Deed Book / Page | 20662 / 496 |
| Transfer Doc | 0000000000 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 6 Walnut Ave was $35,991, up 8.1% from the year before.
Source: Middlesex County and Cambridge City assessment roll, as of April 14, 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Middlesex County |
| Municipality | Cambridge City |
| Unified School District | Cambridge School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $35,991.00 (+8.12%) | $5,667,800 (+0.8%) Land $2,745,900 Building $2,921,900 | $5,011,820 |
| 2024 | $33,287.00 (+6.98%) | $5,622,800 (+5.89%) Land $2,861,700 Building $2,761,100 | |
| 2023 | $31,115.00 | $5,309,800 Land $2,919,400 Building $2,390,400 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 6 Walnut Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 10, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 6 Walnut Ave has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CAMBRIDGE WATER DEPARTMENT serves 118,214 people · EPA ID MA3049000 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jun 2023 |
| Lead | 8 ppb (2021–2023) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 1,054 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| Astound Broadband Cable · Fiber in parts of the area | 1,500 / 50 |
| Verizon Fixed Wireless | 1,000 / 75 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Netafy, Starry.
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