Middlesex County and Somerville City property record for 21 Walnut Rd, Somerville, MA 02145
| Property Type | Duplex |
|---|---|
| Details | 5 bd · 2 ba · 2,906 sqft · built 1890 |
| Lot Size | 0.061 acres (2,672 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $465,000 (Jul 2010) |
| Tax Bill | $10,825 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 71-B-8 |
| Primary APN | 71-B-8 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 14 Rooms |
| Units | 2 Units |
| Stories | 3 Stories |
| Building Area | 2,906 sqft Living Area |
| Gross Area | 4,705 sqft |
| Basement Area | 1,082 sqft |
| Unfinished Basement | 1,082 sqft |
| Year Built | Built 1890 |
|---|---|
| Effective Year Built | Effective 1890 |
| Architectural Style | Duplex Single |
| Exterior Material | Other |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 2,672 sqft (0.061 acres) |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Gas |
| Account Number | 19633045 |
|---|---|
| Street Address | 21 WALNUT RD |
| City | SOMERVILLE |
| State | MA |
| Zip | 02145-2936 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | NR |
| Legal Subdivision | EMILY E WOODWARD |
| Legal Block | B |
| Legal Lot Number | 8 |
| Jurisdiction | SOMERVILLE MA |
| Township / Civil Division | SOMERVILLE |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 350201 |
Source: Middlesex County and Somerville City records, as of October 20, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 21 WALNUT RD, SOMERVILLE, MA 02145-2936 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jul 7, 2010 · Amount on Record |
| Deed Sale | Jul 7, 2010 · Amount on Record |
| Deed Document Number | 2010111325 |
| Deed Book / Page | 54954 / 105 |
| Record Updated | Oct 29, 2026 |
Source: Middlesex County and Somerville City assessment roll, as of April 14, 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Middlesex County |
| Municipality | Somerville City |
| Unified School District | Somerville School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $10,825.00 (+5.33%) | $985,900 (+4.66%) Land $378,700 Building $607,200 | $1,105,152 |
| 2025 | $10,277.00 (+4.87%) | $942,000 (+1.12%) Land $360,700 Building $581,300 | |
| 2024 | $9,800.00 (+6.16%) | $931,600 (+4.36%) Land $360,700 Building $570,900 | |
| 2023 | $9,231.00 | $892,700 Land $360,700 Building $532,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective September 10, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 in force |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
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 | SOMERVILLE WATER DEPT. (MWRA) serves 81,045 people · EPA ID MA3274000 |
|---|---|
| Water Source | Purchased surface water from MWRA |
| Last State Inspection | Oct 2025 |
| Lead | 4 ppb (2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | Lead service line replacement currently in violation since Nov 2019 |
| Monitoring and Reporting | 1 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 1,104 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable · Fiber in parts of the area | 2,000 / 2,000 |
| Astound Broadband Cable | 1,500 / 50 |
| Netafy Fixed Wireless | 641 / 143 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Starry, T-Mobile, Verizon.
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