Middlesex County and Arlington Town property record for 46 River St, Arlington, MA 02474
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 2 ba · 2,436 sqft · built 1919 |
| Lot Size | 0.092 acres (3,999 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $1,100,000 (Sep 2020) |
| Tax Bill | $11,799 (2025) |
| Deeds & Mortgages | Mar 2026 Line of Credit May 2017 Mortgage + 2 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 27170 |
| Primary APN | 27170 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 11 Rooms |
| Units | 2 Units |
| Stories | 2 Stories |
| Building Area | 2,436 sqft Living Area |
| Gross Area | 4,329 sqft |
| Basement Area | 1,218 sqft |
| Unfinished Basement | 1,218 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1919 |
|---|---|
| Effective Year Built | Effective 1955 |
| Architectural Style | Duplex Single |
| Exterior Material | Brick |
| Construction Type | Frame |
| Roof Type | Flat |
| Roof Material | Tar & Gravel |
| Lot Area | 3,999 sqft (0.092 acres) |
| Garage Type | Detached |
| Heating System | Steam |
|---|---|
| Heating Fuel | Oil |
| Account Number | 27170 |
|---|---|
| Street Address | 46 RIVER ST |
| City | ARLINGTON |
| State | MA |
| Zip | 02474-3540 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R2 |
| Legal Block | 5 |
| Legal Lot Number | 12 |
| Jurisdiction | ARLINGTON MA |
| Township / Civil Division | ARLINGTON |
| Census Block Group | 4 |
| Census Block | 4007 |
| Census Tract | 356300 |
Source: Middlesex County and Arlington Town records, as of April 22, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 6 RIVER ST, ARLINGTON, MA 02474-3519 |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Mar 30, 2026 | Deed of Trust, Mortgage · Line of Credit NEEDHAM BANK |
| May 2, 2017 | Deed of Trust, Mortgage · ARM REVERSE MORTGAGE FUND |
| Sep 16, 2020 | Quit Claim Deed, Transfer · Stand-Alone First Mortgage TD BANK NA |
| Jul 27, 2020 | Quit Claim Deed, Transfer NOT AVAILABLE |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 16, 2020 · Amount on Record |
| Deed Sale | Sep 16, 2020 · Amount on Record |
| Deed Document Number | 2020163354 |
| Deed Book / Page | 75633 / 192 |
| Prior Transfer Date | Apr 13, 2020 |
| Prior Transfer Doc | 75216-10 |
| Record Updated | Jun 8, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ARLINGTON MA |
| Property Address | 46 RIVER ST, ARLINGTON, MA 02474-3540 |
| Transaction Type | Mortgage |
| Record Updated | Apr 22, 2026 |
| Name | Verified Name |
|---|
| Document Number | 085400-341 |
|---|---|
| Date | Mar 30, 2026 |
| Book Page | 85400/341 |
| Instrument | 34207 |
| Name | NEEDHAM BANK |
|---|
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 241 Months |
| Due | Apr 1, 2046 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ARLINGTON MA |
| Property Address | 46 RIVER ST, ARLINGTON, MA 02474-3540 |
| Transaction Type | Mortgage |
| Record Updated | Jun 23, 2022 |
| Name | Verified Name |
|---|
| Document Number | 069225-378 |
|---|---|
| Date | May 2, 2017 |
| Book Page | 69225/378 |
| Instrument | 64662 |
| Name | REVERSE MORTGAGE FUND |
|---|
| Type | ARM |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 4.05% |
| Margin | 13 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | ARLINGTON MA |
| Recording Date | Sep 16, 2020 |
| Property Address | 46 RIVER ST, ARLINGTON, MA 02474-3540 |
| Document Number | 075633-192 |
| Book / Page | 75633 / 192 |
| Instrument Date | Sep 16, 2020 |
| Instrument | 163354 |
| Transaction Type | Transfer |
| Record Updated | Jun 23, 2022 |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants by the Entirety |
| Address | 22 LAUREL ST, SOMERVILLE, MA 02143-2800 |
| Document Number | 0000163355 |
|---|---|
| Date | Sep 16, 2020 |
| Instrument | 163355 |
| Name | TD BANK NA |
|---|---|
| Type | Bank |
| Type | Stand-Alone First Mortgage |
|---|---|
| Amount | Amount Recorded |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | ARLINGTON MA |
| Recording Date | Jul 27, 2020 |
| Property Address | 46 RIVER ST, ARLINGTON, MA 02474-3540 |
| Document Number | 75216-10 |
| Book / Page | 075216 / 000010 |
| Instrument Date | Apr 13, 2020 |
| Instrument | 122869 |
| Transaction Type | Transfer |
| Record Updated | Aug 18, 2020 |
| Title Company | NOT AVAILABLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 6 RIVER ST ARLINGTON MA 024743519, ARLINGTON, MA 02474-3519 |
Source: Middlesex County and Arlington Town assessment roll, as of April 14, 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Middlesex County |
| County Subdivision | Arlington Town |
| Unified School District | Arlington School District (PK - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $11,799.00 (+8.2%) | $1,095,500 (+6.39%) Land $533,500 Building $562,000 |
| 2024 | $10,905.00 (-1.44%) | $1,029,700 (+4.33%) Land $507,900 Building $521,800 |
| 2023 | $11,064.00 | $987,000 Land $425,800 Building $561,200 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 Claims | 2 (1978) |
| Most Recent Claim | Feb 1978 · tidal / storm surge |
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 | ARLINGTON WATER DEPT. (MWRA) serves 46,308 people · EPA ID MA3010000 |
|---|---|
| Water Source | Purchased surface water from MWRA |
| Last State Inspection | Aug 2023 |
| Lead | 3 ppb (2025) 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 715 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fiber · Fixed Wireless in parts of the area | 2,300 / 2,300 |
| Xfinity Cable | 2,000 / 2,000 |
| Astound Broadband Cable | 1,500 / 50 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Starry.
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