Suffolk County and Boston City property record for 43 Mill St, Dorchester, MA 02122
| Property Type | Duplex |
|---|---|
| Details | 7 bd · 3.5 ba · 4,387 sqft · built 1880 |
| Lot Size | 0.401 acres (17,474 sqft) |
| Owner | Individual Name on File |
| Last Sale | $560,000 (Mar 2016) |
| Tax Bill | $10,254 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | DORC W:16 P:00112 S:000 |
| Primary APN | DORC W:16 P:00112 S:000 |
|---|
| Bedrooms | 7 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 15 Rooms |
| Units | 2 Units |
| Stories | 3 Stories |
| Building Area | 4,387 sqft Living Area |
| Gross Area | 7,523 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1880 |
|---|---|
| Effective Year Built | Effective 2009 |
| Architectural Style | Conventional |
| Exterior Material | Wood Siding |
| Roof Type | Mansard |
| Roof Material | Asphalt |
| Lot Area | 17,474 sqft (0.401 acres) |
| Parking Spaces | 5 Parking Spaces |
| Heating System | Forced Air with A/C |
|---|
| Street Address | 43 MILL ST |
|---|---|
| City | DORCHESTER |
| State | MA |
| Zip | 02122-3561 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R2 |
| Jurisdiction | BOSTON MA |
| Township / Civil Division | BOSTON |
| Census Block Group | 3 |
| Census Block | 3012 |
| Census Tract | 92101 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the Harrison Square Historic District listed 2002 · 141 contributing resources · NRIS 02001190 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
43 Mill St, a duplex, is owned and occupied by an individual who bought it in March 2016.
Source: Suffolk County and Boston City records, as of April 14, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 43 MILL ST, DORCHESTER, MA 02122-3561 |
| 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 | Name on Deed |
|---|---|
| Last Sale | Mar 8, 2016 · Amount on File |
| Deed Sale | Mar 8, 2016 · Amount on File |
| Prior Sale | Mar 8, 2016 |
| Deed Book / Page | 55809 / 281 |
| Transfer Doc | 0000020248 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 43 Mill St was $10,254, up 8.1% from the year before.
Source: Suffolk County and Boston City assessment roll, as of April 14, 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Suffolk County |
| Municipality | Boston City |
| Unified School District | Boston School District (PK - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $10,254.00 (+8.08%) | $885,500 (+1.73%) Land $333,300 Building $552,200 |
| 2024 | $9,487.00 (+1.49%) | $870,400 (-) Land $419,300 Building $451,100 |
| 2023 | $9,348.00 | $870,400 Land $419,300 Building $451,100 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 43 Mill St in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2000.
Source: FEMA National Flood Hazard Layer, effective January 21, 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 |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 1 (2000) |
| Most Recent Claim | Aug 2000 · rainfall accumulation |
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.
The area around 43 Mill St 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 | BOSTON WATER AND SEWER COMMISSION (MWRA) serves 675,647 people · EPA ID MA3035000 |
|---|---|
| Water Source | Purchased surface water from MWRA |
| Last State Inspection | Mar 2026 |
| Lead | 6 ppb (2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | Lead service line replacement currently in violation since Nov 2020 |
| 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 703 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 · Fiber in parts of the area | 2,000 / 2,000 |
| Astound Broadband Cable | 1,500 / 50 |
| Netafy Fixed Wireless | 600 / 150 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: T-Mobile.
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