Suffolk County and Boston City property record for 15R Union St, Charlestown, MA 02129
| Property Type | Duplex |
|---|---|
| Details | 6 bd · 5 ba · 3,870 sqft · built 2009 |
| Lot Size | 0.068 acres (2,946 sqft) |
| Owner | 2 Trust Names on File |
| Tax Bill | $18,347 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | CHAR W:02 P:03796 S:020 |
| Primary APN | CHAR W:02 P:03796 S:020 |
|---|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 5 Baths |
| Half Baths | 2 Half Baths |
| Total Rooms | 10 Rooms |
| Stories | 3 Stories |
| Building Area | 3,870 sqft Living Area |
| Gross Area | 5,184 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2009 |
|---|---|
| Effective Year Built | Effective 2009 |
| Architectural Style | Other |
| Exterior Material | Wood Siding |
| Roof Type | Flat |
| Roof Material | Other |
| Lot Area | 2,946 sqft (0.068 acres) |
| Parking Spaces | 1 Parking Space |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Street Address | 15R UNION ST |
|---|---|
| City | CHARLESTOWN |
| State | MA |
| Zip | 02129-3505 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R2 |
| Jurisdiction | BOSTON MA |
| Township / Civil Division | BOSTON |
| Census Block Group | 2 |
| Census Block | 2019 |
| Census Tract | 40401 |
15R Union St, a duplex, is held in a trust since March 2025.
Source: Suffolk County and Boston City records, as of April 14, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 15 UNION ST, CHARLESTOWN, MA 02129-3505 |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
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 Transfer Date | Mar 13, 2025 |
| Transfer Doc | 071429-313 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 15R Union St was $18,347, up 10.7% 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 | $18,347.00 (+10.72%) | $1,584,400 (+4.22%) Land $370,700 Building $1,213,700 |
| 2024 | $16,570.00 (+1.49%) | $1,520,200 (-) Land $285,500 Building $1,234,700 |
| 2023 | $16,327.00 | $1,520,200 Land $285,500 Building $1,234,700 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 15R Union St in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2018.
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 |
| Nearby Flood Claims | 1 (2018) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Jan 2018 · 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.
The area around 15R Union 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 1,310 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 |
| Verizon Fiber · Fixed Wireless in parts of the area | 980 / 880 |
| Netafy Fixed Wireless | 641 / 143 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Starry.
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