Suffolk County and Boston City property record for 30 Union St, Charlestown, MA 02129
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3.5 ba · 2,539 sqft · built 1792 |
| Lot Size | 0.062 acres (2,713 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $267,500 (Jun 1994) |
| Tax Bill | $17,451 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | CHAR W:02 P:03847 S:000 |
| Primary APN | CHAR W:02 P:03847 S:000 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 10 Rooms |
| Stories | 3 Stories |
| Building Area | 2,539 sqft Living Area |
| Gross Area | 3,528 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1792 |
|---|---|
| Effective Year Built | Effective 1792 |
| Architectural Style | Colonial |
| Exterior Material | Wood Siding |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 2,713 sqft (0.062 acres) |
| Parking Spaces | 1 Parking Space |
| Deck Area | Deck Area |
| Heating System | Hot Water |
|---|
| Street Address | 30 UNION ST |
|---|---|
| City | CHARLESTOWN |
| State | MA |
| Zip | 02129-3510 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Subdivision | CHARLESTOWN URBAN RENEWAL AREA |
| Jurisdiction | BOSTON MA |
| Township / Civil Division | BOSTON |
| Census Block Group | 2 |
| Census Block | 2007 |
| Census Tract | 40401 |
30 Union St is owner-occupied and held in a trust since January 2025.
Source: Suffolk County and Boston City records, as of July 20, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 30 UNION ST, CHARLESTOWN, MA 02129-3510 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Revocable 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 Sale | Jun 9, 1994 · Amount on File |
| Deed Sale | Jun 9, 1994 · Amount on File |
| Prior Sale | Jan 8, 1992 · Amount on File |
| Last Transfer Date | Jan 24, 2025 |
| Transfer Doc | 0071029-39 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 30 Union St was $17,451, up 2.8% 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 | Assessed Market Value |
|---|---|---|---|
| 2025 | $17,451.00 (+2.8%) | $1,507,000 (-3.24%) Land $548,800 Building $958,200 | $1,508,790 (+13.29%) |
| 2024 | $16,976.00 (+6.55%) | $1,557,400 (+4.99%) Land $516,200 Building $1,041,200 | $1,331,805 |
| 2023 | $15,932.00 | $1,483,400 Land $491,700 Building $991,700 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 30 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 30 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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