19 Union St, Charlestown, MA 02129 Property Records

Suffolk County and Boston City property record for 19 Union St, Charlestown, MA 02129

Property Summary

Property Type	Single Family Home
Details	3 bd · 3.5 ba · 2,300 sqft · built 1870
Lot Size	0.044 acres (1,908 sqft)
Owner	Individual Name on File
Last Sale	$1,060,000 (Dec 2011)
Tax Bill	$23,930 (2025)
Deeds & Mortgages	Dec 2022 Line of Credit Mar 2021 Refinance + 2 more
Flood Zone	Zone X (minimal risk)
APN	`CHAR W:02 P:03795 S:000`

Property Details

APN / Parcel Number

Primary APN	`CHAR W:02 P:03795 S:000`

Interior

Bedrooms	3 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	3 Stories
Building Area	2,300 sqft Living Area
Gross Area	3,066 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1870
Effective Year Built	Effective 2023
Architectural Style	Other
Exterior Material	Wood Siding
Roof Type	Gable
Roof Material	Asphalt
Lot Area	1,908 sqft (0.044 acres)

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Forced Air with A/C

Location & Zoning

Street Address	19 UNION ST
City	CHARLESTOWN
State	MA
Zip	02129-3505
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Jurisdiction	BOSTON MA
Township / Civil Division	BOSTON
Census Block Group	2
Census Block	2019
Census Tract	40401

Owner

19 Union St is owned and occupied by an individual who bought it in December 2011.

Source: Suffolk County and Boston City records, as of July 20, 2026

Owner of Record	Individual Name on File
Mailing Address	19 UNION ST, CHARLESTOWN, MA 02129-3505
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.

Deeds, Mortgages & Sale History

Date	Document
Dec 22, 2022	Deed of Trust, Mortgage · Line of Credit CAMBRIDGE SAVINGS BANK
Mar 15, 2021	Deed of Trust, Mortgage · Stand-Alone Refinance LEADER BANK NA
May 3, 2019	Deed of Trust, Mortgage · Balloon Mortgage CAMBRIDGE SAVINGS BANK
Aug 21, 2020	Deed of Trust, Mortgage · Stand-Alone Refinance METRO CU

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Dec 22, 2011 · Amount on File
Deed Sale	Dec 22, 2011 · Amount on File
Prior Sale	May 20, 2010 · Amount on File
Deed Document Number	201110
Deed Book / Page	48842 / 66
Record Updated	Oct 29, 2026

December 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOSTON MA
Property Address	19 UNION ST, CHARLESTOWN, MA 02129-3505
Transaction Type	Mortgage
Record Updated	Jan 6, 2023

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	068551-259
Date	Dec 22, 2022
Book Page	68551/259
Instrument	101804

Lender

Name	CAMBRIDGE SAVINGS BANK
Type	Bank

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	349 Months
Due	Jan 1, 2052

Interest

Rate Type	Adjustable Rate

March 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOSTON MA
Property Address	19 UNION ST, CHARLESTOWN, MA 02129-3505
Transaction Type	Mortgage
Record Updated	Apr 2, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	64989-145
Date	Mar 15, 2021
Book Page	64989/145
Instrument	27496

Lender

Name	LEADER BANK NA
Type	Bank

Agreement

Type	Stand-Alone Refinance
Amount	Amount on Record
Term	181 Months
Due	Apr 1, 2036

May 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOSTON MA
Property Address	19 UNION ST, CHARLESTOWN, MA 02129-3505
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	61065-93
Date	May 3, 2019
Book Page	61065/93
Instrument	33348

Lender

Name	CAMBRIDGE SAVINGS BANK
Type	Bank

Agreement

Type	Balloon Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jun 1, 2049

August 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOSTON MA
Property Address	19 UNION ST, CHARLESTOWN, MA 02129-3505
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	63610-22
Date	Aug 21, 2020
Book Page	63610/22
Instrument	70086

Lender

Name	METRO CU
Type	Credit Union

Agreement

Type	Stand-Alone Refinance
Amount	Amount on Record
Term	181 Months
Due	Sep 1, 2035

Tax Assessment & Valuation

The 2025 property tax bill for 19 Union St was $23,930, up 1% from the year before.

Source: Suffolk County and Boston City assessment roll, as of April 14, 2026

Property Jurisdictions

Type	Name
State	Massachusetts
County	Suffolk County
Municipality	Boston City
Unified School District	Boston School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$23,930.00 (+9.97%)	$2,066,500 (+3.52%) Land $571,400 Building $1,495,100	$2,044,115 (+3.2%)
2024	$21,760.00 (+9.61%)	$1,996,300 (+8%) Land $514,900 Building $1,481,400	$1,980,750
2023	$19,852.00	$1,848,400 Land $476,700 Building $1,371,700

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 19 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.

Wildfire

The area around 19 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.

Drinking Water

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

Violations Reported to EPA

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.

Internet Providers

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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