51 Sullivan St, Charlestown, MA 02129 Property Records

Suffolk County and Boston City property record for 51 Sullivan St, Charlestown, MA 02129

Property Summary

Property Type	Single Family Home
Details	4 bd · 3.5 ba · 2,670 sqft · built 2017
Lot Size	0.047 acres (2,055 sqft)
Owner	2 Individual Names on File
Last Sale	$2,550,000 (Nov 2025)
Tax Bill	$28,899 (2025)
Deeds & Mortgages	Jan 2026 Mortgage Nov 2025 Sale + 4 more
Flood Zone	Zone X (minimal risk)
APN	`CHAR W:02 P:00611 S:010`

Property Details

APN / Parcel Number

Primary APN	`CHAR W:02 P:00611 S:010`

Interior

Bedrooms	4 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	3 Stories
Building Area	2,670 sqft Living Area
Gross Area	2,949 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 2017
Effective Year Built	Effective 2017
Architectural Style	Other
Exterior Material	Concrete Block
Roof Type	Flat
Roof Material	Other
Lot Area	2,055 sqft (0.047 acres)
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Forced Air with A/C

Location & Zoning

Street Address	51 SULLIVAN ST
City	CHARLESTOWN
State	MA
Zip	02129-2456
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Jurisdiction	BOSTON MA
Township / Civil Division	BOSTON
Census Block Group	5
Census Block	5006
Census Tract	40300

Owner

51 Sullivan St is owned and occupied by two individuals who bought it in November 2025.

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

Owner of Record	2 Individual Names on File
Mailing Address	51 SULLIVAN ST, CHARLESTOWN, MA 02129-2456
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Tenants by the Entirety

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
Jan 13, 2026	Deed of Trust, Mortgage · Conventional Mortgage MORGAN STANLEY PRIVATE BANK
Nov 10, 2025	Quit Claim Deed, Transfer
Jun 5, 2020	Deed of Trust, Mortgage · Stand-Alone Refinance LEADER BANK NA
Jul 31, 2018	Quit Claim Deed, Transfer WELLS FARGO BANK NA
Jul 12, 2018	Quit Claim Deed, Transfer LEADER BANK NA
Nov 2, 2017	Deed of Trust, Mortgage WINTER HILL FSB

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Nov 10, 2025 · Amount on File
Deed Sale	Nov 10, 2025 · Amount on File
Prior Sale	Jul 31, 2018 · Amount on File
Deed Document Number	202572036
Deed Book / Page	72083 / 134
Prior Transfer Date	Nov 7, 2025
Prior Transfer Doc	0000072036
Record Updated	Oct 29, 2026

January 2026: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOSTON MA
Property Address	51 SULLIVAN ST, CHARLESTOWN, MA 02129-2456
Transaction Type	Mortgage
Record Updated	Apr 3, 2026

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0072312-11
Date	Jan 13, 2026
Book Page	72312/11
Instrument	1918

Lender

Name	MORGAN STANLEY PRIVATE BANK

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Feb 1, 2056

Interest

Rate Type	Adjustable Rate
Rate	5%
Type Change Date	Feb 1, 2033
Index	Other
Margin	3

November 2025: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	BOSTON MA
Recording Date	Nov 10, 2025
Property Address	51 SULLIVAN ST, CHARLESTOWN, MA 02129-2456
Document Number	072083-134
Book / Page	72083 / 134
Instrument Date	Nov 7, 2025
Instrument	72036
Transaction Type	Transfer
Record Updated	Dec 3, 2025

Transaction

Amount	Amount on Record
Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Tenants by the Entirety
Address	51 SULLIVAN ST, CHARLESTOWN, MA 02129-2456

June 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOSTON MA
Property Address	51 SULLIVAN ST, CHARLESTOWN, MA 02129-2456
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	63124-184
Date	Jun 5, 2020
Book Page	63124/184
Instrument	44113

Lender

Name	LEADER BANK NA
Type	Bank

Agreement

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

July 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	BOSTON MA
Recording Date	Jul 31, 2018
Property Address	51 SULLIVAN ST, CHARLESTOWN, MA 02129-2456
Document Number	59958-345
Book / Page	59958 / 345
Instrument	67079
Transaction Type	Transfer
Record Updated	Jun 10, 2021

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$123.09
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	51 SULLIVAN ST, CHARLESTOWN, MA 02129-2456

Mortgage

Document Number	599590001
Date	Jul 31, 2018
Instrument	59959/0001

Lender

Name	WELLS FARGO BANK NA
Type	Bank

Agreement

Amount	Amount on Record
Term	361 Months
Due	Jul 31, 2048

July 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	BOSTON MA
Recording Date	Jul 12, 2018
Property Address	51 SULLIVAN ST, CHARLESTOWN, MA 02129-2456
Document Number	59873-324
Book / Page	59873 / 324
Instrument	60949
Transaction Type	Transfer
Record Updated	Jun 10, 2021

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$123.09
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Investor	Possibly a Property Investor

Mortgage

Document Number	598730331
Date	Jul 12, 2018
Instrument	59873/0331

Lender

Name	LEADER BANK NA
Type	Bank

Agreement

Amount	Amount on Record
Term	360 Months
Due	Jul 12, 2048

Interest

Rate	3.75%
Max Rate At Change	80.1%
Max Rate	2.25%

November 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOSTON MA
Property Address	51 SULLIVAN ST, CHARLESTOWN, MA 02129-2456
Document Number	58754-282
Instrument Date	Nov 2, 2017
Transaction Type	Mortgage
Record Updated	Apr 9, 2019
Title Company	NOT AVAILABLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	58754-282
Date	Nov 3, 2017
Book Page	058754/000282
Instrument	98280

Lender

Name	WINTER HILL FSB
Type	Federal Savings Bank

Agreement

Amount	Amount on Record

Tax Assessment & Valuation

The 2025 property tax bill for 51 Sullivan St was $28,899, up 16.4% 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	$28,899.00 (+16.4%)	$2,495,600 (+9.56%) Land $675,900 Building $1,819,700	$2,291,495 (-5.17%)
2024	$24,828.00 (+6.56%)	$2,277,800 (+4.99%) Land $395,100 Building $1,882,700	$2,416,325
2023	$23,300.00	$2,169,500 Land $376,300 Building $1,793,200

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

Flood

FEMA maps place 51 Sullivan St in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2021.

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 (2021)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Jul 2021 · 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.

Wildfire

The area around 51 Sullivan 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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