23 Clark St, Boston, MA 02109 Property Records

Suffolk County and Boston City property record for 23 Clark St, Boston, MA 02109

Property Summary

Property Type	Apartments (5+ Units)
Details	7,625 sqft · built 1910
Lot Size	0.04 acres (1,742 sqft)
Owner	Company Name on File
Last Sale	$50,000 (Oct 1997)
Tax Bill	$24,481 (2025)
Deeds & Mortgages	Dec 2022 Mortgage Aug 2019 Refinance
Flood Zone	Zone X (minimal risk)
APN	`CBOS W:03 P:03164 S:000`

Property Details

APN / Parcel Number

Primary APN	`CBOS W:03 P:03164 S:000`

Interior

Units	10 Units
Stories	5 Stories
Building Area	7,625 sqft Living Area
Gross Area	9,150 sqft

Exterior

Year Built	Built 1910
Effective Year Built	Effective 2019
Exterior Material	Brick
Construction Type	Brick
Lot Area	1,742 sqft (0.04 acres)

Location & Zoning

Street Address	23 CLARK ST
City	BOSTON
State	MA
Zip	02109-1182
Property Category	Residential
Property Type	Residential > Multi-Unit > Apartments (5+ Units)
Local Zoning Code	A
Jurisdiction	BOSTON MA
Township / Civil Division	BOSTON
Census Block Group	2
Census Block	2006
Census Tract	30500

Owner

23 Clark St, a residential property, is owned by a company that bought it in October 1997.

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

Owner of Record	Company Name on File
Mailing Address	23 CLARK ST, BOSTON, MA 02109-1182
Owner Type	Company

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 20, 2022	Deed of Trust, Mortgage · Second Mortgage (Down Payment) SALEM FIVE CENTS SAVINGS BANK
Aug 2, 2019	Deed of Trust, Mortgage · Stand-Alone Refinance SALEM FIVE CENTS SAVINGS BANK

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Oct 28, 1997 · Amount on File
Deed Sale	Oct 28, 1997 · Amount on File
Deed Book / Page	21846 / 130
Record Updated	Jun 8, 2026

December 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOSTON MA
Property Address	23 CLARK ST, BOSTON, MA 02109-1182
Transaction Type	Mortgage
Record Updated	Feb 14, 2024

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0068543-92
Date	Dec 20, 2022
Book Page	68543/92
Instrument	101240

Lender

Name	SALEM FIVE CENTS SAVINGS BANK
Type	Bank

Agreement

Type	Second Mortgage (Down Payment)
Amount	Amount on Record

August 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOSTON MA
Property Address	23 CLARK ST, BOSTON, MA 02109-1182
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	61534-16
Date	Aug 2, 2019
Book Page	61534/16
Instrument	64319

Lender

Name	SALEM FIVE CENTS SAVINGS BANK
Type	Bank

Agreement

Type	Stand-Alone Refinance
Amount	Amount on Record

Tax Assessment & Valuation

The 2025 property tax bill for 23 Clark St was $24,481, up 4.4% 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
2025	$24,481.00 (+4.45%)	$2,114,100 (-1.69%) Land $593,900 Building $1,520,200
2024	$23,439.00 (-2.47%)	$2,150,400 (-3.9%) Land $593,900 Building $1,556,500
2023	$24,032.00	$2,237,600 Land $593,900 Building $1,643,700

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

FEMA maps place 23 Clark St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.

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
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 10 (0% premium discount)
Nearby Flood Policies	10 units insured incl. 8 condo units

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 23 Clark 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 917 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 2,000
Verizon Fixed Wireless · Fiber in parts of the area	1,000 / 75
Starry Fixed Wireless · Fiber in parts of the area	800 / 250
Netafy Fixed Wireless	500 / 150
T-Mobile Fixed Wireless	100 / 20

May also be available: Astound Broadband, AT&T.

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