23 Upton St, Boston, MA 02118 Property Records

Suffolk County and Boston City property record for 23 Upton St, Boston, MA 02118

Property Summary

Property Type	Exempt (Full or Partial)
Details	1,776 sqft · built 2020
Lot Size	0.041 acres (1,776 sqft)
Owner	2 Company Names on Record
Last Sale	$2,595,000 (Mar 2022)
Tax Bill	$20,639 (2022)
Deeds & Mortgages	Mar 2022 Sale & Mortgage Dec 2021 Sale & Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`CBOS W:03 P:06961 S:000`

Property Details

APN / Parcel Number

Primary APN	`CBOS W:03 P:06961 S:000`

Interior

Units	3 Units
Stories	5 Stories
Building Area	1,776 sqft Total Area
Gross Area	4,771 sqft

Exterior

Year Built	Built 2020
Effective Year Built	Effective 2020
Architectural Style	Other
Exterior Material	Brick
Construction Type	Brick
Roof Type	Flat
Roof Material	Other
Lot Area	1,776 sqft (0.041 acres)

Location & Zoning

Street Address	23 UPTON ST
City	BOSTON
State	MA
Zip	02118-4682
Property Category	Other
Property Type	Other > Exempt (Full or Partial)
Local Zoning Code	CM
Jurisdiction	BOSTON MA
Township / Civil Division	BOSTON
Census Block Group	1
Census Block	1002
Census Tract	70502

Historic Designation

Source: NPS National Register of Historic Places, as of August 1, 2026

Historic District	Within the South End District (Boundary Increase II) listed 2025 · 8 contributing resources · NRIS 73000324

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

Owner

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

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Company Names on Record
Mailing Address	NEWBURY ST, BOSTON, MA 02116
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Mar 25, 2022	Condominium Deed, Transfer · Stand-Alone First Mortgage UBS BANK USA
Dec 29, 2021	Condominium Deed, Transfer · Stand-Alone First Mortgage FIRST REPUBLIC BANK
Feb 26, 2019	Quit Claim Deed, Transfer CONVENTUS LLC
Nov 28, 2017	Quit Claim Deed, Transfer Quitclaim

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Mar 25, 2022 · Amount on Record
Deed Sale	Mar 25, 2022 · Amount on Record
Prior Sale	Dec 29, 2021 · Amount on Record
Deed Document Number	202225465
Deed Book / Page	67378 / 76
Transfer Doc	58849-273
Record Updated	Sep 20, 2026

March 2022: Condominium Deed, Transfer

Document Type	Condominium Deed
Jurisdiction	BOSTON MA
Recording Date	Mar 25, 2022
Property Address	23 UPTON ST, BOSTON, MA 02118-1609
Document Number	0067378-76
Book / Page	67378 / 76
Instrument Date	Mar 25, 2022
Instrument	25465
Transaction Type	Transfer
Record Updated	Sep 18, 2023

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV 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	23 UPTON ST # 2, 2, BOSTON, MA 02118-1609

Mortgage

Document Number	0000025466
Date	Mar 25, 2022
Instrument	25466

Lender

Name	UBS BANK USA
Type	Bank

Agreement

Type	Stand-Alone First Mortgage
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Rate	2.38%
Type Change Date	Apr 1, 2029
Max Rate At Change	3%
Index	Other
Margin	3

December 2021: Condominium Deed, Transfer

Document Type	Condominium Deed
Jurisdiction	BOSTON MA
Recording Date	Dec 29, 2021
Property Address	23 UPTON ST, BOSTON, MA 02118-1609
Document Number	066939-183
Book / Page	66939 / 183
Instrument Date	Dec 28, 2021
Instrument	141161
Transaction Type	Transfer
Record Updated	Sep 18, 2023

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV 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	74 TERRACE HILL RD, GILFORD, NH 03249-7630

Mortgage

Document Number	0000141162
Date	Dec 29, 2021
Instrument	141162

Lender

Name	FIRST REPUBLIC BANK
Type	Bank

Agreement

Type	Stand-Alone First Mortgage
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Rate	2.15%
Type Change Date	Jan 1, 2029
Max Rate At Change	2.5%
Index	Other

February 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	BOSTON MA
Recording Date	Feb 26, 2019
Property Address	23 UPTON ST, BOSTON, MA 02118-1609
Document Number	60786-222
Book / Page	060786 / 000222
Instrument Date	Feb 15, 2019
Instrument	14348
Transaction Type	Transfer
Record Updated	Mar 12, 2019

Transaction

Amount	Amount Recorded
Loan-to-Value (LTV)	LTV on Record
Tax	$18,012.00
Amount Accuracy	Confirmed
Additional	Quitclaim Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	18 NEWBURY ST #4 BOSTON MA 021163246, 4, BOSTON, MA 02116-3246

Mortgage

Document Number	60786-224
Date	Feb 26, 2019
Book Page	060786/000224
Instrument	14349

Lender

Name	CONVENTUS LLC

Agreement

Amount	Amount Recorded

November 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	BOSTON MA
Recording Date	Nov 28, 2017
Property Address	23 UPTON ST, BOSTON, MA 02118-1609
Document Number	58849-273
Book / Page	058849 / 000273
Instrument Date	Nov 19, 2017
Instrument	5075
Transaction Type	Transfer
Record Updated	Jan 3, 2018

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	33 MAUGUS HILL RD WELLESLEY HILLS MA 024817605, WELLESLEY HILLS, MA 02481-7605

Tax Assessment & Valuation

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
2022	$20,639.00

Flood

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
Community Rating System	Class 10 (0% premium discount)
Nearby Flood Policies	4 units insured incl. 4 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

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 1,232 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 2,000
Netafy Fixed Wireless	1,000 / 1,000
Verizon Fiber · Fixed Wireless in parts of the area	980 / 880
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20

May also be available: Astound Broadband, Starry.

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