20 Langdon St, Cambridge, MA 02138 Property Records

Middlesex County and Cambridge City property record for 20 Langdon St, Cambridge, MA 02138 · Last verified August 2026

Property Summary

Property Type	Duplex
Details	5 bd · 4.5 ba · 3,928 sqft · built 1873
Lot Size	0.083 acres (3,635 sqft)
Owner	2 Company Names on File
Last Sale	$90,000 (Oct 1994)
Tax Bill	$19,648 (2025)
Deeds & Mortgages	Feb 2022 Refinance Dec 2017 Line of Credit
Flood Zone	Zone X (minimal risk)
APN	`173-57`

Property Details

APN / Parcel Number

Primary APN	`173-57`
Alternative APN	`CAMB M:00173 L:00057`

Interior

Bedrooms	5 Beds
Full Baths	4.5 Baths
Half Baths	1 Half Bath
Total Rooms	14 Rooms
Units	2 Units
Stories	3 Stories
Building Area	3,928 sqft Living Area
Gross Area	5,935 sqft
1st Floor Area	1,563 sqft
Basement Area	1,521 sqft
Unfinished Basement	1,521 sqft
Central Vacuum	Central Vacuum

Exterior

Year Built	Built 1873
Effective Year Built	Effective 1873
Architectural Style	Victorian
Exterior Material	Wood Siding
Construction Type	Brick
Roof Type	Mansard
Roof Material	Slate
Lot Area	3,635 sqft (0.083 acres)
Parking Spaces	2 Parking Spaces
Deck Area	Deck Area

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Forced Air with A/C
Heating Fuel	Gas

Location & Zoning

Street Address	20 LANGDON ST
City	CAMBRIDGE
State	MA
Zip	02138-2505
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Legal Lot Number	57
Jurisdiction	CAMBRIDGE MA
Township / Civil Division	CAMBRIDGE
Census Block Group	1
Census Block	1012
Census Tract	354000

Owner

Source: Middlesex County and Cambridge City records · APN 173-57

Assessment roll updated April 14, 2026 · Last verified August 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 File
Mailing Address	20 LANGDON ST, CAMBRIDGE, MA 02138-2505
Owner Type	Company
Vesting	Tenants in Common

Deeds, Mortgages & Sale History

Date	Document
Feb 15, 2022	Deed of Trust, Mortgage · Stand-Alone Refinance CAMBRIDGE TRUST CO
Dec 15, 2017	Deed of Trust, Mortgage · Line of Credit CAMBRIDGE TR

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Oct 11, 1994 · Amount on Record
Deed Sale	Oct 11, 1994 · Amount on Record
Prior Sale	Aug 29, 1990 · Amount on Record
Last Transfer Date	Jun 11, 2024
Transfer Doc	0082871-90
Record Updated	Sep 20, 2026

February 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CAMBRIDGE MA
Property Address	20 LANGDON ST, CAMBRIDGE, MA 02138-2505
Transaction Type	Mortgage
Record Updated	Mar 04, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	079689-488
Date	Feb 15, 2022
Book Page	79689/488
Instrument	24703

Lender

Name	CAMBRIDGE TRUST CO
Type	Bank

Agreement

Type	Stand-Alone Refinance
Amount	Amount Recorded
Term	361 Months
Due	Mar 01, 2052

December 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CAMBRIDGE MA
Property Address	20 LANGDON ST, CAMBRIDGE, MA 02138-2505
Document Number	70417-566
Book / Page	070417 / 000566
Instrument Date	Dec 15, 2017
Transaction Type	Mortgage
Record Updated	Jan 11, 2018

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	70417-566
Date	Dec 21, 2017
Book Page	070417/000566
Instrument	6787

Lender

Name	CAMBRIDGE TR

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	240 Months
Due	Dec 20, 2037

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

Source: Middlesex County and Cambridge City records · Assessment roll updated April 14, 2026 · Last verified August 2026

Property Jurisdictions

Type	Name
State	Massachusetts
County	Middlesex County
Municipality	Cambridge City
Unified School District	Cambridge School District (PK - 12)

Tax Bill & Assessment History

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

Year	Tax Bill	Assessed Value
2025	$19,648.00 (+9.02%)	$3,094,100 (+1.64%) Land $1,156,800 Building $1,937,300
2024	$18,022.00 (+8.72%)	$3,044,300 (+7.63%) Land $1,205,600 Building $1,838,700
2023	$16,576.00	$2,828,600 Land $1,230,000 Building $1,598,600

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Middlesex County (25017C), updated September 10, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 250173540001, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Special Flood Hazard Area	No
Flood Hazard	Minimal
500-Year Floodplain	No
Community Rating System	Class 9 (5% premium discount)
Nearby Flood Policies	1 in force

Wildfire

Wildfire Risk	Not rated no burnable land in reach
Wildfire Likelihood	Negligible
Exposure	None beyond ember reach

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.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 782 locations within about half a mile of this property

Provider	Technology	Download / Upload (Mbps)
Xfinity	Cable	2,000 / 2,000
Verizon	Fixed Wireless	1,000 / 75
AT&T	Fixed Wireless	100 / 20
T-Mobile USA	Fixed Wireless	100 / 20

May also be available at this address: Radiate Holdings, Starry. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE

Nearby Properties on Langdon St

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures