12 Douglas St, Cambridge, MA 02139 Property Records

Middlesex County and Cambridge City property record for 12 Douglas St, Cambridge, MA 02139 · Last verified April 2026

Property Summary

Property Type	Duplex
Details	3 bd · 2.5 ba · 1,652 sqft · built 1860
Lot Size	0.039 acres (1,679 sqft)
Owner	2 Trust Names on File
Tax Bill	$7,678 (2025)
Deeds & Mortgages	Oct 2018 Transfer Jan 2018 Line of Credit
Flood Zone	Zone X (minimal risk)
APN	`91-181`

Property Details

APN / Parcel Number

Primary APN	`91-181`
Alternative APN	`CAMB M:00091 L:00181`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Units	2 Units
Stories	2 Stories
Building Area	1,652 sqft Living Area
Gross Area	2,966 sqft
1st Floor Area	776 sqft
Attic	Attic
Attic Area	701 sqft
Basement Area	701 sqft
Unfinished Basement	701 sqft

Exterior

Year Built	Built 1860
Effective Year Built	Effective 1860
Architectural Style	Conventional
Exterior Material	Wood Siding
Construction Type	Brick
Roof Type	Gable
Roof Material	Asphalt
Lot Area	1,679 sqft (0.039 acres)
Deck Area	Deck Area

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Hot Water
Heating Fuel	Gas

Location & Zoning

Street Address	12 DOUGLAS ST
City	CAMBRIDGE
State	MA
Zip	02139-3404
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Legal Lot Number	181
Jurisdiction	CAMBRIDGE MA
Township / Civil Division	CAMBRIDGE
Census Block Group	1
Census Block	1009
Census Tract	353101

Owner

Source: Middlesex County and Cambridge City records · APN 91-181

Assessment roll updated April 14, 2026 · Last verified April 2026

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

Owner of Record	2 Trust Names on File
Mailing Address	12 DOUGLAS ST, CAMBRIDGE, MA 02139-3404
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Oct 31, 2018	Quit Claim Deed, Transfer Quitclaim
Jan 11, 2018	Deed of Trust, Mortgage · Line of Credit CAMBRIDGE TR

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Oct 31, 2018
Deed Sale	Oct 31, 2018
Prior Sale	Jul 03, 1984 · Amount on Record
Deed Document Number	2018167317
Deed Book / Page	71820 / 40
Transfer Doc	71820-40
Record Updated	Jun 08, 2026

October 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CAMBRIDGE MA
Recording Date	Oct 31, 2018
Property Address	12 DOUGLAS ST, CAMBRIDGE, MA 02139-3404
Document Number	71820-40
Book / Page	071820 / 000040
Instrument Date	Oct 02, 2018
Instrument	167317
Transaction Type	Transfer
Record Updated	Nov 22, 2018

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	12 DOUGLASS ST CAMBRIDGE MA 02163, CAMBRIDGE, MA 02163

January 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CAMBRIDGE MA
Property Address	12 DOUGLAS ST, CAMBRIDGE, MA 02139-3404
Document Number	70517-440
Book / Page	070517 / 000440
Instrument Date	Jan 11, 2018
Transaction Type	Mortgage
Record Updated	Feb 06, 2018

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	70517-440
Date	Jan 17, 2018
Book Page	070517/000440
Instrument	7373

Lender

Name	CAMBRIDGE TR

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	240 Months
Due	Jan 16, 2038

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

Source: Middlesex County and Cambridge City records · Assessment roll updated April 14, 2026 · Last verified April 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	$7,678.00 (+4.35%)	$1,209,200 (-2.71%) Land $631,800 Building $577,400
2024	$7,358.00 (+5.86%)	$1,242,900 (+4.78%) Land $687,000 Building $555,900
2023	$6,951.00	$1,186,200 Land $698,500 Building $487,700

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Middlesex County (25017C), updated September 10, 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

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; lenders make the official flood determination.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 910 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
T-Mobile USA	Fixed Wireless	100 / 20
AT&T	Fixed Wireless	100 / 20

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

Mobile Coverage

5G and 4G LTE

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