109 Windsor St, Cambridge, MA 02139 Property Records

Middlesex County and Cambridge City property record for 109 Windsor St, Cambridge, MA 02139

Property Summary

Property Type	Apartments (5+ Units)
Details	3 bd · 2 ba · 10,112 sqft · built 1910
Lot Size	0.107 acres (4,643 sqft)
Owner	2 Company Names on File
Last Sale	$627,000 (May 1998)
Tax Bill	$28,430 (2025)
Deeds & Mortgages	Sep 2019 Refinance
Flood Zone	Zone X (minimal risk)
APN	`74-24`

Property Details

APN / Parcel Number

Primary APN	`74-24`
Alternative APN	`CAMB M:00074 L:00024`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Units	8 Units
Stories	4 Stories
Building Area	10,112 sqft Living Area
Gross Area	12,640 sqft
1st Floor Area	2,528 sqft
Basement Area	2,528 sqft
Unfinished Basement	2,528 sqft

Exterior

Year Built	Built 1910
Effective Year Built	Effective 1910
Architectural Style	Condo/Apartment
Exterior Material	Brick
Construction Type	Brick
Roof Type	Flat
Roof Material	Tar & Gravel
Lot Area	4,643 sqft (0.107 acres)
Garage Type	Basement

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Hot Water
Heating Fuel	Gas

Location & Zoning

Street Address	109 WINDSOR ST
City	CAMBRIDGE
State	MA
Zip	02139-3643
Property Category	Residential
Property Type	Residential > Multi-Unit > Apartments (5+ Units)
Local Zoning Code	C-1
Legal Lot Number	24
Jurisdiction	CAMBRIDGE MA
Township / Civil Division	CAMBRIDGE
Census Block Group	1
Census Block	1019
Census Tract	353101

Owner

Source: Middlesex County and Cambridge City records · APN 74-24

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 Company Names on File
Mailing Address	30 ADAMS ST, MILTON, MA 02186-3412
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	May 07, 1998 · Amount on Record
Deed Sale	May 07, 1998 · Amount on Record
Record Updated	Jun 08, 2026

September 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CAMBRIDGE MA
Property Address	109 WINDSOR ST, CAMBRIDGE, MA 02139-3643
Transaction Type	Mortgage
Record Updated	Feb 05, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	73226-260
Date	Sep 04, 2019
Book Page	73226/260
Instrument	133298

Lender

Name	WEBSTER BANK
Type	Bank

Agreement

Type	Stand-Alone Refinance
Amount	Amount Recorded

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	$28,430.00 (+24.44%)	$4,477,200 (+16.01%) Land $1,792,000 Building $2,685,200
2024	$22,846.00 (-0.21%)	$3,859,200 (-1.22%) Land $1,832,000 Building $2,027,200
2023	$22,893.00	$3,906,700 Land $1,832,000 Building $2,074,700

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of September 10, 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Wildfire

Wildfire Risk	Not rated no burnable land within ember reach

Values are read at the parcel center point; lenders make the official flood determination.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 2,000
AT&T Fixed Wireless	100 / 20
T-Mobile USA Fixed Wireless	100 / 20

May also be available: Netafy, Radiate Holdings, Starry, Verizon.

Based on FCC filings for 53 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CAMBRIDGE WATER DEPARTMENT serves 118,214 people
Water Source	Surface water
Last State Inspection	Jun 2023
Lead	8 ppb (2021–2023) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.