355 Main St, Cambridge, MA 02142 Property Records

Middlesex County and Cambridge City property record for 355 Main St, Cambridge, MA 02142

Property Summary

Property Type	Office Building
Details	273,840 sqft · built 1982
Lot Size	1.13 acres (49,395 sqft)
Owner	2 Company Names on File
Tax Bill	$2,194,047 (2025)
Deeds & Mortgages	Jan 2024 Refinance May 2018 Transfer
Flood Zone	Zone X (minimal risk)
APN	`44-105`

Property Details

APN / Parcel Number

Primary APN	`44-105`
Alternative APNs	`CAMB M:00044 L:00105` `M:00044 L:00079`

Interior

Units	13 Units
Stories	13 Stories
Building Area	273,840 sqft Total Area
1st Floor Area	26,880 sqft
Basement Area	26,880 sqft
Unfinished Basement	26,880 sqft

Exterior

Year Built	Built 1982
Effective Year Built	Effective 1982
Exterior Material	Brick
Construction Type	Steel Frame
Roof Type	Flat
Roof Material	Other
Lot Area	49,395 sqft (1.13 acres)

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Hot Water
Heating Fuel	Gas

Location & Zoning

Street Address	355 MAIN ST
City	CAMBRIDGE
State	MA
Zip	02142-1062
Property Category	Commercial
Property Type	Commercial > Office > Office Building
Local Zoning Code	MXD
Legal Lot Number	105
Jurisdiction	CAMBRIDGE MA
Township / Civil Division	CAMBRIDGE
Census Block Group	1
Census Block	1004
Census Tract	353102

Owner

355 Main St, a commercial property, is owned by a company that acquired it in May 2018.

Source: Middlesex County and Cambridge City records, as of April 14, 2026

Owner of Record	2 Company Names on File
Mailing Address	800 BOYLSTON ST, 1900, BOSTON, MA 02199-8101
Owner Type	Company
Vesting	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
Jan 26, 2024	Deed of Trust, Mortgage · Stand-Alone Refinance LANDESBANK BADEN-WURT
May 2, 2018	Quit Claim Deed, Transfer Quitclaim

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 2, 2018
Deed Sale	May 2, 2018
Prior Sale	Jun 5, 2013
Deed Document Number	201861187
Deed Book / Page	70957 / 65
Record Updated	Jun 8, 2026

January 2024: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CAMBRIDGE MA
Property Address	355 MAIN ST, CAMBRIDGE, MA 02142-1062
Transaction Type	Mortgage
Record Updated	Feb 9, 2024

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	082433-236
Date	Jan 26, 2024
Book Page	82433/236
Instrument	9014

Lender

Name	LANDESBANK BADEN-WURT

Agreement

Type	Stand-Alone Refinance
Amount	Amount on Record

May 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CAMBRIDGE MA
Recording Date	May 2, 2018
Property Address	355 MAIN ST, CAMBRIDGE, MA 02142-1062
Document Number	70957-65
Book / Page	070957 / 000065
Instrument Date	May 1, 2018
Instrument	61187
Transaction Type	Transfer
Record Updated	May 23, 2018

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	800 BOYLSTON ST #1900 BOSTON MA 021998101, 1900, BOSTON, MA 02199-8101

Tax Assessment & Valuation

The 2025 property tax bill for 355 Main St was $2,194,047, down 0.3% from the year before.

Source: Middlesex County and Cambridge City assessment roll, as of April 14, 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

Year	Tax Bill
2025	$2,194,047.00 (-0.27%)
2024	$2,199,877.00

Flood

FEMA maps place 355 Main St in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective September 10, 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 9 (5% premium discount)
Nearby Flood Policies	1 in force

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 355 Main 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	CAMBRIDGE WATER DEPARTMENT serves 118,214 people · EPA ID MA3049000
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, 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 460 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 2,000
Netafy Fixed Wireless	641 / 143
T-Mobile Fixed Wireless	100 / 20

May also be available: Astound Broadband, Starry, Verizon.

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