41 Walnut St, Unit 21, Waltham, MA 02453 Property Records

Middlesex County and Waltham City property record for 41 Walnut St, Unit 21, Waltham, MA 02453

Property Summary

Property Type	Condominium
Details	2 bd · 1 ba · 812 sqft · built 1970
Lot Size	0.446 acres (19,451 sqft)
Owner	2 Company Names on Record
Last Sale	$420,000 (Jun 2021)
Tax Bill	$4,068 (2026)
Deeds & Mortgages	Jun 2021 Sale Feb 2018 Sale
Flood Zone	Zone X (minimal risk)
APN	`211531`

Property Details

APN / Parcel Number

Primary APN	`211531`
Alternative APN	`WALT M:069 B:016 L:0005 021`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Total Rooms	4 Rooms
Building Area	812 sqft Living Area

Exterior

Year Built	Built 1970
Effective Year Built	Effective 2000
Architectural Style	Condo/Apartment
Exterior Material	Brick
Construction Type	Steel Frame
Roof Type	Flat
Roof Material	Tar & Gravel
Lot Area	19,451 sqft

Utilities, Heating & Cooling

Heating System	Hot Water
Heating Fuel	Gas

Location & Zoning

Account Number	211531
Street Address	41 WALNUT ST, 21
City	WALTHAM
State	MA
Zip	02453-4420
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Legal Block	16
Legal Lot Number	5 021
Jurisdiction	WALTHAM MA
Township / Civil Division	WALTHAM
Census Block Group	3
Census Block	3007
Census Tract	368500

Owner

Source: Middlesex County and Waltham City records, as of October 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	41 WALNUT ST, 21, WALTHAM, MA 02453-4420
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Revocable Trust

Deeds, Mortgages & Sale History

Date	Document
Jun 29, 2021	Condominium Deed, Transfer
Feb 2, 2018	Quit Claim Deed, Transfer

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 29, 2021 · Amount on Record
Deed Sale	Jun 29, 2021 · Amount on Record
Prior Sale	Feb 2, 2018 · Amount on Record
Deed Document Number	2021146632
Transfer Doc	70589-83
Record Updated	Oct 29, 2026

June 2021: Condominium Deed, Transfer

Document Type	Condominium Deed
Jurisdiction	WALTHAM MA
Recording Date	Jun 29, 2021
Property Address	41 WALNUT ST UNIT 21, 21, WALTHAM, MA 02453-4420
Document Number	078127-306
Book / Page	78127 / 306
Instrument Date	Jun 21, 2021
Instrument	146632
Transaction Type	Transfer
Record Updated	Jan 17, 2022

Transaction

Amount	Amount Recorded
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	Joint Tenants
Address	41 WALNUT ST UNIT 21, 21, WALTHAM, MA 02453-4420

February 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	WALTHAM MA
Recording Date	Feb 2, 2018
Property Address	41 WALNUT ST UNIT 21, 21, WALTHAM, MA 02453-4420
Document Number	70589-83
Book / Page	070589 / 000083
Instrument Date	Jan 31, 2018
Instrument	16466
Transaction Type	Transfer
Record Updated	Feb 20, 2018

Transaction

Amount	Amount Recorded
Tax	$1,586.88
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Husband and Wife
Address	7 RANGELEY RD WINCHESTER MA 018902610, WINCHESTER, MA 01890-2610

Tax Assessment & Valuation

Source: Middlesex County and Waltham City assessment roll, as of April 14, 2026

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026	$4,068.00 (+8.08%)	$394,200 (+2.84%) Building $394,200	$420,423 (-3.84%)
2025	$3,764.00 (+3.81%)	$383,300 (+1.91%) Building $383,300	$437,190 (+0.55%)
2024	$3,626.00 (-3%)	$376,100 (+3.84%) Building $376,100	$434,815
2023	$3,738.00	$362,200 Building $362,200

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

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
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

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	WALTHAM WATER DEPARTMENT serves 65,218 people · EPA ID MA3308000
Water Source	Purchased surface water from MWRA
Last State Inspection	Jun 2024
Lead	2 ppb (2025) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	1 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 812 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Verizon Fiber · Fixed Wireless in parts of the area	2,300 / 2,300
Xfinity Cable	2,000 / 2,000
Astound Broadband Cable · Fiber in parts of the area	1,500 / 50
T-Mobile Fixed Wireless	100 / 20

May also be available: AT&T.

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