20 Smart St, Waltham, MA 02451 Property Records

Middlesex County and Waltham City property record for 20 Smart St, Waltham, MA 02451 · Last verified July 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bedrooms	3 Beds
Bathrooms	2.5 Baths
Year Built	Built 1992
Square Footage	2,033 sqft Living Area
Lot Size	3,999 sqft (0.092 acres)
Occupancy	Owner Occupied
Last Sale	$735,000 (2022)
Tax Bill	$6,996.00 (2025)

Owner

Source: Middlesex County and Waltham City records · APN 200044

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

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

Owner of Record	2 Individual Names on File
Mailing Address	20 SMART ST, WALTHAM, MA 02451-2114
Occupancy	Owner Occupied
Owner Type	Owner is an Individual, Couple or Unincorporated Entity
Vesting	Husband And Wife

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Jul 15, 2022 · Amount on Record
Deed Sale	Jul 15, 2022 · Amount on Record
Prior Sale	Aug 28, 1992 · Amount on Record
Deed Doc Number	2022108029
Deed Book / Page	80436 / 273
Record Refreshed	Sep 20, 2026

July 2022: Quit Claim Arm's Length for NE States, Transfer

Document Type	Quit Claim Arm's Length for NE States
Jurisdiction	WALTHAM MA
Recording Date	Jul 15, 2022
Property Address	20 SMART ST, WALTHAM, MA 02451-2114
Document Number	080436-273
Book / Page	80436 / 273
Instrument Date	Jul 15, 2022
Instrument	108029
Transaction Type	Transfer
Record Updated	Jul 29, 2022

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on File
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arms Length Transaction

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Tenant By Entirety
Address	20 SMART ST, WALTHAM, MA 02451-2114

Mortgage

Document Number	0000108030
Date	Jul 15, 2022
Instrument	108030

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company

Agreement

Type	Stand Alone First Mortgage
Amount	Amount Recorded

Tax Assessment & Valuation

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

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

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$6,996.00 (+4.5%)	$712,400 (+2.58%) Land $328,400 Building $384,000	$847,590 (+3.08%)
2024	$6,695.00 (+5%)	$694,500 (+12.42%) Land $312,800 Building $381,700	$822,225
2023	$6,376.00	$617,800 Land $285,600 Building $332,200

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

Flood

FEMA Flood Zone	Zone X
Flood Hazard	Minimal
500-Year Floodplain	No
Special Flood Hazard Area	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.

Property Details

APN / Parcel Number

Primary APN	`200044`
Alternative APN	`WALT M:031 B:002 L:008B`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Partial Baths	1 Partial Baths
Total Rooms	6 Rooms
Building Area	2,033 sqft Living Area
Gross Area	2,208 sqft Gross Area
Basement Area	624 sqft Basement
Unfinished Basement	624 sqft Unfinished
Stories	2 Stories

Exterior

Year Built	Built 1992
Effective Year Built	Effective 1992
Architectural Style	Colonial Style
Exterior Material	Aluminum/Vinyl Exterior
Construction Type	Frame Construction
Roof Construction	Gable Roof Construction
Roof Material	Asphalt Roof
Lot Area	3,999 sqft (0.092 acres)
Garage Type	Basement Garage
Deck Area	Deck Area

Utilities and HVAC

Cooling System	HVAC Cooling
Heating System	Hot Water Heating
Heating Fuel	Oil Heating Fuel

Location & Zoning

Account Number	200044
Street Address	20 SMART ST
City	WALTHAM
State	MA
Zip	02451-2114
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Block	2
Legal Lot Number	8B
Jurisdiction	WALTHAM MA
Minor Civil Division	WALTHAM
Census Blockgroup	2
Census Block	2020
Census Tract	368102