40 Keith St, Watertown, MA 02472 Property Records

Middlesex County and Watertown City property record for 40 Keith St, Watertown, MA 02472

Property Summary

Property Type	Duplex
Details	4 bd · 2 ba · 1,824 sqft · built 1922
Lot Size	0.075 acres (3,273 sqft)
Owner	2 Company Names on Record
Tax Bill	$10,540 (2026)
Deeds & Mortgages	Jul 2026 Transfer
Flood Zone	Zone X (minimal risk)
APN	`66550-23`

Property Details

APN / Parcel Number

Primary APN	`66550-23`
Alternative APNs	`WATE M:1601 B:0035 L:0001` `4007`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	10 Rooms
Units	2 Units
Stories	2 Stories
Building Area	1,824 sqft Living Area
Gross Area	4,081 sqft
Basement Area	912 sqft
Unfinished Basement	912 sqft

Exterior

Year Built	Built 1922
Effective Year Built	Effective 1922
Architectural Style	Other
Exterior Material	Other
Construction Type	Frame
Roof Type	Gable
Roof Material	Asphalt
Lot Area	3,273 sqft (0.075 acres)

Utilities, Heating & Cooling

Heating System	Steam
Heating Fuel	Oil

Location & Zoning

Account Number	4007
Street Address	40 KEITH ST
City	WATERTOWN
State	MA
Zip	02472-2907
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Local Zoning Code	T
Legal Block	35
Legal Lot Number	1
Jurisdiction	WATERTOWN MA
Township / Civil Division	WATERTOWN TOWN
Census Block Group	4
Census Block	4006
Census Tract	370301

Owner

Source: Middlesex County and Watertown City records, as of October 20, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	2 Company Names on Record
Mailing Address	40 KEITH ST, WATERTOWN, MA 02472-2907
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Living Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Sep 4, 2013
Deed Sale	Sep 4, 2013
Deed Document Number	201319
Deed Book / Page	62580 / 88
Last Transfer Date	Jul 8, 2026
Transfer Doc	0000090215
Record Updated	Oct 29, 2026

July 2026: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	WATERTOWN MA
Recording Date	Jul 21, 2026
Property Address	40 KEITH ST, WATERTOWN, MA 02472-2907
Document Number	0000090215
Book / Page	85905 / 545
Instrument Date	Jul 8, 2026
Instrument	202690215
Transaction Type	Transfer
Record Updated	Aug 31, 2026

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Quitclaim

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026	$10,540.00 (+6.86%)	$863,900 (+2.31%) Land $499,000 Building $364,900	$849,192
2025	$9,863.00 (+10.32%)	$844,400 (+10.51%) Land $499,000 Building $345,400
2024	$8,940.00 (-11.01%)	$764,100 (+3.28%) Land $488,000 Building $276,100
2023	$10,046.00	$739,800 Land $466,700 Building $273,100

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	WATERTOWN DEPARTMENT OF PUBLIC WORKS serves 35,985 people · EPA ID MA3314000
Water Source	Purchased surface water from MWRA
Last State Inspection	Oct 2025
Lead	1 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	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 1,030 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
T-Mobile Fixed Wireless	100 / 20

May also be available: Astound Broadband, AT&T, Starry.

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