166 Main St, Williamstown, MA 01267 Property Records

Berkshire County and Williamstown Town property record for 166 Main St, Williamstown, MA 01267

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 2,453 sqft · built 1950
Lot Size	1.1 acres (47,916 sqft)
Owner	2 Individual Names on File
Last Sale	$545,000 (Jul 2026)
Tax Bill	$5,831 (2026)
Deeds & Mortgages	Jul 2026 Sale & Mortgage Jul 2018 Sale & Mortgage
APN	`M_62165_940400`

Property Details

APN / Parcel Number

Primary APN	`M_62165_940400`
Alternative APNs	`WILL M:112.0 B:0015` `M:0112 P:0015`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	7 Rooms
Stories	2 Stories
Building Area	2,453 sqft Living Area
Gross Area	4,673 sqft
1st Floor Area	1,421 sqft
Basement Area	1,421 sqft
Unfinished Basement	1,421 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1950
Effective Year Built	Effective 1971
Architectural Style	Cape Cod
Exterior Material	Wood Siding
Construction Type	Concrete
Roof Type	Gable
Roof Material	Asphalt
Lot Area	47,916 sqft (1.1 acres)
Garage Type	Attached

Utilities, Heating & Cooling

Heating System	Hot Water
Heating Fuel	Oil

Location & Zoning

Account Number	M_62165_940400
Street Address	166 MAIN ST
City	WILLIAMSTOWN
State	MA
Zip	01267-2604
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	GR
Legal Block	15
Jurisdiction	WILLIAMSTOWN MA
Township / Civil Division	WILLIAMSTOWN
Census Block Group	4
Census Block	4009
Census Tract	920101

Owner

166 Main St is owned and occupied by two individuals who bought it in July 2026.

Source: Berkshire County and Williamstown Town records, as of October 20, 2026

Owner of Record	2 Individual Names on File
Mailing Address	166 MAIN ST, WILLIAMSTOWN, MA 01267-2604
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Tenants by the Entirety

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
Jul 15, 2026	Quit Claim Deed, Transfer · Conventional Mortgage LEADER BANK NA
Jul 13, 2018	Quit Claim Deed, Transfer ADAMS COMMUNITY BK

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 15, 2026 · Amount on File
Deed Sale	Jul 15, 2026 · Amount on File
Prior Sale	Jul 13, 2018 · Amount on File
Deed Document Number	20263842
Deed Book / Page	1923 / 655
Transfer Doc	001659-209
Record Updated	Oct 29, 2026

July 2026: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	WILLIAMSTOWN MA
Recording Date	Jul 15, 2026
Property Address	166 MAIN ST, WILLIAMSTOWN, MA 01267-2604
Document Number	0000003842
Book / Page	1923 / 655
Instrument Date	Jul 12, 2026
Instrument	20263842
Transaction Type	Transfer
Record Updated	Aug 5, 2026

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
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	Tenants by the Entirety
Address	166 MAIN ST, WILLIAMSTOWN, MA 01267-2604

Mortgage

Date	Jul 15, 2026

Lender

Name	LEADER BANK NA

Agreement

Type	Conventional Mortgage
Amount	Amount on Record

Interest

Rate	6.48%
Max Rate	-1%

July 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	WILLIAMSTOWN MA
Recording Date	Jul 13, 2018
Property Address	166 MAIN ST, WILLIAMSTOWN, MA 01267-2604
Document Number	1659-209
Book / Page	1659 / 209
Instrument	4011
Transaction Type	Transfer
Record Updated	May 11, 2021

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$52.37
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	166 MAIN ST, WILLIAMSTOWN, MA 01267-2604

Mortgage

Document Number	16590213
Date	Jul 13, 2018
Instrument	01659/0213

Lender

Name	ADAMS COMMUNITY BK

Agreement

Amount	Amount on Record
Term	360 Months
Due	Jul 13, 2048

Interest

Rate	3.38%
Max Rate At Change	80.1%
Max Rate	2.75%

Tax Assessment & Valuation

The 2026 property tax bill for 166 Main St was $5,831, up 6% from the year before.

Source: Berkshire County and Williamstown Town assessment roll, as of April 14, 2026

Property Jurisdictions

Type	Name
State	Massachusetts
County	Berkshire County
County Subdivision	Williamstown Town
Unified School District	Mount Greylock School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026	$5,831.00 (+6%)	$410,600 (+3.01%) Land $117,100 Building $293,500	$530,736
2025	$5,501.00	$398,600 Land $113,700 Building $284,900
2023	$5,263.00	$325,500 Land $97,100 Building $228,400

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

Flood

FEMA has no flood map on file for 166 Main St; there have been 9 flood claims nearby since 2005.

Source: FEMA National Flood Hazard Layer · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Not on file
Nearby Flood Policies	1 in force
Nearby Flood Claims	9 (2005–2011)
Claims Outside the SFHA	1 of 9
Most Recent Claim	Aug 2011 · Tropical Storm Irene
Claims by Event	Tropical Storm Irene, Aug 2011 · 8 claims

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

Wildfire risk around 166 Main St is low, with a 0.01% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 80% of the US · above 57% of Massachusetts
Wildfire Likelihood	0.01% annual chance
Exposure	Indirect 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	WILLIAMSTOWN WATER DEPT serves 7,326 people · EPA ID MA1341000
Water Source	Groundwater
Last State Inspection	May 2024
Lead	Under 1 ppb (2019–2021) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	2 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. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 54 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Spectrum Cable · Fiber in parts of the area	1,000 / 1,000
T-Mobile Fixed Wireless	100 / 20

May also be available: Verizon.

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