821 Main St, Acton, MA 01720 Property Records

Middlesex County and Acton Town property record for 821 Main St, Acton, MA 01720

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 2,642 sqft · built 1987
Lot Size	0.92 acres (40,075 sqft)
Owner	Individual Name on Record
Last Sale	$567,000 (Jul 2017)
Tax Bill	$14,336 (2025)
Deeds & Mortgages	Aug 2021 Refinance Aug 2021 Refinance + 1 more
Flood Zone	Zone X (minimal risk)
APN	`ACTO M:00C5 B:0081 L:0005`

Property Details

APN / Parcel Number

Primary APN	`ACTO M:00C5 B:0081 L:0005`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	7 Rooms
Stories	2 Stories
Building Area	2,642 sqft Living Area
Gross Area	4,944 sqft

Exterior

Year Built	Built 1987
Effective Year Built	Effective 1987
Architectural Style	Colonial
Exterior Material	Wood Siding
Roof Type	Gable
Roof Material	Asphalt
Lot Area	40,075 sqft (0.92 acres)

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Forced Air with A/C
Heating Fuel	Oil

Location & Zoning

Street Address	821 MAIN ST
City	ACTON
State	MA
Zip	01720-5823
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R2
Legal Subdivision	PETER COHEN PLAN 522
Legal Block	81
Legal Lot Number	5
Jurisdiction	ACTON MA
Township / Civil Division	ACTON
Census Block Group	2
Census Block	2003
Census Tract	363105

Owner

Source: Middlesex County and Acton Town records, as of July 20, 2026

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

Owner of Record	Individual Name on Record
Mailing Address	821 MAIN ST, ACTON, MA 01720-5823
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Aug 6, 2021	Deed of Trust, Mortgage · Stand-Alone Refinance DIGITAL FCU
Aug 6, 2021	Deed of Trust, Mortgage · Stand-Alone Refinance DIGITAL FCU
Jul 24, 2017	Quit Claim Deed, Transfer DIGITAL FCU

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jul 24, 2017 · Amount on Record
Deed Sale	Jul 24, 2017 · Amount on Record
Prior Sale	Oct 26, 2001 · Amount on Record
Deed Book / Page	69653 / 477
Transfer Doc	069653-477
Record Updated	Oct 29, 2026

August 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ACTON MA
Property Address	821 MAIN ST, ACTON, MA 01720-5823
Transaction Type	Mortgage
Record Updated	Apr 3, 2026

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	00078421-1
Date	Aug 6, 2021
Book Page	78421/1
Instrument	177092

Lender

Name	DIGITAL FCU
Type	Credit Union

Agreement

Type	Stand-Alone Refinance
Amount	Amount Recorded
Term	361 Months
Due	Sep 1, 2051

August 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ACTON MA
Property Address	821 MAIN ST, ACTON, MA 01720-5823
Transaction Type	Mortgage
Record Updated	Aug 20, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	78421-1
Date	Aug 6, 2021
Book Page	78421/1
Instrument	177092

Lender

Name	DIGITAL FCU
Type	Credit Union

Agreement

Type	Stand-Alone Refinance
Amount	Amount Recorded
Term	361 Months
Due	Sep 1, 2051

July 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ACTON MA
Recording Date	Jul 24, 2017
Property Address	821 MAIN ST, ACTON, MA 01720-5823
Document Number	69653-477
Book / Page	69653 / 477
Instrument	115973
Transaction Type	Transfer
Record Updated	May 12, 2021

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$108.20
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	821 MAIN ST, ACTON, MA 01720-5823

Mortgage

Document Number	696530480
Date	Jul 24, 2017
Instrument	69653/0480

Lender

Name	DIGITAL FCU
Type	Credit Union

Agreement

Amount	Amount Recorded
Term	360 Months
Due	Jul 24, 2047

Tax Assessment & Valuation

Source: Middlesex County and Acton Town assessment roll, as of April 14, 2026

Property Jurisdictions

Type	Name
State	Massachusetts
County	Middlesex County
County Subdivision	Acton Town
Unified School District	Acton-Boxborough Regional School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$14,336.00 (+7.39%)	$835,900 (+4.38%) Land $286,100 Building $549,800	$906,300 (+1.56%)
2024	$13,349.00 (+2.39%)	$800,800 (+7.87%) Land $286,100 Building $514,700	$892,335
2023	$13,037.00	$742,400 Land $260,100 Building $482,300

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	Low lower than 80% of the US · above 57% of Massachusetts
Wildfire Likelihood	0.01% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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	ACTON WATER SUPPLY DISTRICT serves 21,285 people · EPA ID MA2002000
Water Source	Groundwater influenced by surface water
Last State Inspection	Oct 2024
Lead	4 ppb (2026) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	22 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 188 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 2,000
Verizon Fiber	980 / 880

Cell Coverage

5G (outdoors only) and 4G LTE

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