21 Main St, Acton, MA 01720 Property Records

Middlesex County and Acton Town property record for 21 Main St, Acton, MA 01720 · Last verified July 2026

Property Summary

Property Type	Single Family Home
Details	2 bd · 2.5 ba · 1,599 sqft · built 1927
Lot Size	0.95 acres (41,390 sqft)
Owner	Individual Name on File
Last Sale	$147,000 (Nov 1996)
Tax Bill	$11,319 (2025)
Deeds & Mortgages	Apr 2019 Line of Credit Sep 2018 Line of Credit
Flood Zone	Zone X (minimal risk)
APN	`ACTO M:00I2 B:0036 L:0000`

Property Details

APN / Parcel Number

Primary APN	`ACTO M:00I2 B:0036 L:0000`

Interior

Bedrooms	2 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	6 Rooms
Stories	2 Stories
Building Area	1,599 sqft Living Area
Gross Area	2,636 sqft

Exterior

Year Built	Built 1927
Effective Year Built	Effective 1927
Architectural Style	Colonial
Exterior Material	Wood Siding
Roof Type	Gambrel
Roof Material	Asphalt
Lot Area	41,390 sqft (0.95 acres)

Utilities, Heating & Cooling

Heating System	Steam
Heating Fuel	Oil

Location & Zoning

Street Address	21 MAIN ST
City	ACTON
State	MA
Zip	01720-3505
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Block	36
Jurisdiction	ACTON MA
Township / Civil Division	ACTON
Census Block Group	3
Census Block	3007
Census Tract	363104

Owner

Source: Middlesex County and Acton Town records · APN ACTO M:00I2 B:0036 L:0000

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	Individual Name on File
Mailing Address	21 MAIN ST, ACTON, MA 01720-3505
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Apr 09, 2019	Deed of Trust, Mortgage · Line of Credit CITIZENS BK/RI
Sep 12, 2018	Deed of Trust, Mortgage · Line of Credit CITIZENS BK/RI

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Nov 25, 1996 · Amount on Record
Deed Sale	Nov 25, 1996 · Amount on Record
Record Updated	Sep 20, 2026

April 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ACTON MA
Property Address	21 MAIN ST, ACTON, MA 01720-3505
Document Number	72538-120
Instrument Date	Apr 09, 2019
Transaction Type	Mortgage
Record Updated	May 21, 2019
Title Company	NOT AVAILABLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	21 MAIN ST ACTON MA 017203505, ACTON, MA 01720-3505

Mortgage

Document Number	72538-120
Date	May 01, 2019
Book Page	072538/000120
Instrument	55437

Lender

Name	CITIZENS BK/RI
Type	Bank

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate

September 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ACTON MA
Property Address	21 MAIN ST, ACTON, MA 01720-3505
Document Number	71662-153
Instrument Date	Sep 12, 2018
Transaction Type	Mortgage
Record Updated	Jan 16, 2019

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	21 MAIN ST ACTON MA 017203505, ACTON, MA 01720-3505

Mortgage

Document Number	71662-153
Date	Sep 25, 2018
Book Page	071662/000153
Instrument	147848

Lender

Name	CITIZENS BK/RI
Type	Bank

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

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

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	$11,319.00 (+6.84%)	$660,000 (+3.86%) Land $272,800 Building $387,200	$648,470 (+26.27%)
2024	$10,594.00 (+2.61%)	$635,500 (+8.08%) Land $272,800 Building $362,700	$513,570
2023	$10,325.00	$588,000 Land $247,900 Building $340,100

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Middlesex County (25017C), updated September 10, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 250173631043, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Special Flood Hazard Area	No
Flood Hazard	Minimal
500-Year Floodplain	No
Nearest Special Flood Hazard Area	Zone AE, within 100 ft
Nearby Flood Policies	4 in force
Nearby Flood Claims	1 (1979)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Jul 1979, rainfall accumulation

Wildfire

Wildfire Risk	Low above 6% of the US · above 14% of Massachusetts
Wildfire Likelihood	Less than 1 in 10,000 per year
Exposure	Direct burnable vegetation at the parcel

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.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 59 locations within about half a mile of this property

Provider	Technology	Download / Upload (Mbps)
Verizon	Fiber	2,300 / 2,300
Xfinity	Cable	2,000 / 250
T-Mobile USA	Fixed Wireless	100 / 20

Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE

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