Middlesex County and Acton Town property record for 133 River St, Acton, MA 01720 · Last verified April 2026
| Property Type | Government / Public Use |
|---|---|
| Lot Size | 2.39 acres (104,108 sqft) |
| Owner | Company Name on File |
| Last Sale | $465,000 (Apr 2005) |
| Flood Zone | Zone X (minimal risk) |
| APN | ACTO M:00H3 B:0238 L:0000 |
| Primary APN | ACTO M:00H3 B:0238 L:0000 |
|---|
| Lot Area | 104,108 sqft (2.39 acres) |
|---|
| Street Address | 133 RIVER ST |
|---|---|
| City | ACTON |
| State | MA |
| Zip | 01720-4322 |
| Property Category | Public Works |
| Property Type | Public Works > Government / Public Use |
| Legal Block | 238 |
| Jurisdiction | ACTON MA |
| Township / Civil Division | ACTON |
| Census Block Group | 1 |
| Census Block | 1018 |
| Census Tract | 363104 |
Source: Middlesex County and Acton Town records · APN ACTO M:00H3 B:0238 L:0000
Assessment roll updated April 14, 2026 · Last verified April 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 472 MAIN ST, ACTON, MA 01720-3939 |
| Owner Type | Company |
| Vesting | Government |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Apr 20, 2005 · Amount on Record |
| Deed Sale | Apr 20, 2005 · Amount on Record |
| Prior Sale | May 05, 2004 · Amount on Record |
| Deed Document Number | 200578150 |
| Deed Book / Page | 45023 / 231 |
| Record Updated | Jun 08, 2026 |
Source: Middlesex County and Acton Town records · Assessment roll updated April 14, 2026 · Last verified April 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Middlesex County |
| County Subdivision | Acton Town |
| Unified School District | Acton-Boxborough Regional School District (PK - 12) |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
| Year | Assessed Value |
|---|---|
| 2025 | $15,400 (-) Land $15,400 |
| 2024 | $15,400 (+10.79%) Land $15,400 |
| 2023 | $13,900 Land $13,900 |
Source: FEMA National Flood Hazard Layer, Middlesex County (25017C), updated September 10, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 250173631041, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| 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 500 ft |
| Flood Insurance Cost | Premium on Record median of 10 individual NFIP policies nearby |
| Nearby Flood Policies | 10 in force |
| Nearby Flood Claims | 9 (1980–2017) |
| Claims Outside the SFHA | 2 of 9 |
| Most Recent Claim | Aug 2017, rainfall accumulation |
| 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; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 187 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| Verizon | Fiber | 980 / 880 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE (outdoors only)
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