Middlesex County and Acton Town property record for 604 Old Stone Brook, Acton, MA 01718
| Property Type | Condominium |
|---|---|
| Details | 2 bd · 1.5 ba · 1,080 sqft · built 1972 |
| Lot Size | 6.31 acres (275,244 sqft) |
| Owner | 2 Company Names on File |
| Tax Bill | $5,802 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | ACTO M:00B4 B:0112 L:0076 |
| Primary APN | ACTO M:00B4 B:0112 L:0076 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Stories | 2 Stories |
| Building Area | 1,080 sqft Living Area |
| Gross Area | 1,692 sqft |
| Year Built | Built 1972 |
|---|---|
| Effective Year Built | Effective 1972 |
| Architectural Style | Other |
| Exterior Material | Wood Siding |
| Roof Type | Shed Roof |
| Roof Material | Asphalt |
| Lot Area | 275,244 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Street Address | 604 OLD STONE BRK |
|---|---|
| City | ACTON |
| State | MA |
| Zip | 01718-1017 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Condominium |
| Local Zoning Code | RA |
| Legal Block | 112 |
| Legal Lot Number | 76 |
| Jurisdiction | ACTON MA |
| Township / Civil Division | ACTON |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 363106 |
Source: Middlesex County and Acton Town assessment roll, as of April 14, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 102 KRISTIN DRIVE EXT, CHELMSFORD, MA 01824-4722 |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Transfer Date | Mar 21, 2025 |
| Transfer Doc | 084137-117 |
| Record Updated | Sep 20, 2026 |
Source: Middlesex County and Acton Town assessment roll, as of April 14, 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Middlesex County |
| County Subdivision | Acton Town |
| Unified School District | Acton-Boxborough Regional School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $5,802.00 (+10.01%) | $338,300 (+6.92%) Building $338,300 | $404,415 (-0.02%) |
| 2024 | $5,274.00 (+10.43%) | $316,400 (+16.32%) Building $316,400 | $404,510 |
| 2023 | $4,776.00 | $272,000 Building $272,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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.
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 |
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 |
| 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.
Source: FCC Broadband Data Collection, based on 52 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 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
5G and 4G LTE (outdoors only)
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