Middlesex County and Ayer Town property record for 20 Groton St, Ayer, MA 01432
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 720 sqft · built 1955 |
| Lot Size | 0.23 acres (10,019 sqft) |
| Owner | Individual Name on File |
| Last Sale | $252,000 (Apr 2007) |
| Tax Bill | $3,691 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | AYER M:026 B:0000 L:0136 |
| Primary APN | AYER M:026 B:0000 L:0136 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 720 sqft Living Area |
| Basement Area | 1,000 sqft |
| Unfinished Basement | 1,000 sqft |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 1988 |
| Architectural Style | Ranch |
| Exterior Material | Aluminum/Vinyl |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 10,019 sqft (0.23 acres) |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Oil |
| Street Address | 20 GROTON ST |
|---|---|
| City | AYER |
| State | MA |
| Zip | 01432-1143 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | GR |
| Legal Lot Number | 136 |
| Jurisdiction | AYER MA |
| Township / Civil Division | AYER |
| Census Block Group | 1 |
| Census Block | 1006 |
| Census Tract | 325102 |
20 Groton St is owned and occupied by an individual who bought it in April 2007.
Source: Middlesex County and Ayer Town records, as of July 20, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 20 GROTON ST, AYER, MA 01432-1143 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Apr 26, 2007 · Amount on File |
| Deed Sale | Apr 26, 2007 · Amount on File |
| Prior Sale | Nov 21, 2003 · Amount on File |
| Deed Document Number | 200776002 |
| Deed Book / Page | 49347 / 267 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 20 Groton St was $3,691.
Source: Middlesex County and Ayer Town assessment roll, as of April 14, 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Middlesex County |
| County Subdivision | Ayer Town |
| Unified School District | Ayer-Shirley School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $3,691.00 | $308,600 Land $140,300 Building $168,300 | $418,095 (+2.8%) |
| 2024 | $406,695 | ||
| 2023 | $3,319.00 | $267,200 Land $131,200 Building $136,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 20 Groton St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 10, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 20 Groton 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 |
| Adjoins Burnable Land | Yes |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | AYER DPW WATER DIVISION serves 8,479 people · EPA ID MA2019000 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jun 2024 |
| Lead | 1 ppb (2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 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 299 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
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