Middlesex County and Groton Town property record for 309 Old Dunstable Rd, Groton, MA 01450
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 4.5 ba · 5,203 sqft · built 1988 |
| Lot Size | 6.72 acres (293,008 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $832,000 (Feb 2017) |
| Tax Bill | $21,063 (2026) |
| Deeds & Mortgages | Feb 2017 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | GROT M:243 B:24 L |
| Primary APN | GROT M:243 B:24 L |
|---|---|
| Alternative APNs |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 11 Rooms |
| Stories | 3 Stories |
| Building Area | 5,203 sqft Living Area |
| Gross Area | 9,706 sqft |
| 1st Floor Area | 2,201 sqft |
| Basement Area | 2,032 sqft |
| Unfinished Basement | 2,032 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1988 |
|---|---|
| Effective Year Built | Effective 1988 |
| Architectural Style | Colonial |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 293,008 sqft (6.72 acres) |
| Pool Type | In-Ground Pool |
| Deck Area | Deck Area |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Oil |
| Account Number | 2253 |
|---|---|
| Street Address | 309 OLD DUNSTABLE RD |
| City | GROTON |
| State | MA |
| Zip | 01450-1509 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RA |
| Legal Block | 24 |
| Jurisdiction | GROTON MA |
| Township / Civil Division | GROTON |
| Census Block Group | 1 |
| Census Block | 1005 |
| Census Tract | 326102 |
309 Old Dunstable Rd is owned and occupied by two individuals who bought it in February 2017.
Source: Middlesex County and Groton Town records, as of October 20, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 309 OLD DUNSTABLE RD, GROTON, MA 01450-1509 |
| 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 | 2 Names on Deed |
|---|---|
| Last Sale | Feb 8, 2017 · Amount on File |
| Deed Sale | Feb 8, 2017 · Amount on File |
| Prior Sale | May 26, 1993 · Amount on File |
| Deed Book / Page | 68874 / 396 |
| Transfer Doc | 068874-396 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | GROTON MA |
| Recording Date | Feb 8, 2017 |
| Property Address | 309 OLD DUNSTABLE RD, GROTON, MA 01450-1509 |
| Document Number | 68874-396 |
| Book / Page | 68874 / 396 |
| Instrument | 21913 |
| Transaction Type | Transfer |
| Record Updated | May 12, 2021 |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $113.28 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Document Number | 688740399 |
|---|---|
| Date | Feb 8, 2017 |
| Instrument | 68874/0399 |
| Name | FAIRWAY INDEPENDENT MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Amount | Amount on Record |
|---|---|
| Term | 360 Months |
| Due | Feb 8, 2047 |
The 2026 property tax bill for 309 Old Dunstable Rd was $21,063, down 2.1% from the year before.
Source: Middlesex County and Groton Town assessment roll, as of April 14, 2026
| Type | Name |
|---|---|
| State | Massachusetts |
| County | Middlesex County |
| County Subdivision | Groton Town |
| Unified School District | Groton-Dunstable School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $21,063.00 (-2.11%) | $1,425,100 (+1.01%) Land $283,600 Building $1,141,500 | $1,228,540 (-) |
| 2025 | $21,516.00 (+2.44%) | $1,410,900 (+1.37%) Land $272,400 Building $1,138,500 | $1,228,540 (+2.79%) |
| 2024 | $21,004.00 (+8.1%) | $1,391,900 (+12.03%) Land $272,400 Building $1,119,500 | $1,195,195 |
| 2023 | $19,431.00 | $1,242,400 Land $272,400 Building $970,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 309 Old Dunstable Rd in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2001.
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 | 2 in force |
| Nearby Flood Claims | 1 (2001) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Jun 2001 |
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 risk around 309 Old Dunstable Rd is low, with a 0.02% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 64% of the US · above 99.6% of Massachusetts |
|---|---|
| Wildfire Likelihood | 0.02% 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: FCC Broadband Data Collection, based on 18 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fiber | 980 / 880 |
| T-Mobile Fixed Wireless | 100 / 20 |
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