Groton Town property record for 510 Thames St, Groton, CT 06340
| Property Type | Mixed Use Commercial Office / Residential |
|---|---|
| Details | 7 bd · 2 ba · 5,375 sqft · built 1920 |
| Lot Size | 0.15 acres (6,534 sqft) |
| Owner | Company Name on File |
| Last Sale | $385,000 (Jun 2022) |
| Tax Bill | $5,482 (2025) |
| Deeds & Mortgages | May 2025 Line of Credit Jun 2022 Sale & Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | GROT M:168806389895 |
| Primary APN | GROT M:168806389895 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 7 Beds |
|---|---|
| Full Baths | 2 Baths |
| Units | 8 Units |
| Stories | 3 Stories |
| Building Area | 5,375 sqft Gross Area |
| Basement Area | 1,272 sqft |
| Unfinished Basement | 1,272 sqft |
| Elevator | Elevator |
| Year Built | Built 1920 |
|---|---|
| Effective Year Built | Effective 1920 |
| Exterior Material | Wood Siding |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 6,534 sqft (0.15 acres) |
| Loading Dock | Loading Dock |
| Heating System | Forced Air with A/C |
|---|
| Account Number | 168806389895 |
|---|---|
| Street Address | 510 THAMES ST |
| City | GROTON |
| State | CT |
| Zip | 06340-3972 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Mixed Use Commercial Office / Residential |
| Local Zoning Code | GC |
| Jurisdiction | GROTON CT |
| Township / Civil Division | GROTON |
| Census Block Group | 2 |
| Census Block | 2028 |
| Census Tract | 702400 |
510 Thames St, a commercial property, is owned by a company that bought it in June 2022.
Source: Groton Town records, as of June 25, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 5 RHODES DR, NEW HYDE PARK, NY 11040-3525 |
| Owner Type | Company |
| Vesting | Company |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| May 7, 2025 | Deed of Trust, Mortgage · Line of Credit AMERICAN CMNTY BANK |
| Jun 24, 2022 | Warranty Deed, Transfer · Stand-Alone First Mortgage AMERICAN COMMUNITY BANK & TRUST |
| Jul 18, 2017 | Warranty Deed, Transfer · Commercial Mortgage CHARTER OAK FED CU |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jun 24, 2022 · Amount on File |
| Deed Sale | Jun 24, 2022 · Amount on File |
| Prior Sale | Jul 18, 2017 · Amount on File |
| Deed Book / Page | 1278 / 1196 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | GROTON CT |
| Property Address | 510 THAMES ST, GROTON, CT 06340-3972 |
| Transaction Type | Mortgage |
| Record Updated | Nov 25, 2025 |
| Name | Verified Name |
|---|
| Document Number | 001321-188 |
|---|---|
| Date | May 7, 2025 |
| Book Page | 1321/188 |
| Name | AMERICAN CMNTY BANK |
|---|
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | GROTON CT |
| Recording Date | Jun 24, 2022 |
| Property Address | 510 THAMES ST, GROTON, CT 06340-3972 |
| Document Number | 01278-1196 |
| Book / Page | 1278 / 1196 |
| Instrument Date | Jun 22, 2022 |
| Transaction Type | Transfer |
| Record Updated | Nov 20, 2025 |
| Amount | Amount on Record |
|---|---|
| Tax | $0.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|
| Document Number | 5142480038 |
|---|---|
| Date | Jun 24, 2022 |
| Instrument | 5142480038 |
| Name | AMERICAN COMMUNITY BANK & TRUST |
|---|---|
| Type | Bank |
| Type | Stand-Alone First Mortgage |
|---|---|
| Amount | Amount on Record |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | GROTON CT |
| Recording Date | Jul 18, 2017 |
| Property Address | 510 THAMES ST, GROTON, CT 06340-3972 |
| Document Number | 1186-728 |
| Book / Page | 1186 / 728 |
| Instrument | 4832680002 |
| Transaction Type | Transfer |
| Record Updated | May 21, 2021 |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $57.09 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|
| Document Number | 11860730 |
|---|---|
| Date | Jul 18, 2017 |
| Instrument | 01186/0730 |
| Name | CHARTER OAK FED CU |
|---|---|
| Type | Credit Union |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount on Record |
The 2025 property tax bill for 510 Thames St was $5,482.
Source: Groton Town assessment roll, as of June 25, 2026
| Type | Name |
|---|---|
| State | Connecticut |
| County Subdivision | Groton Town |
| Municipality | Groton City |
| Unified School District | Groton School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $5,482.00 | $189,630 Land $116,179 Building $73,451 | $132,741 Land $81,325 Building $51,416 |
| 2024 | $5,482.00 (+12.06%) | ||
| 2023 | $4,892.00 (+3.4%) | $189,630 (-) Land $84,700 Building $104,930 | |
| 2022 | $4,731.00 | $189,630 Land $84,700 Building $104,930 |
Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.
FEMA maps place 510 Thames St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective September 20, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 510 Thames St has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
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 | GROTON UTILITIES serves 30,200 people · EPA ID CT0590011 |
|---|---|
| Water Source | Surface water |
| 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 | None 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 295 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 7,000 / 7,000 |
| Xfinity Cable | 2,000 / 250 |
| Breezeline Cable | 1,000 / 50 |
| Verizon Fixed Wireless | 300 / 20 |
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