Killingly Town property record for 21 Rock Ave, Danielson, CT 06239 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.5 ba · 1,620 sqft · built 1950 |
| Lot Size | 1 acres (43,560 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $5,004 (2025) |
| Deeds & Mortgages | Sep 2017 Line of Credit |
| Flood Zone | Zone X (moderate risk) |
| APN | KILL M:137 B:9 |
| Primary APN | KILL M:137 B:9 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,620 sqft Living Area |
| Gross Area | 1,674 sqft |
| 1st Floor Area | 1,080 sqft |
| Basement Area | 1,080 sqft |
| Unfinished Basement | 1,080 sqft |
| Elevator | Elevator |
| Year Built | Built 1950 |
|---|---|
| Effective Year Built | Effective 1950 |
| Architectural Style | Cape Cod |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 43,560 sqft (1 acres) |
| Loading Dock | Loading Dock |
| Sauna | Sauna |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Gas |
| Sewer | Septic |
| Account Number | 2140 |
|---|---|
| Street Address | 21 ROCK AVE |
| City | DANIELSON |
| State | CT |
| Zip | 06239-1426 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Block | 9 |
| Jurisdiction | KILLINGLY CT |
| Township / Civil Division | KILLINGLY |
| Census Block Group | 4 |
| Census Block | 4002 |
| Census Tract | 904400 |
Source: Killingly Town records · APN KILL M:137 B:9
Assessment roll updated June 25, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 21 ROCK AVE, DANIELSON, CT 06239-1426 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | KILLINGLY CT |
| Property Address | 21 ROCK AVE, KILLINGLY, CT 06239-1426 |
| Transaction Type | Mortgage |
| Record Updated | Feb 07, 2021 |
| Name | Verified Name |
|---|
| Document Number | 1324-163 |
|---|---|
| Date | Sep 13, 2017 |
| Book Page | 1324/163 |
| Name | UNITED BANK |
|---|---|
| Type | Bank |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Sep 01, 2047 |
Source: Killingly Town records · Assessment roll updated June 25, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | Connecticut |
| County Subdivision | Killingly Town |
| Unified School District | Killingly School District (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $5,004.00 | $213,410 (+69.39%) Land $36,400 Building $177,010 | $149,387 Land $25,480 Building $123,907 |
| 2024 | $5,004.00 (+38.61%) | ||
| 2023 | $3,610.00 (+5.71%) | $125,990 (-0.72%) Land $30,100 Building $95,890 | |
| 2022 | $3,415.00 | $126,910 Land $27,090 Building $99,820 |
Source: FEMA National Flood Hazard Layer, County delivery 09015C, updated September 13, 2023 · 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 | Moderate |
| 500-Year Floodplain | Yes |
| Nearest Special Flood Hazard Area | Zone AE, within 100 ft |
| Wildfire Risk | Low above 20% of the US · above 55% of Connecticut |
|---|---|
| Wildfire Likelihood | About 1 in 10,000 per year |
| Exposure | Direct burnable vegetation at the parcel |
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 86 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Frontier | Fiber | 7,000 / 7,000 |
| Xfinity | Cable | 2,000 / 250 |
| Cogeco Cable Holdings II | Cable | 1,000 / 50 |
Availability varies by address; speeds are provider-advertised maximums, not measured.
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