Derby City property record for 21 Osullivan Rd, Derby, CT 06418
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,484 sqft · built 1986 |
| Lot Size | 0.38 acres (16,553 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $425,000 (Apr 2024) |
| Tax Bill | $10,978 (2026) |
| Deeds & Mortgages | Apr 2024 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | DERB M:4 B:5 L:75 |
| Primary APN | DERB M:4 B:5 L:75 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,484 sqft Living Area |
| Basement Area | 1,300 sqft |
| Unfinished Basement | 750 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1986 |
|---|---|
| Effective Year Built | Effective 1986 |
| Architectural Style | Raised Ranch |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Lot Area | 16,553 sqft (0.38 acres) |
| Garage Type | Basement |
| Cooling System | HVAC |
|---|---|
| Heating System | Hot Water |
| Heating Fuel | Oil |
| Sewer | Septic |
| Account Number | 3265 |
|---|---|
| Street Address | 21 OSULLIVAN RD |
| City | DERBY |
| State | CT |
| Zip | 06418-2228 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R-3 |
| Legal Block | 5 |
| Legal Lot Number | 75 |
| Jurisdiction | DERBY CT |
| Township / Civil Division | DERBY |
| Census Block Group | 2 |
| Census Block | 2011 |
| Census Tract | 120100 |
Source: Derby City records, as of October 20, 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 Record |
|---|---|
| Mailing Address | 21 OSULLIVAN RD, DERBY, CT 06418-2228 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Apr 24, 2024 · Amount on Record |
| Deed Sale | Apr 24, 2024 · Amount on Record |
| Deed Document Number | 2024462 |
| Deed Book / Page | 924 / 56 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed |
|---|---|
| Jurisdiction | DERBY CT |
| Recording Date | Apr 24, 2024 |
| Property Address | 21 OSULLIVAN RD, DERBY, CT 06418-2228 |
| Document Number | 0000924-56 |
| Book / Page | 924 / 56 |
| Instrument Date | Apr 22, 2024 |
| Instrument | 462 |
| Transaction Type | Transfer |
| Record Updated | May 9, 2024 |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|
| Document Number | 0000000463 |
|---|---|
| Date | Apr 24, 2024 |
| Instrument | 463 |
| Name | PRIME LENDING INC |
|---|---|
| Type | Mortgage Company |
| Type | Stand-Alone First Mortgage |
|---|---|
| Amount | Amount Recorded |
Source: Derby City assessment roll, as of September 25, 2026
| Type | Name |
|---|---|
| State | Connecticut |
| County Subdivision / Municipality | Derby City |
| Unified School District | Derby School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $10,978.00 (+31.21%) | $285,600 (+47.45%) Land $48,930 Building $236,670 | $461,092 (+240.08%) |
| 2025 | $8,367.00 | $193,690 (-) Land $45,490 Building $148,200 | $135,583 Land $31,843 Building $103,740 |
| 2024 | $8,367.00 (+11.92%) | ||
| 2023 | $7,476.00 | $193,690 Land $45,570 Building $148,120 |
Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.
Source: FEMA National Flood Hazard Layer, effective January 25, 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 94% of the US · lower than 90% of Connecticut |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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 | REGIONAL WATER AUTHORITY serves 418,900 people · EPA ID CT0930011 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jun 2024 |
| Lead | Under 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 262 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 7,000 / 7,000 |
| GoNetspeed Fiber | 2,000 / 2,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
5G (outdoors only) and 4G LTE
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