Derby City property record for 173 Harold Ave, Derby, CT 06418
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,092 sqft · built 1960 |
| Lot Size | 0.21 acres (9,148 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $130,500 (Mar 1989) |
| Tax Bill | $7,865 (2026) |
| Deeds & Mortgages | Mar 2018 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | DERB M:3 B:6 L:23 |
| Primary APN | DERB M:3 B:6 L:23 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,092 sqft Living Area |
| 1st Floor Area | 1,092 sqft |
| Basement Area | 1,092 sqft |
| Unfinished Basement | 592 sqft |
| Year Built | Built 1960 |
|---|---|
| Effective Year Built | Effective 1960 |
| Architectural Style | Ranch |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Lot Area | 9,148 sqft (0.21 acres) |
| Garage Type | Attached |
| Deck Area | Deck Area |
| Cooling System | HVAC |
|---|---|
| Heating System | Hot Water |
| Heating Fuel | Oil |
| Sewer | Septic |
| Account Number | 558 |
|---|---|
| Street Address | 173 HAROLD AVE |
| City | DERBY |
| State | CT |
| Zip | 06418-2341 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R-4 |
| Legal Block | 6 |
| Legal Lot Number | 23 |
| Jurisdiction | DERBY CT |
| Township / Civil Division | DERBY |
| Census Block Group | 1 |
| Census Block | 1005 |
| Census Tract | 120100 |
173 Harold Ave is owned and occupied by two individuals who bought it in March 1989.
Source: Derby City records, as of October 20, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 173 HAROLD AVE, DERBY, CT 06418-2341 |
| 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 | Mar 23, 1989 · Amount on File |
| Deed Sale | Mar 23, 1989 · Amount on File |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DERBY CT |
| Property Address | 173 HAROLD AVE, DERBY, CT 06418-2341 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Name | Verified Name |
|---|
| Document Number | 773-80 |
|---|---|
| Date | Mar 6, 2018 |
| Book Page | 773/80 |
| Name | NATIONSTAR MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Amount | Amount on Record |
|---|---|
| Term | 240 Months |
| Due | Mar 1, 2038 |
The 2026 property tax bill for 173 Harold Ave was $7,865, up 26.9% from the year before.
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 | $7,865.00 (+26.94%) | $204,610 (+42.65%) Land $47,110 Building $157,500 | $321,851 (+220.57%) |
| 2025 | $6,196.00 | $143,430 Land $42,730 Building $100,700 | $100,401 Land $29,911 Building $70,490 |
| 2024 | $6,196.00 (+11.92%) | ||
| 2023 | $5,536.00 | $143,430 (-) Land $42,700 Building $100,730 | |
| 2022 | $5,536.00 | $143,430 Land $42,700 Building $100,730 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 173 Harold Ave in Zone X, an area of minimal flood risk.
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.
Wildfire risk around 173 Harold Ave is low, with less than 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 94% of the US · lower than 90% of Connecticut |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 | AQUARION-EAST DERBY private · serves 1,101 people · EPA ID CT0378011 |
|---|---|
| Water Source | Purchased surface water from REGIONAL WATER AUTHORITY |
| Last State Inspection | Nov 2024 |
| Lead | Under 1 ppb (2021–2023) 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 339 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 |
May also be available: T-Mobile.
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