Derby City property record for 6 Mountain St, Derby, CT 06418
| Property Type | Medical Building |
|---|---|
| Details | 2,024 sqft · built 1938 |
| Lot Size | 0.17 acres (7,405 sqft) |
| Owner | Company Name on File |
| Tax Bill | $6,800 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | DERB M:8 B:9 L:248 |
| Primary APN | DERB M:8 B:9 L:248 |
|---|---|
| Alternative APNs |
|
| Stories | 2 Stories |
|---|---|
| Building Area | 2,024 sqft Total Area |
| Gross Area | 2,648 sqft |
| Basement Area | 624 sqft |
| Unfinished Basement | 624 sqft |
| Year Built | Built 1938 |
|---|---|
| Effective Year Built | Effective 1938 |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Lot Area | 7,405 sqft (0.17 acres) |
| Heating System | Hot Water |
|---|---|
| Sewer | Septic |
| Account Number | 4823 |
|---|---|
| Street Address | 6 MOUNTAIN ST |
| City | DERBY |
| State | CT |
| Zip | 06418-1308 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Medical Building |
| Local Zoning Code | R-5 |
| Legal Block | 9 |
| Legal Lot Number | 248 |
| Jurisdiction | DERBY CT |
| Township / Civil Division | DERBY |
| Census Block Group | 1 |
| Census Block | 1004 |
| Census Tract | 120200 |
6 Mountain St, a commercial property, is owned by a company.
Source: Derby City records, as of October 20, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 130 DIVISION ST, DERBY, CT 06418-1326 |
| Owner Type | Company |
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 | Name on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 6 Mountain St was $6,800, up 74.7% 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 | $6,800.00 (+74.72%) | $176,890 (+96.33%) Land $40,670 Building $136,220 | |
| 2025 | $3,892.00 | $90,100 Land $32,090 Building $58,010 | $128,714 Land $45,843 Building $82,871 |
| 2024 | $3,892.00 | ||
| 2023 | $90,100 (-) Land $32,140 Building $57,960 | ||
| 2022 | $90,100 Land $32,140 Building $57,960 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 6 Mountain St 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 6 Mountain St 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 95% of the US · lower than 92% 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 | 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 353 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 |
May also be available: AT&T, T-Mobile, Verizon.
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