Norwich City property record for 21 Treadway Ave, Norwich, CT 06360
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 2 ba · 2,012 sqft · built 1885 |
| Lot Size | 0.16 acres (6,970 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $4,412 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | NORW M:93 B:4 L:34 |
| Primary APN | NORW M:93 B:4 L:34 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Units | 2 Units |
| Stories | 2 Stories |
| Building Area | 2,012 sqft Living Area |
| Gross Area | 3,262 sqft |
| 1st Floor Area | 1,036 sqft |
| Basement Area | 976 sqft |
| Unfinished Basement | 976 sqft |
| Year Built | Built 1885 |
|---|---|
| Effective Year Built | Effective 1885 |
| Architectural Style | Other |
| Exterior Material | Aluminum/Vinyl |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 6,970 sqft (0.16 acres) |
| Deck Area | Deck Area |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Gas |
| Account Number | 21840001 |
|---|---|
| Street Address | 21 TREADWAY AVE |
| City | NORWICH |
| State | CT |
| Zip | 06360-3619 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | MF |
| Legal Block | 4 |
| Legal Lot Number | 34 |
| Jurisdiction | NORWICH CT |
| Township / Civil Division | NORWICH |
| Census Block Group | 1 |
| Census Block | 1013 |
| Census Tract | 696500 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the Chelsea Parade Historic District listed 1989 · 573 contributing resources · NRIS 88003215 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
Source: Norwich 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 | Company Name on Record |
|---|---|
| Mailing Address | 327 COLD SPRING DR, WESTBROOK, CT 06498-1557 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Apr 8, 2010 |
| Deed Sale | Apr 8, 2010 |
| Deed Book / Page | 2609 / 234 |
| Record Updated | Oct 29, 2026 |
Source: Norwich City assessment roll, as of June 25, 2026
| Type | Name |
|---|---|
| State | Connecticut |
| County Subdivision / Municipality | Norwich City |
| Unified School District | Norwich School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $4,412.00 (-15.62%) | $129,200 (-) Land $27,100 Building $102,100 | $280,206 (+209.83%) |
| 2025 | $5,229.00 | $129,200 (+55.29%) Land $27,100 Building $102,100 | $90,440 Land $18,970 Building $71,470 |
| 2024 | $5,229.00 (+29.21%) | ||
| 2023 | $4,047.00 (+0.32%) | $83,200 (-) Land $19,200 Building $64,000 | |
| 2022 | $4,034.00 | $83,200 Land $19,200 Building $64,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective September 20, 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 80% of the US · above 55% of Connecticut |
|---|---|
| Wildfire Likelihood | 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 | NORWICH PUBLIC UTILITIES serves 36,163 people · EPA ID CT1040011 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Sep 2025 |
| Lead | Under 1 ppb (2025) action level 15 ppb |
| Water Quality | Total trihalomethanes resolved · Jul 2018 Haloacetic acids not recorded as resolved · Feb 2018 |
|---|---|
| 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 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T.
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