Norwalk City property record for 21 4th St, Norwalk, CT 06855
| Property Type | Duplex |
|---|---|
| Details | 2 bd · 2 ba · 1,299 sqft · built 1925 |
| Lot Size | 0.17 acres (7,405 sqft) |
| Owner | Individual Name on File |
| Last Sale | $229,000 (Nov 1986) |
| Tax Bill | $10,601 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | D:3 B:58 L:17 |
| Primary APN | D:3 B:58 L:17 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Units | 2 Units |
| Stories | 2 Stories |
| Building Area | 1,299 sqft Living Area |
| Gross Area | 2,775 sqft |
| 1st Floor Area | 675 sqft |
| Attic | Attic |
| Attic Area | 624 sqft |
| Basement Area | 624 sqft |
| Unfinished Basement | 499 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1925 |
|---|---|
| Effective Year Built | Effective 1969 |
| Architectural Style | Colonial |
| Exterior Material | Other |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 7,405 sqft (0.17 acres) |
| Garage Type | Detached |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Gas |
| Account Number | 8739 |
|---|---|
| Street Address | 21 4TH ST |
| City | NORWALK |
| State | CT |
| Zip | 06855-2403 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | C |
| Legal Subdivision | AUTUMN RDG CONDO |
| Legal Block | 58 |
| Legal Lot Number | 17 |
| Jurisdiction | NORWALK CT |
| Township / Civil Division | NORWALK |
| Census Block Group | 4 |
| Census Block | 4016 |
| Census Tract | 44200 |
21 4th St, a duplex, is owned and occupied by an individual who bought it in November 1986.
Source: Norwalk City records, as of October 21, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 21 4TH ST, NORWALK, CT 06855-2403 |
| 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 | Name on Deed |
|---|---|
| Last Sale | Nov 3, 1986 · Amount on File |
| Deed Sale | Nov 3, 1986 · Amount on File |
| Deed Book / Page | 1940 / 178 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 21 4th St was $10,601, up 1.4% from the year before.
Source: Norwalk City assessment roll, as of June 25, 2026
| Type | Name |
|---|---|
| State | Connecticut |
| County Subdivision / Municipality | Norwalk City |
| Unified School District | Norwalk School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $10,601.00 (+1.39%) | $437,510 (-) Land $236,940 Building $200,570 | $642,742 (+109.87%) |
| 2025 | $10,456.00 | $437,510 Land $236,940 Building $200,570 | $306,257 Land $165,858 Building $140,399 |
| 2024 | $10,456.00 (+58.69%) | ||
| 2023 | $6,589.00 (+2.19%) | $262,670 (-0.02%) Land $143,350 Building $119,320 | |
| 2022 | $6,448.00 | $262,720 Land $143,400 Building $119,320 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 21 4th St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective November 28, 2025
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 21 4th St has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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 | SOUTH NORWALK ELECTRIC & WATER serves 42,000 people · EPA ID CT1030021 |
|---|---|
| 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 | Organic carbon removal Jan 2019 |
| Monitoring and Reporting | 2 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 516 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Fiber · Cable | 8,000 / 8,000 |
| Frontier Fiber | 7,000 / 7,000 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Xfinity.
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