70 William St, Norwalk, CT 06851 Property Records

Norwalk City property record for 70 William St, Norwalk, CT 06851

Property Summary

Property TypeSingle Family Home
Details3 bd · 1.5 ba · 1,860 sqft · built 1952
Lot Size0.63 acres (27,443 sqft)
OwnerIndividual Name on File
Last Sale$525,000 (Jan 2008)
Tax Bill$10,383 (2024)
Flood ZoneZone X (minimal risk)
APND:5 B:3B L:42

Property Details

APN / Parcel Number

Primary APND:5 B:3B L:42
Alternative APNs
  • NORW M:5 B:3B L:42
  • NWLK M:5 B:3B L:42
  • 16243

Interior

Bedrooms3 Beds
Full Baths1.5 Baths
Half Baths1 Half Bath
Total Rooms6 Rooms
Stories1 Story
Building Area1,860 sqft Living Area
Gross Area4,404 sqft
1st Floor Area1,860 sqft
Basement Area1,860 sqft
Unfinished Basement1,072 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1952
Effective Year BuiltEffective 1980
Architectural StyleRanch
Exterior MaterialWood Siding
Construction TypeFrame
Roof TypeGable
Roof MaterialAsphalt
Lot Area27,443 sqft (0.63 acres)
Garage TypeBasement
Parking Spaces2 Parking Spaces
Deck AreaDeck Area

Utilities, Heating & Cooling

Cooling SystemHVAC
Heating SystemHot Water
Heating FuelGas

Location & Zoning

Account Number16243
Street Address70 WILLIAM ST
CityNORWALK
StateCT
Zip06851-6040
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeA1
Legal Block3B
Legal Lot Number42
JurisdictionNORWALK CT
Township / Civil DivisionNORWALK
Census Block Group2
Census Block2008
Census Tract43500

Owner

70 William St is owned and occupied by an individual who bought it in January 2008.

Source: Norwalk City records, as of June 25, 2026

Owner of RecordIndividual Name on File
Mailing Address70 WILLIAM ST, NORWALK, CT 06851-6040
OccupancyOwner Occupied
Owner TypeIndividual

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleJan 4, 2008 · Amount on File
Deed SaleJan 4, 2008 · Amount on File
Deed Book / Page6711 / 287
Record UpdatedSep 20, 2026

Tax Assessment & Valuation

Source: Norwalk City assessment roll, as of June 25, 2026

Property Jurisdictions

TypeName
StateConnecticut
County Subdivision / MunicipalityNorwalk City
Unified School DistrictNorwalk School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$433,620 Land $208,990 Building $224,630$303,534 Land $146,293 Building $157,241
2024$10,383.00 (+31.36%)
2023$7,904.00 (+1.91%)$314,120 (-) Land $156,750 Building $157,370
2022$7,756.00$314,120 Land $156,750 Building $157,370

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 70 William St in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective November 28, 2025

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

The area around 70 William 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 RiskNot rated
no burnable land within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemNORWALK FIRST TAXING DISTRICT
serves 40,256 people · EPA ID CT1030011
Water SourceSurface water
Last State InspectionAug 2025
Lead3 ppb (2025)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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.

Internet Providers

Source: FCC Broadband Data Collection, based on 197 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Optimum
Fiber · Cable
8,000 / 8,000
Frontier
Fiber
7,000 / 7,000
Xfinity
Fiber
2,000 / 2,000
Verizon
Fixed Wireless
300 / 20

May also be available: T-Mobile.

Nearby Properties on William St

Nearby Streets

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