23 William St, Norwalk, CT 06851 Property Records

Norwalk City property record for 23 William St, Norwalk, CT 06851

Property Summary

Property Type	Single Family Home
Details	4 bd · 3.5 ba · 1,350 sqft · built 1963
Lot Size	0.81 acres (35,284 sqft)
Owner	2 Individual Names on Record
Tax Bill	$10,657 (2026)
Deeds & Mortgages	Dec 2021 Refinance Apr 2017 Line of Credit
Flood Zone	Zone X (minimal risk)
APN	`D:5 B:2A L:81`

Property Details

APN / Parcel Number

Primary APN	`D:5 B:2A L:81`
Alternative APNs	`NORW M:5 B:2A L:81` `NWLK M:5 B:2A L:81` `14579`

Interior

Bedrooms	4 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	7 Rooms
Stories	1 Story
Building Area	1,350 sqft Living Area
Gross Area	3,040 sqft
1st Floor Area	1,350 sqft
Basement Area	1,250 sqft
Unfinished Basement	1,250 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1963
Effective Year Built	Effective 1987
Architectural Style	Raised Ranch
Exterior Material	Aluminum/Vinyl
Construction Type	Frame
Roof Type	Gable
Roof Material	Asphalt
Lot Area	35,284 sqft (0.81 acres)
Garage Type	Basement
Parking Spaces	2 Parking Spaces
Deck Area	Deck Area

Utilities, Heating & Cooling

Heating System	Hot Water
Heating Fuel	Oil

Location & Zoning

Account Number	14579
Street Address	23 WILLIAM ST
City	NORWALK
State	CT
Zip	06851-6004
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	A1
Legal Block	2A
Legal Lot Number	81
Jurisdiction	NORWALK CT
Township / Civil Division	NORWALK
Census Block Group	2
Census Block	2006
Census Tract	43500

Owner

Source: Norwalk City records, as of October 21, 2026

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

Owner of Record	2 Individual Names on Record
Mailing Address	23 WILLIAM ST, NORWALK, CT 06851-6004
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Dec 3, 2021	Deed of Trust, Mortgage · Stand-Alone Refinance JPMORGAN CHASE BANK NA
Apr 18, 2017	Deed of Trust, Mortgage · Line of Credit PEOPLES UNITED BANK

Assessor's Deed Record

Deed Names	2 Names on Deed
Record Updated	Oct 29, 2026

December 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	NORWALK CT
Property Address	23 WILLIAM ST, NORWALK, CT 06851-6004
Transaction Type	Mortgage
Record Updated	Apr 24, 2025

Transferred To (Grantee/Buyer)

Name	Verified Name
Investor	Possibly a Property Investor

Mortgage

Document Number	009382-133
Date	Dec 3, 2021
Book Page	9382/133
Instrument	2021016229

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank

Agreement

Type	Stand-Alone Refinance
Amount	Amount Recorded
Term	361 Months
Due	Jan 1, 2052

April 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	NORWALK CT
Property Address	23 WILLIAM ST, NORWALK, CT 06851-6004
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	8514-192
Date	Apr 18, 2017
Book Page	8514/192

Lender

Name	PEOPLES UNITED BANK
Type	Bank

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	348 Months
Due	Apr 1, 2046

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	Connecticut
County Subdivision / Municipality	Norwalk City
Unified School District	Norwalk School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026	$10,657.00 (+1.37%)	$439,030 (-) Land $220,670 Building $218,360	$783,695 (+155.01%)
2025	$10,513.00	$439,030 (+27.31%) Land $220,670 Building $218,360	$307,321 Land $154,469 Building $152,852
2024	$10,513.00 (+21.16%)
2023	$8,677.00 (+7.63%)	$344,860 (+5.63%) Land $165,500 Building $179,360
2022	$8,062.00	$326,490 Land $165,500 Building $160,990

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

Flood

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

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

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.

Drinking Water

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

Water System	NORWALK FIRST TAXING DISTRICT serves 40,256 people · EPA ID CT1030011
Water Source	Surface water
Last State Inspection	Aug 2025
Lead	3 ppb (2025) action level 15 ppb

Violations Reported to EPA

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.

Internet Providers

Source: FCC Broadband Data Collection, based on 309 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

May also be available: T-Mobile, Xfinity.

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