1015 Williamson St, Madison, WI 53703 Property Records

Dane County property record for 1015 Williamson St, Madison, WI 53703

Property Summary

Property Type	Duplex
Details	4 bd · 2 ba · 1,904 sqft · built 1895
Lot Size	0.1 acres (4,356 sqft)
Owner	Individual Name on File
Last Sale	$229,900 (Apr 2008)
Tax Bill	$8,403 (2024)
Deeds & Mortgages	Nov 2017 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`0709-134-0209-9`

Property Details

APN / Parcel Number

Primary APN	`0709-134-0209-9`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	11 Rooms
Units	2 Units
Stories	2 Stories
Building Area	1,904 sqft Living Area
1st Floor Area	952 sqft
2nd Floor Area	952 sqft
Attic Area	342 sqft
Basement Area	952 sqft
Flooring	Wood
Interior Walls	Plaster

Exterior

Year Built	Built 1895
Effective Year Built	Effective 1974
Architectural Style	Traditional
Exterior Material	Aluminum/Vinyl
Foundation Type	Stone
Roof Material	Asphalt
Lot Area	4,356 sqft (0.1 acres)
Lot Dimensions	132 ft deep x 33 ft wide
Driveway	Driveway
Driveway Area	240 sqft
Parking Spaces	2 Parking Spaces
Porch	Open Porch
Porch Area	52 sqft
Deck Area	65 sqft

Utilities, Heating & Cooling

Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	1015 WILLIAMSON ST
City	MADISON
State	WI
Zip	53703-4342
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Local Zoning Code	HIS-TL, TR-V2
Legal Description	ORIGINAL PLAT, AKA FARWELLS REPLAT, BLK 175, NE 1/2 OF LOT 3
Legal Range	09
Legal Township	07
Legal Section	13
Legal Subdivision	ORIGINAL PLAT, AKA FARWELLS REPLAT, BLK
Legal Block	175
Legal Lot Number	3
Jurisdiction	DANE WI
Township / Civil Division	MADISON
Census Block Group	4
Census Block	4004
Census Tract	1901

Owner

Source: Dane County records · APN 0709-134-0209-9

Assessment roll updated January 1, 2025 · Last verified February 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Individual Name on File
Mailing Address	1015 WILLIAMSON ST APT 1, 1, MADISON, WI 53703-4342
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Apr 04, 2008 · Amount on Record
Deed Sale	Apr 04, 2008 · Amount on Record
Prior Sale	Apr 04, 2008 · Amount on Record
Deed Document Number	0004416216
Last Transfer Date	Nov 07, 2017
Transfer Doc	0005370468
Record Updated	Jun 08, 2026

November 2017: Deed, Transfer

Document Type	Deed
Jurisdiction	DANE WI
Recording Date	Nov 07, 2017
Property Address	1015 WILLIAMSON ST, MADISON, WI 53703-4342
Document Number	0005370468
Instrument Date	Oct 27, 2017
Instrument	5370468
Transaction Type	Transfer
Record Updated	Sep 08, 2022

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on File
Loan-to-Value (LTV)	LTV on Record
Tax	$940.50
Amount Accuracy	Calculated from Transfer Tax

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0005370469
Date	Nov 07, 2017
Instrument	5370469

Lender

Name	THOMPSON KANE & CO LLC

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded

Interest

Rate Type	Fixed Rate

Tax Assessment & Valuation

Source: Dane County records · Assessment roll updated January 1, 2025 · Last verified February 2026

Property Jurisdictions

Type	Name
State	Wisconsin
County	Dane County
Municipality	Madison City
Unified School District	Madison Metropolitan School District (PK - 12)

Tax Bill & Assessment History

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

Year	Tax Bill	Assessed Value	Assessed Market Value
2025		$479,400 (+7.01%) Land $155,100 Building $324,300
2024	$8,403.00 (+3.31%)		$479,400
2023		$448,000 Land $155,100 Building $292,900
2022	$8,134.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Dane County (55025C), as of September 20, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Wildfire

Wildfire Risk	Not rated no burnable land within ember reach

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

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
AT&T Fiber · Fixed Wireless, DSL in parts of the area	5,000 / 5,000
Spectrum Cable · Fiber in parts of the area	1,000 / 1,000
Verizon Fixed Wireless	1,000 / 75
ResTech Services Fixed Wireless · Fiber in parts of the area	100 / 25
T-Mobile USA Fixed Wireless	100 / 20

Based on FCC filings for 427 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System, water system WI1130224, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	MADISON WATER UTILITY serves 272,000 people
Water Source	Groundwater
Last State Inspection	Apr 2023
Lead	2 ppb (2023) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	Lead service line inventory Oct 2024
Monitoring and Reporting	1 last 3 years

Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. This system sells water to local utilities; the supplier billing this address may be one of them. The full violation and enforcement history is in the system's EPA record.