113 Koster St, Madison, WI 53713 Property Records

Dane County property record for 113 Koster St, Madison, WI 53713

Property Summary

Property Type	Single Family Home
Details	3 bd · 1 ba · 912 sqft · built 1969
Lot Size	0.186 acres (8,124 sqft)
Owner	Individual Name on File
Tax Bill	$5,571 (2024)
Deeds & Mortgages	Jul 2023 Line of Credit Mar 2022 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`0709-351-1404-4`

Property Details

APN / Parcel Number

Primary APN	`0709-351-1404-4`

Interior

Bedrooms	3 Beds
Full Baths	1 Bath
Total Rooms	6 Rooms
Stories	1 Story
Building Area	912 sqft Living Area
1st Floor Area	912 sqft
Basement Area	912 sqft
Flooring	Wood
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1969
Effective Year Built	Effective 1986
Architectural Style	Ranch
Exterior Material	Wood
Construction Type	Wood
Foundation Type	Concrete
Roof Material	Asphalt
Lot Area	8,124 sqft (0.186 acres)
Lot Dimensions	125 ft deep x 65 ft wide
Driveway	Driveway
Driveway Area	56 sqft
Patio Area	196 sqft

Utilities, Heating & Cooling

Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	113 KOSTER ST
City	MADISON
State	WI
Zip	53713-1401
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	TR-C1
Legal Description	CAPITOL VIEW HTS PLAT, LOT 18
Legal Range	09
Legal Township	07
Legal Section	35
Legal Subdivision	CAPITOL VIEW HTS PLAT
Legal Lot Number	18
Jurisdiction	DANE WI
Township / Civil Division	MADISON
Census Block Group	4
Census Block	4023
Census Tract	1401

Owner

113 Koster St is owned and occupied by an individual who acquired it in December 2021.

Source: Dane County records, as of January 22, 2026

Owner of Record	Individual Name on File
Co-owner	Co-owner on File
Mailing Address	113 KOSTER ST, MADISON, WI 53713-1401
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.

Deeds, Mortgages & Sale History

Date	Document
Jul 3, 2023	Deed of Trust, Mortgage · Line of Credit UNIVERSITY OF WISCONSIN CU
Mar 8, 2022	Deed of Trust, Mortgage · Conventional Mortgage UNIVERSITY OF WISCONSIN CU
Nov 2, 2021	Land Contract, Transfer
Dec 15, 2021	Warranty Deed, Transfer

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Dec 15, 2021
Deed Sale	Dec 15, 2021
Deed Document Number	5797600
Record Updated	Jun 8, 2026

July 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	DANE WI
Property Address	113 KOSTER ST, MADISON, WI 53713-1401
Transaction Type	Mortgage
Record Updated	Jul 26, 2023

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0005910455
Date	Jul 3, 2023
Instrument	5910455

Lender

Name	UNIVERSITY OF WISCONSIN CU
Type	Credit Union

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	360 Months
Due	Jul 2, 2053

March 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	DANE WI
Property Address	113 KOSTER ST, MADISON, WI 53713-1401
Transaction Type	Mortgage
Record Updated	Mar 23, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0005817134
Date	Mar 8, 2022
Instrument	5817134

Lender

Name	UNIVERSITY OF WISCONSIN CU
Type	Credit Union

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Mar 7, 2052

Interest

Rate Type	Fixed Rate

November 2021: Land Contract, Transfer

Document Type	Land Contract
Jurisdiction	DANE WI
Recording Date	Nov 2, 2021
Property Address	113 KOSTER ST, MADISON, WI 53713-1401
Document Number	0005785754
Instrument Date	Nov 1, 2021
Instrument	5785754
Transaction Type	Transfer
Record Updated	Nov 17, 2021

Transaction

Amount	Amount on Record
Tax	$705.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name

December 2021: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	DANE WI
Recording Date	Dec 15, 2021
Property Address	113 KOSTER ST, MADISON, WI 53713-1401
Document Number	0005797600
Instrument Date	Nov 1, 2021
Instrument	5797600
Transaction Type	Transfer
Record Updated	Dec 29, 2021

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	113 KOSTER ST, MADISON, WI 53713-1401

Tax Assessment & Valuation

Source: Dane County assessment roll, as of January 1, 2025

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

Year	Tax Bill	Assessed Value	Assessed Market Value
2025		$271,500 Land $68,900 Building $202,600
2024	$5,571.00		$271,500
2023		$244,900 Land $63,200 Building $181,700
2022	$4,380.00

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

Flood

FEMA maps place 113 Koster St in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective September 20, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	2 in force

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Wildfire risk around 113 Koster St is low, with less than a 0.01% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 99.1% of the US · lower than 97.9% of Wisconsin
Wildfire Likelihood	Under 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.

Drinking Water

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

Water System	MADISON WATER UTILITY serves 272,000 people · EPA ID WI1130224
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, 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.

Internet Providers

Source: FCC Broadband Data Collection, based on 342 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Spectrum Cable · Fiber in parts of the area	1,000 / 1,000
LiteWire Fixed Wireless	100 / 25

May also be available: AT&T, Four Lakes Broadband, T-Mobile, Verizon.

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