As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$7,943 (+4.8%)
$62,300 + $339,000
$401,300
2024
$7,577 (+10.2%)
$62,300 + $339,000
$401,300
2023
$6,877 (+4.8%)
$62,300 + $339,000
$401,300
2022
$6,560 (+2.1%)
$43,100 + $264,600
$307,700
2021
$6,427 (−2.4%)
$43,100 + $264,600
$307,700
2020
$6,582 (+11.7%)
$43,100 + $264,600
$307,700
2019
$5,892 (+4.0%)
$37,400 + $208,100
$245,500
2018
$5,664 (+5.1%)
$37,400 + $208,100
$245,500
2017
$5,390 (−0.2%)
$37,400 + $208,100
$245,500
2016
$5,402 (+10.7%)
$44,500 + $178,000
$222,500
2014
$4,881 (−4.7%)
$44,500 + $167,300
$211,800
2013
$5,122
$44,500 + $167,300
$211,800
Tax history for 423 Martin St
Year
Property tax
Land + Additions
Assessment*
2025
$7,943 (+4.8%)
$62,300 + $339,000
$401,300
2024
$7,577 (+10.2%)
$62,300 + $339,000
$401,300
2023
$6,877 (+4.8%)
$62,300 + $339,000
$401,300
2022
$6,560 (+2.1%)
$43,100 + $264,600
$307,700
2021
$6,427 (−2.4%)
$43,100 + $264,600
$307,700
2020
$6,582 (+11.7%)
$43,100 + $264,600
$307,700
2019
$5,892 (+4.0%)
$37,400 + $208,100
$245,500
2018
$5,664 (+5.1%)
$37,400 + $208,100
$245,500
2017
$5,390 (−0.2%)
$37,400 + $208,100
$245,500
2016
$5,402 (+10.7%)
$44,500 + $178,000
$222,500
2014
$4,881 (−4.7%)
$44,500 + $167,300
$211,800
2013
$5,122
$44,500 + $167,300
$211,800
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
SR-4
Suburban Residential District
This district is intended to permit development which has a moderate density, suburban community character. This district is intended to be the principal district for single-family development within the city. Unlike the case for the previously described residential districts, the land use standards for this district permit both single-family detached residential development and certain types of moderate density single-family attached development, as well as a variety of related institutional land uses.
Permitted uses
Include but are not limited to:
Housing-Other
Public service-Other
Property details
Exterior
Property Information
Legal Description: LOT 2 CSM 5505 CS25/111-3/29/88 F/K/A DUNPHYS ADDN BLOCK 1 LOTS 11, 10, 9, 8, 7 & PRT OF LOT 6 DESCR AS SEC 5-8-11 PRT SE1/4NE1/4 (0.180 ACRES)
Lot Information
Land Sq. Ft: 7,841
Legal Lot Number: 2
Legal Block Number: 1
Municipality Name: CITY OF SUN PRAIRIE
Acres: 0.18
County Use Description: RESIDENTIAL
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: —
Baths: —
Sq. Ft.: —
Stories: —
Lot Size: 7,841 square feet
Style: Single Family Residential
Year Built: —
Year Renovated: —
County: Dane County
APN: 081105166664
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Eastside Elementary School
Public PreK-5 • Assigned • 0.3mi
9/10
Patrick Marsh Middle School
Public 6-8 • Assigned • 1.1mi
4/10
Sun Prairie East High School
Public 9-12 • Assigned • 1.1mi
9/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
2/10 Heat Factor
7 days above 100° expected this year, 14 days in 30 years
2/10 Wind Factor
Minor risk of severe winds over next 30 years
2/10 Air Factor
2 unhealthy days expected this year, 2 days in 30 years
Provided by First Street
Historical weather
Sun Prairie, WI • 53590
Average low and high temperatures (°F)
25
11
34
18
50
30
59
40
69
48
79
61
84
66
77
61
74
55
64
46
46
33
31
17
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 9.7 hours in
June and 3.5 hours in December, placing it below the
U.S. average for solar exposure.
9.7 hrs
3.5 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$367,000 – $444,000
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