1203 Seminary St is a 896 square foot house on a 0.26 acre lot with 1 bathroom. Based on Redfin's Alton data, we estimate the home's value is $104,681.
Single-familyProperty Type
1940Year Built
0.26 acresLot Size
$117Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$104,681
$12K since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 56.5% higher than the average sale price ($67K) of 6 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$2,237 (+11.4%)
$2,470 + $31,470
$33,940
2024
$2,008 (+9.3%)
$2,470 + $31,470
$33,940
2023
$1,837 (+9.9%)
$2,230 + $28,470
$30,700
2022
$1,672 (+4.0%)
$1,820 + $23,240
$25,060
2021
$1,608 (+1.1%)
$1,820 + $23,240
$25,060
2019
$1,590 (+3.8%)
$1,710 + $21,840
$23,550
2018
$1,532 (+1.4%)
$1,610 + $20,580
$22,190
2017
$1,510 (+2.0%)
$1,570 + $20,040
$21,610
2016
$1,480 (−2.4%)
$1,570 + $20,040
$21,610
2015
$1,517 (+6.8%)
$1,570 + $20,040
$21,610
2013
$1,420
$1,610 + $20,580
$22,190
Tax history for 1203 Seminary St
Year
Property tax
Land + Additions
Assessment*
2025
$2,237 (+11.4%)
$2,470 + $31,470
$33,940
2024
$2,008 (+9.3%)
$2,470 + $31,470
$33,940
2023
$1,837 (+9.9%)
$2,230 + $28,470
$30,700
2022
$1,672 (+4.0%)
$1,820 + $23,240
$25,060
2021
$1,608 (+1.1%)
$1,820 + $23,240
$25,060
2019
$1,590 (+3.8%)
$1,710 + $21,840
$23,550
2018
$1,532 (+1.4%)
$1,610 + $20,580
$22,190
2017
$1,510 (+2.0%)
$1,570 + $20,040
$21,610
2016
$1,480 (−2.4%)
$1,570 + $20,040
$21,610
2015
$1,517 (+6.8%)
$1,570 + $20,040
$21,610
2013
$1,420
$1,610 + $20,580
$22,190
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Apr 20, 2017 • Final
Sewer repair
Gas
Plumbing
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Interior
Bathroom Information
# of Full Baths: 1
# of Bathroom Fixtures: 8
Heating & Cooling
Air Conditioning Type: Central
Heating Type: Warm Air
Exterior
Exterior Information
Building Construction Quality: Average
Exterior Wall: Vinyl
Property Information
Subdivision Name: PRIESTS H C SUB
Living Sq. Ft: 896
Building Sq. Ft: 896
Legal Description: PRIESTS H C SUBD LOT 23 69.5X165
Parking & Garage Information
Parking Type: Detached Garage
Garage/Parking Sq. Ft: 336
Garage / Carport Type: Detached
Lot Information
# of Buildings: 1
Land Sq. Ft: 11,468
Legal Lot Number: 23
Municipality Name: ALTON
Acres: 0.2633
Depth Footage: 165
Front Footage: 69.5
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2025
Tax District County: ALTON CITY; HAYNER LIBRARY
Public facts
Beds: —
Baths: 1.0
Sq. Ft.: 896
Stories: —
Lot Size: 0.26 acres
Style: Single Family Residential
Year Built: 1940
Year Renovated: —
County: Madison County
APN: 232080715402024
Home facts updated by county records on Oct 12, 2026
Around this home
Schools
K - 12
Preschool & daycare
East Elementary School
Public 3-5 • Assigned • 0.3mi
5/10
Alton Middle School
Public 6-8 • Assigned • 0.8mi
4/10
Alton High School
Public 9-12 • Assigned • 2.7mi
3/10
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
5/10 Heat Factor
7 days above 106° expected this year, 20 days in 30 years
2/10 Wind Factor
1% chance of strong winds in next 30 years
3/10 Air Factor
2 unhealthy days expected this year, 4 days in 30 years
Provided by First Street
Historical weather
Alton, IL • 62002
Average low and high temperatures (°F)
36°
19°
45°
27°
64°
41°
70°
50°
74°
56°
85°
67°
89°
72°
85°
66°
84°
62°
72°
53°
56°
41°
44°
29°
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 9.8 hours in
June and 4.1 hours in December, which is comparable to the
U.S. average for solar exposure.
9.8 hrs
4.1 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$100,000 – $121,000
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