513 Porter St is a 950 square foot house on a 4,186 square foot lot. - it last sold on October 19, 1999 for $49,000. Based on Redfin's Alton data, we estimate the home's value is $84,153.
Single-familyProperty Type
1948Year Built
4,186 sq ftLot Size
$89Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$84,153
$35K since sold in October 1999$2,000 since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 5.9% lower than the average sale price ($89K) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Aug 25, 2017 • Final
Plumbing
Replace the water line.
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
Basement Information
Basement Sq. Ft: 400
Basement Type: Finished
Bathroom Information
# of Bathroom Fixtures: 7
Heating & Cooling
Heating Type: Warm Air
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Exterior
Exterior Information
Building Construction Quality: Average
Exterior Wall: Vinyl
Property Information
Living Sq. Ft: 950
Building Sq. Ft: 950
Legal Description: CURDIE HEIGHTS LOT PT 17 59.8 X 70 X IRR
Lot Information
# of Buildings: 1
Land Sq. Ft: 4,186
Legal Lot Number: 17
Municipality Name: ALTON
Acres: 0.0961
Depth Footage: 70
Front Footage: 59.8
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2025
Tax District County: ALTON CITY; HAYNER LIBRARY
Public facts
Beds: —
Baths: —
Sq. Ft.: 950
Stories: —
Lot Size: 4,186 square feet
Style: Single Family Residential
Year Built: 1948
Year Renovated: —
County: Madison County
APN: 232081709103029
Home facts updated by county records on Jul 21, 2026
Around this home
Schools
West Elementary School
Public 2-5 • Assigned • 3.6mi
3/10
Alton Middle School
Public 6-8 • Assigned • 1.7mi
4/10
Alton High School
Public 9-12 • Assigned • 3.5mi
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
73
52
56
41
44
29
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
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Oct
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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
$80,000 – $97,000
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