

ADU rules for Unincorporated Sangamon
Accessory Dwelling Unit (ADU) Rules for Unincorporated Sangamon, IL
Is your property eligible for an ADU?
# of Properties
13,621
Owner-occupied
76%
Zoning districts
25
Avg Home Value
$47,108
Median Lot Size
0.86 acres
Avg Income
$93,806
Residential Types:
13,621 housing units
IMPROVED RESIDENTIAL
100%
Zoning Districts:
28,154 parcels · 25 districts
A
69%(19,553)
R-1-A
14%(3,884)
R-2
9%(2,648)
B-3
2%(454)
Other
6%(1,615)
ADU Rules
What can you build in Unincorporated Sangamon, IL?
Unincorporated Sangamon, IL follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Not addressed in the local bylaw
- –Detached ADU: Not addressed in the local bylaw
What's allowed on your lot?
These are the municipality-wide rules. What's allowed on a specific property also depends on state laws, setbacks, floor area ratio, lot coverage, environmental constraints, topography, and other property-specific factors. Search your address on FutureLot to see what's allowed on your property.
Check my propertyHow can we help you?
Get matched with trusted local builders
Understand what's allowed on your property
Learn the key rules and size limits for ADUs
Is your property eligible for an ADU?
ADU rules in other Illinois municipalities
Rules change at the town line. Check the municipality your property is actually in.
Sangamon County
Browse addresses by ZIP in Unincorporated Sangamon
627032,018 addresses627071,627 addresses627021,546 addresses627111,514 addresses62563971 addresses62712970 addresses62677838 addresses62704783 addresses62670576 addresses62520458 addresses62684433 addresses62561419 addresses62536354 addresses62615352 addresses62629346 addresses62625335 addresses62558316 addresses62661256 addresses62515231 addresses62539211 addresses62693193 addresses62545163 addresses62530158 addresses62692122 addresses