Illinois Mechanics Lien Act (IL)

Tracked preemption from the Illinois overlay bundle.

Overview

Effective
1903-07-01
Sunset
Authority
state
Scope
state:IL

Trigger predicate

When this evaluates true for a parcel, the law's preempted fields take precedence over base zoning.

always true

Preempted fields

1 field on the base district schema is rewritten when the trigger fires.

FieldOpValueNote
base_districts[*].mechanics_lien_priorityoverridestate_exclusiveState-exclusive; overrides any attempt by municipalities (including Chicago) to alter lien priority.

Citation

Authority source
770 ILCS 60/0.01 et seq.
§ 770 ILCS 60
https://www.ilga.gov/legislation/ilcs/ilcs3.asp?ActID=2235

Research notes

Touches development indirectly via construction-financing lien priority. Cited because Chicago in particular is bound despite home-rule status.