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Macon County, IL Outdoor Lighting: Light Trespass & Shielding (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Governing section
§ 156.05(D)(2)
Applies to
Commercial solar energy facilities only
Standard
Shielded and downcast lighting
Trigger
Only if lighting is installed at all
Enforced through
Special use permit conditions
Non-compliance
Default; grounds for permit revocation

Summary

Macon County Code § 156.05(D)(2) requires that any lighting installed at a commercial solar energy facility be shielded and downcast so it does not spill onto the neighboring parcel. The requirement is part of the special use permit conditions the County Board imposes when it sites a grid-scale solar facility in unincorporated Macon County.

These county ordinances apply to unincorporated areas of Macon County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

(2) Lighting. If lighting is provided at the commercial solar energy facility, lighting shall be shielded and downcast such that the light does not spill onto the adjacent parcel.

Full Breakdown

05 of the Macon County Code sets the design and installation standards for commercial solar energy facilities, and subsection (D), titled Aesthetics and Lighting, addresses how a site's own light can affect its neighbors. Lighting is not mandatory at these facilities, but if a developer chooses to install it, paragraph (D)(2) requires that it be shielded and downcast so the light does not spill onto the adjacent parcel, protecting nonparticipating landowners from glare and skyglow generated by an industrial-scale facility next door. This sits alongside the rest of subsection (D): a continuous vegetative screen of native evergreens, shrubs, trees, or tall grasses must block the visible parts of the facility from nonparticipating residences, and all intra-project power and communication lines must be buried underground.

01. Because this rule lives inside Chapter 156, it applies specifically to permitted commercial solar facilities in unincorporated Macon County rather than to general residential or commercial lighting county-wide; a homeowner's yard light or a farmyard light is not reached by this particular section.

Violations & Fines

Installing unshielded lighting that spills onto an adjacent parcel is a default under the facility's special use permit and under § 156.09. The County Board must issue written notice and allow a 30-day cure period (extendable 60 more days for a diligent cure); failing to fix the lighting is grounds for the County Board to revoke the special use permit.

Frequently Asked Questions

Does Macon County limit light spilling from a solar farm onto my property?
Yes, if the neighboring use is a permitted commercial solar energy facility. Section 156.05(D)(2) requires any lighting the facility installs to be shielded and downcast so it does not spill onto the adjacent parcel, and this is a binding condition of the facility's special use permit.
Is lighting required at a commercial solar facility in Macon County?
No. Section 156.05(D)(2) only regulates lighting the developer chooses to install; there's no mandate to light the site. But if lighting is added, it must be shielded and downcast under the same subsection.
Does this light trespass rule cover ordinary neighbors' yard lights?
No. This specific standard sits in Chapter 156, which governs commercial solar energy facility siting, so it binds permitted solar developments rather than general residential or farm lighting elsewhere in unincorporated Macon County.
What happens if a solar facility's lights spill onto neighboring land?
It is treated as a default under § 156.09. The County Board must send written notice and give a 30-day cure period, extendable another 60 days, and if the lighting isn't fixed the Board can revoke the facility's special use permit.

Sources & Official References

Other rules in Macon County

All Macon County rules

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