Mount Prospect, IL Solar Energy: Panel Permits (2026)

The Village of Mount Prospect finds solar energy conversion systems (SECS) a viable method of localized energy generation, and Section 14.317 B states that SECS are permitted in all zoning districts in accordance with minimum standards. The section sets the zoning conditions a system must meet; it does not itself list application steps or fees.

Rooftop systems may not project higher than the maximum building height for the zoning district, or higher than the maximum height permitted for an accessory structure if mounted on one. On a pitched roof the system must be mounted flush with the slope and cannot extend further than twelve inches from the roof surface at any point, and it cannot extend beyond the ridgeline. Every rooftop system must be safely and securely attached in compliance with the Village of Mount Prospect building code.

Ground mounted systems are not permitted in residential zoning districts. Elsewhere they must satisfy the setback requirements for an accessory structure on the zoning lot, are limited to a maximum of one hundred square feet in size, and are capped at two ground mounted systems per acre per property. Ground based utilities tied to the system must be screened under Section 14.304.1.

Glare is regulated: installations must be designed to avoid glare or reflection onto adjacent properties and adjacent roadways. The exterior surface must have a nonreflective finish and be color coordinated to harmonize with roof materials and the structure's other dominant colors.

Finally, all SECS structures, including roof mounted units, towers and accessory buildings, must conform to the Village's rules on construction, design, operation and maintenance. The Code defines a SECS as a solar photovoltaic device that converts solar energy into electricity or mechanical energy.