Olathe, KS Solar Energy: Panel Permits (2026)
Key Facts
- Ground-mount height cap
- 8 feet
- Rear setback clearance
- 12 feet inside property line
- Wall panel projection cap
- 5 feet
- Governing code
- Johnson County, Kansas
Summary
Olathe allows solar collectors in every zoning district but requires them to meet the adopted building code and specific placement, height, and setback standards under the UDO.
Purpose: this section...permits solar collectors in all zoning districts, subject to performance standards that protect neighborhood character and avoid unreasonable impacts to neighboring property. B. Generally 1. All solar collectors comply with the adopted building code... E. Installation on the side of a building 1. In any planned zoning district or in any district requiring site plan approval, the construction or installation of any solar collection system on the side of a building shall be subject to either Final Development Plan approval or Site Plan approval by the City.
Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance 26-39, passed July 21, 2026).
Full Breakdown
Olathe's Unified Development Ordinance permits solar collectors citywide, but every installation must comply with the adopted building code and pass through the standard building permit process. Roof-mounted panels can't exceed the roof peak and are capped at 24 inches of projection on front/side pitched roofs (4 feet on rear-facing pitched roofs). Ground-mounted units are capped at 8 feet in height and must sit at least 12 feet inside the rear property line. Wall-mounted panels are capped at 5 feet of projection and can't intrude past 25% of a side setback or 50% of a rear setback. In a planned district or any district requiring site plan approval, side-of-building solar installations also need Final Development Plan or Site Plan approval from the City.
Violations & Fines
Installing a solar collector that exceeds the height, setback, or projection limits, or building-mounted systems without required plan approval, can be cited as a zoning code violation and ordered corrected or removed by the City.
Frequently Asked Questions
Do I need a permit for rooftop solar panels in Olathe?
Can I install ground-mounted solar panels in my Olathe backyard?
Sources & Official References
Other rules in Olathe
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Panel Permits in Nearby Cities
How other cities in Johnson County handle panel permits.