Landscape lighting in Winnetka
We didn’t find a residential outdoor lighting ordinance in Winnetka. The rules that shape a project here come from other parts of the code. The village’s permit exemption covers only very small low-voltage work. Landmark review expressly includes light fixtures. The tree code sets how wire crosses the root zones of protected trees, and lakefront rules cover the bluff. We design Winnetka projects to the same good-neighbor standard we use in stricter towns.
What applies in Winnetka
- Permits. Winnetka’s list of work not requiring a permit includes wiring and equipment operating at less than 25 volts and not capable of supplying more than 50 watts. A typical landscape transformer supplies far more, so expect a permit. We confirm with Community Development on each project. The village has adopted the 2020 National Electrical Code.
- Landmarks. Winnetka has 34 designated landmarks, and designation starts with the owner’s application. The code lists light fixtures among a building’s exterior architectural features, and no exterior alteration of a landmark goes ahead until the Landmark Preservation Commission has completed its advisory review.
- The lakefront. An ordinance adopted in February 2024 regulates the steep slope zone along Lake Michigan. On bluff properties we keep trenching and fixtures off the regulated slope.
Wiring around Winnetka’s protected trees
What the village requires
Trees 8 inches in diameter or larger are protected, or 15 inches combined for multi-stem trees. Protective fencing runs to the dripline, at one foot per inch of diameter with a 10-foot minimum. A utility that crosses a critical root zone has to be augered at least 24 inches deep, for one foot per inch of diameter up to 20 feet.
How we work with it
We map the protected trees before we design, bore the wire under their root zones instead of trenching, and set uplights by hand near the trunk. Winnetka has been a Tree City USA since 1991, and the old canopy is usually the best thing to light.
A landscape worth lighting carefully
Two of the Midwest’s great landscape architects worked in Winnetka. O.C. Simonds designed the grounds of Christ Church, the Hibbard and Kuppenheimer estates, and Indian Hill Club, and Jens Jensen designed the grounds of the August Magnus House. Their prairie-style plantings read best with soft, low light that follows the land rather than floodlighting it.
Before any trench or stake goes in, Illinois law requires a JULIE locate: notice at least two working days and no more than ten before digging, good for 25 days. We call it in and wait for the marks.
Winnetka landscape lighting questions
Does Winnetka regulate outdoor lighting?
We didn’t find a residential outdoor lighting ordinance in Winnetka’s code. We still design to the standard stricter neighbors like Highland Park and Lake Forest set: shielded sources, no light across the property line, and lights on a schedule.
Do I need a permit for landscape lighting in Winnetka?
Probably. The village exempts only wiring and equipment under 25 volts that can’t supply more than 50 watts, and most landscape transformers are larger than that. We confirm with Community Development on each project.
Our house is a Winnetka landmark. What changes?
Winnetka’s landmark code lists light fixtures among a building’s exterior architectural features, and exterior alterations to a landmark wait for the Landmark Preservation Commission’s advisory review. We plan that review into the schedule.
Can you run wire near our big oaks?
Yes, but not by trenching. Where a utility crosses a protected tree’s critical root zone, the village requires it to be augered at least 24 inches deep. We bore under root zones and hand-set fixtures near the trunk.
Walk the property with us after dark
Landscape lighting is designed at night. We’ll walk the property with you after sunset, talk through what you want to see from the street, the terrace, and the windows, and send a written design and price.
- Village of Winnetka: Work not requiring permits
- Village of Winnetka: Adopted building codes
- Village of Winnetka: Landmark nomination application packet
- Village of Winnetka: Designated landmarks
- Village of Winnetka: Forestry procedures information packet
- Village of Winnetka: Forestry
- Village of Winnetka: Lakefront regulations
- Winnetka Historical Society: The changing landscape of Winnetka
- Illinois Underground Utility Facilities Damage Prevention Act, 220 ILCS 50/4
- JULIE: Call before you dig
Manufacturer specifications and prices are as published in September 2026 and can change. We confirm current figures when we quote.