Tree Protection in Naperville, IL: What Residents Actually Need to Know

If you live in Naperville or are thinking about moving there, tree protection are one of those things you probably won't think about until they affect you directly. Naperville has 3 specific rules on the books covering different aspects of tree protection, and some of them might surprise you.

Tree Removal Permits

Naperville requires tree removal permits for trees 4 inches or greater in diameter on residential lots over 1.5 acres and all non-residential parcels. Residential lots under 1.5 acres are exempt. Permits are obtained through the City's Civic Access Portal. Parkway trees may only be removed by the Department of Public Works.

Key details: Permit Trigger: 4+ inch diameter trees. Lot Size Threshold: 1.5 acres (residential). Application: Civic Access Portal. Parkway Trees: City-owned, DPW only.

Unauthorized tree removal: fines and replacement requirements assessed by Public Works. Damage to city parkway trees: replacement cost assessment. Construction damage to protected trees: potential stop-work order.

Tree Replacement Requirements

Naperville requires tree replacement as part of the tree removal permit process for applicable properties (lots over 1.5 acres and non-residential parcels). The city works with property owners to determine replacement requirements. Parkway tree replacement is handled by the Department of Public Works.

Key details: Replacement Required: Case-by-case (permit condition). Applies To: Lots over 1.5 acres; non-residential. Parkway Trees: City handles replacement. Contact: DPW (630) 420-6095.

Failure to comply with replacement conditions of a tree removal permit may result in fines and additional replacement requirements assessed by the Department of Public Works.

Heritage & Protected Trees

Naperville protects its urban forest through Title 9, Chapter 3 (Urban Forest Protection) and Title 5, Chapter 10 (Landscape, Screening and Tree Preservation). While the city does not use the term 'heritage trees' formally, large trees on properties over 1.5 acres and all non-residential parcels receive protection through the tree removal permit process.

Key details: Permit Required: Trees 4+ inches DBH. Applies To: Lots over 1.5 acres; non-residential. Exempt: Residential lots under 1.5 acres. Code: Title 9 Ch. 3; Title 5 Ch. 10.

Unauthorized tree removal on applicable properties: fines and potential replacement requirements assessed by the Department of Public Works. Damage to parkway trees: city may assess replacement costs.

The Bottom Line

Naperville's tree protection rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Naperville is broadly strict or permissive.

This guide is based on Naperville's current municipal code. Local rules can and do change, so check the individual ordinance pages for the latest details, penalties, and FAQs.