Tree Protection in Porter County, IN (2026)
2 rules for unincorporated Porter County, Indiana.
Verified from official government sources
Protected Tree Species
Porter County's UDO protects trees by size, not species: any tree with a trunk diameter of twenty-four inches or greater is a 'Specimen Tree' entitled to construction fencing and root protection when it sits inside a designated tree conservation area. The code does not name individually protected species.
Porter County Specimen Tree Protections
Some RestrictionsPorter County UDO Ch. 12 'Tree, Specimen'; §5.27 LA-06(C)
Tree, Specimen: Trees with a DBH of twenty-four (24) inches or greater. ... C. Specimen Tree: Prior to construction around a specimen tree in a tree conservation area, the following standards apply: 1. Install highly visible (orange) construction fencing around the tree a minimum of twice the radius of the dripline of the tree. 2. Avoid injuring roots when installing anchoring posts for fencing...
Parkway Planting
Along Primary and Secondary Arterial road frontages in the county's Arterial Roadway Overlay District, developers must plant a fixed count of shade, ornamental and evergreen trees in a street-side greenbelt for every 100 linear feet of frontage, not just grass or a fence.
Porter County Arterial Overlay Street Tree Rules
Some RestrictionsPorter County UDO § 3.06(G)(1)(a)(vi)
vi. Trees and shrubs shall be prorated and rounded up to the nearest whole number for every foot over the initial one hundred (100) feet. The base-planting unit for each one hundred (100) linear foot increment of the greenbelt is as follows: [a] Primary Arterial: Ten (10) shade trees; and six (6) ornamental trees; and either thirty (30) shrubs or six (6) evergreen trees (a combination may be ut...
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