The Main Street Historic District developed circa 1844–1920 across just 9 acres and 37 contributing buildings, and the Courthouse Square district circa 1865–1960 over 70 acres — those blocks hold the town's oldest and largest trees on narrow lots with sidewalks on both sides. Danville does actively manage its right-of-way canopy through a standing Tree Advisory Committee, though the specific inventory and replanting-ratio requirements attributed to Chapter 97 could not be verified. That context matters for northern catalpa: catalpa is the coarse old tree on the back fence line — heart-shaped leaves the size of a hand, orchid-like white flowers in june, and foot-and-a-half seed pods. Removing a northern catalpa around Danville runs roughly $400–$1,900, and in Danville Main Street Historic District and Danville Courthouse Square Historic District access is usually what decides where in that range you land.
What's actually growing in Danville
The Main Street Historic District developed circa 1844–1920 across just 9 acres and 37 contributing buildings, and the Courthouse Square district circa 1865–1960 over 70 acres — those blocks hold the town's oldest and largest trees on narrow lots with sidewalks on both sides. Danville does actively manage its right-of-way canopy through a standing Tree Advisory Committee, though the specific inventory and replanting-ratio requirements attributed to Chapter 97 could not be verified.
Danville's housing stock, and what it means for tree size
Middle-aged and trending newer: Census ACS figures reproduced in regional planning data show 66.7 percent of Danville's units predate 2000, 24.4 percent were built between 2000 and 2013, and 8.9 percent in 2014 or later, with the town's 2021 comprehensive plan counting over 4,100 housing units and more than 500 added since 2010. The result is a genuinely old core around the courthouse square with 1840s–1920s houses and century-old street trees, ringed by subdivisions whose trees are 10 to 25 years old.
What's specific to northern catalpa
Catalpa roots are coarse and reasonably deep, and it simply is not a hardscape-conflict tree — you rarely find it lifting a drive or in a sewer lateral. What it does have is broad tolerance for central Indiana's worst conditions: alkaline clay, road salt, and both wet and dry sites, which is why so many survive untended in ditch banks, alleys, and old farm lots.
Hendricks County (county seat) County rules
No permit is required to remove a tree on private property in Danville. Beyond that, the town's Chapter 97 tree code could not be verified from a retrievable source: what danvillein.gov does confirm is that a three-member Tree Advisory Committee exists to encourage the planting, care and preservation of trees in the public right-of-way. Chapter 97 is reported to require written permission from that committee and the Staff Project Coordinator before removing, or trimming more than one-fifth of, any right-of-way tree, on a free 30-day permit — confirm that requirement with Town Hall before any work in the tree lawn.