Last week’s debate between the Antiplanner and Charles Marohn was supposed to be about urban planning, but it ended up being more about urban finance. Marohn had been hired by the city of Lafayette, Louisiana to help it decide where to fund its infrastructure. He and his organization, Strong Towns, advocates that cities use return on investment model to help make such decisions.
Marohn raised some legitimate questions about city finances. For example, in a typical subdivision, the developer builds roads and streets and then deeds them over to the city. The city collects property and sales taxes on the new development, which can be a windfall for many years. But then, after 25 years or so, the street needs to be repaved, and the cost of doing so may not be justified by the taxes collected from adjacent properties.