Guides

The law, the tactics, and the phone calls. Written for someone who is about to pay a fee, not for someone writing a law review note.

How to find the actual number for your parcelNobody publishes a national table of what you will pay, because there isn't one. Here is the sequence that gets you a real number in about two hours.Sheetz v. County of El Dorado, and what it actually changedIn 2024 the Supreme Court removed the shield that legislatively adopted impact fees had enjoyed. Then, in 2025, the fee survived anyway. Both halves matter.The three cases every fee argument runs throughEssential nexus, rough proportionality, and the rule that money counts. Twenty minutes here will make every conversation with a permit desk shorter.Impact fee, tap fee, system development charge: the difference that costs moneyThey are collected at the same window, on the same day, from the same check. They come from different law, and only one of them is usually protected by your state's act.Who is actually allowed to bill youThe city is rarely the only one. In much of the country the largest single charge comes from an entity most buyers have never heard of.Credits: the money most builders leave on the tableIf you built it, dedicated it, or will pay for it twice, most state acts require the fee to come down. Almost nobody asks.Spend it or send it back: refund deadlines by stateMost acts require unspent fees to be refunded after a set number of years. Refunds are rare, and the reason is almost never that the money was spent.When your fee schedule locks inFees go up between the day you plan a project and the day you pull permits. In some states the earlier date is the one that counts.ADUs and additions: paying for a house you are not buildingFee schedules were written for full houses. Accessory units and additions generate a fraction of the demand and are frequently quoted the full number anyway.How to challenge a fee without hiring anyoneLitigation costs more than most single-family fees. Everything below happens before that, and resolves most of what is genuinely wrong.Budgeting fees before you buy the landFees are the one major cost that is fully knowable before closing and routinely discovered after. This is the pre-purchase checklist.

Read this before you rely on anything here. Impact Fee Map describes who is legally allowed to charge new construction, for what, and what a fee payer's rights are under state law. It does not publish fee amounts for any city, county or district, and it never will, because no source keeps thirty-nine thousand local schedules current and a stale number is worse than none. This is not legal advice, not a fee quote and not a substitute for the adopted fee schedule of the bodies with jurisdiction over your parcel. Statutes change; verify against the current text and confirm every figure in writing with the agency that will bill you.