Colorado has two wildfire maps for your home. You can only appeal one of them.

This year, two completely different systems started putting a wildfire label on your address, and homeowners are understandably mixing them up. One is a state code map that decides what building rules apply when you renovate. The other is your insurer's risk model, which decides what you pay for coverage. They use different data, answer to different agencies, and come with completely different rights.

The code map is essentially not appealable. The insurance score now is. Knowing which one is costing you money tells you which lever you actually have.

Colorado's Wildfire Resiliency Code took effect in 2026. If your home falls inside a designated wildland-urban interface area on the state's map, certain construction and renovation work must meet fire-hardening requirements. The best-known examples are the threshold rules, where replacing more than a set fraction of your roof or siding can trigger a requirement that the whole assembly meet the fire-rated standard. Confirm the exact trigger against the adopted code before you scope a project.

• It is regulatory geography. You are in the zone or you are not. The map is adopted through a public rulemaking process, not calculated per property.
• Your fire-safety work does not move it. Clearing your defensible space does not take your parcel out of a code zone. The map reflects where you are, not what you have done.
• The remedy is timing and planning, not appeal. If a renovation would cross a code trigger, the productive move is scoping the project against the threshold before you get bids, not contesting the zone.

Separately, your insurer runs your home through a wildfire risk model that produces a score. That score drives your premium and sometimes whether you are renewed at all. Unlike the code map, this one is calculated per property, from data: aerial imagery, vegetation layers, roof-material inference, fire history. And unlike the code map, Colorado law (HB25-1182, C.R.S. § 10-4-124, Reg 5-1-28) now gives you concrete rights against it. The score must be disclosed with its drivers. You can appeal it on a 10-day and 30-day clock. You can demand a rescore after completed work. Insurers must publish and honor their fire-safety discount schedules.

Mistake one: contesting the wrong map. Calling the county about your insurance score, or your insurer about the code zone, gets you nowhere. Different systems, different agencies, different remedies.

Mistake two: treating the score as geography. It is not. It is a model output, model outputs run on stale data, and Colorado just made the data contestable. Treating a wrong score as geography means paying a wrong premium indefinitely.

Mistake three, the subtle one: assuming the maps agree. They do not have to. You can be outside the state's WUI code zone and still carry a brutal insurance score, because the insurer's model sees something the code map does not weigh. And you can be inside the code zone with a decent score, because your property features are strong. Each label has to be checked on its own.

1. Check the code map. Your county building department or the state's WUI map tool will tell you if the Resiliency Code applies to your parcel. If yes, learn the renovation thresholds before your next bid, not after.
2. Get the insurance score in writing. If it has not arrived with a renewal on or after October 1, request it. Your insurer must provide it.
3. Compare the score's assumptions to reality. Roof, Zone 0, defensible space, community fire-safety work. Gaps are appeal material.
4. Put your effort where your rights are. Planning and scoping against the code map. Evidence and appeal against the score. Our DIY appeal guide and carrier schedule index cover the second half.

Upload your score letter (or renewal) and we decode it free, including whether the number reflects your home or an outdated picture of it. The code map we cannot move. The score, the law says, you can challenge.