Contents Chapter 10. Permits and pros
Permit offices by county
For a Delta County building permit, ask the county directly, because its pages couldn't be opened when this was checked in November 2026; only Mesa County's rules could be read, and they are set out here.
- Use this when
- You are planning plumbing, gas, electrical or building work and don't know whose permit it needs.
- Done when
- You have asked the right office, in writing if you can, and its answer is on your house card before work starts.
- Who
- You, then whoever does the work
Written for this manual, last checked against sources November 4, 2026. Who wrote it

10-1.1 What could and couldn't be checked
Mesa County is the only local office whose pages could be read for this manual. Everything else on this list is unconfirmed. Don't take this table as saying those offices have no rules, or what their rules are.
| Place | Status | What to do |
|---|---|---|
| Mesa County | Pages read | Use the section below |
| Grand Junction, Palisade, Collbran, DeBeque | Mesa's permit form covers them. Grand Junction's own site wouldn't open | Start at Mesa County's building office |
| Delta County | Site wouldn't open | Ask the county directly |
| City of Delta | Site wouldn't open | Ask the city directly |
| Montrose County | Site wouldn't open | Ask the county directly |
| City of Montrose | Site wouldn't open | Ask the city directly |
| Paonia, Hotchkiss, Crawford, Cedaredge, Orchard City | Sites wouldn't open | Ask the town hall |
| Olathe | No permit information in this manual | Ask the town hall |
We couldn't open those offices' pages when this was last checked, so ask each one directly. Any permit rule you have heard about Delta or Montrose from a neighbor or a search result remains unconfirmed here, and the office's answer is the one that counts.

10-1.2 How do you find the right office outside Mesa County?
Start with your own location, then go up a level. Use this order so you don't get a correct answer from the wrong office.
- Check your property tax notice or ask the county whether the address is inside town limits.
- If it is, ask the town whether it issues building, plumbing and electrical permits itself.
- If it isn't, or if the town says no, ask the county the same three questions.
- If neither runs a program for that trade, ask how to apply to the state. The state rule is in the next section.
- Get the answer in writing if you can, with the name of the office and the date.
What to ask any permit office
- Does this job need a permit?ASK, DESCRIBE THE JOB
- Who applies, me or the contractor?WRITE IT DOWN
- Which codes and years apply?WRITE IT DOWN
- Which inspections, and when?BEFORE COVERING WORK
- What frost depth and snow load?ASK FOR THE FIGURES
- Do you handle gas piping?ASK SEPARATELY
10-1.3 What happens when no local program covers the work?
The state does the inspection. Colorado's statutes, as published, say plumbing or gas piping work generally needs a state inspection, while towns, cities and counties may run their own program, and the state inspector handles work only where they don't. A permit comes before work starts, qualified applicants include homeowners working on their own homes, permits last 12 months, and the state inspector acts within 3 working days.
Electrical work has the same structure: the owner must have installations inspected, and you apply to the State Electrical Board unless a qualifying local building department handles it. A homeowner on their own home is a qualified applicant here too.
These are published copies, not the state's own site. The state plumbing pages and the legislature's site couldn't be opened, so have the current wording confirmed before you lean on it. Who may do the work is in §10-2.
10-1.4 What does Mesa County require?
Its building office takes electrical, plumbing and mechanical permits for Mesa County, the City of Grand Junction, Palisade, Collbran and DeBeque, at 200 S. Spruce St. That comes from a form dated April 2023. It asks for state license numbers for plumbers and electricians, and an HVAC contractor's city license only inside Grand Junction city limits.
| Who adopted it | Codes |
|---|---|
| County | 2024 IBC, IEBC, IMC, IRC; 2021 IECC |
| State | 2021 IPC, 2021 IFGC, Colorado Plumbing and Fuel Gas Code, Colorado Model and Solar Ready Code, 2023 NEC |
| Coming January 1, 2027 | 2026 NEC, 2024 Colorado Plumbing and Fuel Gas Code |
The list is on the county's adopted codes page, along with ground snow loads (§1-3). It has no frost depth or winter design temperature, so ask for those.
The sample inspection card from May 2023 lists inspections for water heaters, boilers and furnaces, gas piping, venting, wood-burning appliances and gas fireplaces. A listed inspection doesn't state when a permit is required, so ask. It says no work may be concealed before inspection, and carries this notice: "Except for a residential homeowner, it is illegal to perform electrical and plumbing work except by those licensed to do so by the State of Colorado."
Outbuildings count as well. The county's FAQ says sheds, patio covers and similar need clearances and permits. Grand Junction contractor licensing runs through the same department and is required only in city limits.
Also asked
Does Delta County require a building permit?
This manual can't tell you. The county's pages wouldn't open when last checked, so nothing on them could be read or relied on. Ask the county's building or planning office, and ask too about plumbing and electrical work, which may run on a different track.
Do I need a permit in Montrose?
The same limit applies. Neither Montrose County's nor the City of Montrose's pages could be opened. Find out first whether your address is inside city limits, then ask that office.
Is Grand Junction's building office the city's or the county's?
Mesa County's own documents say building permits and contractor licensing run through the county's building department. Grand Junction's site couldn't be opened to confirm it from the city's side. Start at the county.
How long does a permit last?
State plumbing and electrical permits last 12 months, as the statutes are published. A local program may set its own terms, so read the permit you are given.
Does a water heater swap need a permit?
For a homeowner, the state's December 2025 notice says yes, with inspection, from the authority having jurisdiction. Details and limits are in §10-2.
Where this comes from
- Colorado statute 12-155-120, plumbing permits and inspection: state and local roles, permit timing, homeowners, 12 months, 3 working days (published copy of the statute).
- Colorado statute 12-115-120, electrical permits and inspection: same structure for electrical work (published copy of the statute).
- Mesa County, adopted codes: codes and 2027 changes.
- Mesa County, permit application, April 2023: places covered, address, license numbers.
- Mesa County, sample inspection card, May 2023: inspections, notice, concealing work.
- Mesa County, contractor licensing: Grand Junction licensing.
- Mesa County, Community Development FAQ: sheds and patio covers.
- DORA addendum, December 4, 2025: water heater permit and inspection.
Sources checked November 4, 2026.