🛁 Bathroom Remodel permit in Missouri
Renovating a bathroom — fixtures, tiling, ventilation, and sometimes relocating plumbing. Here is the Missouri-specific rule: who issues it, typical fees, timeline, go / no-go, and the official source to verify.
Bathroom Remodel permit in Missouri
The Missouri rule for a bathroom remodel, with fee range, timeline, go / no-go, and the official source.
Missouri
🛁 Bathroom Remodel
Exact permit fees are set by the local building department. WikEst shows the published or code-based range where one exists, linked to its official source — verify the final amount at the source before budgeting.
🛁 Bathroom Remodel permit fee in Missouri
Permit requiredGenerally allowedcity authority
Permit fee range
Building permit fee; trade permits (plumbing/electrical) billed separately.
Typical timeline
Varies by municipality — typically several weeks for full plan review.
Setback
—
Exempt if
Not size-exempt
A permit is required when relocating plumbing/electrical, moving walls, or changing fixtures. Cosmetic-only updates may be exempt.
Official sources: American Wood Council — Missouri Adopted I-Codes (local adoption; no statewide mandate) · City of Kansas City, MO — Development Process Guide (Permits Division)
Representative cities for Missouri: St. Louis, Kansas City.
All 20 project fee ranges in Missouri
Official-source ranges where published; “By local jurisdiction” means no flat fee is published and the amount is set case by case.
| Project | Permit? | Authority | Fee range | Go / no-go |
|---|---|---|---|---|
| 🏠 Accessory Dwelling Unit (ADU) | yes | city | Permit fees set locally by each municipality — verify with the city building department (St. Louis Building Division or KC Permits Division). | case-by-case |
| 🪵 Deck / Porch | conditional | city | Permit fees set locally by each municipality — verify with the city building department. | allowed |
| 🧱 Fence / Wall | conditional | city | Usually no building permit under the height threshold; zoning setback/height rules apply. Verify locally. | allowed |
| 🛖 Shed / Outbuilding | conditional | city | No fee under the exemption; a permit fee applies if over the local threshold. | allowed |
| 🪜 Basement Finish | yes | city | Building permit fee set locally; trade permits billed separately. | allowed |
| 🚗 Garage / Carport | yes | city | Building permit fee set locally; zoning clearance may be required first. | allowed |
| ☀️ Rooftop Solar PV | yes | city | Electrical/structural permit fee set locally by the municipality. | allowed |
| 🌡️ HVAC Replacement | yes | city | Mechanical permit fee set locally by the municipality. | allowed |
| 🍳 Kitchen Remodel | yes | city | Building permit fee; trade permits (plumbing/electrical) billed separately. | allowed |
| 🛁 Bathroom Remodel | yes | city | Building permit fee; trade permits (plumbing/electrical) billed separately. | allowed |
| 🏗️ Room Addition | yes | city | Building permit fee based on valuation; zoning and plan review apply. | allowed |
| 🪟 Window / Door Replacement | conditional | city | Permit fee if changing the opening; in-kind swap is often exempt. | allowed |
| 🏘️ Roof Replacement | conditional | city | Roof-covering permit fee set locally; in-kind re-roof may be exempt. | allowed |
| 🅿️ Driveway / Parking Pad | conditional | city | No building permit for private flatwork; a right-of-way/curb cut needs a separate permit. | allowed |
| 🏊 Swimming Pool / Spa | yes | city | Building permit fee; barrier fencing required by code. | allowed |
| 🧱 Retaining Wall | conditional | city | No fee under the exemption; a permit applies if over the threshold. | allowed |
| 💥 Demolition / Teardown | yes | city | Demolition permit fee set locally by the municipality; verify with the city building department. | allowed |
| 🚰 Septic System | yes | state | Onsite sewage construction permit fee set by the MO DHSS Onsite Sewage Program; verify with the program (573-751-6095). | allowed |
| 🔌 EV Charger | yes | city | Electrical permit fee set locally by the municipality. | allowed |
| ⚡ Standby Generator | yes | city | Electrical (and gas, if fuel-fired) permit fee set locally by the municipality. | allowed |
Missouri rule at a glance
Needs permit
yes
Issuing authority
city
Typical fee
Building permit fee; trade permits (plumbing/electrical) billed separately.
Typical timeline
Varies by municipality — typically several weeks for full plan review.
Setback
—
Exempt if
Not size-exempt
A permit is required when relocating plumbing/electrical, moving walls, or changing fixtures. Cosmetic-only updates may be exempt.
Frequently asked questions
Does a bathroom remodel need a permit in Missouri?
In Missouri, a bathroom remodel is generally required to have a permit. Issuance is at the city level. Confirm the exact threshold with the local building department using the sources on this page.
Who issues the bathroom remodel permit in Missouri?
Missouri permits for this project are handled at the city level — usually the city or county building department. Use the county permit authority lookup to find the exact office for your property.
How much does a bathroom remodel permit cost in Missouri?
Fees are set locally in Missouri and are not a single statewide number. Open the official authority link on this page for the current schedule.
What exemptions apply to a bathroom remodel in Missouri?
Baseline exemptions (e.g. small detached structures, low decks) may apply but Missouri or your city can amend them. Verify with the local building department.
🗺️ All projects in Missouri
The full Missouri permit guide across 20 home projects.
📊 Bathroom Remodel in every state
Compare the bathroom remodel rule across all U.S. states.
Bathroom Remodel in other states
| State | Permit? | Authority | Typical fee | Timeline | Go / No-Go | Key notes |
|---|---|---|---|---|---|---|
| California | Permit required | city | Building + plumbing + electrical fees. Verify with the city building department. | 2–6 weeks. | Generally allowed | Ventilation (Title 24) and waterproofing are required; relocating plumbing needs permits. Exempt: N/A |
| Texas | Permit required | city | Building + plumbing + electrical fees. Verify with the city building department. | 2–6 weeks. | Generally allowed | Plumbing/electrical relocation requires permits. Exempt: N/A |
| Florida | Permit required | city | Building + plumbing + electrical fees. Verify with the city building department. | 2–6 weeks. | Generally allowed | Plumbing/electrical relocation requires permits. Exempt: N/A |
| New York | Permit required | city | Building + plumbing + electrical fees. Verify with the city building department. | NYC: ALT2 review, several weeks. | Restricted | NYC: bathroom renovation needs an ALT2 permit filed by a NYS-licensed PE or RA; fixture-only swaps may be exempt. Exempt: N/A |
| Pennsylvania | Permit required | city | Building permit fee; trade permits (plumbing/electrical) billed separately. | — | Generally allowed | A permit is required when relocating plumbing/electrical, moving walls, or changing fixtures. Cosmetic-only updates may be exempt. |
| Illinois | Permit required | city | Building permit fee; trade permits billed separately. | — | Generally allowed | A permit is required when relocating plumbing/electrical, moving walls, or changing fixtures. Cosmetic-only updates may be exempt. |
| Ohio | Permit required | city | Building permit fee; Columbus minimum $125, trade permits billed separately. | — | Generally allowed | A permit is required when relocating plumbing/electrical, moving walls, or changing fixtures. Cosmetic-only updates may be exempt. |
| Georgia | Permit required | city | Building permit fee; Atlanta minimum $150 plus $25 fee, trade permits billed separately. | — | Generally allowed | A permit is required when relocating plumbing/electrical, moving walls, or changing fixtures. Cosmetic-only updates may be exempt. |
| North Carolina | Permit required | city | Building + trade permits based on valuation; verify with the city. | Plan review typically 1–3 weeks plus trade inspections. | Generally allowed | Bathroom remodels that move fixtures, add ventilation, or alter plumbing/electrical require permits. Exempt: Any fixture relocation or new wet wall requires a permit. |
| Michigan | Permit required | city | Building + trade permits based on valuation; verify with the city. | Plan review typically 1–3 weeks plus trade inspections. | Generally allowed | Bathroom remodels that move fixtures, add ventilation, or alter plumbing/electrical require permits. Exempt: Any fixture relocation or new wet wall requires a permit. |
| New Jersey | Permit required | city | Construction + trade permits based on valuation; verify with the city. | Plan review commonly up to 20 business days plus trade inspections. | Generally allowed | Bathroom remodels that move fixtures, add ventilation, or alter plumbing/electrical require permits. Exempt: Any fixture relocation or new wet wall requires a permit. |
| Virginia | Permit required | city | Building + trade permits based on valuation; verify with the city. | Plan review ~10 business days plus trade inspections. | Generally allowed | Bathroom remodels that move fixtures, add ventilation, or alter plumbing/electrical require permits. Exempt: Any fixture relocation or new wet wall requires a permit. |
| Washington | Conditional | city | Valuation-based when plumbing is relocated. | Standard review for permitted scopes. | Generally allowed | Ventilation must meet code; exhaust to the exterior is required. Exempt: Fixture-for-fixture swap in place is often exempt. |
| Arizona | Conditional | city | Valuation-based when plumbing is relocated. | Standard review for permitted scopes. | Generally allowed | Ventilation to the exterior is required. Exempt: Fixture-for-fixture swap in place is often exempt. |
| Massachusetts | Conditional | city | Valuation-based when plumbing is relocated. | Standard review for permitted scopes. | Generally allowed | Ventilation to the exterior is required. Exempt: Fixture-for-fixture swap in place is often exempt. |
| Tennessee | Conditional | city | Valuation-based when plumbing is relocated. | Standard review for permitted scopes. | Generally allowed | Ventilation to the exterior is required. Exempt: Fixture-for-fixture swap in place is often exempt. |
| Indiana | Permit required | city | Building permit fee; trade permits (plumbing/electrical) billed separately. | — | Generally allowed | A permit is required when relocating plumbing/electrical, moving walls, or changing fixtures. Cosmetic-only updates may be exempt. |
| Maryland | Permit required | city | Building permit fee; trade permits billed separately. | — | Generally allowed | A permit is required when relocating plumbing/electrical, moving walls, or changing fixtures. |
| Wisconsin | Permit required | city | Building permit fee; trade permits (plumbing/electrical) billed separately. | Varies by municipality — typically several weeks for full plan review. | Generally allowed | A permit is required when relocating plumbing/electrical, moving walls, or changing fixtures. Cosmetic-only updates may be exempt. |
| Alaska | Conditional | city | Valuation-based when plumbing is relocated. | — | Generally allowed | Ventilation to the exterior is required; freeze protection for plumbing is reviewed. |
| Alabama | Conditional | city | Valuation-based when plumbing is relocated. | — | Generally allowed | Ventilation to the exterior is required. |
| Arkansas | Conditional | city | Valuation-based; Little Rock minimum building-permit fee $50 (work over $5,000 or requiring inspection). | — | Generally allowed | Ventilation to the exterior is required. |
| Colorado | Conditional | city | Valuation-based when plumbing is relocated. | — | Generally allowed | Ventilation to the exterior is required. |
| Connecticut | Conditional | city | Valuation-based when plumbing is relocated. | — | Generally allowed | Ventilation to the exterior is required. |
| Delaware | Conditional | county | Valuation-based when plumbing is relocated. | — | Generally allowed | Ventilation to the exterior is required. |
| Hawaii | Conditional | county | Valuation-based when plumbing is relocated. | Standard review for permitted scopes. | Generally allowed | Ventilation to the exterior is required. Verify with the county building department. Exempt: Fixture-for-fixture swap in place is often exempt. |
| Iowa | Conditional | city | Valuation-based when plumbing is relocated. | Standard review for permitted scopes. | Generally allowed | Ventilation to the exterior is required; new basement baths need egress. Exempt: Fixture-for-fixture swap in place is often exempt. |
| Idaho | Conditional | city | Valuation-based when plumbing is relocated. | Standard review for permitted scopes. | Generally allowed | Ventilation to the exterior is required. Verify with the local building department. Exempt: Fixture-for-fixture swap in place is often exempt. |
| Kansas | Conditional | city | Valuation-based when plumbing is relocated. | Standard review for permitted scopes. | Generally allowed | Ventilation to the exterior is required. Exempt: Fixture-for-fixture swap in place is often exempt. |
| Kentucky | Conditional | city | Valuation-based when plumbing is relocated. | Standard review for permitted scopes. | Generally allowed | Ventilation to the exterior is required. Exempt: Fixture-for-fixture swap in place is often exempt. |
| Louisiana | Conditional | city | Valuation-based when plumbing is relocated. | Standard review for permitted scopes. | Generally allowed | Ventilation to the exterior is required. Exempt: Fixture-for-fixture swap in place is often exempt. |
| Maine | Conditional | city | Valuation-based when plumbing is relocated. | Standard review for permitted scopes. | Generally allowed | Ventilation to the exterior is required. Licensed plumber needed for plumbing permits in Maine. Exempt: Fixture-for-fixture swap in place is often exempt. |
| Minnesota | Permit required | city | Building permit fee; trade permits (plumbing/electrical) billed separately. | Varies by municipality — typically several weeks for full plan review. | Generally allowed | A permit is required when relocating plumbing/electrical, moving walls, or changing fixtures. Cosmetic-only updates may be exempt. |
| Mississippi | Conditional | city | Where enforced, a building permit plus trade permits apply; verify locally. | Varies by jurisdiction. | Generally allowed | Relocating plumbing/electrical or moving walls requires a permit where a code is enforced. Cosmetic-only updates may be exempt. Confirm locally. |
| Montana | Conditional | city | Where enforced, a building permit plus trade permits apply; verify locally. | Where enforced, typically several weeks for full plan review. | Generally allowed | Relocating plumbing/electrical or moving walls requires a permit where a code is enforced. In non-certified areas, single-family homes are exempt from the state building permit but trade permits are still required. |
| North Dakota | Conditional | city | — | — | Generally allowed | Exterior ventilation is required; plumbing permits go through the State Plumbing Board (or local AHJ where enforcing). Exempt: Fixture-for-fixture swap in place is often exempt. |
| Nebraska | Permit required | city | Building permit fee; trade permits (plumbing/electrical) billed separately. | Varies by municipality — typically several weeks for full plan review. | Generally allowed | A permit is required when relocating plumbing/electrical, moving walls, or changing fixtures. Cosmetic-only updates may be exempt. |
| New Hampshire | Conditional | city | — | — | Generally allowed | Exterior ventilation is required. Licensed plumbers must pull the plumbing permit. Exempt: Fixture-for-fixture swap in place is often exempt. |
| New Mexico | Conditional | city | — | — | Generally allowed | Exterior ventilation is required. CID-licensed plumbers pull the plumbing permit. Exempt: Fixture-for-fixture swap in place is often exempt. |
| Nevada | Conditional | city | Valuation-based when plumbing is relocated. | Standard review for permitted scopes. | Generally allowed | Ventilation to the exterior is required; water-conservation fixtures are encouraged (Truckee Meadows Water Authority rebates). Exempt: Fixture-for-fixture swap in place is often exempt. |
| Oklahoma | Conditional | city | Valuation-based when plumbing is relocated. | Standard review for permitted scopes. | Generally allowed | Ventilation to the exterior required; plumbing under IPC 2018 with OK amendments. Exempt: Fixture-for-fixture swap in place is often exempt. |
| Oregon | Conditional | city | Valuation-based when plumbing is relocated. | Standard review for permitted scopes. | Generally allowed | Ventilation to the exterior required; plumbing under the Oregon Plumbing Specialty Code. Exempt: Fixture-for-fixture swap in place is often exempt. |
| Rhode Island | Conditional | city | Valuation-based when plumbing is relocated (statewide formula, $125 min). | Standard review for permitted scopes. | Generally allowed | Ventilation to the exterior required; plumbing under the Rhode Island State Plumbing Code. Exempt: Fixture-for-fixture swap in place is often exempt. |
| South Carolina | Conditional | city | Valuation-based when plumbing is relocated. | Standard review for permitted scopes. | Generally allowed | Ventilation to the exterior required; plumbing under the 2021 IPC with SC modifications. Exempt: Fixture-for-fixture swap in place is often exempt. |
| South Dakota | Conditional | city | Valuation-based when plumbing is relocated. | Standard review for permitted scopes. | Generally allowed | Ventilation to the exterior is required; licensed plumbers are required for plumbing permits statewide. Exempt: Fixture-for-fixture swap in place is often exempt. |
| Utah | Conditional | city | Valuation-based when plumbing is relocated. | Standard review for permitted scopes. | Generally allowed | Ventilation to the exterior and GFCI protection are required; Utah energy code may apply to alterations. Exempt: Fixture-for-fixture swap in place is often exempt. |
| Vermont | Conditional | city | Valuation-based when plumbing is relocated, where enforced. | Standard review for permitted scopes. | Generally allowed | Ventilation to the exterior and GFCI protection are required; RBES may apply to alterations. Exempt: Fixture-for-fixture swap in place is often exempt. |
| West Virginia | Conditional | city | Valuation-based when plumbing is relocated. | Standard review for permitted scopes. | Generally allowed | Ventilation to the exterior and GFCI protection are required; Charleston issues plumbing permits for relocations. Exempt: Fixture-for-fixture swap in place is often exempt. |
| Wyoming | Conditional | city | Valuation-based when plumbing is relocated, where enforced. | Standard review for permitted scopes. | Generally allowed | Ventilation to the exterior and GFCI protection are required; verify locally. Exempt: Fixture-for-fixture swap in place is often exempt. |