Carthage, Missouri Building Permit Guide

Inside Carthage city limits, building, electrical and plumbing permits come from the Public Works Department, which also licenses contractors and inspects the work. Under City Code Section 6-17 a building permit costs $20 for work valued up to $5,000 and $2 for each $1,000 above that, and projects are checked against the 2018 International Codes and the 2017 National Electrical Code.

What requires a building permit in Carthage?

Public Works lists these activities as needing a permit: building and construction work, plumbing, electrical, roofing, siding, fences, signs, excavation, driveways, swimming pools, demolition, house moving, and sidewalk, curb and gutter work.

The City Code adds that repairs or alterations valued at $50 or less need no permit. The City’s amendments to the residential code cut the permit-free size for one-story sheds and similar accessory buildings from 200 to 120 sq ft, limit the fence exemption to fences up to 4 feet high, and delete two more exemptions (items 5 and 10 of Section R105.2, which in the 2018 code cover sidewalks and driveways, and small decks); the Public Works permit list names fences without a height limit. Starting work that needs a permit without one is a violation of City ordinances and can lead to a fine.

Carthage building department: who handles permitting

The Public Works Department runs Building Code Inspection alongside the Street Department, code enforcement, GIS mapping and the recycling center, and it also handles floodplain, stormwater and erosion control matters. Josiah Bayless is the Public Works Director; under the City Code the director is also the City’s electrical inspector and its floodplain administrator.

Business licences are issued at City Hall, but the certificate of occupancy a new business needs is applied for at Public Works.

Applying for a Carthage permit

A residential building permit can be taken out by the property owner or by a contractor holding a current City contractor’s licence. An owner may do the work on the family home they live in only if they buy all the materials and do all the labor themselves, pass the required inspections and receive a certificate of completion; any other work must be done by permitted, licensed contractors.

Every commercial project goes through plan review. The commercial application is filed with the plan review fee, which is based on the total cost of the work shown on the plans, including finishes, painting, roofing, plumbing, mechanical and fire protection systems. Plans must be signed and stamped by a Missouri-licensed design professional, and four paper sets plus a digital set are required. If plans are not approved they are revised and resubmitted, and further review fees may apply. Every new commercial building must have a Knox Box rapid entry system.

A certificate of occupancy is part of the building permit for a new house or other new occupied space. A new business, a change of ownership or a change of use (for example, office to retail or retail to restaurant) needs its own certificate of occupancy application, and an inspection is scheduled with the Building Inspector; if the occupancy class does not change, the inspection may be waived.

Carthage permit fees

Building permit fees are set in City Code Section 6-17. The project value is either supplied by the applicant and checked by the building official, or worked out from the published building valuation data for the project’s square footage, multiplied by 0.87 for Carthage.

For example, a project valued at $250,000 pays $20 plus 245 × $2, or $510, for the building permit. Commercial plan review is billed separately when plans are submitted.

On June 2, 2026 the Public Works Committee approved valuing permits with the 2025 building valuation data, the City’s first permit fee increase since 2018, and a 25% increase in plan review fees, and the change was reported to the City Council on June 9, 2026. No ordinance followed: Section 6-17 already calls for the valuation data published each February, and the plan review fee amounts are not set in the City Code or published by the City.

Contractor licences and trade permits

Public Works issues all contractor licences, which run for the calendar year; renewals usually open in December. Anyone hired to provide a service in the city, and anyone working in construction, generally needs one.

Every licence holder files a certificate of liability insurance and either workers’ compensation coverage or a notarized exemption affidavit, naming the City of Carthage as certificate holder. Electrical and plumbing licences go only to an owner who holds, or employs someone who holds, a City journeyman or master certificate; certificates are issued on Block, Experior or Thompson Prometric test scores or a comparable licence from another approved jurisdiction. A holder of the Missouri statewide electrical contractor licence pays no City electrical contractor licence fee but still files the application and insurance.

Electrical permits go to licensed electrical contractors, except that an owner may get a permit for their own electrical work. An electrical permit is void if not used within 90 days. New installations and service upgrades must include an external disconnect, and Carthage Water & Electric’s rules govern water service lines.

What to submit

Structural design values used by the City are a 20 psf ground snow load and a 90 mph wind speed, and footings must reach 30 inches below finish grade. For houses, footings must be at least 14 inches wide and 12 inches thick, every masonry foundation needs a #4 bar at least every 6 feet, trusses and rafters must be fastened with mechanical connectors rather than toe-nails alone, and pole-barn construction is limited to commercial and accessory buildings.

How to get a Carthage building permit

Carthage inspections

Request each inspection from Public Works at least 24 hours ahead (417-237-7010). The City’s inspection list, which varies by project, includes:

• Site grading and erosion control, where they apply
• Footings and forms, with steel in place; stem walls
• Under-slab plumbing, left uncovered; then the slab, with steel, mesh and vapor barrier in place
• Open floor, before subfloor decking
• Framing, fire walls and rough-in plumbing, before insulation
• Sewer line in the trench with tracer wire, and the connection to the main, left uncovered
• Certificate of occupancy walk-through before the building is used

Electrical work is inspected within 24 hours of notice, not counting weekends and holidays; approved work gets a green tag on the panel, and a red tag lists defects to fix. Extra trips caused by a wrong address, unfinished work or code violations cost $25 for residential and $50 for commercial or industrial work.

Local Carthage rules

Floodplain: Carthage takes part in the National Flood Insurance Program, using Jasper County flood maps dated March 16, 2006 and November 2, 2012. Any development in a mapped A or AE zone needs a floodplain development permit from the Public Works Director, and new or substantially improved homes must have the lowest floor, including any basement, 1 foot above the base flood elevation. In July 2026 the Council heard that a state contractor is updating the flood map, with changes not expected to take effect before late 2027.

Short-term rentals: on May 26, 2026 the Council added short-term rentals to the zoning code as a special use with set standards (Ordinance 26-35, Section 25-251(19)).

Historic preservation: the Planning, Zoning and Historic Preservation Commission holds public hearings on requests for certificates of appropriateness, such as the requests for exterior signage and a building rehabilitation on its May 4, 2026 agenda.

Missouri building code

Missouri has no mandatory statewide building code for private construction: a county, fire protection district or municipality may adopt one (usually by reference under RSMo 67.280), and in parts of the state none has. Building codes in Missouri

Carthage building permit FAQ

Who issues building permits in Carthage?

The City of Carthage Public Works Department at 623 E. 7th Street (417-237-7010).

How much is a building permit in Carthage?

$20 for work valued up to $5,000, plus $2 for every $1,000 above that. A $250,000 project pays $510, with electrical and plumbing permits extra.

Can I do my own work?

Yes, on the home you live in, if you buy all the materials, do all the labor yourself, get the permit and pass the inspections.

Do I need a permit for a fence, roof or siding?

Yes. Fences, roofing and siding are all on the Public Works list of activities that need a permit.

Which codes does Carthage use?

The 2018 International Building, Residential, Plumbing, Mechanical, Fuel Gas, Existing Building, Fire, Property Maintenance and Swimming Pool and Spa Codes, and the 2017 National Electrical Code.

How long does an electrical permit last?

It is void if not used within 90 days.

Carthage permit search and official resources

• Carthage residential construction permits
• Carthage commercial construction permits
• Carthage list of activities that need a permit
• Carthage inspection schedule
• Carthage codes in effect
• Carthage contractor licensing
• Carthage certificate of occupancy and business licensing
• Carthage City Code Chapter 6, Article II, building code and permit fees
• Carthage City Code Chapter 6, Article III, electrical permits and licences
• Carthage City Code Chapter 6, Article VI, plumbing
• Carthage City Code Chapter 6, Article X, residential code amendments
• Carthage City Code Chapter 17, Article VI, floodplain management
• Carthage agendas and minutes (CivicClerk)
• Carthage Public Works quick links

Simplify Carthage permitting with Alliance Permitting

Alliance Permitting is a permit documentation and submission company in Missouri. We prepare your paperwork, file it correctly and coordinate with the permitting authority through issuance. We are not a contractor and we do not perform licensed plan review or inspections; that work stays with your licensed team and the jurisdiction.

This guide is provided by Alliance Permitting for general information about Carthage permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.