Benton County, Missouri Building Permit Guide

Benton County has adopted neither a building code nor planning and zoning, so there is no county building permit for unincorporated land. The county’s own steps are a 911 address from Central Dispatch, a septic permit from the Benton County Health Department and floodplain review by Emergency Management. Since August 10, 2026 a Commission moratorium on data centers has been in place. Warsaw, Lincoln and Cole Camp each require building permits inside their limits; in Warsaw a new house costs $0.25 per sq ft of finished living space with inspections included.

Benton County building department: who handles permitting

No county office issues building permits. Commission minutes record the question coming up repeatedly: in January 2024 the commissioners said adopting the International Building Code had merit but would be very costly, and from February 2025 to September 2026 the Presiding Commissioner told residents asking for planning and zoning that, on the advice of the county’s counsel, it would have to be approved by a vote of county residents. The Commission meets on Mondays from 9:00 a.m.; to get on the agenda, call the County Clerk at 660-438-7326. The Commission’s own number is 660-438-7406.

Populations below are Census Bureau Vintage 2025 estimates.

Warsaw building permit fees

Warsaw, the county seat, sets its fees in Section 500.040 of its code. Fees are paid before the permit is issued, the permit must be visible from the street, and starting dirt work or construction without a permit brings a penalty of 150% of the standard fee.

For example, a house with 1,500 sq ft of finished living area pays $375. Commercial valuations are worked out from building valuation data, the 2003 Missouri modifier and the floor area. A Warsaw permit lasts one year, and the Code Enforcement Officer can extend it by up to 180 days for unavoidable delays. In Cole Camp, plans must be drawn to scale and show the distances to every lot line; its residential guidelines limit houses to 2½ stories or 35 ft, require 25 ft front and rear yards and 10 ft side yards, and cap lot coverage at 30%.

Moratorium, addresses, septic and floodplain

911 addresses: apply at Benton County Central Dispatch, 1231 Hirsch Parkway, Warsaw, from 8:00 a.m. to 4:00 p.m. on weekdays, with the parcel number, a plan showing where the driveway will go and a GIS map of the site. The address takes about 2 to 3 business days. Address signs cost $30 one-sided or $45 two-sided, with brackets at $15 or $20, cash only, and the sign must be placed in front of the house.

Septic systems: the Missouri Department of Health and Senior Services lists the Benton County Health Department, 1238 Commercial, Warsaw (660-438-2876), as the permitting authority under the county’s own onsite wastewater ordinance, which may add requirements beyond the state minimum.

Floodplain: Benton County is in the National Flood Insurance Program on flood maps dated June 2, 2009, and SEMA lists the county’s floodplain administrator at the Emergency Management office, 1231 Hirsch Parkway, Warsaw (660-438-9555). Commission minutes from March and April 2025 discuss new flood maps that FEMA and SEMA have proposed for the county. Warsaw and Lincoln also take part in the program; FEMA lists Cole Camp as not participating.

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

Benton County permit FAQs

Do I need a building permit in unincorporated Benton County?

No county building permit exists, because the county has not adopted a building code or zoning. A new septic system still needs a Health Department permit, and Central Dispatch assigns 911 addresses.

Who issues septic permits in Benton County?

The Benton County Health Department in Warsaw (660-438-2876), under the county’s onsite wastewater ordinance.

How much is a building permit for a house in Warsaw?

$0.25 per sq ft of finished living area, with inspections included; a 1,500 sq ft house is $375.

What building code does Warsaw use?

The 2015 International Building, Residential, Mechanical, Plumbing, Fire and Fuel Gas Codes and the 2014 National Electrical Code.

How do I get an address for a new house in Benton County?

Apply at Central Dispatch, 1231 Hirsch Parkway, Warsaw, with the parcel number, driveway plan and GIS map; it takes about 2 to 3 business days.

Does Benton County have a data center moratorium?

Yes. The County Commission approved one on August 10, 2026; its text is not posted, so ask the Commission at 660-438-7406 whether a project is covered.

Is Benton County adopting zoning?

No zoning has been adopted. The Presiding Commissioner has told residents, most recently in September 2026, that county planning and zoning would need a public vote.

Benton County permit search and official resources

• Benton County Commission agendas and minutes
• Benton County Commission minutes, August–September 2026 (data center moratorium)
• Benton County Commission minutes archive
• Benton County Central Dispatch, applying for a 911 address
• Benton County Emergency Management
• Missouri DHSS onsite wastewater permitting authority by county
• SEMA emergency management and floodplain contacts, Benton County
• FEMA Community Status Book, Missouri
• City of Warsaw building codes, permits and fees (Chapter 500)
• City of Cole Camp building regulations (Chapter 500)
• City of Cole Camp guidelines for a building permit
• City of Lincoln permits and licenses

Simplify Benton County 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 Benton County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.