Building Safety in Cass County, MO (2026)
6 rules for unincorporated Cass County, Missouri.
Verified from official government sources
Fire Sprinkler Requirements
Cass County Code Section 225.707 requires new lodging establishments in the unincorporated county, meaning hotels, motels, cabins and similar facilities with five or more guest rooms, to be protected throughout by an approved, supervised automatic sprinkler system built to NFPA 13R for residential occupancies up to four stories. Bed and breakfasts and small buildings with ground-level exterior guest room doors are exempted from the sprinkler mandate.
New Lodging Buildings Need Fire Sprinklers
Some RestrictionsCass County Code § 225.707(B), (C)
B. All buildings shall be protected throughout by an approved, supervised automatic sprinkler system in accordance with the most current National Fire Systems or the National Fire Protection Association 13R Standard for the Installation of Sprinkler Systems in Residential Occupancies up to and Including Four (4) Stories in Height or equivalent code. C. Bed and breakfasts and buildings with no m...
Carbon Monoxide Detectors
Cass County Code Section 225.710(A)(9) requires lodging establishments in the unincorporated county, meaning hotels, motels, cabins and similar facilities with fuel-fired equipment, attached parking garages or wood-burning fireplaces, to install carbon monoxide detectors. Detectors must be hardwired with battery backup, tested monthly, and kept at least five feet from gas-fueled appliances and away from cooking or bathing areas.
Carbon Monoxide Detectors Required at Lodging Facilities
Some RestrictionsCass County Code § 225.710(A)(9)
9. Facilities using fuel-fired equipment or appliances that pose a potential carbon monoxide risk, including facilities with attached parking garages or wood burning fireplaces, shall install a carbon monoxide detector(s). Carbon monoxide detectors shall be installed according to manufacturer's specifications and should not be placed within five (5) feet of gas-fueled appliances or near cooking...
Building Permits
Unincorporated Cass County has adopted the 2006 International Building Code as its Building Code, and the Building Codes Department administers it as the Code Official. A building permit is required for construction, alteration, or repair work in the unincorporated county unless the project falls under the code's narrow exemption for small accessory structures.
Cass County Building Permit Requirements
Some RestrictionsCass County Code § 500.010
A certain document, three (3) copies of which one (1) copy is on file in the office of the Cass County Clerk and the remaining two (2) copies may be maintained in the Building Codes office of the County of Cass, Missouri, being marked and designated as the International Building Code, 2006 Edition, including Appendix Chapters C, E and H, as published by the International Code Council, Inc., be ...
Electrical Permits
Unincorporated Cass County requires an electrical permit before any wiring work under the county's adopted National Electrical Code, NFPA 70, 2005 Edition. The Building Codes Department administers and inspects the work, and permit issuance carries a flat $102.00 fee under the county's fee schedule.
Cass County Electrical Permits (NEC)
Some RestrictionsCass County Code § 500.060
A. A certain document, three (3) copies of which one (1) copy is on file in the office of the Cass County Clerk and the remaining two (2) copies may be maintained in the Building Codes office of the County of Cass, Missouri, being marked and designated as the National Electrical Code, NFPA 70, 2005 Edition, including Annex Chapters A, B, C, D and G as published by the National Fire Protection A...
Plumbing Permits
Unincorporated Cass County requires a plumbing permit under the county's adopted International Plumbing Code, 2006 Edition. The Building Codes Department administers permits, which cost $85.00 to issue, and the county's own amendment sets a 12-inch minimum sewer burial depth.
Cass County Plumbing Permits (IPC)
Some RestrictionsCass County Code § 500.070
A. A certain document, three (3) copies of which one (1) copy is on file in the office of the Cass County Clerk and the remaining two (2) copies may be maintained in the Building Codes office of the County of Cass, Missouri, being marked and designated as the International Plumbing Code, 2006 Edition, including Appendix Chapters B, E and F, as published by the International Code Council, Inc., ...
Building Inspections
Unincorporated Cass County ties a building permit's validity to requesting an inspection: the county's amended IBC Section 105.5 voids a permit if the permit holder doesn't request an inspection within 180 days of issuance, and requires all work to be finished and approved within one year. Re-inspections cost $100.00, and after-hours inspections run $121.25 per hour.
Cass County Building Inspection Process
Some RestrictionsCass County Code §§ 500.010, 500.020
IBC Section 105.5 Delete in its entirety. Amend as follows: Expiration. Every permit issued shall become invalid unless the work authorized by such permit is commenced and an inspection has been requested by the permit holder within one hundred eighty (180) days after its issuance or if the building or work authorized by such permit is suspended or abandoned at any time after the work is commen...
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