Cass County, MO Building Safety: Building Inspections (2026)
Key Facts
- Inspection request deadline
- 180 days after permit issuance
- Permit expiration
- Work approved within 1 year of issuance
- Re-inspection fee
- $100.00 flat
- After-hours inspection
- $121.25/hour, 2-hour minimum
- Unlisted inspection fee
- $90.00
Summary
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.
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 commenced for a period of one hundred eighty (180) days. ... Extensions. A permittee holding an unexpired permit may apply for an extension of the time within which work may be completed under that permit. ... Renewal of expired permit when work has been started. A permittee holding an expired permit may apply for a renewal of the permit to allow for the completion of the work started. ... 5. ... Inspections outside of normal business hours (minimum charge — two hours) if available. $121.25 per hour 6. Re-inspection fees assessed $100.00*
Full Breakdown
5 for the county's own inspection timeline. "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," and the same 180-day clock restarts if work is suspended or abandoned once it has begun. " Separately, the Code Official under the technical codes lets a permit run for up to one year from issuance before it expires by limitation if the work is not completed and approved.
020 prices an extension evaluation inspection off the fee tables for the permit type. If the permit has already lapsed and work has started, the holder can apply for a renewal and pay a new full permit fee to keep going, subject to the same 180-day and one-year clocks; if no work has started at all, the county requires a brand-new permit application, and won't renew a lapsed no-work permit if the applicable codes changed after the original permit issued. 00.
Violations & Fines
A permit that lapses under Section 500.010 without a renewal or extension leaves any further work unpermitted, and Cass County Code Section 100.210's General Penalty then applies: a civil penalty of up to $1,000.00, with "every day any violation of this Code shall continue" counted as a separate offense until the Building Codes Department signs off.
Frequently Asked Questions
How soon must I request an inspection after getting a Cass County building permit?
How much does a re-inspection cost in Cass County?
How long can a Cass County building permit stay open before it expires?
Sources & Official References
Other rules in Cass County
Compare Cass County to another location·View the Missouri building safety overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.