Houston, Missouri requires a city building permit before construction or remodeling of a primary structure, and Houston administers its own zoning.12 Houston City Hall supplies the building-permit application; these are city rules for Houston in Texas County.3 Septic construction permits follow Missouri onsite-wastewater requirements, but we could not confirm which agency administers them inside Houston; ask the Texas County Health Department before planning a system.45
At a glance
- Building permit
- City approval required before new construction or primary-structure remodeling1
- Zoning
- Houston administers its own zoning2
- RV living
- Outside approved RV parks, temporary visits only; 15 days per continuous 60-day period unless specially authorized6
- Septic construction
- Most installations and repairs need a construction permit; confirm the agency for the Houston address4
- Occupancy
- A new building needs a certificate of occupancy before move-in7
- Residential lot coverage
- 40% maximum in residential R zones, with specified exceptions8
Who to call
Building permits
Houston City Hall / Administration
City Hall contact for the building official, zoning questions, application forms and utility-connection questions
601 S Grand Ave.
Building permits
Houston Building Official / Building Inspections
Building-permit application, site and floor plans, and inspection contact
Septic permits
Texas County Health Department
Onsite sewage questions and a starting contact to confirm the permitting agency for a Houston address
950 N. Hwy 63 Houston, MO, 65483
Contact details are copied from each office’s official page and were checked against it on October 11, 2026.
Off-grid gear
Going off-grid in Houston means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in Houston, MO?
Houston requires a written application to the building official and a granted building permit before the construction, alteration, enlargement, moving or other listed work on a building or structure begins.1 Houston expressly requires a completed, approved application for all new construction and construction or remodeling of a primary structure.3 A Houston building permit expires if work has not commenced within 6 months or has not been completed within 2 years.1 Do not plan move-in around the building permit alone: Houston requires a certificate of occupancy before a new building is occupied.7
Who issues Houston building permits, and where do you apply?
Houston’s building official receives the written building-permit application, and application forms are available at City Hall.13 Houston City Hall’s administration office is at 601 S Grand Ave.; call 417-967-3348 to reach the city office.9 The application and plans go to the code official, and the city clerk keeps building-permit records.3 Houston’s application requires a site plan and, where applicable, a floor plan showing room dimensions and the structure’s location on the lot.10 Houston bases building-permit fees on applicable International Codes; ask City Hall for the current fee schedule and the inspection sequence for your project.11
Does Houston have zoning, and what limits the building site?
Houston administers its own zoning, so establish the parcel’s zoning district with the city before choosing a building layout.2 Houston’s residential R zones generally limit buildings and paved surfaces to 40% of lot area; qualifying detached rear-yard garages and front porches may increase coverage, and multifamily dwellings are exempt from the coverage requirement.8 Houston residential driveways must be at least 9 feet wide, and driveway or ramp slope may not exceed 15%.12 Ask the Houston building official for the parcel’s district-specific setbacks and lot-size requirements, along with confirmation of whether your proposed dwelling fits the district.29
How do septic construction permits work inside Houston?
Most onsite wastewater installations and repairs in Houston require a construction permit, although some single-family residential lots may be exempt.4 Missouri requires the applicant to determine the permitting agency for the work location and wait for a permit or confirmed exemption before starting.13 We could not confirm the Houston-specific septic authority; start with the Texas County Health Department and ask who handles the exact city address.5 The health department describes a soils morphology report as the first step toward designing an onsite system.5 Missouri DHSS application fees are temporarily suspended effective August 28, 2026, but local permitting processes may vary; confirm local charges with the administering office.14
Can you live in an RV or tiny home in Houston?
Houston allows RV occupancy outside an approved RV park only while temporarily visiting the property’s owner or occupant.6 Houston limits that occupancy to 15 days during a continuous 60-day period unless the city administrator issues a special written permit authorized by a majority of the board of aldermen.6 The visitor provision does not authorize ordinary full-time RV living while building a home; ask the city administrator about special authorization before relying on an RV for housing.6 We could not confirm a separate Houston tiny-home occupancy rule, minimum dwelling floor area or owner-builder exemption; ask the building official to review the proposed home under Houston’s zoning and building-permit requirements.21
Building a home in Houston: what should happen first?
Start at Houston City Hall with the parcel’s zoning district and proposed use, then prepare the building-permit application and required site and floor plans.2310 Before arranging onsite wastewater work, establish which agency has authority and obtain a septic construction permit or confirmed exemption.4 Submit the certificate-of-occupancy application for approval before the excavation or building permit is issued, as Houston’s enforcement provisions require.7 Wait for building-permit approval before construction begins, and obtain the certificate of occupancy before occupying the new building.37 Ask City Hall to confirm water and sewer connection requirements for the address; we could not confirm a general Houston connection threshold.9
What should you check before buying land in Houston?
For a Houston site in a special-flood-hazard area, new residential construction or substantial improvement must place the lowest floor, including the basement, at or above base-flood elevation where base-flood data is provided.15 Houston’s floodplain rules also impose anchoring and elevation conditions on manufactured homes; those provisions do not establish a citywide placement entitlement.16 Ask City Hall to identify the applicable floodplain contact before committing to a layout.9 For land outside Houston city limits, consult the Texas County guide for the unincorporated-area building-permit answer; the county’s no-building-permit answer is not Houston’s rule.171
Watch-outs
- Houston’s limited RV visitor allowance should not be treated as permission to live in an RV throughout home construction.6
- We could not confirm who administers septic construction permits inside Houston; ask the Texas County Health Department about the exact address before starting work.45
- Missouri’s county agricultural building-and-land-use exemption does not apply within incorporated portions of counties; do not assume a Houston farm building is exempt from city requirements.18
Sources
- Code of Ordinances, Sec. 25-23.10. Enforcement (Houston), quoted and re-checked
- Code of Ordinances, Sec. 25-12.10. Definitions (Houston), quoted and re-checked
- Code of Ordinances, Sec. 25-23.10. Enforcement (Houston), quoted and re-checked
- OWTS Construction Permit Process (Houston), quoted and re-checked
- Texas County Health Department (texascountyhealth.org)
- Code of Ordinances, Sec. 21-121. Parking of recreational vehicles outside of recreational vehicle parks (Houston), quoted and re-checked
- Code of Ordinances, Sec. 25-23.10. Enforcement (Houston), quoted and re-checked
- Code of Ordinances, Sec. 25-15.10. Residential zones defined (Houston), quoted and re-checked
- Houston City Hall / Administration (houstonmo.org)
- Houston Building Official / Building Inspections (houstonmo.org)
- Code of Ordinances, Sec. 25-23.10. Enforcement (Houston), quoted and re-checked
- Code of Ordinances, Sec. 25-18.10. Off-street parking (Houston), quoted and re-checked
- OWTS Construction Permit Process (Missouri statewide rule), quoted and re-checked
- OWTS Construction Permit Process (Missouri statewide rule), quoted and re-checked
- library.municode.com (Houston), quoted and re-checked
- Code of Ordinances, Sec. 14-82. Specific standards (Houston), quoted and re-checked
- State of Missouri - County Building Codes for Missouri (data.mo.gov) (2026 county census)
- RSMo Section 64.890 — Building and land use restrictions; exemptions (Missouri statewide rule), quoted and re-checked
Written October 11, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.