Bolthole Index

Daviess County, Missouri

Building permits, zoning and septic rules in Gallatin, Missouri

Gallatin, Missouri requires building permits for construction and qualifying alterations inside city limits.1 Gallatin has its own zoning districts, even though Daviess County has no county-level comprehensive zoning.23 Where public sewer is unavailable, Gallatin’s City Superintendent issues the city’s private-sewage permit and inspects the installation; the county health department is a separate contact for state onsite-wastewater jurisdiction.45

At a glance

Building permits
Required for construction and qualifying alterations inside city limits1
Zoning
City zoning districts and Official Zoning Map apply2
Private sewage
City Superintendent permit before construction; $25 permit and inspection fee6
Minimum dwelling size
R-1 and R-2: 750 square feet on the ground floor, excluding garages and porches78
Single-family lot area
R-1 and R-2: at least 7,500 square feet; subsurface sewage absorption requires at least 15,000 square feet9106
Manufactured homes
R-1 and R-2 impose foundation, photo, age and hearing conditions; mobile homes on individual lots are prohibited1112

Who to call

Building permits

Gallatin City Hall

Starting contact for the Zoning Administrator, building application and City Superintendent

(660) 663-2011

112 E Grand, Gallatin, MO, 64640

Zoning

Gallatin Zoning Administrator

Building-permit applications on City forms, with plans and specifications requested by the City

Septic permits

Gallatin City Superintendent

City private-sewage permits, installation inspections and public-sewer connection approvals

Septic permits

Daviess County Health Department

Contact for Missouri onsite-wastewater permitting jurisdiction; Gallatin’s city permit remains a separate requirement

6606632414

609a South Main Street

Contact details are copied from each office’s official page and were checked against it on October 12, 2026.

Off-grid gear

Going off-grid in Gallatin means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in Gallatin, MO?

Gallatin requires a building permit before construction or qualifying alterations within city limits; the requirement covers buildings, structures and trailer homes.1 Ask the Gallatin Zoning Administrator to classify the proposed work and identify any applicable exception before starting.13 Apply to the Zoning Administrator using City forms and supply the plans and specifications the City requests in writing.13 Gallatin’s Mayor and Board of Aldermen arrange or conduct inspections to enforce conformity with the application and plans.13

A Gallatin building permit does not replace zoning compliance: the proposed building and use must also meet the applicable district regulations.2 For land outside city limits, use the Daviess County guide for the county’s separate answer; the county’s absence of comprehensive zoning does not remove Gallatin’s city zoning.32

Who handles building applications and zoning in Gallatin?

Start with Gallatin City Hall, whose official forms page lists the building-permit application, and ask to reach the Zoning Administrator.14 Gallatin City Hall lists (660) 663-2011 and 112 E Grand, Gallatin, MO, 64640 as its contact details.14 The adopted code directs building applications to the Zoning Administrator rather than a county planning counter.13

Before submitting a Gallatin application, ask the Zoning Administrator which plans are required for the proposed work.13 Sewage approval follows a separate route: Gallatin’s City Superintendent signs private-sewage permits, while the Daviess County Health Department is the contact to clarify the state onsite-wastewater permitting layer and any municipal jurisdiction exception.45

Does Gallatin have zoning, lot-size and home-size rules?

Gallatin’s Official Zoning Map determines the applicable district, and buildings and uses must comply with that district’s regulations.2 Gallatin’s R-1 district requires at least 7,500 square feet of lot area, and the same minimum applies to single-family dwellings in R-2.910 In both Gallatin districts, dwellings need at least 750 square feet on the ground floor, excluding garages and porches.78

Gallatin’s R-1 district also limits lot coverage to 40% and building height to 35 feet or two and one-half stories.1516 A zoning-compliant lot can still be too small for subsurface sewage absorption: Gallatin prohibits that permit below 15,000 square feet.6 Ask the Zoning Administrator to identify the parcel’s district before choosing a house plan.132

How do septic permits and sewer connections work in Gallatin?

Where public sewer is unavailable in Gallatin, obtain a written private-sewage permit from the City Superintendent before construction, using a City form and any requested plans or specifications.6 Gallatin’s private-sewage permit and inspection fee is $25, and subsurface absorption facilities require a lot of at least 15,000 square feet.6 Notify the Superintendent before covering underground work; the code calls for inspection within 24 hours after notice and makes permit effectiveness contingent on satisfactory completion.17

Gallatin’s sewer code contains different connection-distance thresholds, so ask the Superintendent which provision applies to the parcel before budgeting for septic.18 The residential sewer connection charge is $250 plus materials, with street and sidewalk cutting and repair charged at actual cost.18 Ask Daviess County Health Department whether an additional state-administered approval applies inside Gallatin; a city sewage permit should not be treated as confirmation of state jurisdiction.519

Can you live in an RV, tiny home or manufactured home in Gallatin?

We could not confirm Gallatin’s rules for living in an RV or camping on a private lot; ask the Zoning Administrator about the proposed use before relying on temporary housing during construction.132 We could not confirm a separate Gallatin tiny-home occupancy rule, but dwellings in R-1 and R-2 must meet the 750-square-foot ground-floor minimum, excluding garages and porches.78

Gallatin allows manufactured homes in R-1 and R-2 subject to permanent-foundation or pre-manufactured-building requirements, a submitted photo, a 5-year age limit and a public hearing before permit issuance.1112 Gallatin prohibits mobile homes on individual lots in those districts.1112 Off-grid sanitation is also constrained: Gallatin permits private sewage disposal only under the code’s exception for unavailable public sewer, with City approval and inspection.20

What steps should you take before building a home in Gallatin?

First, ask Gallatin’s Zoning Administrator to confirm the parcel’s zoning district and compare the proposed dwelling and lot with the applicable requirements.213 Next, ask the City Superintendent whether public sewer service is available and which sewer-connection provision applies; where private sewage disposal is allowed, obtain the written City permit before construction.186 Confirm state onsite-wastewater jurisdiction with Daviess County Health Department before installing or repairing a system.519

Then submit the Gallatin building application on City forms with requested plans and specifications.13 If the Gallatin site is in a floodplain, Missouri’s community floodplain-development permit requirement is a separate issue to resolve before development.21 For private sewage work, arrange the Superintendent’s inspection before underground portions are covered.17

Watch-outs

  • Gallatin’s sewer code uses both 400-foot and 100-foot connection thresholds in separate provisions; ask the City Superintendent which applies to the parcel.18
  • Gallatin’s R-1 and R-2 single-family lot minimum is smaller than the minimum lot for subsurface sewage absorption, so confirm sewer availability before purchasing a lot.9106
  • We could not confirm Gallatin’s owner-builder exemption or occupancy documentation; ask the Zoning Administrator for the current requirements before starting work.13

Sources

  1. Chapter 500 Building Codes and Regulations - City of Gallatin, MO (Gallatin), quoted and re-checked
  2. Article II: Designation Of Districts And District Provisions - City of Gallatin, MO (Gallatin), quoted and re-checked
  3. Minutes of the Daviess County Commission, October 2, 2024, quoted and re-checked
  4. Chapter 710 Public and Private Sewers - City of Gallatin, MO (Gallatin), quoted and re-checked
  5. OWTS Construction Permit Process — Daviess County listing (2026 county census)
  6. Chapter 710 Public and Private Sewers - City of Gallatin, MO (Gallatin), quoted and re-checked
  7. Article II: Designation Of Districts And District Provisions - City of Gallatin, MO (Gallatin), quoted and re-checked
  8. Article II: Designation Of Districts And District Provisions - City of Gallatin, MO (Gallatin), quoted and re-checked
  9. Article II: Designation Of Districts And District Provisions - City of Gallatin, MO (Gallatin), quoted and re-checked
  10. Article II: Designation Of Districts And District Provisions - City of Gallatin, MO (Gallatin), quoted and re-checked
  11. Article II: Designation Of Districts And District Provisions - City of Gallatin, MO (Gallatin), quoted and re-checked
  12. Article II: Designation Of Districts And District Provisions - City of Gallatin, MO (Gallatin), quoted and re-checked
  13. Gallatin Zoning Administrator (ecode360.com)
  14. Gallatin City Hall (cityofgallatinmo.org)
  15. Article II: Designation Of Districts And District Provisions - City of Gallatin, MO (Gallatin), quoted and re-checked
  16. Article II: Designation Of Districts And District Provisions - City of Gallatin, MO (Gallatin), quoted and re-checked
  17. Chapter 710 Public and Private Sewers - City of Gallatin, MO (Gallatin), quoted and re-checked
  18. Chapter 710 Public and Private Sewers - City of Gallatin, MO (Gallatin), quoted and re-checked
  19. OWTS Construction Permit Process (Missouri statewide rule), quoted and re-checked
  20. Chapter 710 Public and Private Sewers - City of Gallatin, MO (Gallatin), quoted and re-checked
  21. Floodplain Forms (Missouri statewide rule), quoted and re-checked

Written October 12, 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.

Answers from the rulebook for Gallatin

Gallatin’s own rules

  • Building permitRequired

    Construction and alteration inside Gallatin city limits.

    • Section 500.020 is titled Construction, Alteration — Permit Required.
    • The detailed permit exceptions and application requirements were not established from the opened text.
    “Within the City limits of the City of Gallatin it shall be unlawful to construct or alter any building, structure or trailer home when the exterior dimensions are changed, when the cost of such construction/alteration exceeds one hundred dollars ($100.00), or if utility service is effected in any way, regardless of the cost of the construction, without having first secured a permit therefor.”
  • Local zoningPresent

    Land inside Gallatin city limits.

    • Buildings and uses must comply with the applicable zoning district regulations.
    • The Official Zoning Map is incorporated into Chapter 405.
    “For the purposes of this Chapter, the City of Gallatin is hereby divided into zoning districts as shown on the Official Zoning Map, which, together with all explanatory matter thereon, is hereby incorporated by reference and declared to be a part of this Chapter.”
  • Minimum dwelling sizeSpecified

    Dwellings in the R-1 Single-Family Residence District inside Gallatin city limits.

    • The minimum is measured on the ground floor.
    • Garages and porches are excluded.

    minimum dwelling size: >= 750 square feet (ground floor; excluding garages and porches)

    “Minimum size for a dwelling is seven hundred fifty (750) square feet on ground floor and excluding garages and porches.”
    One more reviewed finding on this topic
  • Minimum lot sizeSpecified

    Single-family residential lots in the R-1 district inside Gallatin city limits.

    minimum lot area: >= 7500 square feet

    “Minimum lot area: seven thousand five hundred (7,500) square feet.”
    One more reviewed finding on this topic
  • Lot coverageSpecified

    Lots in the R-1 district inside Gallatin city limits.

    maximum lot coverage: <= 40 percent

    “Maximum lot coverage: forty percent (40%).”
  • Building heightSpecified

    Buildings in the R-1 district inside Gallatin city limits.

    • The maximum is expressed as either two and one-half stories or 35 feet.

    maximum building height: <= 35 feet (or two and one-half stories)

    “Maximum height: two and one-half (2 1/2) stories or thirty-five (35) feet.”
  • Manufactured homesLimited

    Manufactured homes in the R-1 Single-Family Residence District inside Gallatin city limits.

    • Manufactured homes must be on permanent foundations or be pre-manufactured buildings.
    • The applicant must furnish a photo before a permit is issued.
    • A five-year age limit applies.
    • A public hearing occurs before permit issuance.
    • Mobile homes on individual lots are prohibited.

    manufactured-home age limit: <= 5 years (applies to manufactured homes or buildings)

    “Manufactured homes on permanent foundations or pre-manufactured buildings. The applicant must furnish a photo of the proposed manufactured home or pre-manufactured building to the Planning and Zoning Commission before a permit is issued, and a five-year age limit is placed on manufactured homes or buildings. A public hearing will be held prior to the issuance of a permit to allow residents opportunity to express concerns.”
    One more reviewed finding on this topic
    • Limited — Manufactured homes in the R-2 One- and Two-Family Residence District inside Gallatin city limits.
      “Manufactured homes on permanent foundation or pre-manufactured buildings. The applicant must furnish a photo of the proposed manufactured home or pre-manufactured building to the Planning and Zoning Commission before a permit is issued, and a five-year age limit is placed on manufactured homes or buildings. A public hearing will be held prior to the issuance of a permit to allow residents opportunity to express concerns.”
  • Who permits septicMixed (with conditions)

    Private sewage disposal systems inside Gallatin city limits where public sewer is unavailable.

    • The City Superintendent issues the written permit and inspects the installation.
    • The system type, capacity, location, and layout must comply with recommendations of the Missouri Department of Public Health.
    “Before commencement of construction of a private sewage disposal system, the owner shall first obtain a written permit signed by the Superintendent.”
  • Septic permitRequired

    Private sewage disposal systems inside Gallatin city limits where a public sanitary or combined sewer is not available.

    • A written permit signed by the Superintendent must be obtained before construction.
    • The application must use a City form and may require plans, specifications, and other information.
    • The permit and inspection fee is $25, payable when the application is filed.
    • No permit may issue for subsurface soil absorption facilities on a lot smaller than 15,000 square feet.
    • When public sewer becomes available, connection is required within 60 days and the private system must be cleaned and filled.

    permit and inspection fee: 25 USD (paid when application is filed) · minimum lot area for subsurface soil absorption: >= 15000 square feet (no permit may issue below this area) · connection deadline after public sewer becomes available: 60 days (private system must then be closed)

    “Before commencement of construction of a private sewage disposal system, the owner shall first obtain a written permit signed by the Superintendent.”
  • Septic inspectionRequired

    Private sewage disposal system installations inside Gallatin city limits.

    • The Superintendent may inspect at any construction stage.
    • The applicant must notify the Superintendent for final inspection before underground portions are covered.
    • The inspection must be made within 24 hours after notice.
    • The permit is not effective until installation is completed to the Superintendent's satisfaction.

    inspection response time: 24 hours (after receipt of notice)

    “The inspection shall be made within twenty-four (24) hours of the receipt of notice by the Superintendent.”
  • Off-grid sanitationLimited

    Private sewage disposal and other off-grid sanitation inside Gallatin city limits.

    • Except where the code permits private sewage disposal because public sewer is unavailable, construction or maintenance of privies, septic tanks, cesspools, or other sewage-disposal facilities is unlawful.
    • A private system requires a City permit, inspection, and compliance with Missouri Department of Public Health recommendations.
    “Except as hereinafter provided, it shall be unlawful to construct or maintain any privy, privy vault, septic tank, cesspool or other facility intended or used for the disposal of wastewater.”
  • Mandatory utility hookupSewer (with conditions)

    Properties used for human occupancy, employment, recreation, or other purposes inside Gallatin city limits when a City public sanitary sewer is located or may be located in the abutting street, alley, or right-of-way.

    • Connection is required within 90 days after official notice when the public sewer is within 400 feet of the property line.
    • Section 710.060 separately provides a 100-foot threshold for property abutting a public sanitary or combined sewer.
    • The sewer connection charge for residential connections is $250 plus cost of materials; sidewalk and street cutting and repair are charged at actual cost.

    connection deadline after official notice: 90 days (when the applicable public sewer-distance condition is met) · public sewer distance: <= 400 feet from property line (Section 710.030 threshold) · residential sewer connection charge: 250 USD (plus cost of materials)

    “The owner of all houses, buildings or properties used for human occupancy, employment, recreation or other purposes, situated within the City and abutting on any street, alley or right-of-way in which there is now located or may in the future be located a public sanitary sewer of the City, is hereby required at his/her expense to install suitable toilet facilities therein and to connect all such facilities directly with the proper public sewer in accordance with the provisions of this Chapter within ninety (90) days after date of official notice to do so, provided that the public sewer is within four hundred (400) feet (30.5 meters) of the property line.”
  • Permit processPartial

    Private sewage-disposal and sewer-connection permitting inside Gallatin city limits.

    • Private sewage disposal requires a City form, written Superintendent permit, possible plans and specifications, $25 fee, and inspection before underground portions are covered.
    • Unauthorized persons may not connect to or alter a public sewer without a written Superintendent permit.
    • A complete building-permit process was not established from the opened material.

    private sewage permit and inspection fee: 25 USD (paid when application is filed)

    “No unauthorized person shall uncover, make any connections with or opening into, use, alter or disturb any public sewer or appurtenance thereof without first obtaining a written permit from the Superintendent.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Gallatin or Daviess County directly.

  • Owner-builder exemption — Owner-builders inside Gallatin city limits.
  • Building code adopted — Building-code adoption inside Gallatin city limits.
  • Inspections — Building inspections inside Gallatin city limits.
  • Certificate of occupancy — Certificates of occupancy inside Gallatin city limits.
  • Living in an RV — Occupancy of recreational vehicles on land inside Gallatin city limits.
10 more unanswered
  • Camping on your land
  • Tiny homes
  • Accessory dwellings
  • Well permit
  • Agricultural exemption
  • Subdividing land
  • Driveway access
  • Building in a floodplain
  • Short-term rentals
  • Permit fees

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Unanswered questions are usually a sign that Gallatin publishes no rule on the point, not that none exists. Daviess County’s page lists the county offices to call.

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