Bolthole Index

Maries County, Missouri

Building permits, septic and land rules in Vienna, Missouri

Vienna, Missouri requires a city building permit from the building inspector before anyone erects, enlarges or improves a structure inside city limits1. The permit fee is $10 per permit2. Septic systems inside Vienna need a written permit from the city's inspector3, and the state health department is the county's septic authority4. We could not confirm a citywide zoning ordinance.

At a glance

Building permit
Required from the city building inspector for each building or structure1
Permit fee
$10 per building permit, paid when you apply2
Inspections
Foundation, frame, wallboard and final inspections5
Septic permit
Written permit from the city's inspector before construction3
Public sewer
Connection required where a city sewer line is within 100 feet of the property line6
Mobile homes
Board of aldermen permit required7
Subdivisions
Reviewed by the city, with flood-damage findings8
Floodplain
Extra construction standards in mapped flood-hazard areas9

Who to call

Building permits

City of Vienna Building Inspector

Building permits, permit fees and construction inspections inside Vienna city limits

Septic permits

Missouri Onsite Wastewater Treatment Program (DHSS)

State onsite wastewater (septic) construction permits for Maries County; Vienna's own sewer inspector adds a city permit inside city limits

573-751-6095

onsiteprogram@health.mo.gov

PO Box 570, Jefferson City, MO 65102-0570

Contact details are copied from each office’s official page and were checked against it on October 24, 2026.

Off-grid gear

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

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Do you need a building permit in Vienna, Missouri?

Yes. Vienna's city code says no person may erect, construct, enlarge or improve any building or structure in the city without first getting a separate building permit for each one from the building inspector110. The application is written, on a city form, and has to describe the work and the land, the intended use, the plans and specifications, and the valuation11.

The permit fee is $10 for each building permit, due when the application is submitted210. A permit lapses if work does not start within 120 days or stops for 120 days1.

This is a city rule. Land outside Vienna's city limits is unincorporated Maries County, where we found no county building permit requirement; see the Maries County page for that12.

Who issues building permits in Vienna, and how do you reach them?

The City of Vienna's building inspector issues building permits and inspects the work15. We could not confirm a published phone number or counter address for the building inspector, so call or visit Vienna City Hall and ask for the building inspector before you draw plans.

Inspections are tied to the build: no work may go past an inspection point without written approval, and framework may not be covered before the inspector signs off5. The code lists foundation, frame, wallboard and final inspections5. The inspector may also ask for a lot survey to check the work against approved plans5.

We could not confirm which building-code edition Vienna has adopted, or whether a certificate of occupancy is required, so ask the inspector.

Does Vienna, Missouri have zoning, and what about RVs, tiny homes and setbacks?

We could not confirm that Vienna has a citywide zoning ordinance, a zoning map or a district schedule. The published city code does contain rules on subdivisions, floodplain construction and mobile homes897.

On the questions buyers ask most, we found no published answer: RV occupancy, temporary camping, tiny homes, accessory dwellings, minimum dwelling size, lot size and setbacks are all unconfirmed. Unconfirmed is not the same as allowed. Ask City Hall in writing before you park an RV on a lot or order a tiny home.

Mobile homes are regulated: placing one inside city limits takes a permit from the board of aldermen, with a public hearing first7.

How do septic permits work inside Vienna?

Inside Vienna, the owner must get a written permit signed by the city's inspector before starting a private sewage disposal system3. The application is on a city form, supported by plans and specifications, and a permit and inspection fee set by the board of aldermen is due when you file3. The permit does not take effect until the inspector is satisfied with the finished installation13.

The city code does not displace the state or county health officer's additional requirements14. For Maries County, the state's Onsite Wastewater Treatment Program (DHSS) is the listed septic authority, so confirm with15 whether a state construction permit is also needed for your lot4.

A city sewer changes the picture: where a public sewer is within 100 feet of the property line, an occupied property must connect within 90 days of official notice6. When sewer later reaches a property with a private system, connection is due within 60 days and the old system must be cleaned and filled6.

Building a home in Vienna: the steps, in order

  1. Ask Vienna City Hall for the building inspector and confirm zoning, building-code and certificate-of-occupancy rules, which we could not confirm.
  2. Check whether a city sewer is within 100 feet of the lot; if so, plan to connect6.
  3. If no sewer is available, apply for the city septic permit and ask the state program about its permit34.
  4. Check the lot against Vienna's flood-hazard map; construction in a mapped flood-hazard area has extra design requirements9.
  5. File the written building permit application with plans and the $10 fee112.
  6. Schedule the foundation, frame, wallboard and final inspections5.
  7. For a driveway onto a state highway, get a MoDOT right-of-way permit first16.

What stays with Maries County and the state (and what to check before you buy)?

Septic and well rules do not stop at city limits. The state's Onsite Wastewater Treatment Program is the septic authority listed for Maries County4, and Missouri requires a construction permit before installing or repairing most onsite systems17. Missouri does not require a septic inspection for a real-estate sale, but a lender or buyer may ask for one from a licensed individual18. We found no Vienna-specific private-well permit rule.

A driveway or other work in MoDOT right-of-way needs a MoDOT permit16.

Countywide, Maries County's effective property tax rate is 0.6%19, and only 0.7% of its soils rate as not limited for a conventional septic drain field, so expect a site evaluation or an engineered system on lots without sewer20. For land outside the city, use the Maries County page.

Watch-outs

  • Vienna's published code covers mobile homes and floodplain construction79, but we could not confirm a zoning ordinance, so call City Hall before assuming anything about RVs, tiny homes, lot size or setbacks.
  • Building in a mapped flood-hazard area inside Vienna triggers added design requirements, and floodplain violations can be fined up to $100 per offense, with each day counting separately9.
  • The state's septic application fees are temporarily suspended, but Vienna's own septic permit and inspection fee is set separately by the board of aldermen43.
  • Setting up a mobile home inside city limits requires a board of aldermen permit and a public hearing, and emergency replacements get faster review7.

Sources

  1. Chapter 20 - Planning and Zoning, Vienna City Codes (Vienna), quoted and re-checked
  2. Chapter 20 - Planning and Zoning, Vienna City Codes (Vienna), quoted and re-checked
  3. Chapter 19 - Utilities, Vienna City Codes (Vienna), quoted and re-checked
  4. OWTS Construction Permit Process, quoted and re-checked
  5. Chapter 20 - Planning and Zoning, Vienna City Codes (Vienna), quoted and re-checked
  6. Chapter 19 - Utilities, Vienna City Codes (Vienna), quoted and re-checked
  7. Chapter 20 - Planning and Zoning, Vienna City Codes (Vienna), quoted and re-checked
  8. Chapter 20 - Planning and Zoning, Vienna City Codes (Vienna), quoted and re-checked
  9. Chapter 20 - Planning and Zoning, Vienna City Codes (Vienna), quoted and re-checked
  10. City of Vienna Building Inspector (meramecregion.org)
  11. Chapter 20 - Planning and Zoning, Vienna City Codes (Vienna), quoted and re-checked
  12. Maries County, Missouri - Official County Website (department directory) (2026 county census)
  13. Chapter 19 - Utilities, Vienna City Codes (Vienna), quoted and re-checked
  14. Chapter 19 - Utilities, Vienna City Codes (Vienna), quoted and re-checked
  15. Missouri Onsite Wastewater Treatment Program (DHSS) (health.mo.gov)
  16. Permits, quoted and re-checked
  17. OWTS Construction Permit Process, quoted and re-checked
  18. health.mo.gov, quoted and re-checked
  19. Effective property tax rate: Bolthole Index county data
  20. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data

Written October 24, 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 Vienna

Vienna’s own rules

  • Building permitRequired

    Erecting, constructing, enlarging, or improving any building or structure in Vienna city.

    • A separate permit is required for each building or structure.
    • The application must be written and include identification of the work and land, intended use or occupancy, plans and specifications, valuation, and signature; other information may be required by the building inspector.
    • A permit expires if work is not commenced within 120 days, or is suspended or abandoned for 120 days; a new permit may be obtained without a fee only if plans are unchanged and suspension or abandonment has not exceeded one year.
    “No person, firm or corporation shall erect, construct, enlarge, or improve any building or structure in the city, or cause the same to be done, without first obtaining a separate building permit for each such building or structure from the building inspector.”
  • InspectionsRequired

    Construction or work requiring a Vienna city building permit.

    • A lot survey may be required to verify compliance with approved plans.
    • No work may proceed beyond each inspection point without written approval.
    • Framework may not be concealed before building-inspector approval.
    • The code specifies foundation, frame, lath/wallboard, and final inspections.
    “All construction or work for which a building permit is required shall be subject to inspection by the building inspector.”
  • Manufactured homesLimited

    Mobile homes, including single mobile homes and mobile-home communities, inside Vienna city limits.

    • A board-of-aldermen permit is required before establishing, placing, maintaining, operating, permitting, or locating a mobile home or community.
    • A public hearing and newspaper notice are required before permit issuance, except an emergency-replacement application may receive an expedited review and waiver by majority city-council vote.
    • Mobile homes may be permanent dwellings only if compliant with Article V.
    • Existing mobile homes may continue at their present location even if outside an area designated for mobile-home communities or locations.
    “It shall be unlawful for any person to establish, place, maintain, operate, permit or locate any mobile home or mobile home community on any premises within the city without first securing a permit from the board of aldermen.”
  • Who permits septicLocal (with conditions)

    Private sewage-disposal systems inside Vienna city limits.

    • The city code does not interfere with additional requirements imposed by the state or county health officer.
    “After this Article has been passed and approved, the city council shall appoint a sewer inspector who shall be its authorized representative (hereinafter referred to as the city sewer inspector) to make such inspections as are necessary to properly carry out the provisions of this Chapter and shall report all violations thereof to the city clerk.”
  • Septic permitRequired

    Construction of a private sewage-disposal system inside Vienna city limits.

    • Before construction, the owner must obtain a written permit signed by the inspector.
    • The application is on a city form and must be supplemented with plans, specifications, and other information deemed necessary by the inspector.
    • A permit and inspection fee determined by the board of aldermen is due when the application is filed.
    “Before commencement of construction of a private sewage disposal system the owner shall first obtain a written permit signed by the inspector.”
  • Septic inspectionRequired

    Private sewage-disposal systems inside Vienna city limits.

    • The city sewer inspector makes inspections necessary to carry out Chapter 19.
    • The permit provision requires payment of a permit and inspection fee set by the board of aldermen.
    “A permit for a private sewage disposal system shall not become effective until the installation is completed to the satisfaction of the inspector.”
  • Off-grid sanitationLimited

    Private sewage disposal where public sanitary or combined sewer is unavailable inside Vienna city limits.

    • Private sewage disposal must comply with the city article.
    • A written city permit and inspection fee are required before construction.
    • Connection is required once public sewer becomes available under the code's availability provisions.
    “Where a public sanitary or combined sewer is not available under the provisions of Section 19-9, the building sewer shall be connected to a private sewage disposal system complying with the provisions of this Article.”
  • Mandatory utility hookupSewer (with conditions)

    Human-occupancy properties inside Vienna city limits where city sanitary sewer is available.

    • A property abutting a street, alley, or right-of-way containing a public sewer must connect within 90 days after official notice if the sewer is within 100 feet of the property line.
    • A toilet or privy within 200 feet of a dwelling or public house must be connected, except property that cannot be serviced by the sewer system.
    • When public sewer becomes available to property with private sewage disposal, connection is due within 60 days and the private system must be cleaned and filled.

    public sewer distance from property line: <= 100 feet (Applies to human-occupancy properties abutting a street, alley, or right-of-way containing city public sewer, after official notice.) · connection deadline after official notice: 90 days (Where public sewer is within 100 feet of the property line.)

    “The owner of all houses, building, 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 or combined sewer of the city, is hereby required at his expense to install suitable toilet facilities therein, and to connect such facilities directly with the proper public sewer in accordance with the provisions of this Article, within ninety (90) days after date of official notice to do so, provided that said public sewer is within one hundred (100) feet (30.5 meters) of the property line.”
  • Subdividing landRegulated (with conditions)

    Subdivision applications inside Vienna city limits.

    • The governing body must make flood-damage and drainage findings when reviewing all subdivision applications.
    • It must determine that utilities and facilities are located and constructed to minimize or eliminate flood damage.
    • The building inspector must require flood-protective design for new or replacement water and sanitary sewage systems and appropriate placement of on-site waste disposal systems.
    “The governing body of the city, in reviewing all subdivision applications, shall make findings of fact and determine if:”
  • Driveway accessLimited

    Driveways within mobile-home communities inside Vienna city limits.

    • This rule is limited to mobile-home communities; no general driveway-access rule was established.
    • Driveways and streets must abut each unit, have hard and dustless surfaces, and be illuminated at night.

    street and driveway width: >= 60 feet (Within a mobile-home community.)

    “Streets and driveways within the mobile home community shall be at least sixty feet in width, shall abut each unit within the mobile home community, shall have hard and dustless surfaces and shall be illuminated by street lighting at night.”
  • Building in a floodplainRequired

    Construction in special flood-hazard areas identified on Vienna's Official Flood Hazard Map.

    • Plans for proposed construction in a special flood-hazard area must show the area boundaries.
    • Construction must be designed and anchored against flotation, collapse, or lateral movement; use flood-resistant materials and equipment; use methods minimizing flood damage; provide drainage; and protect utilities.
    • Violating floodplain provisions is a public nuisance and can result in a fine of up to $100 per offense, with each day a separate offense.

    maximum fine: <= 100 USD (For each floodplain violation; each day the violation exists is a separate offense.)

    “The building inspector in reviewing all applications for construction in special flood hazard areas as identified on the Official Flood Hazard Map, shall require that any such proposed construction must:”
  • Permit feesPublished (with conditions)

    Building permits inside Vienna city limits.

    • The stated fee applies to each building permit and is due when the application is submitted.
    • Private sewage-disposal permit and inspection fees are separately determined by the board of aldermen.

    building permit fee: 10 USD (For each building permit; due upon submission of application.)

    “A fee in the amount of $10.00 for each building permit shall be paid to the building inspector at the time the application for building permit is submitted to the building inspector.”
  • Permit processPublished (with conditions)

    Building permits inside Vienna city limits.

    • Written application is on a form furnished for that purpose.
    • Application must identify the work, identify and locate land, state intended use or occupancy and valuation, include plans and specifications, and be signed by the permittee or authorized agent.
    • The building inspector issues the permit only when application and plans conform to the article and pertinent laws and ordinances and the fee has been paid.
    “To obtain a permit the applicant shall first file an application therefore in writing on a form furnished for that purpose.”

Still unanswered

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

  • Owner-builder exemption — Owner-built construction inside Vienna city limits.
  • Building code adopted — Construction inside Vienna city limits, Missouri.
  • Certificate of occupancy — Buildings inside Vienna city limits.
  • Local zoning — Land inside Vienna city limits, Missouri.
  • Zoning districts — Land inside Vienna city limits.
12 more unanswered
  • Minimum dwelling size
  • Minimum lot size
  • Setbacks
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Accessory dwellings
  • Well permit
  • Agricultural exemption
  • Short-term rentals

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 Vienna publishes no rule on the point, not that none exists. Maries County’s page lists the county offices to call.

← All of Maries County: county rules, score and offices