Bolthole Index

Dunklin County, Missouri

Building permits, zoning and sewage rules in Kennett, Missouri

Kennett, Missouri requires building permits for construction, alterations and repairs, with limited exceptions.1 Kennett administers its own zoning inside city limits in Dunklin County.2 Sewer connection is mandatory when the city’s connection rule applies; private sewage systems also face city inspection and Missouri DHSS permitting requirements.345

At a glance

Building permits
Required for construction, alterations and repairs, with limited exceptions1
Zoning
City zoning applies inside Kennett city limits2
Sewer connection
Required after official notice when the qualifying public sewer is within 200 feet of the property line3
Private sewage systems
City inspection plus DHSS permit or confirmed exemption45
Residential lot size
R-1 minimum lot area: 7,500 square feet; subdivision rules may require 20,000 square feet6
Residential height
R-1 maximum: 35 feet and 2.5 stories, subject to other height provisions7

Who to call

Building permits

Kennett Code Enforcement and Property Maintenance

City code enforcement; contact for building requirements, zoning questions and private sewage inspections.

573-888-3005

[email protected]

200 Second St

Building permits

Kennett Building Permits & Inspections

Building permit application and inspection documents; City Hall contact.

573-888-9001

200 Cedar St.

Septic permits

Missouri DHSS Onsite Wastewater Treatment Program

DHSS-covered onsite wastewater construction permits in Dunklin County; confirm permitting authority and exemptions for a Kennett address.

573-751-6095

[email protected]

PO Box 570

Online permits →

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 Kennett means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in Kennett, MO?

Kennett requires a building permit before construction, alteration or repair of a structure inside city limits.1 Kennett’s exceptions include painting, qualifying accessory-surface work, and work costing less than $500 that does not include plumbing or electrical work.1 Commercial plumbing or electrical work, creation of a new electrical circuit, and plumbing or gas piping that changes a public-utility connection still require a permit.1 Kennett has adopted the 2021 International Building Code with a stated Group R exception; ask Code Enforcement how the city’s adopted provisions apply to the proposed house or alteration.89

Who handles building permit questions in Kennett?

Contact Kennett Code Enforcement and Property Maintenance at 573-888-3005 for city code questions; the city directs callers to option #1.9 The office lists 200 Second St and [email protected] as its contact address and email.9 Kennett’s Building Permits & Inspections page supplies an Application for Building Permit and inspection documents for accessory buildings and houses.10 Use those documents to discuss the project with the city before construction, and ask which inspections, plans and fees apply to the proposed work.101

Does Kennett have zoning, minimum lot sizes and height limits?

Kennett has its own zoning code for land inside city limits; establish the parcel’s district before selecting a house plan.2 In Kennett’s R-1 Single-Family Residential District, the chart lists a minimum lot area of 7,500 square feet, a minimum lot area per family of 6,500 square feet and a minimum lot width of 50 feet.6 The chart also requires a minimum residential lot area of 20,000 square feet when subdivision regulations require it.6 R-1 buildings have a maximum height of 35 feet and 2.5 stories, subject to other height provisions.7 Ask Code Enforcement for the parcel’s applicable setbacks and district interpretation before treating these R-1 dimensions as approval to build.92

How do sewer connections and septic permits work in Kennett?

Kennett requires qualifying properties abutting a street, alley or right-of-way containing a city public sewer to connect within 90 days after official notice, provided the sewer is within 200 feet of the property line.3 Where public sewer is unavailable under that rule, Kennett requires a compliant private sewage disposal system.3 DHSS lists itself as Dunklin County’s onsite wastewater permitting authority, and work must wait for a permit or confirmed exemption.5 Kennett separately requires final inspection by the Code Enforcement Officer before underground portions are covered; the city code specifies inspection within 48 hours of notice.4 Arrange both the state approval and city inspection before installation.54

Can you live in an RV or tiny home in Kennett?

We could not confirm Kennett’s rules for RV occupancy, temporary camping, tiny-home occupancy or manufactured-home placement; ask Kennett Code Enforcement about the specific parcel and proposed use.9 Kennett’s zoning and building permit requirements make the parcel’s district and construction proposal relevant to that conversation.21 We also could not confirm an owner-builder exemption or minimum dwelling floor area; ask the same office before committing to a small-house plan.9 Kennett prohibits sewage-disposal facilities outside the authorizations in its sewer chapter, so an alternative dwelling still needs a lawful sewage arrangement.11

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

Start with Kennett Code Enforcement: identify the zoning district, describe the intended dwelling and ask for the applicable lot dimensions and setbacks.92 Next, establish whether Kennett’s public sewer connection requirement applies; if private sewage is necessary, obtain DHSS approval or a confirmed exemption and arrange city inspection.354 Obtain the city building permit before covered construction begins.1 Missouri requires a permit for floodplain development; ask the city which community floodplain administrator reviews the parcel.12 For land outside Kennett city limits, use the Dunklin County guide for the county’s separate building and zoning answers.2

Watch-outs

  • Kennett’s qualifying sewer connection requirement can rule out choosing septic simply to avoid a public sewer connection.3
  • A Kennett private sewage permit does not become effective until the installation satisfies the Code Enforcement Officer, and final inspection must occur before underground portions are covered.4
  • Missouri DHSS temporarily suspended onsite sewage application fees effective August 28, 2026; ask DHSS whether the suspension still applies when you submit.13
  • We could not confirm Kennett’s certificate-of-occupancy requirements; ask Code Enforcement what must be completed before moving in.9

Sources

  1. Article III: Building Permits (Kennett), quoted and re-checked
  2. City of Kennett, MO Code of Ordinances (Kennett), quoted and re-checked
  3. Chapter 710: Public and Private Sewers (Kennett), quoted and re-checked
  4. Chapter 710: Public and Private Sewers (Kennett), quoted and re-checked
  5. OWTS Construction Permit Process, quoted and re-checked
  6. Article XI: Height, Area And Bulk Requirements (Kennett), quoted and re-checked
  7. Article XI: Height, Area And Bulk Requirements (Kennett), quoted and re-checked
  8. Article I: General Provisions (Kennett), quoted and re-checked
  9. Kennett Code Enforcement and Property Maintenance (cityofkennettmo.com)
  10. Kennett Building Permits & Inspections (cityofkennettmo.com)
  11. Chapter 710: Public and Private Sewers (Kennett), quoted and re-checked
  12. Floodplain Forms (Missouri statewide rule), quoted and re-checked
  13. OWTS Construction Permit Process (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 Kennett

Kennett’s own rules

  • Building permitRequired

    Construction, alteration, or repair of structures inside Kennett city limits.

    • Exceptions include painting; accessory surfaces that do not rise above general grade or alter public street surfaces or curbing; and non-plumbing/non-electrical work costing less than $500.
    • Permits remain required for commercial plumbing or electrical work, creation of a new electrical circuit, and plumbing or gas piping changing a public-utility connection.

    minor work cost threshold: < 500 USD (Does not include plumbing or electrical work.)

    “No person, firm, corporation or partnership shall perform any construction, alterations or repairs to any structure without first having obtained a building permit therefor, except as hereinafter provided.”
  • Building code adoptedAdopted

    Building construction inside Kennett city limits.

    • The adopted document is the 2021 International Building Code.
    • The code is adopted subject to the stated provisions and exception for Section 903.2.8 Group R.

    code edition: 2021 International Building Code (Exception: Section 903.2.8 Group R thereof.)

    “Subject to the provisions hereinafter set forth, a certain document, a copy of which is on file in the office of the City Clerk of Kennett, Missouri, being marked as the 2021 International Building Code, as published by the International Code Council, be and is hereby adopted as the building code of the City of Kennett, Missouri, with the exceptions set forth herein, and each and all of the regulations, provisions, penalties, conditions and terms of the 2021 International Building Code, are hereby referred to, adopted and made a part hereof, as if fully set out in this Article.”
  • Local zoningPresent

    Land inside Kennett city limits; the City publishes and administers Chapter 400, Zoning Code.

    “Chapter 400 Zoning Code (Section 400.010 – Section 400.1040)”
  • Septic inspectionRequired

    Private sewage disposal systems inside Kennett city limits.

    • The Code Enforcement Officer may inspect at any construction stage.
    • Applicant must notify the officer for final inspection before underground portions are covered.
    • Inspection must be made within 48 hours of notice.

    final inspection response time: 48 hours

    “A permit for a private sewage disposal system shall not become effective until the installation is completed to the satisfaction of the Code Enforcement Officer. He/she shall be allowed to inspect the work at any stage of construction and, in any event, the applicant for the permit shall notify the Code Enforcement Officer when the work is ready for final inspection, and before any underground portions are covered. The inspection shall be made within forty-eight (48) hours of the receipt of notice by the Code Enforcement Officer.”
  • Off-grid sanitationProhibited

    Privies, privy vaults, septic tanks, cesspools, or other sewage-disposal facilities inside Kennett city limits when not authorized under Chapter 710.

    • The prohibition is subject to the exceptions provided elsewhere in Chapter 710.
    • Private sewage disposal is authorized where public sewer is unavailable and the Chapter 710 permit and inspection requirements are met.
    “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 sewage.”
  • Mandatory utility hookupConditional

    Properties inside Kennett city limits abutting a street, alley, or right-of-way containing or potentially containing a City public sanitary or combined sewer.

    • Connection is required within 90 days after official notice.
    • The public sewer must be within 200 feet of the property line.
    • Where public sewer is unavailable under the rule, a private sewage disposal system complying with Chapter 710 is required.
    • The cited provision directly establishes sewer connection; it does not establish a comparable mandatory public-water connection.

    connection deadline: 90 days (After official notice.) · maximum sewer distance: <= 200 feet (Measured from property line.)

    “The owner of all houses, buildings, or properties used for human employment, recreation, or other purposes, situated within the City of Kennett 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 of Kennett, is hereby required at his/her 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 Chapter, within ninety (90) days after date of official notice to do so, provided that said public sewer is within two hundred (200) feet [sixty-one (61.0) meters] of the property line.”

Rules another office applies inside Kennett

Kennett does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

  • Minimum lot sizeSpecified

    R-1 Single-Family Residential District inside Kennett city limits.

    • The chart also states that a zoning district allowing residences will have a minimum residential lot area of 20,000 square feet when required by subdivision regulations.
    • The chart separately lists minimum lot area per family of 6,500 square feet and minimum lot area of 7,500 square feet.

    minimum lot area per family: 6500 square feet · minimum lot area: 7500 square feet · minimum lot width: 50 feet · subdivision-triggered minimum residential lot area: 20000 square feet (When required by subdivision regulations.)

    “Minimum Lot Area Per Family in Square Feet | 6,500 | 1 F:6,000 2 F:3,000 each 3+F:2,000 each Minimum Lot Area in Square Feet | 7,500 | 6,000 Minimum Width of Lot in Feet | 50 | 50 F | = | Family DU | = | Dwelling Units Any zoning district that allows the construction of residences will have a minimum residential lot area of twenty thousand (20,000) square feet when required by the subdivision regulations.”
  • Building heightSpecified

    R-1 Single-Family Residential District inside Kennett city limits.

    • The chart also specifies a maximum of 2 1/2 stories for R-1.
    • Other Chapter 400 height provisions may apply.

    maximum building height: 35 feet · maximum stories: 2.5 stories

    “Maximum Height | Feet | 35 | 45 | 35 | 45 | 45 | 125 Stories | 2 1/2 | 3 | 2 1/2 | 3 | 3 | —”

Still unanswered

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

  • Owner-builder exemption — Owner-builders performing construction inside Kennett city limits.
  • Certificate of occupancy — Occupancy of buildings inside Kennett city limits.
  • Minimum dwelling size — Residential dwellings inside Kennett city limits.
  • Lot coverage — Lot coverage inside Kennett city limits.
  • Living in an RV — RV occupancy on private land inside Kennett city limits.
8 more unanswered
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Well permit
  • Agricultural exemption
  • Driveway access
  • 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 Kennett publishes no rule on the point, not that none exists. Dunklin County’s page lists the county offices to call.

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