Bolthole Index

St. Charles County, Missouri

Zoning, building permits and septic rules in New Melle, Missouri

New Melle is a city in St. Charles County, Missouri. New Melle adopts its own zoning, so inside its limits New Melle’s rules apply, not the county’s. 4 rules below are quoted from official sources and independently re-checked, most recently on October 23, 2026. Rules for unincorporated land are on the St. Charles County page.

Answers from the rulebook for New Melle

New Melle’s own rules

  • Local zoningPresent (with conditions)

    Land inside New Melle city limits: the city's own zoning ordinance (Code Chapter 405) is listed in the city's adopted code.

    • Only the eCode360 table of contents was opened; the text of Chapter 405 (section 405.010 through section 405.925) was not reachable because eCode360 section pages require login. Dimensional, use and district rules must be read from the chapter text.
    • The eCode360 index states it includes legislation with date through 10-13-2020; later amendments are not reflected.
    • Chapter 405 covers the zoning ordinance; the index also lists Chapter 400 (planning and zoning commission) and Chapter 410 (subdivision code).
    “chapter 405 zoning ordinance (section 405.010 – section 405.925)”
  • Off-grid sanitationLimited

    Privies, privy vaults, septic tanks, cesspools and other on-site sewage disposal facilities inside New Melle city.

    • Construction or maintenance of such facilities is unlawful except as provided by New Melle ordinances and Missouri statutes and regulations.
    • Section 240.020 separately bars any discharge of human sewage that causes noxious odor, surface pooling, public nuisance, or surfacing with listed contaminant levels, and a notice-and-30-day correction process applies.
    • Whether a septic permit or state approval is needed for a specific lot was not confirmed (see septic claims).
    “except as provided by the ordinances of the city of new melle and the statutes of the state of missouri and regulations thereunder, 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 hookupSewer (with conditions)

    Owners of houses or buildings inside New Melle city that abut a street, alley or right-of-way with a public sanitary or combined sewer must connect to that sewer.

    • Applies only where the public sewer is within 100 feet of the property line.
    • Connection must be made within ninety (90) days after the date of official notice.
    • Connection is made at the owner's expense and must follow the rules, regulations and requirements of public water supply district no. 2 and city ordinances.
    • Violations: fine up to $500.00 per day for each day the violation continues after notice, or imprisonment up to 90 days, or both.
    • Water connection is not addressed in this section; water-service requirements were not found in the opened text.

    distance from public sewer to property line: <= 100 feet (Connection duty applies only if the public sewer is within this distance) · connection deadline after official notice: 90 days · fine for continuing violation after notice: <= 500 USD per day (Also imprisonment up to 90 days, or both)

    “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 rules and regulations and requirements of the public water supply district no. 2 and all ordinances regulating same adopted by the city within ninety (90) days after the date of official notice to do so; provided that, such public sewer is within one hundred (100) feet of the property line.”
  • Subdividing landRegulated (with conditions)

    Land subdivision inside New Melle city limits.

    • Governed by Chapter 410 (Subdivision Code), sections 410.010 through 410.350 as listed in the city's code index; the text was not read.
    • Reflects the code index as of the date through 10-13-2020 noted on the eCode360 index.
    “chapter 410 subdivision code — rules for land subdivision (section 410.010 &ndash; section 410.350)”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask New Melle or St. Charles County directly.

  • Building permit — New construction inside New Melle city limits.
  • Owner-builder exemption — Owner-builders of homes inside New Melle city limits.
  • Building code adopted — Construction inside New Melle city limits.
  • Inspections — Inspections of construction inside New Melle city limits.
  • Certificate of occupancy — Occupancy of new buildings inside New Melle city limits.
21 more unanswered
  • Zoning districts
  • Minimum dwelling size
  • Minimum lot size
  • Setbacks
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Well permit
  • Agricultural exemption
  • Driveway access
  • Building in a floodplain
  • Short-term rentals
  • Permit fees
  • Permit process

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 New Melle publishes no rule on the point, not that none exists. St. Charles County’s page lists the county offices to call.

Off-grid gear

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

These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.

← All of St. Charles County: county rules, score and offices