Zoning, building permits and septic rules in Farmington, Missouri

Farmington’s own rules

• Building code adoptedAdopted (with conditions)

  Building construction inside Farmington city limits

  • Adopted as the International Building Code, 2015 edition, including appendix chapters appendix b, appendix e, appendix f, appendix h, appendix i, with city amendments in section 500.020.
  • Amendment sets section 1809.5.1 frost line at thirty (30) inches; section 105.2 is amended by deleting item #2 (deleted text not quoted on the page).
  • Amendment history lists Ord. No. 15-11, 12-18-2017; no adoption effective date is stated, so effective_at is null.

  frost line depth: 30 inches

  “section 1809.5.1: the frost line of the locality shall be thirty (30) inches.”

• Local zoningPresent (with conditions)

  Land inside Farmington city limits; the city's own Chapter 405 Zoning Regulations apply there

  • Zoning is administered under the city's Chapter 405 as listed in the city code index; the zoning district map and use table were not opened.

  “chapter 405 zoning regulations (section 405.010 – section 405.550)”

• Zoning districtsPublished (with conditions)

  Residential zoning districts inside Farmington city limits

  • Article III lists R-1 through R-7 residential districts; commercial (Article IV) and industrial districts were not opened in full text.
  • The district map location and boundaries were not verified on an official page.

  “section 405.120 "r-5" manufactured and recreational residential districts.”

• Building heightDistrict specific (with conditions)

  R-1 single-family residential district inside Farmington city limits

  • Maximum building height is set in Table C at the end of Title IV, which was not opened; no height is recorded here.

  “2. height. the maximum height of buildings limited as designated by table c at the end of this title.”

• Subdividing landRegulated (with conditions)

  Land division into subdivision lots inside Farmington city limits

  • Only the chapter title is verified from the index; the chapter 410 requirements were not opened.

  “chapter 410 subdivision regulations (section 410.010 – section 410.150)”

Still unanswered

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

• Owner-builder exemption — Owner-builder permit exemption inside Farmington city limits
• Inspections — Building inspections inside Farmington city limits
• Certificate of occupancy — Certificate of occupancy for new buildings inside Farmington city limits
• Minimum dwelling size — Minimum dwelling floor area inside Farmington city limits
• Camping on your land — Temporary camping on private land inside Farmington city limits

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.

Off-grid gear

Going off-grid in Farmington 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.

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