Zoning, building permits and septic rules in Ladue, Missouri

Ladue’s own rules

• Building permitLimited

  Fence or deck construction inside Ladue city limits.

  • The cited form addresses fences and decks, not every category of residential construction.
  • The application must include the listed submission items, including plans, drawings, specifications, executed application, and deposit.

  “Application is hereby made to the Building Commissioner of the City of Ladue for a permit to build or construct at/on the above listed property”

• Building code adoptedAdopted (with conditions)

  Fence and deck construction submitted for a City of Ladue building permit inside city limits.

  • The form does not identify the edition or titles of the adopted codes.
  • The applicant states compliance except as otherwise noted on drawings.

  “Except as otherwise noted on the drawings, the project complies with all applicable ordinances and Building Codes adopted by the City of Ladue.”

• InspectionsLimited

  Fence and deck projects inside Ladue city limits.

  • Fence projects require a pier inspection and final inspection.
  • Deck projects require at minimum pier, footing, framing, and final inspections.
  • Additional inspections may be required when plans are not on site or inspections are cancelled without advance notice.

  fence post-hole depth: 30 inches (Verified at the required pier inspection.)

  “Required Inspections: There are two required inspections as part of your fence project. The first inspection is a pier inspection to verify 30” post holes. The second is the final inspection to verify project completion and conformity with all building codes and City ordinances. Deck projects will require at minimum a pier, footing, framing and final inspection.”

• Building in a floodplainLimited

  Fence and deck permit applications for property in the floodplain inside Ladue city limits.

  • The cited direction is limited to the fence/deck permit process and does not establish the complete floodplain-development permit standard.
  • Applicants whose property is in the floodplain must consult the Building Commissioner or City Clerk before proceeding.

  “If your property is in the flood plain, consult with the Building Commissioner or City Clerk before proceeding.”

• Permit feesPublished (with conditions)

  Fence and deck permit applications inside Ladue city limits.

  • Fees are assessed on preliminary cost estimates.
  • The total fee must conform to the total cost of the work or operation.
  • Inspection fees are additional.
  • Additional inspection fees are due at or before final inspection when applicable.

  residential permit base fee: 100 USD (Plus $5 per $1,000 estimated cost and inspection fees.) · residential permit cost component: per 5 USD per $1,000 estimated cost (Plus base fee and inspection fees.) · commercial permit base fee: 100 USD (Plus $6 per $1,000 estimated cost and inspection fees.) · commercial permit cost component: per 6 USD per $1,000 estimated cost (Plus base fee and inspection fees.)

  “Building Permit fees are assessed at the time the permit is issued based on preliminary cost estimates. Residential permits are $100 base plus $5 per $1,000 of estimated cost plus inspection fees. Commercial permits are $100 base plus $6.00 per $1,000 of estimated cost plus inspection fees.”

• Permit processPublished (with conditions)

  Fence and deck permit applications inside Ladue city limits.

  • A site plan, drawings and specifications, signed application, and $100 deposit are listed as submission requirements.
  • Applications without the required site plan are not accepted.
  • Subdivision trustee notification is required before the city accepts a fence or deck application.
  • The cited expiration terms apply unless work begins or an extension is granted.

  application deposit: 100 USD (Payable by cash or check.) · permit expiration after issuance: 3 months (Unless permitted work has begun.) · extension: <= 6 months (One extension may be granted by the Building Commissioner on written application stating why work did not begin.)

  “Permits expire three months after the date of issuance unless the permitted work has begun. One extension up to six additional months may be granted by the Building Commissioner upon written application by the applicant stating the conditions which prevented commencement of the work within the three-month period.”

Still unanswered

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

• Owner-builder exemption — Owner-built residential work inside Ladue city limits.
• Certificate of occupancy — Residential construction and occupancy inside Ladue city limits.
• Zoning districts — Zoning districts inside Ladue city limits.
• Minimum dwelling size — Single-family residential districts inside Ladue city limits.
• Minimum lot size — Single-family residential districts inside Ladue 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 Ladue 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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