Zoning, building permits and septic rules in Village of Westwood, Missouri

Rules another office applies inside Village of Westwood

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

• Owner-builder exemptionConditional

  An owner installing an onsite wastewater treatment system inside Westwood village, where Missouri onsite-wastewater rules apply.

  • Homeowners may install their own system only in some instances.
  • The owner must check with the local permitting authority.
  • A construction permit may be required.

  “In some instances, homeowners may install their own system. However, you must check with the local permitting authority. Additionally, a construction permit may be required.”

• Septic permitRequired

  Installation or repair of an onsite wastewater treatment system inside Westwood village, where state onsite-wastewater requirements apply.

  • A residential property of less than three acres requires a construction permit.
  • The acreage exemption does not apply in some counties; the county authority must be checked.
  • All other onsite systems serving non-residential structures require a permit regardless of property size.

  residential property size requiring permit: < 3 acres (This exemption does not apply in some counties; check with the county authority.)

  “A construction permit is required to install or repair an onsite system on any residential property less than three acres. (This exemption does not apply in some counties; check with the county authority.) Regardless of the size of the property, a permit is necessary for all other onsite systems that serve non-residential structures.”

• Septic inspectionNot required

  Onsite wastewater system inspection or evaluation before a real-estate transaction inside Westwood village under state law.

  • A lender or buyer may request an inspection or evaluation, which must then be conducted by a licensed individual.
  • A county may impose a requirement for every real-estate transaction; the local permitting authority must be checked.

  “No. However, if a lender or buyer requests an inspection/evaluation, it must be conducted by a licensed individual. Some counties may require an onsite system inspection/evaluation for every real estate transaction. Check with the local permitting authority.”

• Subdividing landRegulated (with conditions)

  A subdivision, mobile-home park, or campground inside Westwood village where use of an onsite wastewater treatment system is planned.

  • The condition applies only where use of an OWTS is planned.
  • Developers and owners in unapproved developments should contact DNR about residential-housing-unit requirements.

  “DNR must approve subdivisions, mobile home parks and campgrounds if the use of OWTS is planned. Developers as well as property owners in unapproved developments should contact DNR regarding their residential housing unit requirements.”

Still unanswered

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

• Building permit — Residential construction inside Westwood village limits.
• Building code adopted — Building construction inside Westwood village limits.
• Inspections — Building work inside Westwood village limits.
• Certificate of occupancy — Occupancy of buildings inside Westwood village limits.
• Local zoning — Land inside Westwood village 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.