The Zoning Process and the Planning Commission

The Department of Planning Receptionist hours are 8:00 A.M. to 4:30 P.M. Documents, plans and other items may be delivered or dropped off until 5:00 P.M. On the second or the third Monday of each month, the Planning Commission holds a public hearing at 7:00 P.M. Check Current Public Hearing Notice for meeting times and agendas. The next public hearing is scheduled for October 14. See the Zoning Ordinance for regulations for Medical Marijuana in Unincorporated St. Louis County and Location Verification Form

View the current Planning Commission Executive Meeting Agenda. This is updated after the meeting to include the voting record of the Commission. The Planning Commission also may conduct an Executive Session, held after the Public Hearing. This is the agenda for the Executive Session.

The applications for zoning changes, special procedures, and other forms and checklists are available in .pdf format at the forms page.

The Land Planning Section, a division of the Department of Planning, enforces the County's Zoning Ordinance by processing and analyzing petitions for changes in zoning, special procedures, and variances to the zoning regulations. The Land Planning Section also researches and proposes ordinance amendments to ensure that the Zoning Ordinance is effective in regulating land use. Additionally, the Section conducts and coordinates plan reviews of commercial, industrial, and residential development in unincorporated St. Louis County by the St. Louis County Planning Commission

You can view a flowchart of the Change of Zoning Process here.

For more information on zoning changes, please visit our Citizen's Guide to the Zoning Process guide to the zoning process brochure.

Board of Zoning Adjustment

The Board of Zoning Adjustment (BZA) is a three-member body of citizens appointed by the County Executive, subject to confirmation by the County Council, to hear appeals from land-owners in the unincorporated area from the strict application of the regulations of the St. Louis County Zoning Ordinance. The Board was established to hear variance requests relating to yard setbacks for buildings, structures and parking areas, sign size requirements, reconstruction or alteration of non-conforming structures, and interpretations of the intent of the Zoning Ordinance.

The Land Subdivision Process

The Land Planning Section also oversees the division of land for unincorporated St. Louis County. In addition, the Section is responsible for the calculation, collection, monitoring, and management of escrow accounts for public improvements in subdivisions. For more information on the subdivision process, see the Zoning and Subdivision Information page.

The Citizen's Guide to the Subdivision Process is a quick reference for the process of subdividing land in unincorporated St. Louis County.  In addition, the Subdivision Ordinance is available on-line.

Home Day Care

St. Louis County licenses day care homes in unincorporated county.  The caregiver must live in the residence and care for no more than ten children.  For more information, see the Home Day Care Regulations page.


Department of Planning
St. Louis County Government
41 S. Central Avenue, 5th Floor
Clayton, Missouri 63105

Phone   314-615-2520
Fax  314-615-3729
[email protected]

Planning Calendar

Event List

Board of Zoning Adjustment

October 16, 2019 04:00 PM - 05:30 PM

Zoning Ordinance

The Zoning Ordinance is available on line in .pdf format at Zoning Ordinance.