St. Ann, MO — 2026 Building Permit Guide

On this page 6

§ 01

Permit authority

City of St. Ann Building and Zoning Department

Street address

10405 St. Charles Rock Road, St. Ann, MO 63074

Phone

(314) 427-8009

Coverage

St. Ann runs building and zoning administration locally. The city contracts with St. Louis County Public Works for residential re-occupancy permit inspections and for plan review and permitting of HVAC, plumbing, electrical, and elevator work.

Online portal

St. Ann Building and Zoning

St. Ann Building and Zoning forms and city workflow

Website

Department website

Additional resources

§ 02

When a permit is required

Permit triggers and exempt work for St. Ann

St. Ann posts a detailed public list including fence, shed, interior remodel, roof replacement, deck, porch, driveway, stairs, egress windows, dumpster or pod, pool, handrails, guardrails, foundation repair, sump pump install, exterior window and door frame size changes, solar panels, new construction, and demolition.

Note: Thin public exemption summary; St. Ann instead publishes a permit-required list and advises calling city hall if unsure.

Required documents

City permit application
Plans and supporting construction details
County trade permits for HVAC, plumbing, electrical, and elevator work

Building code: 2015 IBC, IRC, and IEBC. Trade plan review for electrical, mechanical, plumbing, and elevator work is contracted to St. Louis County.
Permit validity: Re-occupancy inspections are valid for 120 days if occupancy does not change.
Contractor requirements: All HVAC, plumbing, and electrical work must be applied for by a licensed contractor through St. Louis County.

Source: City of St. Ann Building and Zoning Department ↗

§ 03

Application process

Typical processing: Occupancy inspections are valid for 120 days so long as no one moves in or out of the property.

01

Check with St. Ann Building and Zoning for permit need and city application requirements.
02

File city permit materials for building and zoning review.
03

For HVAC, plumbing, electrical, and elevator permits, use St. Louis County through licensed contractors as directed by St. Ann.
04

For residential re-occupancy, obtain the county inspection first; once the city receives the passed inspection, finish the St. Ann occupancy permit application and fee payment at City Hall.

Typical processing time: Occupancy inspections are valid for 120 days so long as no one moves in or out of the property.

Source: City of St. Ann Building and Zoning Department ↗

§ 04

Fee schedule

St. Ann building permit fees

Fee type

Amount

Minimum permit fee

$30 (occupancy permit)

Permit fee formula

Varies by permit type; city public pages do not show a consolidated fee chart.

Reinspection fee

$30 for a new residential inspection when adding someone to an existing occupancy permit

Occupancy payments may be made by check, cash, or money order.

Fees change periodically. Confirm at the official fee schedule ↗ before budgeting.

§ 05

Required inspections

Scheduling and sequence

How to schedule

(314) 427-8009 — St. Ann Building and Zoning (phone)

Inspection hours: Monday-Friday, 8:00 a.m. to 4:00 p.m.

Typical sequence: City review, county trade permit where needed, field inspections, then occupancy issuance when required. County handles residential re-occupancy inspections and trade permits.

Source: City of St. Ann Building and Zoning Department ↗

§ 06

Frequently asked

Common questions about St. Ann permits

01 Do I need a building permit in St. Ann, MO? ▸

02 How much does a building permit cost in St. Ann, MO? ▸

Building permit fees in St. Ann, MO are set by the local building department and vary by project type and valuation. The minimum permit fee is $30 (occupancy permit). Fees are calculated as: Varies by permit type; city public pages do not show a consolidated fee chart..

03 How do I apply for a building permit in St. Ann, MO? ▸

To apply for a building permit in St. Ann, MO, follow these steps: 1. Check with St. Ann Building and Zoning for permit need and city application requirements. 2. File city permit materials for building and zoning review. 3. For HVAC, plumbing, electrical, and elevator permits, use St. Louis County through licensed contractors as directed by St. Ann. 4. For residential re-occupancy, obtain the county inspection first; once the city receives the passed inspection, finish the St. Ann occupancy permit application and fee payment at City Hall.

04 How long does it take to get a building permit in St. Ann, MO? ▸

Building permit processing times in St. Ann, MO typically run Occupancy inspections are valid for 120 days so long as no one moves in or out of the property.. Timelines can vary based on project complexity and current department workload.

05 How do I schedule a building inspection in St. Ann, MO? ▸

Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in St. Ann, MO via: (314) 427-8009 — St. Ann Building and Zoning.

last verified April 2026 source City of St. Ann Building and Zoning Department ↗ entry id permits/missouri/st-louis-county/st-ann

Report a correction

Educational reference. Permit rules and fees change — confirm current requirements directly with City of St. Ann Building and Zoning Department before applying. Jaspector is not legal advice.

City of St. Ann

Other jurisdictions in St. Louis County.