--- title: "Affton, MO Asbestos, Lead and Demolition | Advanced Environmental Services" description: "Affton, Missouri is unincorporated, so St. Louis County offices apply, and 83.2% of its homes predate 1980. See who handles asbestos, demolition and lead there." url: https://www.aes-stl.com/service-areas/affton-mo publisher: Advanced Environmental Services phone: +1-314-865-2662 quote: https://www.aes-stl.com/contact --- # Asbestos, lead and demolition work in Affton, Missouri Affton, Missouri is unincorporated, so St. Louis County offices handle its permits, and 83.2% of Affton homes were built before 1980. The biggest group, 31.0%, dates to the 1950s. Affton is about 9.5 miles, roughly 17 minutes without traffic, from the Advanced Environmental Services office at 3100 Gravois Ave. [Request a Quote](https://www.aes-stl.com/contact)[(314) 865-2662](tel:+1-314-865-2662) ![Underground storage tank exposed in an excavation during an AES tank removal](https://www.aes-stl.com/_astro/tank-removal-2025-09-30-10.27.14.Cb_y1_7s_Z12VFYq.webp) ![Commercial space sealed with plastic containment and air machines during AES mold remediation](https://www.aes-stl.com/_astro/Commercial-Mold-Remed-1.Ba4cYySF_Z9NqLo.webp) ![Building wrapped in white containment sheeting during an AES lead abatement project](https://www.aes-stl.com/_astro/127.BqgpMQY__7ReD8.webp) ## No city hall Affton is unincorporated. St. Louis County offices handle occupancy, asbestos clearance and lead help. ## A postwar neighborhood 31.0% of Affton homes date to the 1950s and another 20.5% to the 1960s. ## An $80 sale step An unincorporated single family home needs a County occupancy permit when the occupant changes. ## Old landmarks too The County's historic list names Affton High School, the Benoist House and the Sappington House. ## Affton at a glance Office to Affton About 9.5 miles, 17 minutes without traffic [router.project-osrm.org](https://router.project-osrm.org/route/v1/driving/-90.233935,38.599770;-90.3264230,38.5499118?overview=false) Affton housing units counted 9,092 [api.censusreporter.org](https://api.censusreporter.org/1.0/data/show/latest?table_ids=B25034&geo_ids=16000US2900280) Affton homes built before 1970 75.2% (6,836 homes) [api.censusreporter.org](https://api.censusreporter.org/1.0/data/show/latest?table_ids=B25034&geo_ids=16000US2900280) Affton homes built before 1980 83.2% (7,569 homes) [api.censusreporter.org](https://api.censusreporter.org/1.0/data/show/latest?table_ids=B25034&geo_ids=16000US2900280) Affton homes built in the 1950s 2,820 homes, 31.0% of all units [api.censusreporter.org](https://api.censusreporter.org/1.0/data/show/latest?table_ids=B25034&geo_ids=16000US2900280) Affton homes built in 1939 or earlier 776 [api.censusreporter.org](https://api.censusreporter.org/1.0/data/show/latest?table_ids=B25034&geo_ids=16000US2900280) Occupancy permit, unincorporated single family home Required at each occupant change [stlouiscountymo.gov](https://stlouiscountymo.gov/st-louis-county-departments/transportation-and-public-works/occupancy-permit-applications/) County National Register entries named Affton Affton High School, Benoist House, Sappington House [stlouiscountymo.gov](https://stlouiscountymo.gov/st-louis-county-departments/parks/about-us/historic-buildings-commission/st-louis-county-national-register-of-historic-places/) Home baseAreas we serveSelect an area for its page. Map data: US Census Bureau. ## Is Affton part of a city, or does the County run it? The County runs it. Affton is a Census Designated Place, which St. Louis County describes as a concentration of population in unincorporated areas. The County’s historic list also tags an Affton cemetery on Gravois Road as “uninc.” You answer to County offices, not a city hall. That changes who you call. The table shows the offices we found, and what each one covers. Task Who to call What we confirmed Asbestos notice for a regulated demolition or abatement Missouri DNR Notice at least 10 working days before crews begin Asbestos clearance before a demolition permit St. Louis County Air Pollution Control The County program clears asbestos before permits issue Occupancy permit when a home sells or rents St. Louis County Fee set by the County; see its occupancy page Free lead inspection St. Louis County Healthy Homes Needs a child under six and a recent venous blood lead test Building demolition permit St. Louis County Confirm with the County; we do not state who issues it For the demolition permit, check the [County Demolition Inspections page](https://stlouiscountymo.gov/st-louis-county-departments/public-health/environmental-services/air-pollution-control/demolition-inspections/) and call before you hire crews. Our [St. Louis County permits guide](https://www.aes-stl.com/guides/st-louis-county-asbestos-and-demolition-permits) explains each office. ## What kind of homes does Affton have? Mostly postwar houses. Census data for 2020 to 2024 counts 9,092 housing units in Affton. Of those, 83.2% were built before 1980 and 75.2% before 1970. The 1950s are the biggest group, with 2,820 homes, or 31.0%. The 1960s add 1,863 homes, or 20.5%. A smaller group is much older. 776 Affton homes date to 1939 or earlier. The County’s historic list names Affton High School on Mackenzie Road, the Louis Auguste Benoist House on Genesta Street and the Joseph Sappington House on Clearwater Drive. If your Affton house is from the 1950s or 1960s, assume nothing and test. An [asbestos survey](https://www.aes-stl.com/glossary/asbestos-survey) samples suspect materials before work starts. AES offers an [asbestos survey](https://www.aes-stl.com/asbestos-survey) and [asbestos testing](https://www.aes-stl.com/asbestos-testing). Our guide to [asbestos in older St. Louis homes](https://www.aes-stl.com/guides/asbestos-in-older-st-louis-homes) lists where it hides. ## What happens when an Affton home sells or changes tenants? The County requires an occupancy permit. St. Louis County says a minimum safety and health inspection must be done on all properties in unincorporated areas when the occupant changes. The rule began in October 2005 for rentals and July 2007 for homes for sale. The County sets the fee; check its occupancy page for the current amount. This is a safety check. The County page does not mention asbestos or lead. So a clean occupancy permit tells a buyer nothing about floor tile, pipe wrap or paint. Buyers who plan to remodel should order a survey of their own. ## Do Affton homes need lead testing? Many do. Missouri’s health department estimates that 60% of dwellings built from 1960 to 1978 contain lead-based paint. The estimate rises to 80% for 1940 to 1959 and as high as 90% for homes built before 1949. Most Affton houses fall in those years. St. Louis County’s Healthy Homes Program offers free in-home lead inspections for county residents. You need a child under six who lives in or visits the home, plus a recent venous blood lead test for that child. Read [lead-based paint](https://www.aes-stl.com/glossary/lead-based-paint), then see our guide to [lead paint in pre-1978 homes](https://www.aes-stl.com/guides/lead-paint-in-pre-1978-homes). AES lists [lead abatement](https://www.aes-stl.com/lead-abatement) as a service. ## Who regulates asbestos before a demolition in Affton? Two levels. Missouri DNR requires notice at least 10 working days before crews begin a regulated demolition or abatement. Most single-family residences are exempt from that state rule. St. Louis County Air Pollution Control also reviews asbestos before demolition permits issue. Learn the terms [NESHAP](https://www.aes-stl.com/glossary/neshap) and [asbestos-containing material](https://www.aes-stl.com/glossary/asbestos-containing-material-acm). AES holds Missouri DNR asbestos contractor registration 27-06-0640. See [asbestos abatement](https://www.aes-stl.com/asbestos-abatement), [demolition](https://www.aes-stl.com/demolition) and [interior demolition](https://www.aes-stl.com/interior-demolition). ## How do I plan a remodel or teardown in Affton? Start with the building’s year, then work through the offices in order. The asbestos notice and the demolition permit run on separate clocks, so do not wait on one to start the other. 1. **Find the build year.** Your deed or County record shows it. In Affton the 1950s are the most likely answer. 2. **Order a survey.** A certified inspector samples suspect materials, and the report sets the scope. 3. **Test paint in pre-1978 houses.** Use a licensed lead inspector or risk assessor. 4. **Call the County.** Ask which office issues your demolition permit, and file the asbestos notice when the structure is regulated. 5. **Abate first, then demolish or remodel.** Regulated material comes out before other work begins. Landmark status can change the plan. If your property is one of the County’s listed buildings, such as a National Register house or school, ask the County before you plan teardown. We did not find a rule on the pages we read, so we do not state one. Our guide to [Missouri demolition and renovation asbestos rules](https://www.aes-stl.com/guides/missouri-demolition-and-renovation-asbestos-rules) covers the thresholds that apply once work begins. ## How far is Affton from the AES office? About 9.5 miles, roughly 17 minutes without traffic, from the center of Affton to 3100 Gravois Ave. That is a free-flow estimate, so allow more at rush hour. AES lists St. Louis, St. Charles and Columbia, Missouri, as its service area, plus projects within 300 miles of St. Louis. See also [St. Louis County](https://www.aes-stl.com/service-areas/st-louis-county-mo) and [St. Louis, MO](https://www.aes-stl.com/service-areas/st-louis-mo). ## Which AES services fit Affton projects? - [Asbestos abatement](https://www.aes-stl.com/asbestos-abatement) before a remodel or teardown. - [Lead abatement](https://www.aes-stl.com/lead-abatement) in pre-1978 houses. - [Mold remediation](https://www.aes-stl.com/mold-remediation) and [mold inspection](https://www.aes-stl.com/mold-inspection) after basement leaks. - [Epoxy floor coatings](https://www.aes-stl.com/epoxy-floor-coatings) and [concrete polishing](https://www.aes-stl.com/concrete-polishing) for garages and shops. - [Hazardous material disposal](https://www.aes-stl.com/hazardous-material-disposal). ## Next step Call (314) 865-2662 or send our [quote form](https://www.aes-stl.com/contact) with your Affton address and the year the building was built. Start with the [asbestos abatement](https://www.aes-stl.com/asbestos-abatement) page to see the process. ## Frequently asked questions ### Is Affton, Missouri its own city? No. Affton is a Census Designated Place in unincorporated St. Louis County, and the County's historic list tags an Affton cemetery as unincorporated. So the County, not a city, handles permits there. Call the County to confirm the right office for your address and project. ### How old are Affton homes? Mostly postwar. Census data for 2020 to 2024 shows 83.2% of Affton homes built before 1980 and 75.2% before 1970. The 1950s alone account for 2,820 of 9,092 homes. Another 776 homes date to 1939 or earlier. Check your deed for the exact year. ### Do I need an occupancy permit to sell my Affton house? Yes, if the property is in unincorporated St. Louis County. The County requires a minimum safety and health inspection when the occupant changes. The County sets the permit fee; check its occupancy page for the current amount. Start with the County's occupancy permit page, and confirm your address is unincorporated. ### Who regulates asbestos work in Affton? Missouri DNR sets the state rule, with notice at least 10 working days before a regulated demolition or abatement. St. Louis County Air Pollution Control also clears asbestos before demolition permits. Most single-family homes are exempt from the state rule, but commercial buildings are not. ### How do I get a quote? Call (314) 865-2662 or send our quote form at /contact with your Affton address and the work you plan. Tell us the year the building was built. The AES office on Gravois Ave is about 9.5 miles away. ## Terms on this page - [Asbestos-containing material (ACM)](https://www.aes-stl.com/glossary/asbestos-containing-material-acm) - [Interior demolition](https://www.aes-stl.com/glossary/interior-demolition) - [Lead-based paint](https://www.aes-stl.com/glossary/lead-based-paint) - [Mold remediation](https://www.aes-stl.com/glossary/mold-remediation) - [Asbestos survey](https://www.aes-stl.com/glossary/asbestos-survey) - [Mold inspection](https://www.aes-stl.com/glossary/mold-inspection) - [Lead abatement](https://www.aes-stl.com/glossary/lead-abatement) - [NESHAP](https://www.aes-stl.com/glossary/neshap) ## Sources 1. [U.S. Census Bureau: ACS 2024 5-year, table B25034 (Affton CDP), housing units](https://api.censusreporter.org/1.0/data/show/latest?table_ids=B25034&geo_ids=16000US2900280) 2. [U.S. Census Bureau: ACS 2024 5-year, table B25034 (Affton CDP), 1970s back to 1939 or earlier](https://api.censusreporter.org/1.0/data/show/latest?table_ids=B25034&geo_ids=16000US2900280) 3. [OSRM route estimate: office to Affton](https://router.project-osrm.org/route/v1/driving/-90.233935,38.599770;-90.3264230,38.5499118?overview=false) 4. [St. Louis County Historic Buildings Commission: National Register list (Affton cemetery)](https://stlouiscountymo.gov/st-louis-county-departments/parks/about-us/historic-buildings-commission/st-louis-county-national-register-of-historic-places/) 5. [St. Louis County Historic Buildings Commission: National Register list (Affton High School)](https://stlouiscountymo.gov/st-louis-county-departments/parks/about-us/historic-buildings-commission/st-louis-county-national-register-of-historic-places/) 6. [St. Louis County Historic Buildings Commission: National Register list (Benoist House)](https://stlouiscountymo.gov/st-louis-county-departments/parks/about-us/historic-buildings-commission/st-louis-county-national-register-of-historic-places/) 7. [St. Louis County Historic Buildings Commission: National Register list (Sappington House)](https://stlouiscountymo.gov/st-louis-county-departments/parks/about-us/historic-buildings-commission/st-louis-county-national-register-of-historic-places/) 8. [St. Louis County Department of Planning: Community Profiles](https://stlouiscountymo.gov/st-louis-county-departments/planning/community-profiles/) 9. [St. Louis County: Occupancy Permits (why)](https://stlouiscountymo.gov/st-louis-county-departments/transportation-and-public-works/occupancy-permit-applications/) 10. [St. Louis County: Demolition Inspections](https://stlouiscountymo.gov/st-louis-county-departments/public-health/environmental-services/air-pollution-control/demolition-inspections/) 11. [Missouri DNR: Asbestos (notice)](https://dnr.mo.gov/air/business-industry/asbestos) 12. [Missouri DNR: Asbestos (exemption)](https://dnr.mo.gov/air/business-industry/asbestos) 13. [St. Louis County Healthy Homes: lead inspection FAQ](https://stlouiscountymo.gov/st-louis-county-departments/public-health/environmental-services/healthy-homes/healthy-homes-faq/2-i-would-like-my-home-tested-for-lead-may-i-request-an-environmental-lead-inspection/) 14. [Missouri DHSS: Lead Licensing (lead paint by home age)](https://health.mo.gov/business-professionals/lead-licensing) 15. [Missouri DNR: Asbestos contractor registrations](https://dnrservices.mo.gov/env/apcp/asbestos/contractors/index.php) Checked against the sources above on November 6, 2026. Rules and fees change, so check the linked page before you act. ## Request your custom environmental remediation estimate Contact us for a free environmental remediation or restoration estimate and a personalized solution to your problems. [Or call (314) 865-2662](tel:+1-314-865-2662)