Bolthole Index

DeSoto County, Mississippi

Building permits, zoning and land rules in Horn Lake, Mississippi

Horn Lake, Mississippi directs residential building-permit applications through the city’s online permit portal.1 Inside Horn Lake city limits in DeSoto County, city zoning controls permitted uses, and parked or stored camping and travel trailers cannot be occupied permanently or for more than 14 days.23 Septic-service requests go to the Mississippi Department of Health Wastewater Call Center, separately from city building applications.4

At a glance

Building applications
Residential building-permit application available; apply through the city portal1
Zoning
City zoning district and use-chart restrictions apply2
Septic
MSDH Wastewater Call Center handles service requests4
RV living
No permanent occupancy; maximum 14 days while parked or stored3
Driveway work
New residential driveways, additions and aprons require city approval before construction5
Owner-builder
State licensing exemption for an owner’s own residence does not waive local building permits6

Who to call

Building permits

Horn Lake Planning & Development

Municipal development questions and building-inspection scheduling

662-393-6705

[email protected]

3101 Goodman Road West

Building permits

Horn Lake Planning Forms and Online Permit Portal

Residential building-permit applications and municipal development application portal

Online permits →

Septic permits

Mississippi Department of Health - Wastewater Call Center (serving DeSoto County)

On-site wastewater (septic) system permits and inspection requests for DeSoto County, now handled by phone since MSDH's local county office closed

855-220-0192

Contact details are copied from each office’s official page and were checked against it on October 11, 2026.

Off-grid gear

Going off-grid in Horn Lake means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in Horn Lake, MS?

Horn Lake publishes a residential building-permit application and directs all applications to its Online Permit Portal.1 Start with Horn Lake Planning & Development for a proposed home inside city limits.7 Ask the city to identify the building-permit scope, current residential code, fees, inspection stages and occupancy approval for your project; we could not confirm those general requirements.7

Mississippi’s exemption for owners constructing or improving their own residence concerns residential-builder licensing; the exemption does not itself remove a local building-permit or inspection requirement.6 Treat owner-builder licensing and city construction approval as separate questions.6

Who handles building applications and inspections in Horn Lake?

Horn Lake Planning & Development takes development questions at City Hall, at 3101 Goodman Road West, and can be reached at 662-393-6705 or [email protected].7 Horn Lake directs application submissions to its online portal; the city’s forms page includes residential building, certificate-of-occupancy and floodplain-development applications.1

For a building inspection in Horn Lake, call the Planning Clerk at 662-342-3549 to schedule the Building Inspector.7 Ask Planning & Development which inspection must happen before the next stage of your particular project; the published scheduling instructions do not specify a complete residential inspection sequence.7

Does Horn Lake have zoning, lot-size and setback rules?

Horn Lake has municipal zoning, and uses inside city limits must satisfy the applicable district’s use-chart permissions and conditions.2 Horn Lake’s published use chart distinguishes permitted and conditional uses by district.8 Ask Horn Lake Planning & Development to identify the parcel’s district and confirm the proposed dwelling, accessory structures, lot size and setbacks before committing to a site layout; we could not confirm the district dimensional schedule.7

New driveways, driveway additions and driveway aprons in Horn Lake residential districts require a permit from the Office of Planning and Development before construction begins.5 Include access work in the city discussion rather than assuming a building application covers the driveway.5

How do septic permits and water connections work in Horn Lake?

Mississippi’s onsite-wastewater rules come from MSDH, with local inspections arranged through the appropriate health department.9 For DeSoto County addresses, the county’s official notice directs onsite-wastewater permit and inspection requests to the MSDH Wastewater Call Center at 855-220-0192 because the local MSDH office closed.4

Mississippi law requires Department approval of the sewage-treatment plan before a public water utility connects service, with construction connections subject to approval and inspection conditions.10 Horn Lake separately publishes a Water and Sewer Tap Permit Application.1 Ask the city about sewer availability and tap applications, and ask MSDH about onsite disposal where sewer is unavailable.14

Can you live in an RV or tiny home in Horn Lake?

A camping or travel trailer parked or stored anywhere within Horn Lake’s incorporated limits cannot be occupied permanently or for more than 14 days.3 That limit makes a parked travel trailer unsuitable as a permanent Horn Lake residence or a long-term place to live while building.3 In residential zoning districts, black or gray water from travel trailers must go into a receptacle or holding tank rather than onto open land.11

We could not confirm a separate tiny-home or accessory-dwelling rule; ask Horn Lake Planning & Development how the city would classify your proposed structure and use.7 City zoning permissions still apply to the proposed use.2

Building a home in Horn Lake: what should you do first?

  1. Discuss the parcel and proposed development with Horn Lake Planning & Development, and establish the applicable city zoning district and allowed use.72
  2. Resolve wastewater service: ask Horn Lake about its water and sewer tap application, or contact MSDH for onsite-wastewater services.14
  3. Submit city applications through the Horn Lake Online Permit Portal, including a residential driveway permit before covered driveway construction begins.15
  4. Arrange building inspections through the city Planning Clerk, and ask the city which occupancy approval applies before moving in.71

For land outside Horn Lake city limits, use the DeSoto County guide for the county’s unincorporated-area zoning answer.12

Watch-outs

  • Horn Lake’s 14-day travel-trailer occupancy limit applies throughout the incorporated limits while the trailer is parked or stored.3
  • In Horn Lake special or community flood-hazard areas lacking established base-flood-elevation or floodway data, new subdivision and other development proposals must include base flood elevation data.13
  • We could not confirm Horn Lake’s minimum dwelling size or district lot-size and setback schedule; ask Horn Lake Planning & Development before buying for a particular house plan.7

Sources

  1. Horn Lake Planning Forms and Online Permit Portal (hornlake.org)
  2. Code of Ordinances, Appendix A—Zoning, Article XII—Use Chart (Horn Lake), quoted and re-checked
  3. library.municode.com (Horn Lake), quoted and re-checked
  4. Mississippi Department of Health - Wastewater Call Center (serving DeSoto County) (desotocountyms.gov)
  5. Code of Ordinances, Appendix A—Zoning, Article VII.M—Off-Street Parking Within Residential Districts (Horn Lake), quoted and re-checked
  6. Mississippi Senate Journal, March 9, 2022 (Mississippi statewide rule), quoted and re-checked
  7. Horn Lake Planning & Development (hornlake.org)
  8. Code of Ordinances, Appendix A—Zoning, Article XII—Use Chart (Horn Lake), quoted and re-checked
  9. Mississippi State Department of Health Current Regulations: On-site Wastewater (Mississippi statewide rule), quoted and re-checked
  10. Mississippi State Department of Health Current Regulations: On-site Wastewater (Mississippi statewide rule), quoted and re-checked
  11. Code of Ordinances, Appendix A—Zoning, Article VII.M—Off-Street Parking Within Residential Districts (Horn Lake), quoted and re-checked
  12. Planning & Building (2026 county census)
  13. Code of Ordinances, Chapter 18, Sec. 18-67—Standards for streams without established base flood elevation and/or floodways (Horn Lake), quoted and re-checked

Written October 11, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

Answers from the rulebook for Horn Lake

Horn Lake’s own rules

  • Local zoningPresent (with conditions)

    Land inside Horn Lake city limits.

    • Uses remain subject to the applicable zoning district and its use-chart permissions or conditions.
    “Uses Permitted O C1 C3 C4 PBP M1 M2 PUD OTC COMMERCIAL USES”
  • Zoning districtsPublished (with conditions)

    Zoning districts and listed uses inside Horn Lake city limits.

    • The use chart lists district columns and identifies whether listed uses are permitted or conditional in those districts.
    “Uses Permitted O C1 C3 C4 PBP M1 M2 PUD OTC COMMERCIAL USES”
  • Living in an RVTemporary only (with conditions)

    Camping or travel trailers parked or stored anywhere inside Horn Lake's incorporated limits.

    • A camping or travel trailer may not be occupied permanently or for more than 14 days while parked or stored.

    maximum occupancy period: <= 14 days (while parked or stored)

    “A camping or travel trailer shall not be occupied permanently, over 14 days, while it is parked or stored in any area within the incorporated limits.”
  • Off-grid sanitationLimited

    Black- and gray-water disposal associated with travel trailers in residential zoning districts inside Horn Lake city limits.

    • Black or gray water may not be discharged onto open land; the cited rule instead requires a receptacle or holding tank.
    “No black or gray water shall be discharged onto open land, but rather into a receptacle or holding tank.”
  • Subdividing landLimited

    New subdivision proposals and other proposed developments in Horn Lake special flood hazard or community flood hazard areas without base-flood-elevation or floodway data.

    • The cited provision applies where base flood elevation and floodway data are unavailable under Sec. 18-8.
    • The proposal must include base flood elevation data.
    “Require that all new subdivision proposals and other proposed developments (including proposals for manufactured home parks and subdivisions), include within such proposals base flood elevation data.”
  • Driveway accessRequired

    New driveways, driveway additions, and driveway aprons in Horn Lake residential districts.

    • Permit must be obtained from the Office of Planning and Development before construction begins.
    “All new driveways, additions, or driveway aprons in residential districts require a permit from the Office of Planning and Development before construction begins.”
  • Building in a floodplainRequired

    New subdivision proposals and proposed developments in Horn Lake special flood hazard or community flood hazard areas without base-flood-elevation or floodway data.

    • The cited provision applies where base flood elevation and floodway data are unavailable under Sec. 18-8.
    • New subdivision and development proposals must include base flood elevation data.
    “Require that all new subdivision proposals and other proposed developments (including proposals for manufactured home parks and subdivisions), include within such proposals base flood elevation data.”
  • Permit processPartial

    New residential driveways, additions, or driveway aprons in residential districts inside Horn Lake city limits.

    • A permit from the Office of Planning and Development is required before construction begins.
    • The cited provision addresses driveway work, not the entire building-permit process.
    “All new driveways, additions, or driveway aprons in residential districts require a permit from the Office of Planning and Development before construction begins.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Horn Lake or DeSoto County directly.

  • Building permit — Residential building permits inside Horn Lake city limits.
  • Owner-builder exemption — Owner-builder treatment for construction inside Horn Lake city limits.
  • Building code adopted — Building-code adoption for land inside Horn Lake city limits.
  • Inspections — Residential construction inspections inside Horn Lake city limits.
  • Certificate of occupancy — Certificates of occupancy inside Horn Lake city limits.
16 more unanswered
  • Minimum dwelling size
  • Minimum lot size
  • Lot coverage
  • Building height
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Short-term rentals
  • Permit fees

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.

Unanswered questions are usually a sign that Horn Lake publishes no rule on the point, not that none exists. DeSoto County’s page lists the county offices to call.

← All of DeSoto County: county rules, score and offices