Horn Lake, Mississippi Building Permit Guide

Inside Horn Lake, building, electrical, plumbing and mechanical permits come from the City’s Planning Department at City Hall, and every application now goes through the City’s online permit portal. Contractors need a City of Horn Lake contractor licence ($100 a year to start), and a new house is valued at $40 per square foot before the City’s fee table is applied.

What needs a permit in Horn Lake?

The City’s 2026 application forms set out which work needs its own permit. A building permit must be approved before work begins, and the applicant asks for an inspection once the project is finished.

For permit purposes, anything built within 10 feet of a house counts as an addition to the house and uses the residential building permit form.

Who issues building permits in Horn Lake?

The Planning Department handles development review, permits and contractor and rental licensing, and its Building Inspector carries out the inspections. Billy Simco is the Interim Planning Director. Land outside the city limits is handled by DeSoto County, not by the City.

Horn Lake permit portal and forms

The Planning Forms page keeps every form for reference, but applications are now handled through the online permit portal. The forms still show what the City will ask for and how each fee is worked out. The building, trade, fence, pool and demolition forms each ask whether the parcel or the work is in Flood Zone AE; if the work is, a floodplain development permit is needed as well.

• Residential and commercial building permit applications, with a drawing of the project: a site plan for new buildings and exterior additions, interior plans for interior work.
• Residential accessory building permit for sheds, barns, detached garages, shops, gazebos and pergolas, with a drawing of the whole lot.
• Electrical, plumbing and mechanical applications, residential and commercial.
• Contractor licence application, renewed every year.
• Certificate of occupancy, demolition, fence, pool, land disturbance, driveway and water and sewer tap applications.

On a single-family house, the owner can do the work personally by signing the homeowner box on the form and accepting responsibility for it. If the Building Inspector finds the owner lacks the skills, the work stops until a contractor licensed with the City is hired.

Horn Lake permit fees

The 2026 application forms turn the project’s square footage into a valuation and then into a fee. New homes, additions, garages, carports, porches, patios and decks are valued at $40 per square foot; enclosing a porch, patio or deck at $30; finishing expandable space, other renovations, roof replacement and solar panels at $20. Commercial buildings and additions are valued at $60 per square foot and renovations or roof replacements at $40.

Worked from the residential form: a new 3,000 sq ft house is valued at $120,000, so the fee is $460 plus 20 × $3, $520, before trade permits and taps. The forms start the $50,000.01–$100,000 band at $250, although the first band already reaches $260 at $50,000, so ask the Planning Department about a job in that range. Under the building codes as the City amended them, work begun before a permit is issued is charged an extra fee of double the permit fee; under the residential code that fee is double the required permit fee up to a maximum of $5,000.

New buildings also pay water and sewer tap fees and a DeSoto County Regional Utility Authority (DCRUA) fee on the City’s tap permit: a residential water tap is $600, a 5/8- or 3/4-inch meter $255, a single-family sewer tap $900, and the DCRUA fee $500 inside the basin or $1,000 outside it.

Electrical, plumbing and mechanical permits in Horn Lake

Each trade has its own residential and commercial form, and each trade permit has a $30 minimum.

Contractors doing most work in the city need a City of Horn Lake contractor licence. To get one, a contractor submits a copy of the active certificate from the Mississippi State Board of Contractors for the trade, a $5,000 surety bond payable to the City and proof of general liability insurance. A new licence costs $100 and a renewal $50, and all licences expire on December 31.

What to submit

An accessory building application needs a drawing of the whole property showing the property lines, the house, any fence and the other accessory buildings. A demolition application needs a site plan showing what will be removed and how debris will be kept on site, with the utilities shut off and the utility companies told in advance.

How to get a Horn Lake building permit: 6 steps

Horn Lake inspections and certificates of occupancy

The Planning Clerk builds the daily list for the Building Inspector, who spends most of the day in the field, so call the clerk at 662-342-3549 to schedule. Each permit form says an inspection must be requested once the work is finished. A pool must be inspected before it is filled, and a demolition site is inspected both before and after the work.

No building may be occupied until a certificate of occupancy is issued, and that requires passing both the building inspector’s and the fire inspector’s inspections. A new certificate ($100) is needed when the property or the business changes hands or a new use is added, except that a single-family home sold to a new owner keeps its existing certificate. The Planning Department may withhold a certificate where the parcel does not comply with its site plan or a city ordinance.

Local rules that matter in Horn Lake

Building codes: the City Code (Section 8-52, as amended March 18, 2025) adopts the 2024 International Building, Residential, Fire, Existing Building, Property Maintenance, Energy Conservation, Fuel Gas, Mechanical and Plumbing Codes and the 2024 National Electrical Code, with local sprinkler thresholds in Section 8-53.

Flood Zone AE: a no-fee floodplain development permit is needed for any new building, expansion, renovation, fence, monument sign, paving, grading, digging, utility work or root-disturbing tree removal in the AE zone. Work in the regulatory floodway needs a No Rise Certificate. Buildings need an elevation certificate before, during and after construction. An improvement or repair worth 50% or more of the building’s market value makes it substantially improved or damaged, and it must then meet the City’s rule of at least 2 feet above the base flood elevation.

Accessory buildings: not in front or side yards, at least 5 feet from the rear and side lines, no more than 20% of the rear yard, at most 20 feet high and no more than half the floor area of the house, and never used as a dwelling.

Fences: up to 3 feet in a front yard (split rail or wrought iron, no chain link) and up to 6 feet in side and rear yards; barbed wire is allowed only in the AR zone.

Mississippi building code

Some work is exempt statewide: farm structures once the owner files an affidavit (Mississippi Code §17-2-7), and manufactured housing built to federal standards, certain industrial and utility facilities, buildings on non-public fairgrounds and hunting or fishing camps with an owner’s affidavit (§17-2-9). None of these exemptions reaches floodplain rules. The state minimum codes are the Mississippi Building Code and Mississippi Residential Code, the residential code drawn from the 2021 International Residential Code. How building codes apply in Mississippi

Horn Lake permit FAQs

Who issues building permits in Horn Lake?

The City of Horn Lake Planning Department at City Hall, 3101 Goodman Road West (662-393-6705), for property inside the city.

How much is a building permit for a new house in Horn Lake?

The house is valued at $40 per square foot and the fee comes from the City’s table; a 3,000 sq ft house valued at $120,000 pays $520, before trade permits and tap fees.

Do contractors need a Horn Lake licence?

Yes, for most work. The City licence needs the state certificate, a $5,000 bond and liability insurance, costs $100 new and $50 to renew, and expires each December 31.

Can I do the work on my own house?

Yes, on a single-family house you own, by signing the homeowner box on the application. The Building Inspector can require a licensed contractor if the work is not up to standard.

Do I need a permit for a fence or pool in Horn Lake?

Yes. A residential fence permit is $35, and a private pool permit is $100, with an inspection before the pool is filled.

How do I schedule an inspection?

Call the Planning Clerk at 662-342-3549.

Official Horn Lake permit resources

These are the primary sources behind this guide. Codes, fee schedules and procedures change — confirm the position for your filing date.

• Mississippi Insurance Department: Mississippi uniform building codes
• Horn Lake Planning & Development
• Horn Lake planning forms
• Horn Lake online permit portal
• Horn Lake residential building permit application (2026)
• Horn Lake commercial building permit application (2026)
• Horn Lake contractor license application
• Horn Lake certificate of occupancy application
• Horn Lake floodplain development permit application
• Horn Lake water and sewer tap permit application
• Horn Lake Code Chapter 8, Buildings (adopted codes)

Simplify Horn Lake permitting with Alliance Permitting

Alliance Permitting is a permit documentation and submission company in Mississippi. We prepare your paperwork, file it correctly and coordinate with the permitting authority through issuance. We are not a contractor and we do not perform licensed plan review or inspections; that work stays with your licensed team and the jurisdiction.

This guide is provided by Alliance Permitting for general information about Horn Lake permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.