Bolthole Index

Madison County, Alabama

Building permits, zoning and septic rules in Huntsville, Alabama

Inside Huntsville city limits, the city's Inspection Department issues building permits for construction valued above $25012. The city also runs zoning, and Zoning Administration is usually the first stop before a building permit3. Septic permits for addresses without public sewer come from the Madison County Health Department, not the city45.

At a glance

Building permit
Required inside city limits for construction valued above $250, except painting, wallpapering, flooring or fencing1
Who issues it
City of Huntsville Inspection Department26
Zoning
City zoning districts; Zoning Administration reviews most permit applications first37
Septic
Madison County Health Department permit if not connected to public sewer84
Certificate of occupancy
Required before a tenant occupies a covered building9
Owner-builder
Alabama licensing exemption for owners supervising their own one- or two-family home; city permits still apply101
Short-term rentals
Generally not permitted in most residential districts11
RV and tiny-home living
Not confirmed; ask Zoning Administration3

Who to call

Building permits

City of Huntsville Inspection Department

Building permits, plan review submittals, inspections and certificates of occupancy inside Huntsville city limits

256-427-5331

305 Fountain Circle, Huntsville, AL 35801

Zoning

City of Huntsville Zoning Administration

Zoning verification and approval before most building permits inside Huntsville city limits

256-427-5100

Septic permits

Madison County Health Department Environmental Services

Onsite sewage disposal (septic) permits for Madison County addresses not on public sewer, including addresses inside Huntsville

256-533-8726

301 Max Luther Drive NW, Huntsville, Alabama 35811

Contact details are copied from each office’s official page and were checked against it on October 9, 2026.

Off-grid gear

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

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Do you need a building permit in Huntsville, Alabama?

Yes. The City of Huntsville requires a building permit for any building construction valued above $250 inside city limits, with exceptions for painting, wallpapering, flooring and fencing1. The city enforces the adopted building codes, and its floodplain page says it uses the 2018 International Building Code12. New construction, renovations and additions go through staged inspections that include footing, framing, plumbing and final, plus mechanical, electrical and gas inspections where the work involves them13. Mechanical, electrical, plumbing and gas work can each add inspections to the same project13. A building that needs a Certificate of Occupancy cannot be occupied by a tenant until the city issues one9.

Who issues building permits in Huntsville, and how do you reach them?

The City of Huntsville Inspection Department issues building permits inside city limits; reach it at 256-427-5331 or at 305 Fountain Circle, Huntsville, AL 358012. Commercial and residential projects that need plan approval must be submitted online through ePlans Review2. Residential permits may also be submitted online, and approved permits are picked up in person6. Projects in a flood hazard area must be submitted in person and need a flood-development permit before other permit approval6. An address outside the city limits is under Madison County rather than this page; see our Madison County guide.

Does Huntsville have zoning, and what does it allow?

Yes. Huntsville sets its own zoning, and Zoning Administration is the first step in processing most building permit applications3. Even a residential permit that needs no plan review may still need Zoning Administration approval; call 256-427-5100 to find out3. Rules differ by district. In the Residence 1 district the minimum lot is 15,000 square feet, buildings may cover up to 35 percent of the lot and height tops out at 35 feet71415. Residence 1-A requires 12,000 square feet with the same 35 percent coverage1617. Residence 1-B allows lots of 7,500 square feet and up to 40 percent coverage1819. Exceptions in the zoning ordinance may apply, so confirm your parcel's district before you design7.

How do septic permits work inside Huntsville?

Septic permits are a county matter, not a city one. Alabama law requires homeowners and businesses not connected to a public sanitary sewer to get a permit from the local health department, which here is the Madison County Health Department84. Call its Onsite Sewage Disposal line at 256-533-87265. Check before you buy whether your parcel is connected to public sewer. Countywide, only about 37 percent of soils are rated without severe limits for a conventional drain field, so a parcel that needs septic should get a site evaluation early20. We could not confirm a rule for private wells inside city limits; ask the Madison County Health Department before drilling5.

Can you live in an RV or tiny home in Huntsville?

We could not confirm a Huntsville rule that specifically allows or bars tiny-home occupancy, and the city's zoning pages we reviewed did not state an RV-living rule, so ask Zoning Administration at 256-427-5100 before you buy or park anything3. Short-term rentals have a clear answer: they are generally not permitted in most residential zoning districts, need a city business license, and are treated like motels for zoning purposes11. Allowed primary-use districts include Residence 2-B, C-3, C-4 and C-5, so confirm the district first11.

Building a home in Huntsville: the steps, in order

  1. Call Zoning Administration at 256-427-5100 to confirm the parcel's district and whether approval is needed3.
  2. Check the district's minimum lot area, lot coverage and height limits before you finalize plans71415.
  3. If the lot is in a flood hazard area, plan for a floodplain development permit and for elevating a new home one foot above base flood level21.
  4. If the parcel is not on public sewer, get a septic permit from the Madison County Health Department85.
  5. Submit plans through ePlans Review if they need plan approval, then apply for the building permit with the Inspection Department26.
  6. Schedule footing, framing, plumbing and final inspections as work proceeds13.
  7. If you are splitting land, meet Planning Division staff first; the subdivision process is estimated at about 120 days22.

What stays with Madison County, and what to check before you buy in Huntsville?

Septic permits stay with the Madison County Health Department for every address in the county, city or not4. Alabama also lets an owner act as their own contractor on a one- or two-family home they will occupy, but only by providing all material supervision themselves and not offering the home for sale, and city building permits still apply101. Building in a floodplain requires a permit, and a substantial improvement above 50 percent of the building's value is treated like a new building21. A driveway onto a state highway needs an ALDOT permit using form BM-11123. Madison County's effective property tax rate is about 0.4 percent, with a median annual bill near $1,0812425.

Watch-outs

  • Huntsville city rules stop at the city limits: an address outside them falls under Madison County's building and zoning offices instead, so confirm which side of the line the parcel is on with Zoning Administration3.
  • Short-term rentals are generally not permitted in most residential zoning districts, so do not buy a house for that use without checking the district11.
  • We could not confirm rules for accessory dwellings, tiny homes, minimum dwelling size or private wells inside city limits; ask Zoning Administration at 256-427-51003.

Sources

  1. huntsvilleal.gov (Huntsville), quoted and re-checked
  2. City of Huntsville Inspection Department (huntsvilleal.gov)
  3. City of Huntsville Zoning Administration (huntsvilleal.gov)
  4. Environmental Services | Alabama Department of Public Health, quoted and re-checked
  5. Madison County Health Department Environmental Services (alabamapublichealth.gov)
  6. Building License & Permits (Huntsville), quoted and re-checked
  7. Article 10, Section 10.2 - Density controls (Huntsville), quoted and re-checked
  8. Environmental Services | Alabama Department of Public Health, quoted and re-checked
  9. Schedule an Inspection (Huntsville), quoted and re-checked
  10. Exemptions (Alabama statewide rule), quoted and re-checked
  11. Short Term Rentals - City of Huntsville (Huntsville), quoted and re-checked
  12. Inspection Department - City of Huntsville (Huntsville), quoted and re-checked
  13. Schedule an Inspection (Huntsville), quoted and re-checked
  14. Article 10, Section 10.2 - Density controls (Huntsville), quoted and re-checked
  15. Article 10, Section 10.2 - Density controls (Huntsville), quoted and re-checked
  16. Article 11, Section 11.2 - Density controls (Huntsville), quoted and re-checked
  17. Article 11, Section 11.2 - Density controls (Huntsville), quoted and re-checked
  18. Article 12, Section 12.2 - Density controls (Huntsville), quoted and re-checked
  19. Article 12, Section 12.2 - Density controls (Huntsville), quoted and re-checked
  20. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  21. Protect Yourself from Flooding - City of Huntsville (Huntsville), quoted and re-checked
  22. Subdivisions - City of Huntsville (Huntsville), quoted and re-checked
  23. ALDOT Permit Manual (Alabama statewide rule), quoted and re-checked
  24. Effective property tax rate: Bolthole Index county data
  25. Median property tax bill: Bolthole Index county data

Written October 9, 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 Huntsville

Huntsville’s own rules

  • Building permitRequired

    Building construction valued greater than $250 inside Huntsville city limits.

    • Exception for painting, wallpapering, flooring, or fencing.
    • Residential projects not requiring plan review may still need Zoning Administration approval.

    construction value threshold: > 250 USD (painting, wallpapering, flooring or fencing)

    “Building Permit- permits that are issued by the City of Huntsville Building Inspection Department and required for any building construction valued greater than $250 within Huntsville city limits, except for painting, wallpapering, flooring or fencing.”
  • Building code adoptedAdopted

    Building construction inside Huntsville city limits.

    • The city's floodplain page states that the city uses the 2018 Version of the International Building Code.

    building code edition: 2018 International Building Code

    “Our goal is to provide protection for the health, safety and welfare of the general public in relation to the use and occupancy of structures by enforcement of adopted Building Codes and to protect the general public from abuse by unlicensed Contractors and sub-contractors by enforcement of Contractor Licensing Laws.”
  • InspectionsRequired

    New construction, renovations, additions, and applicable trade work inside Huntsville city limits.

    • Mechanical, electrical, plumbing, and gas inspections are required if applicable.
    • Footing, framing, plumbing, and final inspections are among the listed stages.
    “REQUIRED FOR NEW CONSTRUCTION, RENOVATIONS & ADDITIONS Footing Inspections: Inspections are required for setbacks, footing depth and widths, and steel rebar.”
  • Certificate of occupancyRequired

    Tenant occupancy of buildings requiring a City of Huntsville certificate of occupancy.

    • The building is not to be occupied by the tenant until a Certificate of Occupancy has been issued.
    • Engineering and subcontractor-list holds must be released before issuance.
    “The building is NOT to be occupied by the tenant until a Certificate of Occupancy has been issued.”
  • Minimum lot sizeSpecified

    Residence 1 (R-1) district.

    • Article 73 exceptions may apply.

    minimum lot area: >= 15000 square feet (except as provided in article 73)

    “10.2.1. Minimum required lot area: 15,000 square feet”
    2 more reviewed findings on this topic
  • Lot coverageSpecified

    Residence 1 (R-1) district.

    • Article 73 exceptions may apply.

    maximum total building area: <= 35 percent of total lot area (except as provided in article 73)

    “10.2.7. Maximum total building area: 35 percent of total lot area”
    2 more reviewed findings on this topic
  • Building heightSpecified

    Residence 1 (R-1) district.

    • Maximum stories is 2 1/2.
    • Article 73 exceptions may apply.

    maximum height: <= 35 feet (except as provided in article 73)

    “10.2.8. Maximum stories: 2½ 10.2.9. Maximum height: 35 feet”
    2 more reviewed findings on this topic
  • Subdividing landRegulated (with conditions)

    Major subdivisions, minor subdivisions, family land conveyances, and apartment sites inside Huntsville city limits.

    • Applicants must meet with Planning Division staff.
    • A subdivision application and fee are required.
    • The process is estimated at about 120 days absent challenges or obstacles.

    estimated process duration: 120 days (provided there are no challenges or obstacles)

    “The local subdivision regulations address the procedures necessary for developing major subdivisions and minor subdivisions, family land conveyances, and for developing apartment sites.”
  • Building in a floodplainRequired

    New buildings and substantial improvements in Huntsville floodplains.

    • A floodplain development permit is required.
    • New residential buildings must be elevated one foot above base flood level.
    • Substantial improvements exceeding 50 percent of the existing building value are treated as new buildings.
    • Floodway and flood hazard district restrictions also apply.

    substantial improvement threshold: > 50 percent of existing building value (for additions, only the addition must be protected)

    “A permit is needed to ensure that such projects do not cause problems on other properties.”
  • Short-term rentalsLimited

    Short-term rentals inside Huntsville city limits.

    • A City of Huntsville business license is required.
    • The property must be in an approved zoning district and receive Zoning Administration verification and approval.
    • Short-term rentals are generally not permitted in most residential zoning districts.
    • Allowed primary-use districts include Residence 2-B, C-3, C-4, C-5, Light Industry, Heavy Industry, Airport Industrial Park, and Research Park Commercial.
    • Special-exception districts include C-2, C-6, Research Park Applications, Research Park Applications 2, Research Park 2, and Airport Commercial.
    • Stays are under six months, 179 days or less.
    • Lodging tax is 9 percent plus a $2 per room/night surcharge.

    maximum stay: <= 179 days (short-term rental definition) · lodging tax: 9 percent (plus $2 per room/night surcharge)

    “Generally, short term rentals are not permitted in most residential zoning districts. They are treated as motels under the City’s zoning logs.”
  • Permit processPublished (with conditions)

    Residential and commercial building-permit applications inside Huntsville city limits.

    • Commercial projects use ePlans Review and require plans/specifications, application, and other department reviews as applicable.
    • Residential permits may be submitted online; approved permits are picked up in person.
    • Flood-hazard-area projects must be submitted in person and require a flood-development permit before other permit approval.
    “Building permits may be submitted online through ePlans Review . All plan sheets and documents submitted online must be in a PDF format. Once the permit is processed and approved, it must be picked up in person.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Huntsville or Madison County directly.

  • Minimum dwelling size — Residential dwellings inside Huntsville city limits.
  • Tiny homes — Tiny-home occupancy inside Huntsville city limits.
  • Accessory dwellings — Accessory dwelling units inside Huntsville city limits.
  • Well permit — Private wells inside Huntsville city limits.
  • Agricultural exemption — Agricultural buildings and uses inside Huntsville city limits.

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 Huntsville publishes no rule on the point, not that none exists. Madison County’s page lists the county offices to call.

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