Bolthole Index

St. James Parish, Louisiana

Building permits, zoning and land rules in St. James Parish, Louisiana

53Index Score / 100
#51 of 64 in Louisiana

St. James Parish, Louisiana requires a permit before construction of a new home or other new building, and for residential renovations and additions1. The parish administers land-use regulation countywide, while individual sewerage systems require a two-stage state permit23. Start with the parish Planning & Permitting Office, then contact the St. James Parish Health Unit if the parcel needs onsite sewage disposal45.

At a glance

Building permit
Required for new homes, new buildings, mobile-home moves, residential renovations and additions1
Zoning
Yes; parish land-use regulation applies countywide2
Septic permit
A two-stage state permit is required for an individual sewerage system36
Owner-builder
A licensing exemption is available for a qualifying personal residence, but an affidavit and permit are still required7
RV or tiny-home living
Private-land occupancy rules are not confirmed; ask Planning & Permitting before purchase or placement84
Residential setbacks
New-home permit guidance lists 20 ft front, 15 ft rear, and 5 ft and 10 ft side setbacks9
Private well
Use a licensed well driller; domestic wells follow state post-installation notification rules10
Conventional septic soils
0% of mapped soils avoid severe drain-field limitations11

Who to call

Building permits

St. James Parish Planning & Permitting Office

Building permits, land-use applications, code enforcement, development information and permit-fee questions

225-562-2500

permitting@stjamesla.com

5800 Highway 44, 3rd Floor of the Courthouse, Convent, LA 70723

Online permits →

Floodplain permits

St. James Parish Coastal Zone and Floodplain Management

Floodplain management, flood-map questions and property flood-history inquiries

225-562-2500

coastalzone@stjamesla.com

5800 Highway 44, 3rd Floor of the Courthouse, Convent, LA 70723

Septic permits

Louisiana Department of Health — St. James Parish Health Unit

Local contact for Louisiana's onsite wastewater permitting and health-unit sanitation services

225.265.2181

29170 Health Unit Street, Vacherie, LA 70090

Contact details are copied from each office’s official page and were checked against it on October 5, 2026.

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Do you need a building permit in St. James Parish, Louisiana?

Yes. St. James Parish requires a permit before construction of a new home or other new building, before moving a new mobile home within the parish, and for residential renovations or additions1. Commercial construction and renovation also require a permit, with construction drawings, State Fire Marshal approval and completed applications required of commercial applicants12. Louisiana's State Uniform Construction Code governs regulated construction, including new construction, reconstruction, qualifying additions and extensive alterations13. Regulated commercial and residential structures require code inspections by an enforcement officer or certified third-party provider14. Where a certificate of occupancy is issued, parish inspection for state-code compliance comes first; the source does not establish that every building needs that certificate15.

Who issues building permits in St. James Parish, and how do you apply?

The St. James Parish Planning & Permitting Office handles construction permits and provides information on drainage, public utilities, development requirements and property elevations4. Call 225-562-2500 or email permitting@stjamesla.com; applications may be downloaded, collected from the Planning/Permitting Office or Courthouse Annex, or filed through MyGovernmentOnline416. Ask the office for the current fee because published materials say fees are due with plan submission but do not give amounts17. For a qualifying owner-builder project, file the exemption affidavit with the permit application; the licensing exemption generally covers no more than 1 personal residence per year and does not waive health or life-safety requirements7.

Does St. James Parish have zoning?

Yes. St. James Parish administers land-use regulation countywide through its Land Use Ordinance and Parish Council process, so a rural parcel should not be treated as unrestricted2. Published land-use materials include designated areas where a use not listed as allowable requires review, and incorporated municipalities may have separate rules1819. For new residential construction, parish permit guidance lists a 20-foot front setback, a 15-foot rear setback, and side setbacks of 5 feet and 10 feet; accessory construction and mobile-home placement have separate standards9. We could not confirm a general minimum dwelling size, minimum lot size, lot-coverage cap or building-height limit, so ask Planning & Permitting for parcel-specific standards4.

How do septic permits work in St. James Parish?

Louisiana regulates onsite sewage through the state health officer and Department of Health, with the St. James Parish Health Unit serving as the local contact65. Individual sewerage systems use a two-stage process: temporary installation authorization followed by a final permit, and the initial review considers sewer availability, the site, soil, drainage and lot conditions3. Final verification occurs through a state-health representative's onsite inspection, an installer certification, or both; the installer must also notify the parish health unit before installation20. USDA soil mapping rates 0% of parish soils as free of severe limitations for a conventional drain field, so arrange the health review before choosing a house site or assuming a conventional system will work11.

Can you live in an RV or tiny home on land in St. James Parish?

We could not confirm a parish rule that allows or prohibits long-term RV occupancy on private land in St. James Parish, and Louisiana's public-property camping rule does not answer the private-land question21. We also could not confirm a tiny-home occupancy rule or general minimum dwelling size, so ask Planning & Permitting to review the parcel's land-use designation and proposed unit before purchase or placement24. Moving a new mobile home within St. James Parish requires a permit, but that permit trigger alone does not establish where occupancy is allowed1. Any occupied unit using an individual sewerage system must complete the state's two-stage permit process3.

How do you build a home in St. James Parish?

  1. Ask Planning & Permitting to confirm the parcel's land-use designation, setbacks, flood status, utilities and application requirements294.
  2. If the site needs onsite sewage, contact the St. James Parish Health Unit for temporary installation authorization before work begins53.
  3. Submit the residential building-permit application through MyGovernmentOnline or Planning & Permitting before construction begins221.
  4. File an owner-builder affidavit if you qualify for the personal-residence contractor-licensing exemption7.
  5. Pay any required water or gas deposit and connection fee at permitting when requesting those services23.
  6. Complete required building-code inspections and final onsite-sewage verification; ask the parish whether the project requires a certificate of occupancy142015.

What should you check before buying land in St. James Parish?

Check land-use designation, setbacks, flood status, utility availability and legal access before closing, using Planning & Permitting for development questions and Floodplain Management for flood information2424. Any development in a floodplain requires a local permit, and construction in a special flood hazard area or floodplain requires an elevation certificate25. If a tract will be divided, the Planning Commission reviews subdivision plats in unincorporated St. James Parish; proposals involving parish-dedicated streets, infrastructure or drainage also go to the Parish Council for approval26. Conventional septic feasibility deserves early attention because 0% of mapped parish soils avoid severe drain-field limitations11. For budgeting, the effective property-tax rate is about 0.5%, the median annual property-tax bill is about $1,043, and typical annual home insurance is about $2,879272829.

Watch-outs

  • A Louisiana owner-builder exemption waives contractor licensing for a qualifying personal residence, but it does not waive the St. James Parish building permit or health and life-safety requirements71.
  • USDA mapping rates 0% of St. James Parish soils as free of severe limitations for a conventional drain field, so secure a site-specific wastewater review before relying on a conventional septic design11.
  • St. James Parish's RV and tiny-home occupancy rules could not be confirmed; ask Planning & Permitting for a written parcel-specific answer before buying or placing a unit24.

Sources

  1. Planning & Permitting Office, quoted and re-checked
  2. Property & Zoning, quoted and re-checked
  3. Louisiana onsite wastewater rules, quoted and re-checked
  4. St. James Parish Planning & Permitting Office (stjamesla.com)
  5. Louisiana Department of Health — St. James Parish Health Unit (ldh.la.gov)
  6. Louisiana Department of Health powers and duties, quoted and re-checked
  7. Louisiana contractor licensing exemptions, quoted and re-checked
  8. Property & Zoning (2026 county census)
  9. stjamesla.com, quoted and re-checked
  10. Louisiana Administrative Code, Title 43, Part VI, §701 (Louisiana statewide rule), quoted and re-checked
  11. 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
  12. Planning & Permitting Office, quoted and re-checked
  13. Louisiana Revised Statutes 40:1730.28, quoted and re-checked
  14. Louisiana Revised Statutes 40:1730.23, quoted and re-checked
  15. Floodplain Development Permits & Regulations, quoted and re-checked
  16. Planning & Permitting Office, quoted and re-checked
  17. Planning & Permitting Office, quoted and re-checked
  18. Property & Zoning, quoted and re-checked
  19. Property & Zoning, quoted and re-checked
  20. Louisiana onsite wastewater rules, quoted and re-checked
  21. RS 14:107.6. Unauthorized camping on public property (Louisiana statewide rule), quoted and re-checked
  22. Planning & Permitting Office, quoted and re-checked
  23. stjamesla.com, quoted and re-checked
  24. St. James Parish Coastal Zone and Floodplain Management (stjamesla.com)
  25. Property Protection & Flood Hazards, quoted and re-checked
  26. Planning Commission, quoted and re-checked
  27. Effective property tax rate: Bolthole Index county data
  28. Median property tax bill: Bolthole Index county data
  29. Typical home insurance premium: Bolthole Index county data

Written October 5, 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.

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Compared with neighboring counties

Like 5 of its 6 neighbors, St. James Parish requires a building permit for a home.

RuleSt. James ParishAscension ParishAssumption ParishSt. John the Baptist ParishSt. Charles ParishLivingston ParishIberville Parish
Building permitRequiredRequiredRequiredRequiredRequiredLimitedRequired
County zoningYesYesNoYesYesYesYes
Septic permitsLA Dept. of HealthLA Dept. of HealthLA Dept. of HealthParish Health UnitParish Health UnitLA Dept. of HealthLA Dept. of Health

County locator

St. James Parish in Louisiana

53
County map
St. James Parish highlighted among the Louisiana counties · colored by Index score

How St. James Parish scores

Seclusion30100% ev.
Self-Sufficiency58100% ev.
Admin Boringness46100% ev.
Durability50100% ev.
Property Autonomy44100% ev.
Carry Cost85100% ev.

Evidence strength: 100%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$210kTypical home
0.5%Property tax
$4,097Land / acre
64.1"Annual rain
8.1% of yrsSevere drought
3.9 / yr (+3.6)Mid-century 100°F days
16 daysMid-century dry spell
3.09" (+5.5%)Mid-century 1-day rain
1.27×Wildfire change factor
100%Forward climate coverage
$2,879Home insurance / yr
-0.3% / yrInsurance growth
1.83%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
80,192People within 30 min
3,256,667People within 2 hr
62,610Radius comparison (15 mi)
80.7People / sq mi
0%Federal land
100%Land at 15% slope or less
0%Soils rated "not limited" for septic (strict USDA rating)
0 acWorkable land screen
60.6%Wooded land
59.8 tonsBiomass / forest ac
68.8°FAvg temp

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Cities and towns in St. James Parish

Inside a city or town, that city usually issues building permits and sets zoning; the county’s rules above cover unincorporated land. Septic, wells and floodplain rules usually stay with the county or state everywhere.

Town of Gramercy · Town of Lutcher

Answers from the rulebook for St. James Parish

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

St. James Parish rules

  • Building permitRequired

    New homes, movement of new mobile homes within the parish, new buildings, residential renovations or additions, and commercial construction or renovation.

    • Commercial applicants must obtain construction drawings, State Fire Marshal approval, and complete necessary applications.
    • Permit fees must be paid when plans are submitted.
    “A permit must be obtained prior to the construction of a new home”
    2 more reviewed findings on this topic
    • Required — New homes, new buildings, new mobile-home movement within the parish, residential renovations, and additions.
      “A permit must be obtained prior to the construction of a new home, the movement of a new mobile home within the parish, or the construction of a new building. Permits must be obtained for renovations of or additions to a residential building.”
    • Required — New homes, new buildings, new mobile-home movement within the parish, residential renovations/additions, and commercial construction or renovation.
      “A permit must be obtained prior to the construction of a new home, the movement of a new mobile home within the parish, or the construction of a new building.”
  • InspectionsRequired

    New construction and substantial improvements in St. James Parish.

    • Inspections must establish compliance with the State Building Codes before a certificate of occupancy is issued.
    “All buildings must be inspected for compliance with the State Building Codes prior to issuance of a certificate of occupancy.”
    One more reviewed finding on this topic
    • Required — All buildings in the parish covered by the cited floodplain and State Building Code requirements.
      “All buildings must be inspected for compliance with the State Building Codes”
  • Certificate of occupancyLimited

    Buildings in St. James Parish for which a certificate of occupancy is issued following State Building Code inspection.

    • The source states that all buildings must be inspected for compliance with State Building Codes prior to issuance of a certificate of occupancy.
    • The source does not expressly establish that every building in the parish must obtain a certificate of occupancy.
    “All buildings must be inspected for compliance with the State Building Codes prior to issuance of a certificate of occupancy.”
  • County-wide zoningPresent (with conditions)

    County land-use regulation administered through the St. James Parish Land Use Ordinance and Parish Council approval process.

    • The official parish page identifies a Land Use Ordinance for St. James Parish.
    • A proposed commercial use in a Residential Growth area required a Planning Commission recommendation and final Parish Council approval because commercial use was not listed as allowable at that location.
    “View the Land Use Ordinance for St. James Parish.”
  • Local zoningPresent (with conditions)

    Parish-level local land-use regulation in St. James Parish; this does not establish that incorporated municipalities administer the parish ordinance.

    • The parish publishes a Land Use Ordinance. Municipal zoning or land-use rules, if any, may apply separately within incorporated municipalities.
    “The property is in an area designated as Industrial in the Land Use Plan. Residential Use is not listed as an allowable use”
  • Zoning districtsPublished (with conditions)

    St. James Parish land-use designations and related zoning/land-use materials.

    • The parish publishes a Land Use Ordinance and land-use map materials; detailed district schedules require review of the ordinance text.
    “The property is in an area designated as Industrial in the Land Use Plan. Residential use is not listed as an allowable use for that location.”
  • SetbacksSpecified

    New residential construction in St. James Parish.

    • The cited permit sheet separately lists different setbacks for accessory construction and mobile-home placement.

    front setback: 20 feet (Accessory construction and other categories have separate stated setbacks.) · back setback: 15 feet (Accessory construction and other categories have separate stated setbacks.) · side setback: 5 feet (The same source also states 10 feet from the other side.) · other-side setback: 10 feet (New residential construction entry.)

    “(20’ Front, 15’ Back, 5’ Side, 10’ from other side)”
  • Mandatory utility hookupConditional

    New residential and commercial construction applications requiring water and/or gas service connections.

    • The parish permit information states that the customer must pay the water and/or gas deposit and connection fee at the time of permitting.
    • The source does not establish a countywide sewer-connection requirement.
    “connection fee at the time of permitting .”
  • Subdividing landRegulated (with conditions)

    Subdivision and resubdivision requests reviewed by the St. James Parish Planning Commission.

    • The cited matter required a lot-line adjustment so an existing driveway would provide access, a letter of no objection from LDH, and delivery of a CAD file.
    • Another subdivision request was tabled pending LDH approval because of the 12,000-square-foot minimum lot-size issue.
    “Requesting simplified subdivision approval to subdivide existing lot into Tract 1 and Tract 2. D. St. Pierre motioned to approve”
    2 more reviewed findings on this topic
    • Regulated (with conditions) — Subdivision of land within the unincorporated areas of St. James Parish.
      “The St. James Parish Planning Commission has the duties and authority to review, approve, and disapprove plots for the subdivision of land within the unincorporated areas of the Parish. In cases where a proposed subdivision includes the construction of new streets, infrastructures, and/or drainage facilities to be dedicated to the Parish, the Planning Commission makes recommendations to the Parish Council for their approval.”
    • Regulated (with conditions) — Subdivisions in St. James Parish.
      “The subdivision ordinance, Chapter 102 of the St. James Parish Code of Ordinances, establishes certain requirements for subdivisions, including a minimum servitude width;”
  • Building in a floodplainRequired

    Development in floodplain areas and special flood hazard areas within St. James Parish.

    • Any development in a floodplain area requires a local permit.
    • Building elevation certificates are required for all construction in special flood hazard areas and floodplains.
    • New homes must have the lowest floor 2 feet above the BFE or +6.0 MSL, whichever is higher, including servicing equipment.
    • Building permits are required for all new construction, improvements, renovations, and other development, including culvert installations.
    • Repairs, reconstruction, rehabilitation, additions, or other improvements costing 50% or more of market value, counted cumulatively for at least ten years, must meet Parish flood elevation requirements.
    • All new construction or substantial improvements must comply with the State Uniform Building Code requirements.
    • A structure damaged so that restoration and repairs equal or exceed 50% of market value is considered substantially damaged and must comply with Parish floodplain regulations.

    minimum elevation: >= 2 feet above BFE or +6.0 MSL, whichever is higher (New homes; servicing equipment is included.) · substantial improvement threshold: >= 50 percent of market value (Cost counted cumulatively for at least ten years.)

    “Any development in a floodplain area requires a local permit.”
  • Permit processPublished (with conditions)

    Parish permitting process for construction and related applications.

    • Applications may be downloaded or picked up at the Planning/Permitting Office or Courthouse Annex during published hours.
    • Online permitting is available through MyGovernmentOnline.
    • Commercial permits require construction drawings, State Fire Marshall approval, and completed applications.
    “Permits applications can either be downloaded, picked up at the Planning/Permitting Office or Courthouse Annex during the hours of 7:30 a.m. to 4:00 p.m. on Mondays through Thursdays or 7:30 to 11:00 a.m. on Fridays.”
    2 more reviewed findings on this topic
    • Published (with conditions) — Parish building-permit application process.
      “Permits applications can either be downloaded, picked up at the Planning/Permitting Office or Courthouse Annex during the hours of 7:30 a.m. to 4:00 p.m. on Mondays through Thursdays or 7:30 to 11:00 a.m. on Fridays.”
    • Published (with conditions) — St. James Parish construction permitting.
      “We now offer online permitting. Please visit MyGovernmentOnline to apply for permits online.”

Louisiana rules that apply here

  • Owner-builder exemptionConditional

    Owners of property supervising or assuming charge of construction, alteration, repair, improvement, movement, demolition, erection, or maintenance of their personal residence in Louisiana under the contractor-licensing exemption in La. R.S. 37:2157(A)(13).

    • The residence must be the homeowner's personal residence and the homeowner may not build more than one residence per year.
    • The one-year period commences on the date the certificate of occupancy is issued.
    • An owner may build more than one single-family dwelling during a one-year period only when an additional residence results from a change in the owner's legal marital status or employment status requiring relocation to another employment location more than fifty miles from the owner's personal residence.
    • An affidavit of exemption on a form provided by the Louisiana State Licensing Board for Contractors must be provided to obtain the building permit.
    • The owner-builder affidavit states that the house must be maintained as the owner's primary residence after issuance of the certificate of occupancy or completion of construction.
    • The exemption does not exempt licensable subcontractors from applicable licensure requirements.
    • Local and state health and life-safety code requirements continue to apply.
    • The official sources do not state a fee for the exemption or affidavit.

    maximum residences: 1 residence per one-year period (Additional single-family dwelling allowed when a change in legal marital status or employment status requires relocation more than 50 miles from the owner's personal residence.) · relocation distance: > 50 miles (Applies to the employment-relocation exception.) · one-year period start: date of issuance of certificate of occupancy

    “Owners of property who [...] assume charge of the construction [...] of their personal residences, if the homeowner does not build more than one residence per year.”
    3 more reviewed findings on this topic
    • Conditional — Owners supervising construction of their personal residence under Louisiana contractor-licensing exemptions.
      “Owners of property who supervise, superintend, oversee, direct, or in any manner assume charge of the construction”
    • Available (with conditions) — Owners supervising construction of their personal residences in St. James Parish.
      “maintenance of their personal residences, if the homeowner does not build more than one residence per year. The one-year period shall commence [...]”
    • Available (with conditions) — Owners constructing or supervising construction of their personal residence.
      “Owners of property who supervise, superintend, oversee, direct, or in any manner assume charge of the construction, alteration, repair, improvement, movement, demolition, putting up, tearing down, or maintenance of their personal residences, if the homeowner does not build more than one residence per year.”
  • Building code adoptedAdopted

    The Louisiana State Uniform Construction Code, including the International Residential Code, applies statewide to regulated construction, including new residential construction, reconstruction, additions to homes previously built to the International Residential Code, and extensive alterations.

    • The International Residential Code enforcement described by the statute is mandatory only for new construction, reconstruction, additions to homes previously built to the International Residential Code, and extensive alterations.
    • Appendix J, Existing Buildings and Structures, may be adopted and enforced only at the option of a parish, municipality, or regional planning commission.
    • The statute excludes Part I-Administration and VIII-Electrical from the International Residential Code adoption described in the excerpt.
    • The council's initial code became effective January 1, 2007.
    • The statute page identifies an amendment effective July 1, 2026.

    extensive alteration threshold: > >50 percent of dwelling-unit area (The statute defines an extensive alteration as one where the total area of all work areas exceeds fifty percent of the dwelling unit.) · initial code effective date: 2007-01-01 · listed amendment effective date: 2026-07-01

    “The applicable standards referenced in that code are included for regulation of construction within this state.”
    6 more reviewed findings on this topic
    • Adopted (with conditions) — Construction subject to Louisiana's State Uniform Construction Code, including new construction, reconstruction, additions, and extensive alterations under the stated residential-code rule.
      “the council shall evaluate, adopt, and amend only the latest editions of the following as the State Uniform Construction Code:”
    • Adopted (with conditions) — Construction regulated by Louisiana's State Uniform Construction Code, including St. James Parish.
      “the council shall evaluate, adopt, and amend only the latest editions of the following as the State Uniform Construction Code:”
    • Adopted (with conditions) — Construction in St. James Parish subject to Louisiana's State Uniform Construction Code.
      “Except as provided in Subsection C of this Section, the council shall evaluate, adopt, and amend only the latest editions of the following as the State Uniform Construction Code:”
    • Adopted (with conditions) — Construction regulated by the Louisiana State Uniform Construction Code statewide.
      “The commission shall evaluate, adopt, and amend only the latest editions of all of the following as the Uniform Construction Code:”
    • Partial — The Louisiana State Uniform Construction Code's statewide adoption of the International Building Code and its referenced standards for construction in Louisiana.
      “(1) International Building Code, not including Parts I-Administrative, and Chapter 27-Electrical. The applicable standards referenced in that code are included for regulation of construction within this state. The appendices of that code may be adopted as needed, but the specific appendix or appendices shall be referenced by name or letter designation at the time of adoption.”
    • Adopted — The Louisiana State Uniform Construction Code, including the International Residential Code, regulates construction statewide and applies to new residential construction, reconstruction, additions to homes previously built to the code, and extensive alterations.
      “The International Residential Code, not including Part I-Administration and VIII-Electrical. The applicable standards referenced in that code are included for regulation of construction within this state. The enforcement of such standards shall be mandatory only with respect to new construction, reconstruction, additions to homes previously built to the International Residential Code, and extensive alterations; however, a municipality, parish, or regional planning commission may enforce Appendix J of the code at its option.”
  • Minimum dwelling sizeDistrict specific (with conditions)

    Municipal zoning districts in Louisiana; the state authorizes municipalities to regulate the size of structures, which may include dwelling-size standards, but does not establish one statewide minimum dwelling size in this provision.

    • Any actual minimum dwelling-size requirement must be found in the applicable municipality's zoning ordinance or district regulations.
    • Local zoning ordinances remain subject to the judicial-review standards stated in the statute.
    “size of structures”
  • Minimum lot sizeSpecified

    Certain subdivisions outside incorporated areas consisting of single-family lots owned by one owner or co-owners, subject to the parish and population exclusions in R.S. 33:106.1(A).

    • Minimum lot area is 22,500 square feet.
    • Minimum frontage is 125 feet.
    • For nonrectangular lots with less than 125 feet frontage, average width must be 125 feet and frontage must be at least 60 feet.
    • Lots must support sewage-disposal systems and individual water systems meeting Louisiana Department of Health suitability requirements.
    • The statutory planning-commission exemption does not apply in the parishes listed in R.S. 33:106.1(A), municipalities within those parishes, or jurisdictions with a population greater than 300,000.
    • The exemption preserves planning-commission authority over utilities, drainage, sewerage disposal, and street-planning dimensions, composition, and alignment.

    minimum lot area: >= 22500 square feet · minimum frontage: >= 125 feet (Nonrectangular lots may have less than 125 feet frontage only if average width is 125 feet and frontage is at least 60 feet.)

    “minimum square footage of twenty-two thousand five hundred square feet, with a minimum width of one hundred twenty-five feet of frontage”
  • Lot coverageDistrict specific (with conditions)

    Municipal zoning districts in Louisiana; municipalities may regulate the percentage of a lot that may be occupied.

    • The applicable lot-coverage percentage is determined by the local zoning ordinance and district.
    • No statewide numerical lot-coverage limit is established by the cited statute.
    “percentage of lot that may be occupied”
  • Building heightDistrict specific (with conditions)

    Municipal zoning districts in Louisiana; municipalities may regulate building height and number of stories.

    • The applicable height limit is determined by the local zoning ordinance and district.
    • No statewide numerical building-height limit is established by the cited statute.
    “height, number of stories”
  • Who permits septicState

    Statewide regulation of individual sewerage systems in Louisiana.

    • The Louisiana sanitary code assigns permitting and approval decisions to the state health officer.
    • The rule is promulgated under R.S. 40:4(A)(6) and R.S. 40:5(9)(20).
    “A person shall not install, cause to be installed, alter subsequent to installation, or operate an individual sewerage system of any kind without first having obtained a permit from the state health officer.”
    One more reviewed finding on this topic
    • State (with conditions) — Regulation of treatment and disposal of municipal or domestic sewage, including onsite sewage rules applicable in St. James Parish.
      “Over the treatment and disposal of municipal or domestic sewage.”
  • Septic permitRequired

    Installation, alteration, or operation of any individual sewerage system in Louisiana, including septic tank systems.

    • A permit from the state health officer is required before installation, alteration, or operation.
    • Plans and specifications must be approved as part of the permit.
    • A temporary installation permit may issue only after the state health officer determines connection to a community-type sewerage system is not feasible and the soil, drainage, lot size/dimensions, and related factors are unlikely to create a nuisance or public health hazard.
    • Permits for lots in formal subdivisions require an official recorded plat/property survey filed with and approved by the Office of Public Health for individual sewerage use.

    permit stages: two-stage process

    “A person shall not install, cause to be installed, alter subsequent to installation, or operate an individual sewerage system of any kind without first having obtained a permit from the state health officer.”
    One more reviewed finding on this topic
    • Required — Individual sewerage systems where onsite sanitation is used.
      “Such permits shall be issued in a two-stage process in accordance with §701.B and C.”
  • Septic inspectionLimited

    Final approval of individual sewerage system installations in Louisiana.

    • Final approval requires verification that the system was installed in compliance with the code.
    • Verification may be by an on-site inspection by a representative of the state health officer and/or a completed Certification by Installer from the licensed installer.
    • The installer must notify the appropriate local Parish Health Unit before installation.
    • The certification must be submitted within 15 days after completion.

    certification submission deadline: 15 days after completion

    “A final permit approving the installation, shall be issued only upon verification that the individual sewerage system has been installed in compliance with this code. The verification of such installation shall be determined by means of an on-site inspection conducted by a representative of the state health officer and/or in the form of a completed "Certification by Installer" form submitted to the state health officer by the licensed installer.”
    One more reviewed finding on this topic
    • Required — Final approval of individual sewerage systems.
      “The verification of such installation shall be determined by means of an on-site inspection conducted by a representative of the state health officer and/or in the form of a completed "Certification by Installer" form submitted to the state health officer by the licensed installer.”
  • Off-grid sanitationLimited

    Use of individual or alternative onsite sewage systems instead of a community-type sewerage system in Louisiana.

    • Individual sanitation is allowed only when community-type sewerage is unavailable or connection is not feasible.
    • The system requires state-health-officer permitting and approved plans.
    • A conventional septic tank system may be used where community sewer is unavailable; an individual mechanical plant may be used only where community sewer is unavailable and the state health officer determines a conventional system would not function properly.
    • Innovative systems are limited to no more than three experimental or developmental installations statewide and require specifically approved plans, specifications, testing procedures, and a prior permit.

    experimental/developmental installations: <= 3 statewide maximum

    “The total number of such installations shall not exceed three throughout the state and shall be approved under the following conditions.”
  • Well permitLimited

    New water wells statewide in Louisiana, including wells outside critical groundwater areas, except the types specifically subject to post-installation notification or other exemptions.

    • All new water wells must be installed by a licensed water-well drilling contractor and registered through the Department of Transportation and Development within 30 days after completion.
    • Unless specifically listed in the exemptions, the owner must submit a water well notification form to the commissioner at least 60 days before installation.
    • Before construction begins, the drilling contractor must confirm that the Office of Conservation has received and responded to the installation notification.
    • Domestic wells, replacement wells, drilling rig supply wells, drought relief wells, and other wells exempted for just cause are subject to post-installation notification rules rather than the ordinary 60-day prior notification.
    • The commissioner reviews prior notifications within 30 days and may impose restrictions, request further information, or take no action; an additional 30-day review period may apply if further information is requested.
    • For large-volume wells or wells in a critical area of groundwater concern, the commissioner may fix allowable production, spacing, and metering; for other wells outside a critical area, an order may only fix spacing.
    • After written confirmation that no restrictions or further information are required, or when the owner accepts imposed restrictions, the owner need not wait the full 60 days and may begin drilling consistently with the notification and restrictions.

    prior notification period: 60 days (Does not apply to well types listed in LAC 43:VI §701.C and D.) · registration deadline after completion: 30 days (The applicable state registration requirement applies to all new water wells.) · additional review period if information requested: 30 days (Additional period begins when the requested information is received.)

    “require a water well notification form be submitted to the commissioner by the owner of the well at least 60 days prior to installation.”
  • Agricultural exemptionConditional

    Agricultural-purpose subdivision regulation by parish planning commissions in Louisiana.

    • The statutory exclusion applies to parish planning regulations governing subdivision of land in unincorporated territory for purposes other than agricultural.
    • Municipal planning commissions are separately authorized to regulate subdivision within their jurisdictions; this claim does not establish a municipal agricultural exemption.
    • Other statutory rules may still apply, including utility, drainage, sewerage-disposal, and street-planning requirements for qualifying subdivisions under R.S. 33:106.1.
    “Before exercising the powers referred to in R.S. 33:110, a parish planning commission shall adopt regulations governing the subdivision of land within unincorporated territory within its jurisdiction for purposes other than agricultural.”
    One more reviewed finding on this topic
    • Available (with conditions) — Farmers performing construction for agricultural purposes on owned or leased land.
      “Any farmer doing construction for agricultural purposes on leased or owned land.”
  • Driveway accessRequired

    Access connections or driveways connecting property to a Louisiana state highway and involving work in LaDOTD right-of-way.

    • The requirement applies to state-highway access connections; access to non-state local roads may instead be governed by the local government.
    • The permit certificate must be signed and numbered before construction begins.
    • Additional design, drainage, traffic-study, inspection, bonding, and restoration conditions may apply.
    “Only upon possession of a signed and numbered Access Connection Permit Certificate may the applicant begin construction of an access connection.”
  • Permit feesPublished (with conditions)

    State Fire Marshal plan-review or document fees for projects whose plans and specifications are submitted to the Louisiana Office of State Fire Marshal, Code Enforcement and Building Safety.

    • A $5 postage and handling fee applies in addition to the plan-review or document fee.
    • Fees vary by occupancy classification, project area, number of sprinkler heads or other devices, appeal type, and review type.
    • The statute provides a first-submission exemption from all other charges for state and local political subdivisions; subsequent submissions require the fees.
    • Performance-based reviews cost twice the applicable review fee plus an additional $100, with a stated $50 resubmission amount for smoke-control and timed-egress reviews.

    postage and handling fee: 5 USD (Does not apply to exemption requests and facsimile transmissions.) · assembly occupancy plan review fee for area 0-2500 square feet: 30 USD · educational occupancy plan review fee for area 0-5000 square feet: 30 USD · hotels, dormitories, apartments, lodgings, rooming houses, and residential or board care facilities plan review fee for area 0-2500 square feet: 30 USD · mercantile/business plan review fee for area 0-3000 square feet: 30 USD · industrial, storage, and special structures plan review fee for area 0-10000 square feet: 30 USD

    “In addition to a postage and handling fee of five dollars, the owner of the project who submits the plans and specifications shall pay to the office of state fire marshal, code enforcement and building safety a plan review or document fee based on the following schedule:”
  • Campground & park staysProhibited

    Overnight camping on Louisiana public property that is not a designated campground.

    • The prohibition applies to public property owned or controlled by the state or any local or political subdivision.
    • Designated campgrounds are excluded from the prohibition.
    • Violation may result in a fine of not more than $500, imprisonment for not more than six months, or both.
    • The statute states an effective date of June 9, 2026.

    maximum fine: <= 500 USD · maximum imprisonment: <= 6 months

    “Unauthorized camping on public property is the intentional use of any tent [...] to permit overnight use on public property that is not a designated campground.”
    One more reviewed finding on this topic
  • county zoning authorityLimited

    Louisiana parish governing authorities' zoning authority over parish land, including unincorporated areas, under the statewide parish zoning enabling subpart.

    • The general parish zoning authorization excludes Rapides, Jefferson, Sabine, and Webster Parishes.
    • A parish may divide the parish into zoning districts, and regulations may differ between districts but must be uniform for each class or kind of land and structure within each district.
    • Zoning regulations must comply with the required comprehensive plan.
    • No regulation becomes effective until after a public hearing.
    • Notice must be published once a week in three different weeks in the official parish journal, with at least fifteen days between first publication and hearing.
    • At least ten days before the hearing, the parish must make a good-faith attempt to notify owners of record by certified mail; when more than ten parcels are zoned or rezoned, official-journal advertisement is adequate notice.
    • To use the powers of the subpart, the parish governing authority must appoint a zoning commission, which must hold a public hearing and issue its final report before the governing authority holds its public hearings or acts.

    excluded parishes: Rapides, Jefferson, Sabine, and Webster · publication interval: 3 different weeks · minimum elapsed time before hearing: >= 15 days · owner notice deadline: >= 10 days before hearing (Good-faith certified-mail notice; official-journal advertisement is adequate when more than ten parcels are zoned or rezoned.)

    “For the purpose of promoting the health, safety, morals, or general welfare of the community, the governing authorities of parishes, other than the parishes of Rapides, Jefferson, Sabine, and Webster, or their duly created boards of adjustment are hereby authorized to regulate and restrict the height, number of stories, and size of structures; the percentage of lots that may be occupied; courts and other open spaces; the density of population; and the location and use of the buildings, structures, and land for trade, industry, residence, or other purposes.”
    One more reviewed finding on this topic
    • Limited — Louisiana parish governing authorities adopting zoning regulations affecting parish territory, including unincorporated areas.
      “the governing authorities of parishes, other than the parishes of Rapides, Jefferson, Sabine, and Webster, or their duly created boards of adjustment are hereby authorized”
  • county building authorityGeneral

    Louisiana parishes may enforce the statewide construction codes and administer building-code enforcement, including permits and inspections, in unincorporated areas.

    • Parishes must enforce only the construction codes provided in the Louisiana State Uniform Construction Code Part.
    • Enforcement includes plan review, inspections, and issuance, denial, or revocation of permits.
    • Each parish must appoint a council-certified building official or contract for those services so the unincorporated area is under the jurisdiction of a certified building official.
    • A parish may use a certified building inspector instead of a certified building official for no more than four years from the date the state uniform construction code becomes effective in the parish.
    • The statute preserves federal manufactured-housing requirements and Louisiana Manufactured Housing Commission jurisdiction for manufactured-home construction, installation, service, renovation, repair, and warranty work.
    • The statute page identifies an amendment effective July 1, 2026.

    temporary certified-inspector period: <= 4 years (Measured from the date the state uniform construction code becomes effective in the parish or municipality.)

    “all municipalities and parishes in this state shall enforce only the construction codes provided for in this Part.”
    One more reviewed finding on this topic
    • General — Louisiana parishes' authority and duty to enforce the state construction codes, including residential construction codes, through building-code enforcement officers or certified third-party providers.
      “Notwithstanding any other law to the contrary relating to the authority of local governments to enforce construction codes, all municipalities and parishes in this state shall enforce only the construction codes provided for in this Part. All municipalities and parishes shall use building code enforcement officers or certified third-party providers contracted by the municipality, parish, or regional planning commission to act in the capacity of a building code enforcement officer to enforce the provisions of this Part.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

  • Living in an RV — Long-term or permanent RV occupancy on land in St. James Parish.
  • Camping on your land — Temporary camping in St. James Parish.
  • Tiny homes — Tiny-home occupancy in St. James Parish.
  • Manufactured homes — Manufactured-home occupancy in St. James Parish.
  • Accessory dwellings — Accessory dwelling units in St. James Parish.
1 more unanswered
  • Short-term rentals

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.

Living off-grid in St. James Parish, Louisiana

Is St. James Parish a good place to live off-grid or homestead?

St. James Parish scores 53/100 on the Bolthole Index, a solid county profile. Its strengths: manageable long-term carry cost and strong self-sufficiency basics: 64.1″/yr rainfall plus 60.6% wooded land. Watch-outs: about 80,192 people within a 30-minute drive.

Do you need a building permit in St. James Parish, Louisiana?

St. James Parish generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Louisiana Department of Health - St. James Parish Health Unit (Bureau of Sanitarian Services). Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

How much does land cost in St. James Parish, Louisiana?

Land in St. James Parish runs about $4,097 per acre, based on the latest county data.

What is the water situation in St. James Parish?

St. James Parish gets about 64.1" of rain a year, with severe drought in roughly 8.1% of years.

How remote is St. James Parish?

A representative private-land location has about 80,192 people within a 30-minute drive and 3,256,667 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

How St. James compares in Louisiana

Compare side-by-side →See all 64 Louisiana counties ranked →