Bolthole Index

Pearl River County, Mississippi

Building permits, zoning and septic rules in Picayune, Mississippi

Picayune, Mississippi requires a city building permit for renovations, additions and new construction inside city limits.1 Picayune sets its own zoning in Pearl River County; onsite septic approval comes from the Mississippi State Department of Health (MSDH), where public sewer is not used.234 Start with the city Building Inspector for construction and Planning & Zoning for the parcel’s district.56

At a glance

Building permits
City building permit required for renovations, additions and new construction1
Zoning
City zoning applies inside Picayune; dimensional standards depend on district2
Septic approval
MSDH approval for onsite systems where public sewer is not used43
Building permit fees
Based on estimated project cost7
Owner-builder
State residential-builder licensing exemption for an owner’s own residence; city building permits still apply81
Flood-zone construction
AE flood-zone construction needs an engineer’s certificate before the city building permit9

Who to call

Building permits

City of Picayune Building Inspector

City building permits, construction inspections and AE flood-zone permit questions

601-798-9777

200 Hwy 11 South

Planning & zoning

City of Picayune Planning & Zoning / Code Enforcement

City zoning, subdivision applications and development questions

601-798-9778

Septic permits

Mississippi State Department of Health, Pearl River County Health Department

Local health-department contact for state onsite wastewater approval and inspections

601-798-6212

7547 Highway 11 North Carriere, MS 39426

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 Picayune means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in Picayune, MS?

Picayune requires a city building permit for all types of renovations, additions and new construction; electrical, plumbing and mechanical work also require permits.1 The City Inspector must inspect the work for compliance with standards and codes.10 Picayune building permit fees depend on the estimated project cost, so bring the estimate when applying.7

Mississippi’s owner-builder exemption concerns residential-builder licensing for an owner’s own residence; the exemption does not remove Picayune’s building permit or inspection requirements.8110 Ask the city Building Inspector which application and inspections your project needs before starting work.5

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

Picayune building permits are sold through the Building Inspector’s office at 200 Hwy 11 South or through the city’s Citizen/Contractor Portal; the building permit information number is 601-798-9777.5 Picayune Planning & Zoning / Code Enforcement lists 601-798-9778 for planning questions.6

For residential new construction in Picayune, bring two sets of plans, a survey and a plot plan.11 For an addition, the city asks for plans showing every structure’s setbacks from property lines and the dimensions of the addition.5 Septic approval is a separate MSDH responsibility; the Pearl River County Health Department is the local health contact.312

Does Picayune have zoning, lot-size rules and setbacks?

Picayune has its own zoning ordinance, so identify the parcel’s district before choosing a house footprint or dividing land.2 In Picayune’s R-1 district, detached single-family lots need at least 10,000 square feet and 90 feet of width at the building line.13 R-1 yards require 30 feet in front, 25 feet at the rear, and a combined side-yard width of 14 feet with at least 7 feet on one side.14 Principal and accessory buildings together may cover no more than 35% of an R-1 lot.15

Picayune’s R-4 standards for detached single-family dwellings differ: at least 5,000 square feet of lot area, 40 feet of width and 100 feet of depth.16 R-4 detached single-family front and rear yards require 20 feet each; combined side yards require 14 feet with at least 7 feet on one side.17 R-4 has separate duplex and modular-home standards, so those detached-house dimensions should not be applied to every dwelling type.1617

How do septic permits work inside Picayune?

For a Picayune home using an individual onsite wastewater system rather than public sewer, MSDH handles septic approval and the soil and site evaluation.34 The evaluation produces a Permit/Recommendation required to obtain a water meter.4 Submit the Notice of Intent before constructing or placing a residence that may need an onsite wastewater system.18

Mississippi’s wastewater rules require abandonment of onsite systems and connection when centralized wastewater treatment becomes available under the regulation; ask Picayune Planning & Zoning to identify the utility authority and sewer requirements for the parcel before planning septic.196 For the onsite approval and inspection route, contact MSDH through the Pearl River County Health Department at 601-798-6212.2012

Can you live in an RV or tiny home on land in Picayune?

We could not confirm a general Picayune allowance for living in an RV, temporary camping or occupying a tiny home on private land; ask Picayune Planning & Zoning about the proposed dwelling, district and length of occupancy before buying.6 Picayune’s city zoning and building permit requirements still make the dwelling type and parcel location relevant.21

We also could not confirm a citywide minimum dwelling floor area or permission for an independent accessory dwelling; ask Planning & Zoning to distinguish an accessory structure from a separate residence.6 Mississippi requires factory-built homes within the inspection program’s scope to be inspected before occupation, and applicable local approvals must be obtained before installation.21 State inspection does not establish that a particular Picayune parcel permits the proposed home; get the city’s zoning answer first.212

Building a home in Picayune: what are the steps, in order?

Start with Picayune Planning & Zoning to identify the zoning district and confirm the intended dwelling use and layout.26 Check flood constraints early: construction in an AE flood zone needs an engineer’s certificate before the city building permit, and the F-1 flood plain district has additional use and approval restrictions.9

Resolve sewer service or the MSDH onsite wastewater approval before construction of a home needing septic.1918 Prepare the residential plans, survey, plot plan and project estimate, then apply to the Picayune Building Inspector for the city building permit.1175 Arrange city inspections as work progresses.10 For land outside city limits, use the Pearl River County guide for the county building permit answer rather than applying Picayune’s rules.22

Watch-outs

  • We could not confirm Picayune’s parcel-specific public sewer connection requirement, private-well permission or off-grid sanitation options; ask city Planning & Zoning and MSDH before committing to an independent water and wastewater setup.612
  • Picayune’s F-1 flood plain district limits uses and requires city-engineer and planning-commission approval for building permits or certificates of occupancy.9
  • New or altered driveway access onto a Mississippi state highway needs MDOT approval even when Picayune issues the building permit.231

Sources

  1. Planning & Zoning / Code Enforcement (Picayune), quoted and re-checked
  2. MEMA District 9 Regional Hazard Mitigation Plan, Annex E (Picayune), quoted and re-checked
  3. On-Site Wastewater (Picayune), quoted and re-checked
  4. On-Site Wastewater (Picayune), quoted and re-checked
  5. City of Picayune Building Inspector (picayune.ms.us)
  6. City of Picayune Planning & Zoning / Code Enforcement (picayune.ms.us)
  7. Planning & Zoning / Code Enforcement (Picayune), quoted and re-checked
  8. Mississippi Senate Journal, March 9, 2022 (Mississippi statewide rule), quoted and re-checked
  9. Section 811. F-1 flood plain district (Picayune), quoted and re-checked
  10. Planning & Zoning / Code Enforcement (Picayune), quoted and re-checked
  11. Planning & Zoning / Code Enforcement (Picayune), quoted and re-checked
  12. Mississippi State Department of Health, Pearl River County Health Department (msdh.ms.gov)
  13. Section 802. R-1 single-family residential district (Picayune), quoted and re-checked
  14. Section 802. R-1 single-family residential district (Picayune), quoted and re-checked
  15. Section 802. R-1 single-family residential district (Picayune), quoted and re-checked
  16. Section 815. R-4 medium-density residential district (Picayune), quoted and re-checked
  17. Section 815. R-4 medium-density residential district (Picayune), quoted and re-checked
  18. Mississippi State Department of Health Onsite Wastewater Regulations and Design Standards, quoted and re-checked
  19. Mississippi State Department of Health Current Regulations: On-site Wastewater (Mississippi statewide rule), quoted and re-checked
  20. Mississippi State Department of Health Current Regulations: On-site Wastewater (Mississippi statewide rule), quoted and re-checked
  21. MH-5 Uniform Standards Code for Factory-Built Homes Law (Mississippi statewide rule), quoted and re-checked
  22. Pearl River County Subdivision Regulations, quoted and re-checked
  23. Mississippi Access Management Guide (Mississippi statewide rule), 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 Picayune

Picayune’s own rules

  • Building permitRequired

    All renovations, additions, and new construction inside Picayune city limits.

    • Electrical, plumbing, and mechanical work also require a permit.
    “A building permit is required by the City of Picayune for all types of renovations, additions, or new construction.”
  • Building code adoptedAdopted (with conditions)

    Building construction inside Picayune city limits.

    • The official regional plan is dated February 2017 and should be checked against later amendments for current code editions.
    “The cities of Picayune and Poplarville have also adopted building codes.”
  • InspectionsRequired

    Permitted building work inside Picayune city limits.

    • The City Inspector inspects work to ensure standards and codes are met.
    “The City Inspector must inspect all work to ensure standards and codes are met.”
  • Local zoningPresent

    Land inside Picayune city limits; the City of Picayune administers its own zoning ordinance.

    • The official regional hazard plan states that Picayune adopted a zoning ordinance; district-specific requirements apply.
    “However, the cities of Picayune and Poplarville have adopted zoning ordinances.”
  • Zoning districtsPublished

    Zoning districts and zoning-map information inside Picayune city limits.

    • The City publishes a 2026 zoning map and the adopted code contains district regulations including R-1, R-2, R-4, C-1, C-2, and F-1.
    “802.1 Purpose of district: The purpose of the R-1 single-family residential district are as follows:”
  • Minimum lot sizeSpecified

    Detached single-family dwellings in the R-4 medium-density residential district.

    • R-4 separately specifies duplex and modular-home standards.

    lot area per dwelling unit: >= 5000 sq ft · lot area: >= 5000 sq ft · lot width: >= 40 ft (measured at building line) · lot depth: >= 100 ft

    “Minimum Lot Requirements Single-family Detached Duplex Modular Home Lot area per dwelling unit (in sq. feet) 5,000 3,600 4,800”
    One more reviewed finding on this topic
    • Specified — Detached single-family dwellings in the R-1 single-family residential district.
      “Minimum lot requirements: Lot area per dwelling unit 10,000 sq. ft. Lot area 10,000 sq. ft. Lot width (as measured at building line) 90 ft.”
  • SetbacksSpecified

    Detached single-family dwellings in the R-1 district.

    • Side yard must have a combined width of 14 feet and at least 7 feet on one side.

    front yard: >= 30 ft · side yard combined width: >= 14 ft · side yard width on one side: >= 7 ft · rear yard: >= 25 ft

    “Minimum yard requirements: Front yard 30 ft. Side yard Combined width 14 ft. Width on one side 7 ft. Rear yard 25 ft.”
    One more reviewed finding on this topic
  • Lot coverageSpecified

    Principal and accessory buildings in the R-1 district.

    maximum building coverage: <= 35 percent

    “Building coverage: No more than 35 percent of the lot may be covered by principal and accessory buildings.”
    2 more reviewed findings on this topic
  • Building heightSpecified

    Principal buildings in the R-1 district.

    • Maximum story count is 2.5.

    maximum vertical height: <= 35 ft · maximum stories: <= 2.5 stories

    “Maximum height permitted: Vertical measure 35 ft. Stories (number) 2.5”
    One more reviewed finding on this topic
  • Subdividing landRegulated (with conditions)

    Subdivision applications inside Picayune city limits.

    • Small subdivision fee: $200 plus advertising fees.
    • Large subdivision fee: $300 plus $5 per lot plus advertising fees.
    • Submit one Mylar and digital copy plus four paper copies, 18 by 24 inches.
    • Completed paperwork must be received at least 30 days before the meeting.

    small subdivision fee: 200 USD (plus advertising fees) · large subdivision fee: 300 USD (plus $5 per lot and advertising fees) · large subdivision per-lot fee: 5 USD/lot (plus base fee and advertising fees)

    “Small Subdivision $200.00 + Advertising Fees [...] Large Subdivision $300.00 + 5.00 per Lot + Advertising Fees”
  • Building in a floodplainLimited

    Development in Picayune F-1 flood plain districts and construction in an AE flood zone.

    • F-1 uses are limited principally to recreational and agricultural purposes and listed special uses.
    • Building permits or certificates of occupancy require city-engineer approval and planning-commission approval of plans.
    • The City planning page states that an engineer's certificate is needed before a permit for an AE flood zone.
    “The use of land and building within a flood plain district shall be limited to recreational and agricultural purposes and other special uses as provided in sections 811.2 and 811.4”
  • Permit feesVariable (with conditions)

    City building permits inside Picayune city limits.

    • The City states that permit cost is based on estimated building-project cost.
    • Subdivision fees are separately stated in the official subdivision application.
    “The cost of the permit is based on the estimated cost of the building project.”
  • Permit processPublished (with conditions)

    Residential and commercial building permits inside Picayune city limits.

    • Residential new-construction applicants must bring two sets of plans, a survey, and a plot plan.
    • Commercial construction requires Site Plan Review Committee approval; plans are due by 10 a.m. the Friday before the Wednesday meeting, followed by proof of insurance before permit issuance.
    • The city offers an online permit portal.
    “Please bring the following to our office to purchase your building permit.”

Rules another office applies inside Picayune

Picayune does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

  • Who permits septicState (with conditions)

    Individual onsite wastewater systems serving property inside Picayune city limits, through Mississippi State Department of Health regulation and regional environmentalists.

    • The MSDH page identifies Pearl River County in the South Region.
    • Municipal sewer systems may displace onsite wastewater requirements where available.
    “The On-site Wastewater program develops policy and regulations and provides technical assistance to regional environmentalists in designing and inspecting Individual On-site Wastewater Disposal Systems (IOWDS)”
  • Septic permitRequired

    New individual onsite wastewater systems inside Picayune city limits where a public sewer connection is not used.

    • A Soil and Site Evaluation provides a Permit/Recommendation required to obtain a water meter.
    • The page does not state that septic is available where public sewer is required.
    “Environmentalists offer Soil and Site Evaluations that provide property owners with a Permit/Recommendation (required to obtain a water meter) and suitable for installation.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Picayune or Pearl River County directly.

  • Owner-builder exemption — Owner-builders performing construction inside Picayune city limits.
  • Minimum dwelling size — Residential dwellings inside Picayune city limits.
  • Living in an RV — Occupancy of recreational vehicles on private land inside Picayune city limits.
  • Camping on your land — Temporary camping on private land inside Picayune city limits.
  • Tiny homes — Tiny-home occupancy inside Picayune city limits.
7 more unanswered
  • Accessory dwellings
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Driveway access
  • 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.

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

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