Unincorporated Ouachita Parish, Louisiana requires a building permit for a home, issued by the Parish Permit Office under Louisiana's mandatory State Uniform Construction Code12. The parish also handles zoning through that office3, while septic permits go through the Louisiana Department of Health and the Ouachita Parish Health Unit4. An owner may build a primary residence without a contractor license only if the owner will live there, obtains local permits, and completes the homeowner exemption form5.
At a glance
- Building permit
- Required in unincorporated Ouachita Parish, issued by the Permit Office1
- Zoning
- Yes, administered by the Permit Office3
- Septic permit
- Louisiana Dept. of Health, through the Ouachita Parish Health Unit4
- Owner-builder
- Allowed for a primary residence you will live in, with local permits and a homeowner exemption form5
- Driveway culvert permit
- $250 through the Permit Office, then Public Works surveys and sizes the pipe67
- Site development permit
- Not required for one detached home plus one accessory building on a tract8
- RV or tiny home living
- Unconfirmed parish-wide; ask the Permit Office which zoning district your parcel is in9
- Minimum lot size (exempt subdivisions)
- 22,500 sq ft with 125 ft of frontage, plus a suitable septic and water system10
Who to call
Building permits
Building permits, planning and zoning, culvert permits and floodplain management for unincorporated Ouachita Parish
1650 Desiard Street, Suite 202, Monroe, LA 71201
Also useful
Ouachita Parish Permit Office (Culvert Permits)
Culvert and new-driveway-culvert permits for parish-maintained roads in unincorporated Ouachita Parish
1650 Desiard St, Suite 202, Monroe, LA
Planning & zoning
Ouachita Parish Public Works — Site Development Permits
Site development permits for development on more than one acre outside incorporated towns in Ouachita Parish
Floodplain permits
Ouachita Parish Permit Office — Floodplain Management
Floodplain determinations, flood elevation certificates and the parish's Community Rating System status
Septic permits
Louisiana Department of Health, Office of Public Health, Region 8 (Ouachita Parish Health Unit)
Onsite wastewater (septic) permit applications and inspections for unincorporated Ouachita Parish
1650 DeSiard St., 2nd Floor, Monroe, LA 71201
Roads & driveways
Road maintenance, culvert installation surveys and site development permit review in unincorporated Ouachita Parish
337 Well Road, West Monroe, LA 71292
Contact details are copied from each office’s official page and were checked against it on September 29, 2026.
Do you need a building permit in Ouachita Parish, Louisiana?
Yes. Unincorporated Ouachita Parish requires a building permit for a home, administered by the Permit Office under the parish's own building permit ordinance1. Louisiana's State Uniform Construction Code applies statewide and its enforcement mandate covers new construction, reconstruction, additions to homes previously built to the International Residential Code, and extensive alterations211. The parish reviews plans and can issue, deny, or revoke the permit, so budget time for plan review before you start digging a foundation11. Once construction begins, an inspector checks the work against the code that was in effect for the parish when your permit was issued12. Plan on this process for a house, a barn, or a large addition on unincorporated land alike.
Who is the Ouachita Parish building department, and how do you reach them?
The Ouachita Parish Permit Office issues building permits, culvert permits, and floodplain determinations for the unincorporated parish, and sits on the second floor of the Ouachita Parish Health Unit at 1650 Desiard Street, Suite 202, Monroe, Louisiana 712019. The Permit Office is open Monday through Friday from 8:00 AM to 4:30 PM, and the parish provides an online Citizen Portal application link13. Call (318) 398-9780 or email [email protected] with parcel-specific questions9. A new driveway culvert or a culvert replacement also runs through the Permit Office, which charges $250 to install a new driveway culvert or a replacement, and another $250 to install a culvert that encloses a ditch6. Once that permit is issued, Ouachita Parish Public Works, at 337 Well Road, West Monroe, Louisiana 71292, phone (318) 387-2383, surveys the site and tells you what pipe diameter you need7. Public Works will not set a second driveway on any single lot, so plan your access point before you apply6.
Does Ouachita Parish have zoning?
Yes. Unincorporated Ouachita Parish is zoned, and the Permit Office administers planning and zoning alongside building permits, so call them to confirm your parcel's district before you buy39. Louisiana law lets a parish's governing authority create zoning districts and regulate structure height, lot coverage, and yards and setbacks, and Ouachita Parish is not one of the four parishes the statute excludes from that general grant14. The exact setback, height, and lot-coverage numbers for your parcel depend on its district and are set locally, not by a statewide number151617. Separately, a parish site development permit is required for most development on more than one acre outside the parish's incorporated towns, but a single detached home with one accessory building on a tract is exempt from that specific permit8. If your land sits in one of the exempt single-owner subdivisions outside an incorporated area, state law also sets a 22,500-square-foot minimum lot size with 125 feet of frontage for those lots10.
How do septic permits work in Ouachita Parish?
Septic permits in Louisiana come from the state, not the parish: the Louisiana Department of Health issues them, with applications and inspections handled through the Ouachita Parish Health Unit4. No one may install, alter, or operate an individual sewerage system anywhere in the parish without a permit from the state health officer first18. A conventional septic tank system is allowed only where a community sewer connection is not available, and final approval comes only after an on-site inspection or a signed installer certification confirms the system was built to code1920. Reach the Health Unit on the second floor of 1650 DeSiard Street in Monroe at (318) 361-720121. On soils, 30.1% of Ouachita Parish's soil is rated suitable (not 'very limited') for a conventional drain field, which means a large share is not, so budget for a site evaluation and expect some lots to need an engineered or mound system22. If you're buying into one of the exempt single-owner subdivisions, your lot still has to support a septic system and an individual water system the Department of Health finds suitable before it counts toward the reduced lot-size rule10.
Can you live in an RV or tiny home on your land in Ouachita Parish?
We could not confirm a parish-wide rule on living in an RV or tiny home on unincorporated land. Louisiana's state rule on camping stays without a reservation only governs facilities run by the Office of State Parks, and it does not set a rule for private rural land23. Because unincorporated Ouachita Parish is zoned and the Permit Office administers that zoning, your parcel's specific district may allow, restrict, or forbid RV or tiny-home living, and only the Permit Office can tell you which applies to your address39. Call the Permit Office before you buy if living on-site in an RV or tiny home while you build is part of your plan9. Do not assume the parish's site-development-permit exemption for a single detached home covers this question too; that exemption is about the development permit, not a zoning use rule8.
Building a home in Ouachita Parish: the steps, in order
- Confirm your parcel's zoning district and whether it needs a separate site development permit by calling the Ouachita Parish Permit Office before you buy93.
- Apply for your building permit at the Permit Office or through the online Citizen Portal, and expect plan review under Louisiana's State Uniform Construction Code132.
- If you will build your own primary residence, obtain the local permits and homeowner exemption form; the contractor-license exception requires you to live in the home and does not cover a home built to rent or sell5.
- If you're adding or replacing a driveway culvert, apply at the Permit Office for a $250 culvert permit, then let Ouachita Parish Public Works survey the site and size the pipe67.
- If your driveway will connect to a state highway rather than a parish road, get a signed and numbered LaDOTD access-connection permit before construction starts24.
- Apply for your septic permit through the Louisiana Department of Health / Ouachita Parish Health Unit before installing any system, then schedule the final on-site inspection once it's built211820.
- Schedule your building inspections; an inspector will use the code in effect for the parish when your permit was issued12.
What to check before you buy land in Ouachita Parish
Ouachita Parish is not remote: population density runs about 258 people per square mile, and the parish's own cities of Monroe and West Monroe sit inside it, with the nearest city of 100,000 or more people roughly 94 miles away2526. Typical home value is $181,417, and the median property tax bill is $1,016 a year at an effective rate around 0.6%272829. Check flood risk parcel by parcel: unincorporated Ouachita Parish participates in FEMA's Community Rating System as a Class 8 community, which should mean a 10% discount on flood insurance premiums, and the Permit Office keeps flood elevation certificates on file back to 199830. Typical homeowner's insurance runs about $2,107 a year, and the parish has seen severe drought in about 17.9% of recent years, so ask about well or rural water availability alongside septic suitability3132. About 72.4% of the parish is wooded and 99% of its land sits at 15% slope or less, so most tracts are buildable without heavy grading, but confirm soils on your specific lot before counting on a standard septic drain field333422.
Watch-outs
- Ouachita Parish's flood insurance discount is tied to a Class 8 Community Rating System rating dated to October 2023 on the Permit Office's own page; confirm the current class and discount with the Permit Office since CRS classes are reviewed periodically30.
- A single detached home plus one accessory building on a tract is exempt from the parish's site development permit, but that exemption does not excuse you from the separate building permit, culvert permit, or septic permit81.
Sources
- Ouachita Parish, LA Code of Ordinances, Ch. 3.5 Art. III (Building Permits) (2026 county census)
- Louisiana Revised Statutes § 40:1730.28 (Louisiana statewide rule), quoted and re-checked
- Ouachita Parish Police Jury — Permit Office (Planning and Zoning) (2026 county census)
- Louisiana Department of Health — Office of Public Health, Onsite Wastewater (2026 county census)
- FAQ – Louisiana State Licensing Board for Contractors, quoted and re-checked
- Ouachita Parish Permit Office (Culvert Permits) (oppj.org)
- Ouachita Parish Public Works (oppj.org)
- Ouachita Parish Public Works — Site Development Permits (oppj.org)
- Ouachita Parish Permit Office (oppj.org)
- RS 33:106.1 — Planning commissions; exempt subdivisions; septic tanks and field drains permitted (Louisiana statewide rule), quoted and re-checked
- Louisiana Revised Statutes 40:1730.23 — Enforcement of building codes by municipalities and parishes (Louisiana statewide rule), quoted and re-checked
- Louisiana Revised Statutes 40:1730.23 — Enforcement of building codes by municipalities and parishes (Louisiana statewide rule), quoted and re-checked
- Permit Office, quoted and re-checked
- La. R.S. 33:4780.40 — Regulation authorized (Louisiana statewide rule), quoted and re-checked
- RS 33:4721 — Regulation of size and use of buildings (Louisiana statewide rule), quoted and re-checked
- RS 33:4721 — Regulation of size and use of buildings (Louisiana statewide rule), quoted and re-checked
- RS 33:4721 — Regulation of size and use of buildings (Louisiana statewide rule), quoted and re-checked
- Louisiana Administrative Code Title 51, Part XIII, Public Health—Sanitary Code (Louisiana statewide rule), quoted and re-checked
- Louisiana Administrative Code Title 51, Part XIII, Public Health—Sanitary Code (Louisiana statewide rule), quoted and re-checked
- Louisiana Administrative Code Title 51, Part XIII, Public Health—Sanitary Code (Louisiana statewide rule), quoted and re-checked
- Louisiana Department of Health, Office of Public Health, Region 8 (Ouachita Parish Health Unit) (ldh.la.gov)
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Louisiana Office of State Parks Policy and Procedure Memorandum #6 — Reservation Changes and Refunds (Louisiana statewide rule), quoted and re-checked
- LaDOTD Access Connections Policy (Louisiana statewide rule), quoted and re-checked
- Population density: Bolthole Index county data
- Distance to the nearest metro area: Bolthole Index county data
- Typical home value (Zillow): Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
- Ouachita Parish Permit Office — Floodplain Management (oppj.org)
- Typical home insurance premium: Bolthole Index county data
- Share of years in severe drought: Bolthole Index county data
- Wooded share of land: Bolthole Index county data
- Share of land at 15% slope or less: Bolthole Index county data
Written September 29, 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.