Unincorporated Grant Parish, Louisiana requires a building permit for new residential structures, shops with living quarters, camps and mobile homes1. The Police Jury has state authority to zone the parish, but we could not confirm an adopted parish-wide zoning ordinance, and incorporated Pollock has its own zoning rules23. Septic permits start with the Grant Parish Health Unit, acting under the Louisiana Department of Health45.
At a glance
- Building permit
- Required for new homes, shops, mobile homes and qualifying camps; $100 residential / $300 commercial, no charge for roofing16
- Zoning
- The Police Jury has state authority to zone, but no adopted parish-wide ordinance is confirmed; Pollock has municipal zoning, and Planning Commission review applies above the parish development thresholds237
- Septic permits
- Start with the Grant Parish Health Unit; installation uses a temporary permit followed by final approval85
- Owner-builder
- Allowed if you file a notarized affidavit claiming exemption from contractor licensure9
- RV / tiny home living
- Not confirmed by an official parish rule; a recreational "camp" specifically cannot be used as a residence once its exemption affidavit is filed10
- Farm structures
- A qualifying farm structure may be exempt from state-code enforcement, but other permits and rules still apply11
- Certificate of Occupancy
- $200 separate fee when required; issued after inspection reports, final sewer approval and any elevation certificate12
- Property tax
- 0.6% effective rate; $864 median annual bill1314
Who to call
Building permits
Grant Parish Police Jury Building Permit Office
Building, mobile home, shop and camp permits, floodplain determinations, elevation certificates and Certificates of Occupancy for unincorporated Grant Parish
200 Main Street, Colfax, LA 71417
Septic permits
Grant Parish Health Unit (Louisiana Department of Health)
Sanitation and septic permits for new construction in Grant Parish, on behalf of the Louisiana Department of Health
corner of Hwy 8 and Webb Smith Drive, Colfax, LA (inside Grant Community Health Center)
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 Grant Parish means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in Grant Parish, Louisiana?
Yes. Unincorporated Grant Parish requires a permit for new residential structures, shops with living quarters, camps and mobile homes1. Grant Parish enforces the Louisiana State Uniform Construction Code15. The residential fee is $100 and the commercial fee is $300, while roofing permits have no charge6. A farm structure other than a residence or an attached structure may be exempt from state-code enforcement, but other laws and permit requirements still apply11. More than four homes on one property is treated as a subdivision, while more than two mobile homes is treated as a mobile-home park; either needs Planning Commission approval before the parish issues a permit7.
Who is the Grant Parish building department, and how do you reach them?
The Grant Parish Police Jury Building Permit Office is the local starting point for building permits and floodplain review; it is at 200 Main Street, Colfax, LA 71417, and its phone number is (318) 627-333310. Applicants must request or update an E-911 address, obtain sanitation approval where applicable, and complete the application at the Permit Office16. The office checks the site for flood-zone status and completion of other permits16. Grant Parish relies on inspection reports during construction: temporary electrical service requires an electrical inspection report and temporary sewer permit, while permanent service requires all inspection reports, final sewer approval and any required elevation certificate1718. Mobile-home electrical inspections come from a certified ICC inspector, and the Permit Office does not collect inspection fees17.
Does Grant Parish have zoning?
Louisiana law authorizes the Grant Parish Police Jury to regulate building height and size, lot coverage, yard sizes, population density and the location and use of buildings and land2. That authority does not by itself show which zoning districts, map or dimensional schedule the parish has adopted, so we could not confirm a current parish-wide zoning ordinance for unincorporated land219. Incorporated Pollock has its own zoning ordinances, including a municipal amendment allowing modular homes in an R-1 Residential District, so Pollock's rules should not be applied to unincorporated land3. The parish rules establish separate development thresholds: more than four homes on one property is a subdivision, and more than two mobile homes on one property is a mobile-home park; Planning Commission approval is required before a permit can issue7. Those thresholds do not establish a setback, minimum home size or lot-coverage rule for an individual parcel. Before buying, ask the Grant Parish Building Permit Office which parish or municipal rules govern the address.
How do septic permits work in Grant Parish?
Septic permits in Grant Parish, come from the Grant Parish Health Unit, where state sanitarians run the onsite sewage permitting system for the Louisiana Department of Health45. The parish's building permit instructions send applicants there first8. Louisiana requires state-health-officer approval before an individual sewerage system is installed, altered or operated20. A conventional septic system may be used only where community sewer is unavailable and the site meets the sanitary-code requirements21. Temporary electrical service requires a temporary sewer permit, and permanent service requires final sewer approval18. Final verification may use an on-site inspection, an installer certification or both22. Only about 8% of Grant Parish soils are rated without severe limitations for a conventional drain field, so establish system feasibility before treating a homesite as buildable23.
Can you live in an RV or tiny home on your land in Grant Parish?
We could not confirm whether Grant Parish allows an RV or tiny home to be used as a full-time residence on private land. The parish does distinguish an exempt recreational camp from a residence: once the camp affidavit is filed and notarized, the camp cannot be used for permanent living10. Installing a mobile home requires a building permit1. More than two mobile homes on one property makes the property a mobile-home park that needs Planning Commission approval before a permit can issue24. Those rules do not answer long-term RV occupancy or establish a separate tiny-home category, so ask the Building Permit Office about the proposed structure, utilities and intended occupancy.
Building a home in Grant Parish: the steps, in order
- Request or update the E-911 address16.
- Contact the Grant Parish Health Unit for the sanitation permit and temporary approval for any onsite sewerage system8.
- Apply at the Grant Parish Permit Office, which checks flood-zone status and completion of other permits16.
- If acting as your own general contractor, file the notarized exemption affidavit listing contractor names and license numbers for the work9.
- In a flood zone, supply the required elevation certificate25.
- Before temporary power, submit the electrical inspection report and temporary sewer permit1718.
- For permanent power and any required Certificate of Occupancy, submit all inspection reports, final sewer approval and the final elevation certificate when applicable1218.
What to check before you buy land in Grant Parish
Confirm flood status first. Grant Parish checks the proposed site, requires an elevation certificate in a flood zone, and may require pre-construction and final elevation certificates before permanent electrical service is released25. Check sewer availability and soils before assuming a conventional septic field will work; only about 8% of Grant Parish soils are rated without severe limitations for one2123. If access connects to a state highway, a signed and numbered LaDOTD access permit is required before driveway construction begins; the rule for a parish road could not be confirmed26. A new water well must be installed by a licensed drilling contractor and registered after completion, while domestic wells follow the state's post-installation notification path27. Grant Parish is about 85% wooded, so verify clearing needs and usable acreage on the actual parcel28. The effective property-tax rate is about 0.6%, and the median annual bill is about $8641314.
Watch-outs
- Parish-wide zoning could not be confirmed even though the Police Jury has state zoning authority, and Pollock has municipal zoning; ask which jurisdiction's use and dimensional rules apply to the parcel23.
- A recreational camp using the parish exemption cannot become a residence, while the full-time RV and tiny-home rules could not be confirmed; ask before planning to live on-site10.
- A code exemption for a qualifying farm structure is not a building-permit exemption; other permit requirements may still apply11.
Sources
- Building Permits, quoted and re-checked
- RS 33:140.121 — Regulation of size and use of buildings, quoted and re-checked
- Town of Pollock Ordinances, quoted and re-checked
- Onsite Wastewater Program, quoted and re-checked
- Grant Parish Health Unit (Louisiana Department of Health) (gppj.org)
- Building Permits, quoted and re-checked
- Building Permits, quoted and re-checked
- Building Permits, quoted and re-checked
- Building Permits, quoted and re-checked
- Grant Parish Police Jury Building Permit Office (gppj.org)
- Uniform Construction Code Enforcement 2024, quoted and re-checked
- Building Permits, quoted and re-checked
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
- Uniform Construction Code Enforcement 2024, quoted and re-checked
- Building Permits, quoted and re-checked
- Building Permits, quoted and re-checked
- Building Permits, quoted and re-checked
- (2026 county census)
- Louisiana Administrative Code Title 51, Part XIII, Public Health—Sanitary Code (Louisiana statewide rule), quoted and re-checked
- Onsite Wastewater Study Material and Louisiana Sanitary Code, quoted and re-checked
- Louisiana Administrative Code Title 51, Part XIII, Public Health—Sanitary Code (Louisiana statewide rule), quoted and re-checked
- 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
- Building Permits, quoted and re-checked
- Building Permits, quoted and re-checked
- LaDOTD Access Connections Policy (Louisiana statewide rule), quoted and re-checked
- Louisiana Administrative Code, Title 43, Part VI, §701 (Louisiana statewide rule), quoted and re-checked
- Wooded share of land: 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.