Grant County, West Virginia does not publish a clear countywide residential building-permit requirement on the official pages reviewed, although the County Assessor lists building permits among that office's responsibilities12. Before building, call the Assessor and confirm the rule for the parcel and project. A Grant County Health Department septic permit comes before any building permit3.
At a glance
- Building permit
- Countywide residential requirement unconfirmed; ask the Grant County Assessor before work begins12
- Zoning
- Countywide zoning status unconfirmed; subdivision rules apply when unincorporated land is divided45
- Septic
- A Grant County Health Department permit is required to install an individual sewage system3
- Private well
- Obtain a local-health-department permit before drilling, modifying or abandoning an individual well6
- Owner-builder
- Personal work by an owner or occupant is exempt from contractor licensure, not from applicable permits or codes7
- RV or tiny home
- Long-term RV occupancy, temporary camping and tiny-home rules remain unconfirmed; ask the county and health department43
- Subdivision
- Planning Commission approval and a subdivision permit apply to covered divisions of unincorporated land5
Who to call
Building permits
The official county page lists building permits among the Assessor's responsibilities; contact the office to confirm requirements for a project.
5 Highland Avenue Petersburg, WV 26847
Septic permits
Grant County Health Department
Individual onsite sewage and private-water-well permits and environmental-health questions.
739 North Fork Highway Petersburg, WV 26847
Planning & zoning
Central county contact for routing zoning, Planning Commission, subdivision and floodplain questions.
5 Highland Avenue Petersburg, WV 26847
Contact details are copied from each office’s official page and were checked against it on September 28, 2026.
Do you need a building permit in Grant County, West Virginia?
Grant County's countywide residential building-permit requirement could not be confirmed from the official material reviewed1. The official Grant County Assessor page includes building permits in its list of responsibilities, but it does not identify which work needs a permit or state the application process2. Call the Assessor at 304-257-1050 before clearing, excavating, placing a manufactured home or starting construction2. West Virginia's State Building Code has force only in counties and municipalities that adopt it; Grant County's adoption status remains unconfirmed81. State fire inspections generally exclude houses occupied by one or two families, but that exclusion does not answer the county-permit question9. Buildings used primarily for agriculture are exempt from the State Building Code, State Fire Code and adopted county or municipal building codes8.
Who handles Grant County building permits, and how do you reach the office?
Start with the Grant County Assessor, whose official county page lists building permits among the office's responsibilities2. The office is at 5 Highland Avenue, Petersburg, WV 26847, and its phone number is 304-257-10502. Because the published page does not state the permit trigger, fees, required plans or inspection sequence, ask for a project-specific determination before work begins1. For zoning, Planning Commission, subdivision or floodplain routing, the Grant County Administrator is the county's central point for constituent information requests10. The Administrator can be reached at 304-257-4422 or [email protected] at the same courthouse address10. If the parcel is inside an incorporated municipality, also ask that municipality about its own requirements because West Virginia's code framework allows local adoption and municipal rules are distinct from county rules1112.
Does Grant County have zoning?
Grant County's countywide zoning status is unconfirmed, so do not treat unincorporated land as unrestricted4. West Virginia allows a county zoning ordinance to cover the entire county or only parts of it, and a municipality may regulate land within its own jurisdiction12. Ask the Grant County Administrator to route a parcel-specific question about zoning, setbacks, minimum home size and allowed uses10. A separate, confirmed rule applies when land is divided: Grant County's subdivision ordinance governs covered subdivision and conveyance of real estate in unincorporated Grant County and requires a subdivision permit and Planning Commission approval unless an exemption applies5. State law requires locally adopted subdivision ordinances to include lot-size standards, but it creates no single statewide numeric minimum lot size13. A parcel may also carry deed restrictions or easements that are separate from government zoning, so review the recorded title documents before purchase.
How do septic permits and wells work in Grant County?
The Grant County Health Department requires homeowners and installers to obtain a permit before installing an individual sewage system, and the septic permit must be obtained before any building permit is issued3. Call Environmental Services at (304) 257-9768 or visit 739 North Fork Highway, Petersburg, WV 2684714. Ask about site evaluation, system design, installer requirements and inspections because the complete county inspection sequence remains unconfirmed3. Only 2.5% of mapped Grant County soils are rated without severe limitations for a conventional septic drain field, so settle septic feasibility before choosing a house site15. That countywide soil measure does not decide an individual parcel. West Virginia also requires a local-health-department permit before drilling, modifying or abandoning an individual water well, and a licensed well driller must perform the drilling6. In a subdivision using individual onsite sewage, health-department subdivision approval precedes well and sewage installation permits16.
Can you live in an RV or tiny home on land in Grant County?
Grant County's rules for long-term RV occupancy, temporary camping and tiny-home occupancy could not be confirmed, so obtain answers for the specific parcel before moving onto it4. Ask the Grant County Administrator about land-use and subdivision restrictions and the Grant County Health Department about wastewater arrangements103. Do not assume that the absence of a confirmed countywide zoning ordinance makes year-round RV living permissible. Tiny homes still need a lawful sewage plan where an individual system is used because homeowners and installers must obtain an onsite-sewage permit3. Off-grid sanitation alternatives such as composting toilets or holding tanks also remain unconfirmed; ask Environmental Services what the department will approve before relying on one314. An owner who personally performs construction is exempt from West Virginia contractor licensure, but that exemption does not waive applicable permits, codes, inspections or occupancy requirements7.
Building a home in Grant County: what are the steps?
- Call the Grant County Assessor to learn whether the proposed work needs a building permit and what application materials apply21.
- Ask the Grant County Administrator whether county or municipal zoning, subdivision rules, setbacks or floodplain review affect the parcel104.
- Contact the Grant County Health Department early for septic and well approvals, especially because only 2.5% of mapped soils lack severe conventional drain-field limitations315.
- If the land is being divided, obtain the required Planning Commission approval and subdivision permit before conveying covered lots5.
- Obtain WVDEP construction-stormwater authorization if disturbance reaches 1 acre or is part of a larger common plan17.
- Obtain a free Division of Highways permit before building a new driveway onto a state highway18.
- Complete any required floodplain review before development in a regulated floodplain19.
What should you check before buying land in Grant County?
Confirm a buildable site, not just total acreage. Only 34.9% of Grant County land has a slope of 15% or less, and 77.3% is wooded, so inspect the likely house pad, driveway grade, clearing needs and solar exposure2021. Septic deserves early attention because only 2.5% of mapped soils are rated without severe limitations for a conventional drain field15. Check whether a proposed driveway meets a state highway; a new connection requires a Division of Highways permit18. Ask the county about floodplain permitting because every West Virginia county participates in the federal flood-insurance program and regulates floodplain development19. Verify whether the tract is a lawful existing parcel or needs subdivision approval5. Finally, budget using parcel-specific tax records: the countywide effective property-tax rate is about 0.3%, and the median annual property-tax bill is about $5552223.
Watch-outs
- The Assessor's page mentions building permits but does not say which residential projects require one; call before starting work21.
- A septic permit must be obtained before any building permit is issued in Grant County3.
- Countywide zoning status is unconfirmed, while covered subdivisions of unincorporated land require Planning Commission review45.
- Only 2.5% of mapped county soils are rated without severe limitations for a conventional septic drain field15.
Sources
- (2026 county census)
- Grant County Assessor (grantcountywv.org)
- Grant County Health Department - Sewage and Water (2026 county census)
- (2026 county census)
- Grant County Subdivision Ordinance, quoted and re-checked
- Water Wells (West Virginia statewide rule), quoted and re-checked
- West Virginia Code §30-42-6. Necessity for license; exemptions (West Virginia statewide rule), quoted and re-checked
- West Virginia Code §15A-11-5, Promulgation of rules and statewide building code (West Virginia statewide rule), quoted and re-checked
- Fire & Life Safety Inspections (West Virginia statewide rule), quoted and re-checked
- Grant County Administrator (grantcountywv.org)
- West Virginia Code §7-1-3n. Authority of certain counties as to building and housing codes; state building code (West Virginia statewide rule), quoted and re-checked
- West Virginia Code §8A-7-1. Authority for zoning ordinance (West Virginia statewide rule), quoted and re-checked
- West Virginia Code §8A-4-2. Contents of subdivision and land development ordinance. (West Virginia statewide rule), quoted and re-checked
- Grant County Health Department (gcwestvirginia.com)
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Subdivision On-Site Sewage Systems, quoted and re-checked
- Construction Stormwater General Permit (West Virginia statewide rule), quoted and re-checked
- Encroachment Permits (West Virginia statewide rule), quoted and re-checked
- Floodplain Permits (West Virginia statewide rule), quoted and re-checked
- Share of land at 15% slope or less: Bolthole Index county data
- Wooded share of land: Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
Written September 28, 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.