Unincorporated Boyd County, Kentucky does not require a county building permit for residential construction or remodeling, but Catlettsburg requires city building permits12. Kentucky building codes still apply, and septic permits come from the Ashland-Boyd County Health Department throughout the county345. Ashland and Catlettsburg administer municipal zoning; zoning in unincorporated Boyd County remains unconfirmed678.
At a glance
- Residential building permit
- Not required in unincorporated Boyd County; Catlettsburg requires city building permits12
- Zoning
- Unconfirmed in unincorporated areas; Ashland and Catlettsburg administer municipal zoning867
- Septic permit
- Required through the Ashland-Boyd County Health Department459
- RV living
- Unconfirmed for private land; ask the county before relying on it8
- Tiny home
- No county-specific occupancy or minimum-size rule was confirmed8
- Owner-builder
- You may build your own home in unincorporated Boyd County; trade requirements still apply10
- Floodplain development
- Local and state permits are required in identified floodplains1112
Who to call
Building permits
Boyd County Construction, Permits & Inspection Contacts
Residential permit guidance and contacts for state building, manufactured housing, electrical, plumbing, HVAC and other specialized inspections
Septic permits
Ashland-Boyd County Health Department Environmental Health
Onsite wastewater site evaluations, septic and sewer guidance, and local septic permitting
2924 Holt Street, Ashland, KY 41101
Floodplain permits
Boyd County FEMA Projects & Permitting
Local floodplain permits, floodplain-zone verification and FEMA projects
2800 Louisa Street, Catlettsburg, KY 41129
Also useful
Boyd County Judge Executive's Office
General county government questions, including which county ordinances or land-use requirements apply to a parcel
2800 Louisa Street, Catlettsburg, KY 41129
Contact details are copied from each office’s official page and were checked against it on October 12, 2026.
Off-grid gear
Going off-grid in Boyd County 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 Boyd County, Kentucky?
Unincorporated Boyd County does not require a county residential building permit for construction or remodeling1. Inside Catlettsburg, the city requires building permits for construction, alterations and other building work2. Septic permits in Catlettsburg still come from the Ashland-Boyd County Health Department5. The Kentucky Residential Code still governs single-family homes, two-family homes and townhouses13. Where no single-family inspection program exists, the builder must still meet that code; HVAC systems and electrical work remain subject to their specialized inspections314. Boyd County also lists plumbing, mobile-home and state building inspection contacts, but does not say every home receives a general county building inspection15. A certificate of occupancy may still be required by local ordinance16. Ask the listed building contact about commercial building permits and which inspection path applies to the project1718.
Who issues building permits and inspections in Boyd County?
In Catlettsburg, start with the city Building Inspector for building permits; septic permits remain with the Ashland-Boyd County Health Department25. The county routes commercial building permits, electrical inspections, plumbing permits and inspections, mobile-home inspections, HVAC inspections, and state building or manufactured-housing inspections to separate contacts171518. Electrical construction, installation, alteration and repair require inspection unless a listed state exemption applies14. Excavation of any kind is separately routed through Boyd County's stormwater-permit process, though the published page does not give a complete application workflow or review timeline19. Residential plumbing permits carry a $50 base fee plus $14 per opening, while a domestic-water-heater-only permit is $5020. For commercial building permits, start with the building contact at 606-424-694318.
Does Boyd County have zoning?
Ashland has municipal zoning: land use, occupancy and construction inside city limits must conform to the parcel's district regulations6. Ashland's Department of Community and Economic Development reviews subdivision plans, site plans, zoning changes, conditional-use permits and variances21. Catlettsburg also administers municipal zoning; its zoning map is on file in the City Clerk's office, and the Board of Zoning Adjustment determines questions about exact district boundaries7. We could not confirm zoning districts, setbacks or minimum lot sizes in unincorporated Boyd County; ask the Boyd County Judge Executive's Office which rules govern the parcel822. Septic evaluations, septic permits and inspections remain with the Ashland-Boyd County Health Department throughout the county, including Ashland and Catlettsburg235. Within a Kentucky planning-unit jurisdiction, a subdivision plat needs planning-commission approval before recording; a qualifying agricultural division creating no new street is excluded2425.
How do septic permits work in Boyd County?
Kentucky sets the onsite sewage framework, while the Ashland-Boyd County Health Department administers site evaluations, septic permits and inspections throughout Boyd County, including addresses inside Ashland4235. Begin with a site evaluation, then obtain the onsite sewage permit before constructing, installing or altering any part of the system9. A certified Kentucky installer normally installs the approved system; a homeowner doing the work needs a homeowner permit from the local health department26. Every installed, constructed, altered or repaired onsite system must be inspected by a certified inspector, with the installation inspection completed before backfilling2728. Only about 2.9% of mapped Boyd County soils are rated "not limited" for a conventional drain field; that does not make septic impossible elsewhere, but makes a site evaluation and possibly an engineered system central to choosing a house location29. Contact Environmental Health at 606-324-7141 to begin30. Where public sewer is unavailable, the building drain must connect to an approved private sewage-disposal system31.
Can you live in an RV or tiny home in Boyd County?
We could not confirm an unincorporated Boyd County rule allowing or prohibiting long-term RV occupancy, temporary camping, tiny-home occupancy, accessory dwellings or a minimum dwelling size on private land8. Inside Ashland and Catlettsburg, municipal zoning applies to the parcel67. Boyd County's lack of a residential building-permit requirement does not settle land use or occupancy1. Manufactured housing has separate state oversight and inspection contacts3218. Wherever the parcel lies in Boyd County, onsite wastewater questions remain with Ashland-Boyd County Health Department Environmental Health23530.
Building a home in Boyd County: the steps, in order
- Ask the Boyd County Judge Executive's Office which zoning, subdivision, setback or land-use rules apply outside city limits; inside Ashland or Catlettsburg, confirm municipal zoning with the city86722.
- Contact the Ashland-Boyd County Health Department for a site evaluation and septic permit before choosing the final house location33930.
- Confirm electrical, plumbing and HVAC requirements; unincorporated Boyd County requires no residential building permit, but Catlettsburg requires city building permits114152.
- Ask Boyd County about the stormwater permit before excavation of any kind19.
- Hire a Kentucky Certified Water Well Driller if the property needs a well; the property owner does not file a well-construction permit application or pay a well-permit fee34.
- Apply in writing to the state highway District Engineer before adding a farm or single-family driveway on a state right-of-way35.
What should you check before buying land in Boyd County?
Start with buildability, not the asking price. Only about 26.5% of Boyd County land has a slope of 15% or less, and only about 2.9% of mapped soils are rated "not limited" for a conventional septic drain field3829. The soil rating does not mean septic is impossible; arrange an early site evaluation to determine whether an engineered system is needed2930. Boyd County requires a development-permit application before construction or other development in a special flood-hazard area, and the Floodplain Administrator must endorse the project before the state floodplain permit can be processed36. Confirm legal road access and apply to the state District Engineer if a new driveway will enter a state highway35. Boyd County's effective property-tax rate is about 1%, with a median annual property-tax bill of about $1,2333940.
Watch-outs
- Ashland and Catlettsburg administer municipal zoning; zoning in unincorporated Boyd County remains unconfirmed, while septic permits stay with the Ashland-Boyd County Health Department countywide6785.
- No county residential building permit does not mean no building code: Kentucky residential standards still apply in unincorporated Boyd County, and specialized inspections remain required where applicable1314.
- Only about 2.9% of mapped Boyd County soils are rated "not limited" for a conventional septic drain field; septic may still be possible elsewhere, subject to a site evaluation and an approved system299.
- Construction or other development in a special flood-hazard area needs a Boyd County development permit before work begins, followed by the applicable state floodplain permit3612.
Sources
- Construction, Permits & Inspection Contacts, quoted and re-checked
- Catlettsburg: § 150.15 Building Permit Required (Boyd County), quoted and re-checked
- Building Codes — Department of Housing, Buildings and Construction, quoted and re-checked
- Onsite Sewage Disposal Systems Program, quoted and re-checked
- Ashland-Boyd County Health Department - Environmental (2026 county census)
- Ashland: Chapter 157: Zoning Code (Boyd County), quoted and re-checked
- Catlettsburg: § 154.003 Authority and Purpose (Boyd County), quoted and re-checked
- (2026 county census)
- Title 902 Chapter 10 Regulation 085 — Kentucky Onsite Sewage Disposal Systems, quoted and re-checked
- Kentucky law on county zoning and building authority
- Boyd County Flood Damage Prevention Ordinance #400-2013, quoted and re-checked
- Find Your Flood Zone (Kentucky statewide rule), quoted and re-checked
- 815 KAR 7:125 Kentucky Residential Code, quoted and re-checked
- 815 KAR 35:020 Electrical inspections, quoted and re-checked
- Construction, Permits & Inspection Contacts, quoted and re-checked
- 815 KAR 7:125 Kentucky Residential Code, quoted and re-checked
- Construction, Permits & Inspection Contacts, quoted and re-checked
- Boyd County Construction, Permits & Inspection Contacts (boydcountyky.gov)
- Construction, Permits & Inspection Contacts, quoted and re-checked
- Department of Housing, Buildings and Construction — Division of Plumbing, quoted and re-checked
- City of Ashland Annual Comprehensive Financial Report, quoted and re-checked
- Boyd County Judge Executive's Office (boydcountyky.gov)
- Onsite Sewage Disposal Systems Program, quoted and re-checked
- KRS 100.277 — Commission approval required for subdivisions (Kentucky statewide rule), quoted and re-checked
- KRS 100.111 — Definitions for chapter (Kentucky statewide rule), quoted and re-checked
- Onsite Sewage Disposal Systems Program, quoted and re-checked
- Onsite Sewage Disposal Systems Program, quoted and re-checked
- Onsite Sewage Disposal Systems Program, 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
- Ashland-Boyd County Health Department Environmental Health (abchdkentucky.com)
- 815 KAR 20:130. House sewers and storm water piping; methods of installation (Kentucky statewide rule), quoted and re-checked
- 815 KAR 7:120 Kentucky Building Code (Kentucky statewide rule), quoted and re-checked
- Onsite Sewage Disposal Systems Program, quoted and re-checked
- Water Well Information for Home Owners (Kentucky statewide rule), quoted and re-checked
- 603 KAR 1:020 Driveway approaches, entrances; construction and maintenance (Kentucky statewide rule), quoted and re-checked
- 400-2013 Property and Environmental Flood Damage Prevention, quoted and re-checked
- Boyd County FEMA Projects & Permitting (boydcountyky.gov)
- Share of land at 15% slope or less: Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
Written October 12, 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.