A building permit in unincorporated Pennington County is issued under the county’s Building Code and Construction Ordinance (Ordinance No. 735), which requires a permit before any building or structure is erected, constructed, enlarged, moved or demolished and adopts the most current editions of the International Building Code and International Residential Code — so this county is a real building authority, unusual in South Dakota, even as it leaves the fire, electrical, plumbing and gas codes to the state.
Pennington County's distinctive requirement is a county contractor licence. The ordinance sets two tiers, a Class A and a Class B licence, and a contractor must hold the appropriate one to do permitted work in the unincorporated county — a credential separate from anything the state requires. The county charges its own building inspection fees, while the fire, electrical and gas codes are administered by the State of South Dakota.
This guide covers the unincorporated area of Pennington County. Rapid City and other incorporated cities run their own departments and issue their own permits; confirm the address is unincorporated before filing with the county.
The county licenses its contractors, in two tiers. Because Pennington County issues its own Class A and Class B contractor licences and checks them on permitted work, a contractor new to the unincorporated county should obtain the right tier before the job rather than at the permit counter.
What requires a building permit in Pennington County?
So in Pennington County the questions are whether a building code is enforced at all, which edition it is on, and whether the contractor holds the county's own Class A or Class B licence, and that the county defers fire, electrical and gas to the state.
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Get a free quote →Typically permit required
- A Pennington County building permit under the Building Code and Construction Ordinance before any building or structure is erected, constructed, enlarged, moved or demolished
- A Pennington County Class A or Class B contractor licence for the contractor doing permitted work
- An electrical permit and inspection from the South Dakota Electrical Commission, or from the city in Sioux Falls and Rapid City
- A plumbing permit from the South Dakota Plumbing Commission, or from the city in Aberdeen, Brandon, Rapid City, Sioux Falls and Spearfish
- State Fire Marshal review where the project is a school, a day care centre, a group family day care home, or a fuel or LP-gas storage installation
- A locally adopted building code to design and build to, where the jurisdiction enforces one
Often exempt
- Minor work the county ordinance places below its permit threshold, where zoning still applies
- A local building permit in a jurisdiction that has adopted no building code — much of unincorporated South Dakota
- State Fire Marshal review for occupancies outside its narrow statutory list
- Ordinary repairs the adopted code places below the permit threshold, where a code applies
- Small accessory structures where the local code's own exemption reaches them
Whether a building code is enforced where you are building
Pennington County enforces a Building Code and Construction Ordinance in the unincorporated area and requires a permit for construction — and it adds a county credential most South Dakota jurisdictions do not: a contractor needs a Pennington County contractor licence, issued in a Class A or Class B tier. Fire, electrical and gas codes, by contrast, are administered by the State of South Dakota rather than the county.
South Dakota has no state-enforced building code: each city or county decides whether to adopt one. The state Electrical and Plumbing Commissions permit and inspect those trades, except in a few cities that run their own inspections. South Dakota rules
Who handles permitting in Pennington County?
Unincorporated Pennington County is served by the county Planning Department (Planning & Zoning), which administers the county’s Building Code and Construction Ordinance, issues building permits and contractor licences, and inspects the work. Applications can be emailed to plz@pennco.org, mailed, or handed in at the office from 7am to 4pm, Monday to Friday. Fire, electrical, plumbing and gas are administered by the state.
| Detail | Information |
|---|---|
| Authority | Pennington County Planning and Zoning Department |
| Office | County Administration Building, 900 Concourse Drive, Suite 160, Rapid City, SD 57703 · Monday to Friday, 7am to 4pm |
| Phone | (605) 394-2186 · plz@pennco.org |
| Contractor licence | County Class A (any structure) or Class B (one- and two-family homes) licence, each needing a passed exam; homeowners building their own residence are exempt |
| Trades | Fire, electrical and gas administered by the state; plumbing by the state commission |
Not sure this scope needs a permit?
Get a free quote →In 2025, building permits issued in unincorporated Pennington County authorized 151 new privately owned housing units, 149 of them single-family homes, according to the U.S. Census Bureau Building Permits Survey.
Permit types
Residential permits
New houses, additions, alterations, moved buildings and conversions in the unincorporated county need a permit under the Building Code and Construction Ordinance, and the contractor must hold the county's Class A or Class B licence. The county inspects the building; the electrical and plumbing run through the state, and the fire code is administered by the state.
Commercial permits
Commercial construction is reviewed under the county ordinance, with the county contractor licence required; new commercial work over 2,400 square feet needs plans stamped by a South Dakota registered architect or engineer. Schools, day care centres for 21 or more children, group family day care homes (13 to 20 children) and fuel or LP-gas storage installations additionally need State Fire Marshal plan approval, and because the county leaves the fire, electrical and gas codes to the state, those approvals come from the state rather than the county.
The state permits that run regardless of local code
In Pennington County the fire code is administered by the state, the electrical code by the state, and plumbing by the state commission, so the county's own review is the building side.
South Dakota licenses electricians and plumbers at state level but has no state general contractor licence; a city may add its own. South Dakota rules
Pennington County permit costs and fees
Pennington County charges its building permit and its own inspection fees, and the county contractor licence carries a fee by tier. The state electrical and plumbing permits are separate, as is the state fire review where it applies.
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Call 1-855-478-4290 →| Item | Fee or rule |
|---|---|
| Building permit | Charged under the county ordinance and scaled to the project |
| County inspections | $25 initial (siting) inspection and $100 final (as-built) inspection, paid with the permit application |
| Contractor licence | $300 for a Class A licence, $150 for Class B; licences run three years |
| Electrical and plumbing | Permitted and inspected by the state, billed separately from the county |
The county licence tier is a project cost. The Pennington County contractor licence, in its Class A or Class B tier, is a county credential the contractor must budget for in addition to the permit and the state trade permits, and the county checks it before it will issue.
Trade permits and who may pull them
Permit required
- Electrical — by a licensed electrician, or by the owner in their own owner-occupied home or farmstead, permitted and inspected by the South Dakota Electrical Commission (by the city in Sioux Falls and Rapid City)
- Plumbing — by a licensed plumber, or by the owner in their own home, permitted and inspected by the South Dakota Plumbing Commission (by the city in Aberdeen, Brandon, Rapid City, Sioux Falls and Spearfish)
- Mechanical and fuel gas — under the code edition the city has adopted, where it enforces one
- Fire protection — to the standard the State Fire Marshal or the city fire code sets for the occupancy
Typically exempt
- Building trades in a jurisdiction that enforces no building code, beyond the state electrical and plumbing permits
- Like-for-like replacement not amounting to a new installation
Electrical and plumbing permits come from the state commissions, except in a few cities that issue their own. South Dakota rules
Rather not deal with the Pennington County building department?
Get a free quote →How to apply for a Pennington County building permit
Cities with building departments enforce their adopted code; many counties and small towns enforce none, and then there is no local building permit.
The city inside its limits, the county in unincorporated areas only if it has adopted a code, or no one for building work.
Where a code applies, state law sets the edition, but each city makes its own amendments — Sioux Falls and Rapid City are not the same.
From the South Dakota Electrical Commission and Plumbing Commission, except in the few cities that run their own electrical or plumbing inspections.
Required for schools, day care centres, group family day care homes and fuel or LP-gas storage installations.
City or county inspections where a code is enforced, state electrical and plumbing inspections except in the few cities that do their own, then the certificate of occupancy where a code applies.
Review, corrections and what actually causes delay
The Pennington County delays that recur are credential delays: a contractor without the county Class A or Class B licence, or a project that assumed the county would handle fire or electrical when those are the state's. Getting the county licence in place and pulling the state permits in parallel keep the county review on track.
Inspections in Pennington County
Where a city enforces a code, inspections follow the sequence in its adopted edition — footing, foundation, framing, rough trades, insulation and final — requested from the city against the permit number. Electrical and plumbing inspections are separate: they are carried out by the state commissions, and their approvals are what the city and, where it is involved, the State Fire Marshal rely on. Where a jurisdiction enforces no building code, the state electrical and plumbing inspections may be the only ones the work receives. A certificate of occupancy closes the file where a code is enforced. In Pennington County the building inspections are carried out by the county against the permit number, with an initial and a final inspection set by ordinance, while electrical and plumbing are inspected by the state and the fire code is administered by the state.
Want this handled start to finish?
Get a free quote →Pennington County permit search and official resources
- Pennington County Planning and Zoning — the Building Code and Construction Ordinance, permits and county contractor licences
- Pennington County planning and zoning ordinances — the permit requirement, contractor licence tiers and the state-administered fire, electrical and gas codes
- South Dakota Electrical Commission — statewide electrical permits, electrician licensing and inspections
- South Dakota Plumbing Commission — statewide plumbing permits and plumber licensing
- South Dakota State Fire Marshal (Department of Public Safety) — plan review for schools, day care centres, group family day care homes and fuel storage
Frequently asked questions
Does Pennington County require a building permit?
Yes, in the unincorporated area. The county’s Building Code and Construction Ordinance requires a permit before any building or structure is erected, constructed, enlarged, moved or demolished. Rapid City and other cities issue their own permits.
What is the county contractor licence?
Pennington County issues its own contractor licence in a Class A tier (any type of structure) and a Class B tier (one- and two-family homes), and a contractor must hold the appropriate one to do permitted work in the unincorporated county. At least one licence holder must pass a national standard building contractor exam; a homeowner building their own residence is exempt. It is separate from anything the state requires and is checked before the county issues.
Inspections are where schedules slip.
Get a free quote →Who handles fire, electrical and gas?
The State of South Dakota. The county ordinance expressly leaves the fire code, the electrical code and the fuel gas code to state administration, so those approvals come from the state, not from Pennington County.
Who inspects electrical and plumbing?
The South Dakota Electrical Commission and the South Dakota Plumbing Commission, which permit and inspect those trades statewide. The county inspects the building itself.
Does the State Fire Marshal review my project?
Only for the occupancies within its narrow reach — schools, day care centres for 21 or more children, group family day care homes (13 to 20 children) and fuel or LP-gas storage installations — plus the state’s administration of the fire code. Most ordinary county projects do not draw a separate State Fire Marshal plan review.
What does the county inspect?
The building work: an initial siting inspection and a final as-built inspection, which the county carries out only after the state electrical and plumbing inspectors have approved their work. Accessory structures of 400 square feet or less are exempt from the county inspections.
Simplify Pennington County permitting with Alliance Permitting
21+ years of working real jurisdictions is what tells you that Pennington County runs further than almost any South Dakota county: a Building Code and Construction Ordinance, its own Class A and Class B contractor licences, and a clean division that leaves fire, electrical and gas to the state. Our team gets the county contractor licence in place, pulls the state electrical and plumbing permits, and tracks the county submittal through its initial and final inspections to closeout — corrections included.
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Send us the scope and the parcel. We confirm the review path with the Pennington County Planning and Zoning Department, assemble the submittal, file it, and track it through issuance — corrections included.
More South Dakota permitting guides
More South Dakota permitting guides
This guide is provided by Alliance Permitting for general information about Pennington County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.