What Can You Build Without a Permit in Nebraska? (2026)
The 30-second answer for Nebraska
In Nebraska, the projects you can usually build without a building permit are a small detached shed, a short freestanding deck, a fence under the height cap, a low retaining wall, and cosmetic interior work. The exact limits Nebraska enforces are in the table below — and your city can be stricter than the state. The catch every homeowner needs to hear: even when no permit is required, the building code, zoning setbacks, and any HOA rules still apply. Permit-exempt means the paperwork is waived, not the rules.
How Nebraska sets the rules
Nebraska has a State Building Code (Neb. Rev. Stat. 71-6403) that adopts the 2018 IBC and the 2018 IRC (IRC minus section R313 and chapters 25-33). Enforcement is local: counties, cities, and villages may adopt the state code or a code that conforms generally with it, and the state code applies by default only if a jurisdiction fails to adopt one within two years of a state update. Permits, exemptions, and inspections are run by each local building department, so many rural/unincorporated areas require no permit at all while Omaha and Lincoln add extensive amendments.
Permit-exempt limits in Nebraska
These are the thresholds we verified for Nebraska. Treat each one as the most you can usually do without pulling a permit — a stricter city amendment always wins.
| Project | Nebraska permit-exempt limit |
|---|---|
| Detached shed / accessory building | No single statewide answer. Under the unamended 2018 IRC (Nebraska default), a one-story detached accessory structure up to 200 sq ft is permit-exempt (R105.2), but the two biggest cities are stricter: Lincoln exempts only a playhouse up to 65 sq ft and requires a permit for storage sheds of ANY size (LMC 20.12.035), and Omaha requires a permit application and site plan for garages and sheds even under 150 sq ft. Confirm the threshold with your local building department; zoning setbacks apply regardless. |
| Deck | Follows the 2018 IRC baseline where the unamended state code applies: a deck is exempt only if it is ALL of 200 sq ft or less, 30 inches or less above grade, not attached to the dwelling, and not serving the required exit. Lincoln does not list decks among its exemptions, so a building permit is required for a deck of any size (LMC 20.12.035); Omaha requires a site plan and structural drawings for decks. Verify locally. |
| Fence | Fences 7 feet or less in height are permit-exempt under the state 2018 IRC baseline and under Lincoln's code ('Fences not over 7 feet high,' LMC 20.12.035); a permit is required above 7 feet. Permit-exempt is not zoning-exempt — front-yard height caps, setbacks, corner sight-triangle rules, and materials are still enforced, and some cities may require a fence permit regardless (verify with your city). |
| Retaining wall | A retaining wall 4 feet or less in height and not supporting a surcharge (sloped backfill or added load) is permit-exempt under the 2018 IRC baseline and Lincoln code (LMC 20.12.035, which measures the 4 ft from the lowest adjacent grade to the top of the wall — note the IRC model text measures from the bottom of the footing). A permit is required above 4 feet or with a surcharge; Omaha requires an engineer seal for walls over 6 feet. Verify locally. |
| Patio (on grade) | An at-grade concrete or paver patio generally does not need a building permit under the IRC baseline (a floor/walk/platform not more than 30 inches above grade and not over a basement or story below). Lincoln exemptions cover sidewalks and driveways (regulated separately under other code chapters) but not raised patios. Grading, drainage, and zoning lot-coverage rules still apply, and a covered or roofed patio needs a permit. Verify locally. |
Baseline: 2021 International Residential Code, Section R105.2. See the national project-by-project guide for how each threshold works.
Can you do the work yourself in Nebraska?
Yes. Under Nebraska's Contractor Registration Act, a person who performs work or has work performed on his or her own property is not a contractor and need not register (Neb. Rev. Stat. 48-2104), so a homeowner can pull the permit and do the work on a home they own and occupy. The exemption does not cover property improved for resale or speculation. In Lincoln, electrical and plumbing permits may be issued to a homeowner only for their primary residence. No statewide owner-builder affidavit, but individual cities may require one.
What's different about Nebraska
There is no statewide permit — it depends on your city or county
Nebraska's State Building Code is only enforced where a local government has adopted and enforces it (Neb. Rev. Stat. 71-6406). Many rural or unincorporated areas require no building permit at all, while Omaha and Lincoln layer on heavy local amendments. Always confirm with the building department that actually has jurisdiction over your address.
Lincoln requires a permit for a storage shed of any size
Lincoln amended IRC R105.2 (LMC 20.12.035) so the only permit-exempt detached accessory structure is a playhouse up to 65 sq ft. A 10x12 storage shed that would be exempt under the plain 2018 IRC (up to 200 sq ft) still needs a building permit in Lincoln.
Lincoln's pool exemption is more generous than the model code
Lincoln exempts prefabricated, temporary swimming pools with a depth of 48 inches or less (LMC 20.12.035), versus the 2018 IRC's exemption for prefabricated pools less than 24 inches deep. Fencing/barrier and zoning rules still apply even when the pool itself is permit-exempt.
"Permit-exempt" does not mean rule-free
I spent 25 years as a firefighter before I built PermitDeck, so let me be blunt about the part that gets people hurt. "No permit" never means "no rules." When a project is exempt in Nebraska, three things are still true — and now you are the one responsible for them, because no inspector is coming to check:
- Building code still applies. An exempt deck in Nebraska still has to meet the structural rules of IRC R507 — real footings, a proper ledger, and guards. A shed still has to carry your local snow and wind load. The code does not care whether a permit was pulled.
- Zoning and setbacks still apply. Exempt does not mean you can put it anywhere. Setbacks from property lines, easements, lot-coverage caps, and corner-lot sight lines all still bind you — and a neighbor complaint can force you to move it.
- HOA rules are separate. Your HOA architectural review is a private contract, not a government permit. You can be fully permit-exempt with your city and still be forced by your HOA to tear something out.
The big Nebraska cities
Permits are pulled locally, so your city's building department has the final word. Here are the two largest, with a link straight to their office.
Omaha
Omaha adopts the 2018 IRC and 2018 IBC, with permit administration in Municipal Code Chapter 43 (the city's adopted 2018 IRC amendments do not touch R105.2). City guidance requires a permit application and site plan for garages and sheds even under 150 sq ft, structural drawings for decks, and an engineer seal for retaining walls over 6 ft. Owner-occupants may pull their own permit.
Omaha building departmentLincoln
Lincoln amends IRC R105.2 in Lincoln Municipal Code 20.12.035: exempt building work is limited to a playhouse up to 65 sq ft, fences up to 7 ft, retaining walls up to 4 ft (no surcharge), and prefab temporary pools up to 48 inches deep. Storage sheds and decks of any size require a permit. Electrical and plumbing permits are issued to a homeowner only for their primary residence.
Lincoln building departmentTurns out you do need a permit? We'll match you with pros who pull it
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What happens if you needed a permit and skipped it
Guessing wrong on the exemption is not a small risk. The common outcomes are a stop-work order, a fine (often double the normal permit fee), and being ordered to open finished work back up for inspection or tear it out. The expensive part usually lands later: unpermitted work routinely kills a home saleat the buyer's inspection, and an insurance claim can be denied if the damage traces back to unpermitted construction. Most jurisdictions do allow a retroactive (after-the-fact) permit — it costs more, but it clears the record.
Full detail: what happens if you build without a permit and how to get a building permit.
Nebraska permit-exemption FAQs
Do I need a building permit for a shed in Nebraska?
It depends on your city. Under the plain 2018 IRC that Nebraska adopts by default, a detached shed up to 200 square feet is exempt, but Lincoln requires a permit for storage sheds of any size (only a playhouse up to 65 square feet is exempt) and Omaha requires a permit application and site plan for sheds. Always confirm with your local building department and follow zoning setbacks.
Can I build a deck without a permit in Nebraska?
Only a low, freestanding deck can skip the permit. Where Nebraska 2018 IRC baseline applies, a deck is exempt only if it is 200 square feet or less, no more than 30 inches above grade, not attached to the house, and not serving the required exit. Lincoln requires a permit for every deck, and Omaha requires a site plan and structural drawings.
How tall can a fence be without a permit in Nebraska?
Under Nebraska's 2018 IRC baseline and Lincoln's code, a fence 7 feet or less tall does not need a building permit; taller fences do. But permit-exempt is not zoning-exempt: front-yard height limits, corner sight-triangle rules, and setbacks still apply, and some cities require a fence permit regardless. Check your city zoning office before you build.
Can a homeowner pull their own building permit in Nebraska?
Yes. Nebraska's Contractor Registration Act says a person who works on their own property is not a contractor and need not register (Neb. Rev. Stat. 48-2104), so you can pull the permit and do the work on a home you own and occupy. It does not cover homes improved for resale. Lincoln issues homeowner electrical and plumbing permits only for a primary residence.
Sources we verified against
- Neb. Rev. Stat. 71-6403 — State building code (adopts 2018 IBC & 2018 IRC)
- Neb. Rev. Stat. 71-6406 — Local adoption, amendment, and enforcement
- Neb. Rev. Stat. 48-2104 — Contractor Registration Act: owner exemption
- Lincoln Municipal Code 20.12.035 — R105.2 Amended; Work Exempt from Permit
- City of Omaha Permits & Inspections — Codes and Amendments (2018 IRC/IBC)
Every threshold on this page is anchored to Nebraska's building code or the sources listed above. Where a number varies by city and we could not verify it, we say "verify locally" rather than guess — a permit page you cannot trust is worse than no page at all.
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