Omaha ADU permit requirements
Last reviewed: June 22, 2026
Quick answer
Permitting an accessory dwelling unit (ADU) in Omaha, Nebraska means pulling a building permit from the local authority that issues it. ArchPermit tracks 13 source-cited requirements (7 required, the rest conditional) for this jurisdiction. Submittals go through OmahaPermits.com online portal. These requirements were last reviewed June 22, 2026; confirm the exact forms and fees with the local permitting authority.
A source-cited checklist of what an ADU (accessory dwelling unit) permit package needs in City of Omaha. Every item links to its authoritative source; items that vary are flagged to confirm locally.
One ADU max per site (detached, attached, or internal). By-right (building permit only) in the R5, R-WRN, R6, R7, R8, MH, NBD, CBD, DS, and TOD districts; a Conditional Use Permit (Planning Board approval, $324, notice mailed within 300 ft) is required in DR, R1 to R4, LO, GO, LC, CC, GC (and AG) before a building permit can issue. Omaha Municipal Code § 55-763(a). An ADU cannot be sold/subdivided separately and adds no required on-site parking. Owner-occupancy is NOT a condition in the ADU subsection (that language belongs to other use types), so it is not asserted here.
- Building Permit Applicationrequired
Completed City Building Permit Application (online via an OmahaPermits.com account, or paper).
source · reviewed 2026-06-22 - Elevation Drawingsrequired
Elevations of all sides of the new construction.
source · reviewed 2026-06-22 - Floor Plansrequired
Structural load path (IRC R301.1); footing sizes; beam/header sizes; joist/rafter size/spacing/species; braced-wall lines; smoke + CO detectors; egress windows; labeled room use.
source · reviewed 2026-06-22 - Plan Sets (3 paper / PDF online)required
Min. three full sets if paper (11×17 min, ink); site plans ≤1"=30 ft, building plans ≥¼"=1 ft.
source · reviewed 2026-06-22 - Sealed Survey Certificaterequired
One copy of a sealed, signed, dated survey certificate for the lot.
source · reviewed 2026-06-22 - Site Planrequired
Dimensioned lot lines; ADU dimensions; distances from lot lines; street names + north arrow; driveways/sidewalks/decks with dimensions; total impervious & building coverage.
source · reviewed 2026-06-22 - Wall Sectionrequired
Footing sizes + drain tile; foundation reinforcing & anchor bolts; foundations >8'8" sealed by a structural engineer; floor/wall/roof assemblies with insulation.
source · reviewed 2026-06-22 - Conditional Use Permit Approvalconditional
In DR, R1 to R4, LO, GO, LC, CC, GC (and AG): a CUP application (zoning form, site plan, building design, statement of intent, $324 fee) approved by the Planning Board BEFORE the building permit issues.
source · reviewed 2026-06-22 - Floodplain Development Permitconditional
Required if the site is in a Flood Fringe or Floodway Overlay District.
source · reviewed 2026-06-22 - Rental Registrationconditional
Required (§ 48-204) if the ADU (or any unit on the site) is offered for rent.
source · reviewed 2026-06-22 - Septic System and/or Well Permitconditional
One copy of a septic/well permit, if applicable.
source · reviewed 2026-06-22 - Signed ResCheck (energy code)conditionalverify locally
Listed conditionally on the checklist ('if a ResCheck is provided'); confirm the energy-code path for the ADU with Permits & Inspections.
source · reviewed 2026-06-22 - Stair Sectionconditional
If stairs are present: rise/run, headroom, handrail, and baluster-spacing details.
source · reviewed 2026-06-22
Omaha ADU permit questions
- Do I need a permit to build an ADU in Omaha?
- Yes. An accessory dwelling unit (ADU) in Omaha requires a building permit. ArchPermit tracks 13 cited requirements for this jurisdiction (7 required, the rest conditional). Always confirm the exact forms, fees, and code edition with the local permitting authority that issues the permit.
- What does an ADU permit package require in Omaha?
- Core required items include: Building Permit Application; Elevation Drawings; Floor Plans; Plan Sets (3 paper / PDF online); Sealed Survey Certificate; Site Plan, plus 1 more. Each requirement links to its authoritative source, and nothing is permit-ready until an independent licensed professional reviews and seals it.
- How are ADU permits submitted in Omaha?
- Omaha accepts permit submittals via OmahaPermits.com online portal. ArchPermit prepares a draft package you can submit there after a licensed architect reviews and seals it.