Accessory Structures in Nebraska (2026)
17 rules on the books across Nebraska, 5 cities and counties. Select a rule to read the full details.
Severity: Few Restrictions · Light Restrictions · Some Restrictions · Significant Restrictions · Heavy Restrictions
ADU Rules
Rules for building accessory dwelling units (granny flats, in-law suites) including size limits, parking requirements, and owner-occupancy rules.
Lancaster County
Significant RestrictionsOne accessory dwelling unit per lot is allowed by special permit on Lancaster County acreage of 20 acres or more…
Read full rule →Omaha
Significant RestrictionsOmaha allows one accessory dwelling unit per residential lot, but most base districts require a conditional use permit…
Read full rule →Douglas County
Some RestrictionsIn unincorporated Douglas County, an accessory dwelling unit is allowed by right in the AG, RR and R-1 districts if its…
Read full rule →Lincoln
Some RestrictionsLincoln allows an accessory dwelling unit alongside a single-family home in the R-1 through R-4 districts, but caps its…
Read full rule →Sarpy County
Some RestrictionsNebraska has no statewide ADU mandate: the proposed LB 1166 was never enacted. In unincorporated Sarpy County an…
Read full rule →ADU Owner Occupancy
Whether the property owner must live on-site to operate an ADU, deed-restriction requirements, and recent state-law changes lifting owner-occupancy rules.
ADU Rental Restrictions
Whether an ADU can be rented short-term (Airbnb), 30-day minimums, separate rental licenses, and long-term lease requirements.
Lincoln
Significant RestrictionsLincoln requires accessory dwelling unit owners to live on-site, bars selling the ADU apart from the main house via…
Read full rule →Omaha
Some RestrictionsRenting out an Omaha accessory dwelling unit requires registering it as a rental property under Chapter 48, and the ADU…
Read full rule →Shed & Carport Rules
When a storage shed or carport needs a permit, the square-footage exemption thresholds, and the setback and height limits that apply either way.
Douglas County
Some RestrictionsIn unincorporated Douglas County, a shed or other accessory building can't exceed 20% of the rear yard, can't be lived…
Read full rule →Lancaster County
Some RestrictionsLancaster County caps how much accessory-building floor area a single-family or two-family residential lot can carry…
Read full rule →Lincoln
Some RestrictionsIn Lincoln's R-1 through R-8 residential districts, a detached carport must sit at least 60 feet back from the front…
Read full rule →Omaha
Some RestrictionsOmaha treats a carport as an ordinary accessory structure, not a garage: it must sit inside the lot's buildable area…
Read full rule →Sarpy County
Few RestrictionsA small shed skips the building permit in unincorporated Sarpy County: the adopted 2018 IRC exempts one-story detached…
Read full rule →Garage Conversions
Rules for converting a garage into living space, including whether you need to replace the lost parking and what building codes apply.
Tiny Homes
Zoning rules for tiny houses on wheels and foundations, including minimum square footage requirements and where they can be placed.
Nebraska: statewide
StatewideSome RestrictionsNebraska adopts the 2018 International Residential Code as the statewide minimum building standard under Neb. Rev…
Read full rule →Omaha
Some RestrictionsOmaha allows one detached, attached, or internal ADU per residential lot under Sec. 55-763, capped at 16 feet tall with…
Read full rule →Sarpy County
Some RestrictionsA tiny home's status in Sarpy County turns on its foundation. On a permanent foundation it is a dwelling under the…
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