County · Indiana

ADU rules in Allen County

1 source

These are the primary sources for accessory dwelling unit regulations in Allen County: the county's own zoning code, planning department pages, and permit guides. Start here before talking to anyone: the rules below are what your permit reviewer will apply.

Unincorporated areas only

County zoning applies only outside city limits. If your property is inside a city or town, that municipality's own ADU ordinance governs instead, even though it sits within Allen County.

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ADU regulations

allencounty.in.govOfficial sourceLive July 2026https://www.allencounty.in.gov/DocumentCenter/View/7225/Title-3-Article-2---Zoning-Districts-Amended-January-10-2024

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Zoning codes change. If a link is dead or Allen County has updated its ordinance, report it and we'll verify against the official source.

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