Dayton planners recommend allowing finished shipping containers on lots of two acres or more

The Dayton Planning Commission voted 4–1 on May 7 to recommend that the City Council consider a code amendment to treat finished shipping containers as accessory structures on larger parcels, with staff directed to refine the draft and ensure agricultural‑district language is consistent.

Background and proposal
Staff explained that current City code restricts shipping containers to temporary storage and that two recent event‑center approvals used containers as permanent elements (for a concession/bar and for seasonal props), prompting the city to draft an amendment. Staff presented parcel maps showing properties of two acres and five acres or more and noted some commissioners had previously discussed a one‑acre threshold; commissioners expressed concern that wetlands on many newer one‑acre lots could effectively create much smaller usable areas.

Commission discussion and rationale
Commissioners debated whether the policy should allow containers in residential zones, what minimum lot size should apply and how to limit visual impacts. Several members said they are comfortable treating shipping containers like other accessory buildings but only on parcels large enough (two acres) to reduce the chance a container would sit directly adjacent to neighbors or appear in a built‑out subdivision. They also asked staff to make the ordinance explicit about excluding wetland area from parcel size calculations or otherwise clarifying usable acreage, and to move or mirror the relevant language into the agricultural (AG) district section so there is no conflict.

A divided vote but clear direction
A motion to recommend approval of the accessory‑building revisions as written, with the two‑acre threshold and staff direction to reconcile AG‑district language and seek legal review, carried 4–1 on roll call (Commissioner Demouth: I; Commissioner Sergeant: no; Commissioner Brown: I; Commissioner Crosslin: I; Commissioner Grover: I). The planning commission closed the public hearing and will forward its recommendation and the revised ordinance language to the City Council for consideration.

Next steps and concerns to watch
Staff will refine the draft ordinance to (1) specify whether lot size thresholds refer to gross or net (usable) acres, (2) add appearance/material requirements so permanent containers must be finished or painted to match accessory‑building standards, and (3) confirm agricultural district wording is consistent. One commissioner said they would dissent to any move that effectively allows industrial‑style containers to become permanent fixtures in residential backyards; others said a two‑acre threshold addresses that concern.