Weber County ADU rules by city
14 Weber County cities are covered. In 4 of them, detached backyard ADUs are generally allowed today. Each city sets its own lot size, parking and owner-occupancy rules, so check the city page before you design.
| City | County | Internal ADU | Detached ADU | Owner occupancy | S.B. 284 city | Checked |
|---|---|---|---|---|---|---|
| Ogden | Weber | allowedlot 6,000 sq ft+ | allowedno city lot minimum on file | Required | Yes | 2026-09-07 (not fully verified) |
| Roy | Weber | allowedlot 6,000 sq ft+ | not generally allowedlot 11,000 sq ft+ | See city page | Yes | 2026-09-07 (not fully verified) |
| West Haven | Weber | allowedlot 6,000 sq ft+ | allowedno city lot minimum on file | Required | Yes | 2026-09-07 (not fully verified) |
| North Ogden | Weber | allowedlot 6,000 sq ft+ | allowedlot 11,000 sq ft+ | See city page | Yes | 2026-09-07 (not fully verified) |
| South Ogden | Weber | allowedlot 6,000 sq ft+ | allowedlot 10,000 sq ft+ | Required | Yes | 2026-09-07 (not fully verified) |
| Pleasant View | Weber | allowed only in limited casesno city lot minimum on file | allowed only in limited caseslot 11,000 sq ft+ | Required | Yes | ✓ 2026-09-24 |
| Hooper | Weber | allowedno city lot minimum on file | allowed with conditionslot 11,000 sq ft+ | — | Yes | 2026-09-07 (not fully verified) |
| Riverdale | Weber | allowedno city lot minimum on file | allowed with conditionslot 11,000 sq ft+ | — | Yes | 2026-09-07 (not fully verified) |
| Washington Terrace | Weber | allowedno city lot minimum on file | allowed with conditionslot 11,000 sq ft+ | — | Yes | 2026-09-07 (not fully verified) |
| Farr West | Weber | allowedno city lot minimum on file | allowed with conditionslot 11,000 sq ft+ | — | Yes | 2026-09-07 (not fully verified) |
| Plain City | Weber | allowedno city lot minimum on file | allowed with conditionslot 11,000 sq ft+ | — | Yes | 2026-09-07 (not fully verified) |
| Harrisville | Weber | allowedno city lot minimum on file | allowed with conditionslot 11,000 sq ft+ | — | Yes | 2026-09-07 (not fully verified) |
| Marriott-Slaterville | Weber | allowed with conditionsno city lot minimum on file | allowed only in limited casesno city lot minimum on file | — | No / unconfirmed | 2026-09-07 (not fully verified) |
| Uintah | Weber | allowed with conditionsno city lot minimum on file | allowed only in limited casesno city lot minimum on file | — | No / unconfirmed | 2026-09-07 (not fully verified) |
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Unincorporated Weber County land follows county zoning, which this table does not cover. Planning information, not legal advice or a permit.