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Hamilton County

Hamilton County Planning + Development, Division of Buildings + Inspections

In short

Hamilton County Planning + Development, Division of Buildings + Inspections issues 3 permits we publish for Hamilton County, last verified 2026-09-30. Each carries the fee as the agency publishes it, with a link to the schedule it was read from.

What this agency issues

Permits required, with issuing agency, fee, renewal term and the date each record was last verified against its source
Commercial Building Permit (Ohio Building Code)Hamilton County Planning + Development, Division of Buildings + InspectionsCalculated, not flat. Per FEE_SCHEDULE_2026, which states that 'This fee schedule shall become effective January 1, 2026 as adopted by the Hamilton County Board of Commissioners', for buildings and structures regulated by the Ohio Building Code (4+ family and commercial): Formula A (building and HVAC together) = gross area x $143.68 x construction type factor x permit fee multiplier x 1.25; Formula B (building only) drops the 1.25; Formula C (HVAC only) applies x 0.25. The multiplier is 0.0019 for new buildings and additions and 0.0043 for entire-building, floor and fire-repair alterations, and new HVAC in an existing building uses 0.005. Construction type factors run 1.27 to 0.93 for A-2 assembly (restaurants and bars), 1.20 to 0.79 for B business, 0.97 to 0.63 for M mercantile and 1.22 to 0.87 for I-4 day care. The up-front payment for a new building, addition or whole-building alteration is $653.23 ($705.49 with the technology fee and state surcharge), and $653.23 is also the minimum building fee; the minimum building fee for minor alterations is $474.01 and for a kitchen exhaust hood $318.28. Totals include a 5 per cent technology fee and the Ohio Board of Building Standards surcharge of 3 per cent on OBC permits. A time extension is $100 each, and starting work without a permit adds a 200 per cent penalty to the permit fee.per permit, with time extensions available at $100 each; commercial plan review is assessed from the third review at $296.08 per hour, and a refund, where granted, is half the entire permit fee after deducting the up-front fee and the zoning certificate fee2026-09-30
Commercial Certificate of Occupancy (Ohio Building Code)Hamilton County Planning + Development, Division of Buildings + Inspections$189.62 per certificate for buildings and structures regulated by the Ohio Building Code — $204.79 with the state surcharge and technology fee included, per the ADMINISTRATIVE FEES paragraph of FEE_SCHEDULE_2026, effective 1 January 2026 as adopted by the Hamilton County Board of Commissionersissued once for the completed work; a Temporary Certificate of Occupancy for OBC work is $296.08 for the first 30 days and $148.05 for each additional 30 days, and a second temporary certificate, where one is required, is $588.29 then $296.082026-09-30
Electrical Permit and Inspection (performed by Inspection Bureau, Inc. for the county)Hamilton County Planning + Development, Division of Buildings + InspectionsThe county's development-process page states that electrical plan review and inspection are performed by Inspection Bureau, Inc. and that electrical permits must be applied for separately; no electrical fee is published on that page or on the Buildings + Inspections fee schedule, which prices building, HVAC and fire-protection work. Inspection Bureau, Inc. sets and collects its own charge, and the amount is obtained from it when the separate electrical application is made.per permit, alongside the county building permit for the same project2026-09-30

Fees shown as a range or formula are set that way by the issuing agency — we do not average them into a single number.

About each permit

Commercial Building Permit (Ohio Building Code)

Two things decide whether this record applies at all. The first is geography: Buildings + Inspections states that it 'is responsible for issuing building permits in the unincorporated townships of Hamilton County and in six contract jurisdictions', and the county's development-process page names them — 'Amberley Village, Elmwood Place*, Indian Hill, North Bend and Terrace Park*, and Wyoming*' — with the footnote '*Commercial permits only', so in Elmwood Place, Terrace Park and Wyoming the county issues the commercial permit but not the residential one. The division's own jurisdiction map, dated 05/22/2026, puts that in proportion: Cincinnati 79.72 square miles, individual municipalities 69.81, county commercial-only 2.88 and county full jurisdiction 260.19. Every other city and village runs its own building department. The second is sequence: the same page states that 'A Zoning Certificate from the local zoning authority is required before an application for a building permit can be submitted', and electrical work is separate because 'Electrical permits and electrical inspections are handled by Inspection Bureau, Inc.' The fee is computed rather than looked up, and a reader who budgets from a percentage of construction value will be wrong — the formula multiplies gross area by $143.68, then by a construction-type factor for the use group, then by a small permit fee multiplier, with an extra 1.25 where HVAC is included in the same permit. The use group matters as much as the size: a restaurant is A-2 assembly at 1.27 down to 0.93, a shop is M mercantile at 0.97 down to 0.63, an office or clinic is B business, and a childcare centre is I-4 at 1.22 down to 0.87. Below the formula sits a floor: $653.23 is both the up-front payment and the minimum building fee for a new building, an addition or a whole-building alteration, and $705.49 is that up-front figure with the 5 per cent technology fee and the 3 per cent state surcharge added. Smaller jobs have their own minimums — $474.01 for minor alterations as the Building Official determines them, and $318.28 for a kitchen exhaust hood, which is the line a restaurant fit-out meets most often. The penalty for skipping the permit is severe and stated on the schedule: the permit fee plus a 200 per cent penalty. Violations are separately punishable by a fine of not more than $300 per offence under ORC 307.37 and 307.99(C), rising to not more than $1,000 for offences against ORC Chapters 3781 and 3791.

Commercial Certificate of Occupancy (Ohio Building Code)

The certificate is the last gate before a business can open in the county's building jurisdiction, and it is cheap compared with what it depends on. The Buildings + Inspections fee schedule's administrative fees paragraph prices it directly: 'Buildings and structures regulated by the OBC - $189.62 ($204.79 with surcharge and technology fee included)'. Residential work under the Residential Code of Ohio is $58.44 ($61.94 with fees), and where a certificate of occupancy is not required a Certificate of Completion of Permit is $32.46. Occupying a commercial building without the certificate costs $588.29 on top of the certificate itself, and occupying without a temporary certificate carries the same $588.29 in addition to the temporary certificate fee — which is the most expensive mistake on this page, because it is the one a tenant makes by moving equipment or staff in a few days early. Two approvals outside the building department gate the certificate, and both should be started early. The county's development-process page states that 'Applicants must obtain a Sewer Tap and Inspection before a building Certificate of Occupancy can be issued', and that 'Applicants requiring a new or upgraded service must obtain a Water Tap and Inspection before a building Certificate of Occupancy can be issued' — the first through the Metropolitan Sewer District, the second through Greater Cincinnati Water Works, each with its own service exceptions. Electrical sign-off comes through Inspection Bureau, Inc. rather than the county. The certificate is issued for a use of a building or space, which matters on a change of tenant in the same use group, and a temporary certificate buys 30 days at a time while outstanding items are closed out.

Electrical Permit and Inspection (performed by Inspection Bureau, Inc. for the county)

This is the step that surprises people building out a unit in unincorporated Hamilton County: the electrical work does not go through the county at all. The county's own development-process page states that 'I.B.I. (Inspection Bureau, Inc.) reviews and inspects all electric plans on behalf of the Building and Inspections Division of the Planning and Development Department as well as the City of Cincinnati and over thirty other municipalities', and that electrical permits must be applied for separately from the building permit. The practical consequences are scheduling ones. The electrical application is a second filing with a second body, on its own timetable, and the county's building inspections and the Certificate of Occupancy depend on the electrical work being signed off, so a fit-out that treats electrical as part of the building permit loses time at the end of the job rather than the start. No electrical figure is published on the county's page or on the Buildings + Inspections fee schedule, which prices building, HVAC and fire-protection work only; the amount comes from Inspection Bureau, Inc. when the separate application is made. A restaurant adding hood and refrigeration circuits, a salon adding stations, a repair shop adding lifts and compressors and a childcare centre changing a unit's use will all meet this step in addition to the county permits recorded here.

Contact

Jurisdiction
Hamilton County
Phone
513-946-4550

Contact details are taken from the agency’s own site or its published fee schedule. Where we have not verified a phone number we leave it blank rather than guess.

Sources

Every fee and term above was read from one of these government pages on the date shown.

  1. Buildings + Inspections — the division's own index page: it issues building permits in the unincorporated townships of Hamilton County and in six contract jurisdictions, and links the current fee scheduleHamilton County, Ohio · primary source · retrieved 2026-09-30
  2. Buildings + Inspections FEE_SCHEDULE_2026 — effective 1 January 2026 as adopted by the Hamilton County Board of Commissioners: the OBC and RCO formulas, construction-type factors, up-front and minimum building fees, the CO/CC and TCO columns, the administrative fees and the penaltiesHamilton County, Ohio · primary source · retrieved 2026-09-30
  3. Development Process — the county's own page naming the six contract jurisdictions and the commercial-only footnote, the zoning certificate prerequisite, Inspection Bureau, Inc. for electrical review, and the sewer tap and water tap that must precede a Certificate of OccupancyHamilton County, Ohio · primary source · retrieved 2026-09-30
  4. Hamilton County Building Department Jurisdiction Map, dated 05/22/2026 — Cincinnati 79.72 sq mi, individual municipalities 69.81 sq mi, county commercial-only 2.88 sq mi and county full jurisdiction 260.19 sq miHamilton County, Ohio · primary source · retrieved 2026-09-30
  5. ORC 307.37 — county building regulations enforced within the unincorporated area, an existing structures code, regulations for participation in the national flood insurance program, drainage review, and the $300 per offence fineOhio Legislative Service Commission · primary source · retrieved 2026-09-30
  6. ORC Chapter 307 — the powers and duties of a board of county commissioners; its regulatory sections are 307.37 (county building code), 307.38 (county building inspector) and 307.39 (publication of building regulations)Ohio Legislative Service Commission · primary source · retrieved 2026-09-30

Other offices serving Hamilton County

The full permit list for this jurisdiction

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Commercial Compliance Hub publishes information, not legal advice. Requirements change — confirm anything you rely on with the issuing agency before you file.