Bolthole Index

Ottawa County, Oklahoma

Building permits, zoning and land rules in Commerce, Oklahoma

Commerce, Oklahoma requires a city permit before placing a mobile or manufactured home; we could not confirm the building-permit requirement for a site-built house.1 Commerce has its own zoning, separate from Ottawa County’s rules for unincorporated land.2 Septic construction authorization comes from Oklahoma DEQ, while Commerce prohibits camping or travel-trailer occupancy outside an authorized mobile home park.34

At a glance

Building permit
City placement permit required for mobile and manufactured homes; site-built house requirement unconfirmed1
Zoning
Commerce zoning applies inside city limits2
Septic permits
Oklahoma DEQ Authorization to Construct before installation or modification3
RV living
Camping or travel-trailer occupancy prohibited except in an authorized mobile home park4
Residential lot size
R-1A: 9,000 square feet; R-1: 6,000 square feet for a single-family dwelling56
Owner-builder electrical work
State license exemption for work on your own property is subject to local requirements7

Who to call

Building permits

Commerce City Administration

City contact for the manufactured-home placement building packet, fee schedule and questions about Commerce zoning and site-built construction.

(918) 675-4373

618 Commerce Ave., Commerce, OK 74339

Septic permits

Oklahoma DEQ On-Site Sewage Program

On-site sewage construction authorization, site review and installation approval in Commerce.

405-702-0100

Contact details are copied from each office’s official page and were checked against it on October 11, 2026.

Off-grid gear

Going off-grid in Commerce means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in Commerce, OK?

Commerce requires a permit issued by city administration before a mobile or manufactured home is placed anywhere within city limits.1 The Commerce placement application requires a properly completed building packet and payment of the fee in the city fee schedule.8 Ask Commerce City Administration for that packet and the current fee before arranging delivery.9 We could not confirm Commerce’s general building-permit requirement, inspection sequence or certificate-of-occupancy rule for a site-built house; ask city administration to identify the approvals for your proposed construction.9 Oklahoma’s adopted building codes remain minimum statewide standards, and municipalities may impose higher requirements.10

Who handles building and zoning questions in Commerce?

For Commerce’s manufactured-home placement permit, the ordinance names city administration as the issuing authority.1 Contact Commerce City Administration at (918) 675-4373 or 618 Commerce Ave., Commerce, OK 74339 to request the building packet and ask where to submit zoning questions.9 Ask the city to confirm the parcel’s zoning district, the proposed dwelling type and the current placement fee before buying a home to move onto the lot.28 Septic authorization is a separate DEQ responsibility; the city placement application does not replace DEQ’s Authorization to Construct for an on-site sewage system.83

Does Commerce have zoning, lot-size rules and setbacks?

Commerce has zoning, and the residential district matters when deciding whether a lot can accommodate your proposed home.2 Commerce’s R-1A low-density single-family district requires at least 9,000 square feet per dwelling and accessory building, with a minimum lot width of 75 feet at the front building line; a qualifying existing undersized lot may fall within the ordinance’s exception.5 Commerce’s R-1 general residential district requires 6,000 square feet for a single-family dwelling and accessory building.6 R-1A has a 25-foot minimum front yard, subject to the existing-development averaging provision; R-1 requires a 25-foot front yard and 5-foot side yards for one- and two-family dwellings.1112 R-1A improvement coverage is capped at 35%, while R-1 caps coverage at 60% on interior lots and 75% on corner lots.1314

How do septic permits work inside Commerce?

For a Commerce property using an on-site sewage system, Oklahoma DEQ administers the septic program rather than city administration.15 Before installing a new system or modifying an existing system, obtain DEQ’s Authorization to Construct; DEQ must first review the Report for On-Site Sewage.3 A new or modified system must be inspected and approved by DEQ, or installed, self-inspected and approved by a certified installer, before operation.16 Ask Commerce City Administration whether the particular property must connect to municipal sewer; we could not confirm the city’s connection requirement.9 Countywide soil ratings are context only: Ottawa County has 8.6% of soils rated not limited for conventional septic drain fields, so arrange a site evaluation rather than assuming a city lot can support one.17

Can you live in an RV or tiny home in Commerce?

Commerce prohibits occupying a camping or travel trailer temporarily or permanently while parked or stored inside city limits, except in a mobile home park authorized by city ordinance.4 That Commerce rule also rules out using a travel trailer on an ordinary private lot as temporary housing while building.4 We could not confirm a separate Commerce tiny-home occupancy rule, minimum dwelling floor area or accessory-dwelling approval; ask city administration how the proposed structure will be classified.9 If Commerce classifies the proposed dwelling as a mobile or manufactured home, the city placement permit is required before placement.1 An occupied manufactured home is deemed a permanent installation under Oklahoma’s installation rules.18

Building a home in Commerce: what are the steps?

  1. Ask Commerce City Administration to confirm city limits, the parcel’s zoning district and the approvals for your exact dwelling proposal.92
  2. Match the site plan to the Commerce district’s lot-area, setback and coverage rules before committing to the building footprint.5611121314
  3. For a mobile or manufactured home, submit the Commerce building packet and placement fee before moving the unit onto the property.81
  4. Confirm sewer availability with city administration; if using septic, obtain DEQ’s construction authorization before installation.93
  5. For a driveway onto a state highway, obtain ODOT’s approved Driveway Agreement before right-of-way work; inside city limits, city written approval is also required.19

For land outside Commerce, consult the Ottawa County guide: Ottawa County’s absence of countywide zoning does not remove Commerce’s municipal zoning.202

Watch-outs

  • Commerce’s travel-trailer occupancy prohibition covers temporary stays as well as permanent residence outside an authorized mobile home park.4
  • Commerce subdivision proposals, including manufactured-home parks and subdivisions subject to the flood-damage-prevention ordinance, must meet the city’s cross-referenced floodplain-development permit requirements.21
  • Oklahoma’s owner-property electrical license exemption is subject to local ordinances; ask Commerce City Administration about electrical permits and inspections before doing the work yourself.79

Sources

  1. Code of Ordinances: Chapter 8—Buildings and Construction, Sec. 8-78 (Commerce), quoted and re-checked
  2. Code of Ordinances: Chapter 44—Zoning, Sec. 44-88 (Commerce), quoted and re-checked
  3. On-Site Sewage Treatment (Oklahoma statewide rule), quoted and re-checked
  4. Code of Ordinances: Chapter 44—Zoning, Sec. 44-56 (Commerce), quoted and re-checked
  5. Code of Ordinances: Chapter 44—Zoning, Sec. 44-88 (Commerce), quoted and re-checked
  6. Code of Ordinances: Chapter 44—Zoning, Sec. 44-122 (Commerce), quoted and re-checked
  7. Oklahoma Statutes — Title 59, Professions and Occupations (Oklahoma statewide rule), quoted and re-checked
  8. Code of Ordinances: Chapter 8—Buildings and Construction, Sec. 8-78 (Commerce), quoted and re-checked
  9. Commerce City Administration (commerceokla.com)
  10. Oklahoma Statutes, Title 59 — Professions and Occupations (Oklahoma statewide rule), quoted and re-checked
  11. Code of Ordinances: Chapter 44—Zoning, Sec. 44-88 (Commerce), quoted and re-checked
  12. library.municode.com (Commerce), quoted and re-checked
  13. library.municode.com (Commerce), quoted and re-checked
  14. library.municode.com (Commerce), quoted and re-checked
  15. Environmental Complaints & Local Services (Oklahoma statewide rule), quoted and re-checked
  16. Oklahoma DEQ On-Site Sewage Program (oklahoma.gov)
  17. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  18. Title 765 Oklahoma Used Motor Vehicle and Parts Commission Rules and Regulations (Oklahoma statewide rule), quoted and re-checked
  19. Instructions for Driveway Permit Application (Oklahoma statewide rule), quoted and re-checked
  20. Ottawa County Board of Commissioners Meeting Minutes, June 11, 2012, quoted and re-checked
  21. Code of Ordinances: Chapter 17—Flood Damage Prevention, Sec. 17-83 (Commerce), quoted and re-checked

Written October 11, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

Answers from the rulebook for Commerce

Commerce’s own rules

  • Building permitLimited

    Placement of a mobile home or manufactured home on property within Commerce city limits.

    • A permit from city administration is required before placement.
    • The application requires a properly completed building packet and payment of the fee specified in the city fee schedule.
    “No mobile home or manufactured home shall be placed on any property within the city limits without first having obtained a permit issued by city administration.”
  • Local zoningPresent (with conditions)

    Land within Commerce city limits, including the R-1A low-density single-family residential district.

    • District-specific area and height regulations apply.
    “All lots and improvements within the R-1A district shall meet the following area and height requirements:”
  • Zoning districtsPartial

    Commerce zoning districts; the located official provisions identify at least R-1A and R-1 residential districts.

    • This finding does not establish a complete list of all Commerce zoning districts.
    “All lots and improvements within the R-1A district shall meet the following area and height requirements:”
  • Living in an RVProhibited

    Camping or travel trailers parked or stored within Commerce incorporated limits.

    • The prohibition has an exception for a mobile home park authorized under City ordinances.
    “A camping or travel trailer shall not be occupied either temporarily or permanently while it is parked or stored in any area within the incorporated limits of the city except in a mobile home park authorized under the ordinances of the city.”
  • Subdividing landRegulated (with conditions)

    Subdivision proposals, including manufactured-home parks and subdivisions, inside Commerce city limits where flood-damage-prevention regulations apply.

    • Proposal must meet the cross-referenced floodplain-development permit requirements and flood-damage-prevention provisions.
    • Proposals greater than 50 lots or five acres, whichever is lesser, require base-flood-elevation data if not otherwise provided under the cited sections.
    • Adequate drainage and flood-damage-minimizing public utilities and facilities are required.

    base flood elevation data threshold: greater than 50 lots or five acres, whichever is lesser (If data is not otherwise provided under Sec. 17-42 or Sec. 17-62(8).)

    “All proposals for the development of subdivisions including the placement of manufactured home parks and subdivisions shall meet floodplain development permit requirements of article III, section 17-43; article IV, section 17-63; and the provisions of article V of these flood damage prevention ordinances.”
  • Building in a floodplainRequired

    Subdivision-development proposals, including manufactured-home parks and subdivisions, inside Commerce city limits subject to the flood-damage-prevention ordinance.

    • Must meet the floodplain-development permit requirements cross-referenced in Sec. 17-83(b).
    “All proposals for the development of subdivisions including the placement of manufactured home parks and subdivisions shall meet floodplain development permit requirements of article III, section 17-43; article IV, section 17-63; and the provisions of article V of these flood damage prevention ordinances.”
  • Permit processPartial

    Mobile-home or manufactured-home placement permits inside Commerce city limits.

    • Submit a properly completed building packet.
    • Pay the permit fee in the amount provided in the city fee schedule.
    “Application for permit under this section shall be made by submitting a properly completed building packet and payment of a permit fee in the amount provided in the city fee schedule.”

Rules another office applies inside Commerce

Commerce does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

  • Minimum lot sizeSpecified

    Single-family dwellings in Commerce R-1 general residential district.

    • Two-family structures have a 3,500-square-foot-per-dwelling-unit allocation.

    minimum lot area: >= 6000 square feet (For each single-family dwelling and building accessory thereto.)

    “For each single-family dwelling, and building accessory thereto, there shall be a lot area of not less than 6,000 square feet.”
    One more reviewed finding on this topic
    • Specified — Each dwelling and accessory building in Commerce R-1A low-density single-family residential district.
      “For each dwelling, and building accessory thereto, there shall be a lot area of not less than 9,000 square feet.”
  • SetbacksSpecified

    One- and two-family dwellings in Commerce R-1 general residential district.

    • A corner lot requires a 10-foot street-side setback.
    • Rear yard is 20 feet or 20 percent of lot depth, whichever is smaller.

    minimum front yard: >= 25 feet (One- and two-family dwellings.) · minimum side yard: >= 5 feet (Both sides for one- and two-family dwellings.)

    “The minimum depth of the front yard shall be 25 feet for one and two-family dwellings and 20 feet for other uses.”
    One more reviewed finding on this topic
  • Lot coverageSpecified

    Lots in Commerce R-1 general residential district.

    • Limit differs for interior and corner lots.

    maximum coverage interior lot: <= 60 percent (Interior lots.) · maximum coverage corner lot: <= 75 percent (Corner lots.)

    “The maximum coverage of any lot in the R-1 district shall not exceed 60 percent of the area for interior lots or 75 percent of the area for corner lots.”
    One more reviewed finding on this topic
    • Specified — Lots in Commerce R-1A low-density single-family residential district.
      “Not more than 35 percent of the lot area shall be covered with improvements.”
  • Building heightSpecified

    Dwelling structures in Commerce R-1 general residential district.

    • Structures for purposes other than dwelling have a 20-foot limit.

    maximum dwelling height: <= 25 feet (Above mean sea elevation of the lot.)

    “No improvement or structure to be occupied as a dwelling shall exceed 25 feet in height above mean sea elevation of the lot.”
    One more reviewed finding on this topic

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Commerce or Ottawa County directly.

  • Owner-builder exemption — Owner-builder work inside Commerce city limits.
  • Building code adopted — Building-code adoption for land inside Commerce city limits.
  • Inspections — Building inspections inside Commerce city limits.
  • Certificate of occupancy — Certificates of occupancy inside Commerce city limits.
  • Minimum dwelling size — Dwelling floor-area minimums inside Commerce city limits.
13 more unanswered
  • Camping on your land
  • Tiny homes
  • Accessory dwellings
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Driveway access
  • Short-term rentals
  • Permit fees

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Unanswered questions are usually a sign that Commerce publishes no rule on the point, not that none exists. Ottawa County’s page lists the county offices to call.

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