Bolthole Index

McClain County, Oklahoma

Zoning, building permits and septic rules in Blanchard, Oklahoma

Blanchard is a city in McClain County, Oklahoma. Blanchard adopts its own zoning, so inside its limits Blanchard’s rules apply, not the county’s. 14 rules below are quoted from official sources and independently re-checked, most recently on November 6, 2026. Rules for unincorporated land are on the McClain County page.

Answers from the rulebook for Blanchard

Blanchard’s own rules

  • Building permitLimited

    Accessory buildings used with the principal use in the S-1 Suburban District inside Blanchard.

    • This finding addresses S-1 accessory buildings only; state and associated trade fees apply.

    accessory-building permit fee: 25 USD (plus state fees and associated electrical, plumbing, mechanical, and other trade fees)

    “Building permits will be required for the construction of accessory buildings used in connection with the principal use of the premises for a nominal fee of twenty-five dollars ($25.00) plus state fees and associated trade fees (ie: electrical, plumbing, mechanical, etc.).”
  • Local zoningPresent (with conditions)

    Land within Blanchard city limits.

    • The city assigns zoning classifications upon annexation; regulations differ by district.
    “For the purposes of promoting the health, safety, and general welfare of the residents and visitors of the city of Blanchard, Oklahoma, the city council is empowered to regulate and restrict the height, number of stories, and size of structures; the percentage of lot that may be occupied; the size of yards and other open spaces; the density of population and the location and use of structures and land.”
  • Zoning districtsPublished (with conditions)

    Zoning districts inside Blanchard city limits.

    • District regulations may differ by district; the cited code includes S-1, A-1, R-1, R-2, R-3, and R-E district regulations.
    “SPECIFIC DISTRICT REGULATIONS DIVISION I S-1 “SUBURBAN DISTRICT” § 21-701 General description. § 21-702 Uses permitted. § 21-703 Area and height regulations.”
  • Subdividing landRegulated (with conditions)

    Subdivision plats and replats within Blanchard city limits.

    • Final city-council approval is required before filing with the McClain County clerk; the plat must first be submitted for planning-commission review.
    “If the subdivision plat or re-plat is located within the corporate limits of the city of Blanchard, Oklahoma, final approval, prior to the filing of said plat or re-plat with the McClain County clerk, shall be obtained from the city council of Blanchard, Oklahoma.”
  • Building in a floodplainRequired

    Development in areas of special flood hazard within Blanchard city limits in McClain or Grady County.

    • The article applies to all city special-flood-hazard areas; floodplain development requires a development permit, and the city manager administers the regulations.
    “The article shall apply to all areas of special flood hazard with the jurisdiction of the city of Blanchard. [...] A development permit shall be required to ensure conformance with the provisions of this article.”
  • Permit feesPublished (with conditions)

    Rezoning applications inside Blanchard city limits.

    • No application fee is assessed for rezoning property from the S-1 district.

    rezoning application fee: 100 USD (no application fee for rezoning from S-1 zoning)

    “All applications, except those seeking an amendment from S-1 zoning, shall be accompanied by the payment of a fee of one-hundred ($100.00) dollars to cover the costs of notice and posting and administrative review. There shall be no application fee assessed for the rezoning of property from S-1 district.”
  • Permit processPartial

    Floodplain development-permit applications inside Blanchard city limits.

    • Applies in the ordinance's special flood-hazard areas; application may include scale plans and specified elevation, floodproofing, and drainage information.
    “Application for a development permit shall be presented to the floodplain administrator on forms furnished by him/her and may include, but not be limited to, plans in duplicate drawn to scale showing the location dimensions, and elevation of proposed landscape alterations, existing, and proposed structures, and the location of the foregoing in relation to areas of special flood hazard.”

Rules another office applies inside Blanchard

Blanchard 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

    Lots in the A-1 Agricultural District inside Blanchard city limits.

    • Street dedications are included in the acreage calculation; one principal dwelling is allowed per lot.

    minimum lot area: >= 2.5 acres (including street dedications)

    “All lots shall have not less than two-and-one-half (2½) acres of land including street dedications, and not more than one (1) principal dwelling shall be placed on any one (l) lot.”
  • SetbacksSpecified

    Structures in the A-1 Agricultural District inside Blanchard city limits.

    • Accessory buildings may have a 10-foot side yard; the 30-foot side-yard rule applies to principal structures.

    front yard setback: >= 50 feet · principal-structure side yard setback: >= 30 feet (accessory buildings may have side yards of not less than 10 feet) · rear yard setback: >= 50 feet

    “All structures shall have not less than a fifty (50) foot front yard setback. All principal structures shall have not less than a thirty (30) foot side yard setback. Accessory buildings may have side yards of not less than ten (10) feet. All structures shall have not less than a fifty (50) foot rear yard setback.”
  • Lot coverageSpecified

    Lots in the A-1 Agricultural District inside Blanchard city limits.

    • Paved areas are not improvements for this coverage calculation.

    maximum lot coverage: <= 20 percent (paved areas are excluded)

    “Not more than twenty percent (20%) of the lot area shall be covered with improvements. Paved areas are not considered improvements within the meaning of this provision.”
  • Building heightSpecified

    Improvements and structures in the A-1 Agricultural District inside Blanchard city limits.

    • Transmission towers and antennas are excepted.

    maximum building height: <= 35 feet (except transmission towers and antennas)

    “No improvement or structure shall exceed thirty-five (35) feet in height above the mean elevation of the lot except for transmission towers and antennas.”
  • Manufactured homesLimited

    Mobile homes or manufactured housing in the A-1 Agricultural District inside Blanchard city limits.

    • The lot must contain at least 10 acres.

    minimum lot area for mobile home or manufactured housing: >= 10 acres

    “No permit shall be issued for the location of a mobile home or manufactured housing on a lot of less than ten (10) acres.”
  • Accessory dwellingsLimited

    Guest houses and quarters for persons employed in connection with a principal permitted use in the S-1 Suburban District inside Blanchard city limits.

    • The accessory use must be incidental to a listed S-1 principal use.
    “Accessory buildings or uses incidental to the foregoing principal uses, including home occupations as defined in this ordinance, private garages, guest houses, tool houses, private greenhouses, private dog kennels, stables, roadside stands and quarters for persons employed in connection with the principal use of the premises.”
  • Shed and accessory-building permit exemptionNot available

    Accessory buildings in the S-1 Suburban District inside Blanchard city limits.

    • This finding is limited to S-1 accessory buildings used in connection with the principal use; state and associated trade fees also apply.

    permit fee: 25 USD (plus state fees and associated trade fees)

    “Building permits will be required for the construction of accessory buildings used in connection with the principal use of the premises for a nominal fee of twenty-five dollars ($25.00) plus state fees and associated trade fees (ie: electrical, plumbing, mechanical, etc.).”

Still unanswered

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

  • Owner-builder exemption — Owner-built homes inside Blanchard city limits.
  • Building code adopted — Construction inside Blanchard city limits.
  • Inspections — Building construction inside Blanchard city limits.
  • Certificate of occupancy — Occupancy of structures inside Blanchard city limits.
  • Minimum dwelling size — Dwellings inside Blanchard city limits.
12 more unanswered
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Driveway access
  • Short-term rentals

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 Blanchard publishes no rule on the point, not that none exists. McClain County’s page lists the county offices to call.

← All of McClain County: county rules, score and offices