Accessory Structures in Jenks, OK: What Residents Actually Need to Know

If you live in Jenks or are thinking about moving there, accessory structures are one of those things you probably won't think about until they affect you directly. Jenks has 4 specific rules on the books covering different aspects of accessory structures, and some of them might surprise you.

Carport Rules

The Jenks Unified Development Ordinance defines a carport in Section 16-11-3 as a permanent roofed structure permanently open on at least two sides for private passenger vehicles. Carports with a permanent foundation are regulated as accessory buildings under UDO Section 16-5-12(A), which limits them to one per lot, caps floor area based on lot size, and requires a minimum five-foot setback from rear yard lot lines and ten feet from the principal building.

Key details: Definition: UDO Sec. 16-11-3. Accessory Standards: Sec. 16-5-12(A). Per-Lot Limit: 1 accessory building. Setback (rear yard): 5 feet from lot lines. Sep. From Primary: 10 ft (5 ft if 1-hr rated).

Building a carport without a building permit, exceeding the per-lot or square-footage caps in UDO Section 16-5-12(A), or placing one closer than five feet to a lot line or ten feet to the principal building, violates Chapter 16 of the Jenks UDO. The Jenks Building Department and Planning Department can issue stop-work orders, require removal or after-the-fact permitting, and pursue municipal-court fines under the City Code's general penalty provisions for UDO violations.

Shed Rules

Jenks Zoning Code allows detached accessory buildings in RE and RS Residential Districts in the rear yard, covering no more than 20% of the rear yard area. Building permits may be required under the adopted building code (Ch. 4, Art. 1). Setback requirements vary by zoning district. Contact Building Inspections for specific permit requirements.

Key details: Max Coverage: 20% of rear yard. Location: Rear yard. Permit: May be required. Building Code: Ch. 4, Art. 1.

Unpermitted structure: retroactive permit with penalty. Non-compliant setback: modification or removal.

ADU Rules

Jenks Zoning Code addresses accessory structures in RE and RS Residential Districts. Detached accessory buildings may be located in a rear yard provided they do not cover more than 20% of the rear yard area. ADU provisions are governed by the UDO. Contact the Planning Department for specific ADU eligibility and requirements in your zoning district.

Key details: Max Coverage: 20% of rear yard. Location: Rear yard only. Zoning: RE and RS districts. Contact: Planning Department.

Unpermitted ADU: standard building code enforcement. May require demolition or legalization. Occupying unpermitted dwelling: code violation.

Garage Conversions

Garage conversions in Jenks require a building permit under the adopted building code (Ch. 4, Art. 1). The conversion must meet code standards for habitable space including egress, ventilation, and electrical. ADU conversions are subject to UDO provisions and may require special approval. Contact Building Inspections for specific requirements.

Key details: Permit: Building permit required. Building Code: Ch. 4, Art. 1. ADU Use: Subject to UDO provisions. Contact: Building Inspections.

Unpermitted conversion: building code enforcement. Must bring to code or restore. Safety violations: immediate correction.

The Bottom Line

Jenks's accessory structures rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Jenks is broadly strict or permissive.

All of the above reflects Jenks's municipal code as of our last review. If you need specifics on fines, exemptions, or filing requirements, the detailed ordinance pages linked above have the full breakdown.