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Rapid City, SD Accessory Structures: Shed & Carport Rules (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Shed permit rules in Rapid City, SD, also referred to as storage shed, backyard shed, or accessory building regulations, set size limits, setbacks, and when a building permit is required.

Key Facts

Permit-exempt shed size
120 square feet or less
Exempt shed type
One-story detached tool/storage shed
Larger sheds
Require § 15.04.150 building permit
Zoning status
Permitted accessory structure, § 17.50.210
Unpermitted penalty
Double fee plus general penalty

Summary

Rapid City exempts small accessory sheds from the building permit requirement but treats larger ones like any other structure. Under Rapid City Municipal Code § 15.04.160, a one-story detached tool or storage shed needs no building permit as long as its floor area does not exceed 120 square feet. Zoning separately lists a shed for storing maintenance or recreation equipment as a permitted accessory structure for dwellings under § 17.50.210.

A. A building permit shall not be required for the following: 1. Building: a. One-story detached accessory structures used as tool and storage sheds, playhouses and similar uses, provided the floor area does not exceed 120 square feet; ... Accessory uses shall be permitted as specified in § 17.50.200, and such accessory uses shall be applicable to the principal use and shall include, but not be limited to the following: A. For dwellings: ... 7. Shed for the storage of maintenance or recreation equipment used on the premises; and

Full Breakdown

150 like any other structure. B states that exemption from the permit requirements shall not be deemed to grant authorization for work done in violation of the title or any other city ordinance. 210 lists a shed for the storage of maintenance or recreation equipment used on the premises as a permitted accessory use for a dwelling, grouped alongside a private garage or carport, a greenhouse, and a private swimming pool and bathhouse. 200 that it be customarily incidental to, subordinate to, and in service of the principal use on the lot, and to whatever yard, setback and coverage limits apply in the property's zoning district.

Violations & Fines

Building a shed larger than 120 square feet, or any shed at all, without first obtaining the required permit is unlawful under § 15.04.300 and subjects the owner or builder to the city's general penalty, § 1.12.010: a fine of $1 to $500, up to 30 days in jail, or both, with each day of the violation counted separately. If a permit is later obtained for previously unpermitted shed construction, the owner must pay double the normal permit fee under § 15.04.300.C, absent a proven emergency.

Frequently Asked Questions

Do I need a permit for a backyard shed in Rapid City?
Not if it is a one-story detached tool or storage shed of 120 square feet or less; § 15.04.160 of the Rapid City Municipal Code exempts sheds that size from the building permit requirement. A shed larger than 120 square feet needs a building permit from the Building Official under § 15.04.150.
Is a shed a legal accessory use on a Rapid City residential lot?
Yes. Rapid City Municipal Code § 17.50.210 lists a shed for storing maintenance or recreation equipment used on the premises as a permitted accessory structure for dwellings, alongside uses like a private garage, greenhouse, or swimming pool and bathhouse.
Does exempting a shed from the permit exempt it from the zoning code too?
No. Section 15.04.160.B says exemption from the building permit does not authorize work that violates the title or any other city ordinance, so the shed still must meet the accessory-use, setback and yard standards that apply in its zoning district.

Sources & Official References

Other rules in Rapid City

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How Rapid City compares: Shed Permit Requirements by City·Compare Rapid City to another location·View the South Dakota accessory structures overview

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