Building Setbacks & Zoning in Harrison County, MS (2026)

2 rules for unincorporated Harrison County, Mississippi.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Harrison County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Setback Rules

Harrison County's Unified Development Code sets district-by-district yard minimums in Table 416, and adds a stricter buffer rule at § 416.07: any non-residential use next to a residential district must keep a side yard of at least 25 feet and a rear yard of at least 50 feet, both jumping to 100 feet, screened by a 6-foot fence, when the adjoining use is light industrial.

Harrison County Yard Setback Buffer Rules

Some Restrictions

Harrison County Unified Development Code, § 416.07 (Yard Setbacks Adjacent to Residential Districts)

Side - The side yard building setback line on each side of the lot shall be not less than twenty-five (25) feet as measured from the side lot line to the nearest building or structure except in instances where a light industrial use abuts a residential district, in which case a minimum side yard of one hundred (100) feet shall be provided on the side adjacent to the residential district. Such s...

Full ordinance details →Official source ↗

Structure Height Limits

In unincorporated Harrison County, the Unified Development Code caps structures at 35 feet before extra review kicks in: any building that exceeds thirty-five feet requires a site plan and sign-off from the Harrison County Fire Marshal confirming local fire equipment and training can fight a fire on the site, per UDC Section 416.06.

Harrison County 35-Foot Height Trigger

Some Restrictions

Harrison County Unified Development Code, Art. IV, § 416.06 (as amended through Dec. 12, 2022)

Any structure which exceeds thirty-five (35) feet in height will require a site plan and approval from the fire marshal which states that the fire district has reviewed the plans and that the fire department's equipment and training can adequately fight a fire on the site.

Full ordinance details →Official source ↗

All Harrison County ordinances

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