Permit & Site Guide

Metal Building Permits in Lexington County, SC

Planning a barndominium, steel garage, workshop, or agricultural building in Lexington or anywhere in Lexington County? Here's what to expect on permits, setbacks, wind and snow loads, and HOA rules — plus a free, permit-ready quote from AAIRE Co.

Permit Required

Yes — Required

Lexington County requires permits for accessory and metal structures, though one-story detached storage buildings accessory to a one/two-family dwelling may be exempt; a site plan with setbacks is required when a permit applies.

Wind Zone

115 mph

Ultimate design wind speed — verify with engineer

Snow Load

8 psf

Ground snow load, minimum design

Typical Setbacks

Varies by zoning; a site plan showing building setbacks must accompany accessory-structure permit applications.

HOA Risk

Moderate

Moderate — Lake Murray communities and newer subdivisions near Irmo/Lexington often have HOAs; rural western county parcels are typically unrestricted.

Permit Contact

Lexington County Building Permits

803-785-8130

Pro Tip for Lexington County

A small detached storage shed may be exempt, but a larger or utility-served metal building isn't — bring a site plan with setbacks to Community Development so they can tell you which side of the line you're on.

Get a permit-ready quote for Lexington County

Every AAIRE Co. steel building is engineered to your county's 115 mphwind requirements, with stamped drawings included for permitting. Tell us about your project and we'll send a free quote and walk you through what Lexington County needs.

This guide provides general information based on publicly available county sources. Requirements change and vary by parcel, zoning district, and building use. Always verify current requirements directly with Lexington County before purchasing land or starting construction. AAIRE Co. serves customers nationwide and can help you navigate the process.