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Codes, exemptions & field inspections

Build to the adopted code. Verify every exception.

This guide translates the available agency record into a preconstruction checklist for structural scope, minor work, and inspection release. The adopted code and the issuing official control when a field condition is disputed.

Regulatory framework

The code baseline for Lexington County.

Lexington County applies the current South Carolina mandatory code editions in the unincorporated county and specified participating municipalities. For 2026 this means the 2021 International Building, Residential, Mechanical, Plumbing, Fire and Fuel Gas codes with South Carolina amendments, and the 2020 National Electrical Code with South Carolina amendments; applicable accessibility, energy, existing-building and other referenced standards also apply under the state code cycle.

Inspection lane

Schedule inspections through the BluePrince portal, or contact Building Inspections at 803-785-8130 or BuildingInspections@lexingtoncounty.sc.gov with the permit number, inspection type, desired date and contact information. The county's residential guidance lists footing, utilities-under-slab, slab, rough-in, additional inspections as needed and final inspection; the permit holder should generally give one business day's notice. Commercial guidance states a 4:00 p.m. weekday cutoff for next-day inspections.

Minor-work playbook

Understand what may be exempt—and what is not.

Ordinary repairs and maintenance; fences; retaining walls unless supporting a surcharge; water tanks; sidewalks, driveways and patios; painting, papering, tiling, carpeting, cabinets and similar cosmetic finish work; swings and playground equipment accessory to a one- or two-family dwelling; one-story detached storage structures accessory to a one- or two-family dwelling up to 200 square feet; agricultural or nursery shade-cloth structures without service systems; exterior-wall-supported window awnings; and movable cases, counters or partitions no higher than 5 feet 9 inches. Zoning, floodplain and land-disturbance approvals may still be required.

Field rule

A permit exemption generally addresses one narrow construction trigger. It does not automatically waive zoning, land-use, floodplain, shoreline, fire, energy, electrical, utility, septic, or right-of-way requirements. Obtain written confirmation when the project involves a new structure, structural alteration, change in occupancy, or concealed work.

Inspection pipeline

Keep the work visible at every release point.

  1. 1

    Request with lead time

    Schedule inspections through the BluePrince portal, or contact Building Inspections at 803-785-8130 or BuildingInspections@lexingtoncounty.sc.gov with the permit number, inspection type, desired date and contact information. The county's residential guidance lists footing, utilities-under-slab, slab, rough-in, additional inspections as needed and final inspection; the permit holder should generally give one business day's notice. Commercial guidance states a 4:00 p.m. weekday cutoff for next-day inspections.

  2. 2

    Preserve access

    Do not cover framing, reinforcement, wiring, piping, damp-proofing, or life-safety work until the required inspection has been completed and documented.

  3. 3

    Close the record

    Retain the approved plans, inspection approvals, correction responses, and final certificate or occupancy release with the property file.

Contractor verification

Verify the builder before the contract is signed.

Use the state licensing system to verify active registration, trade credentials, bond status, and liability coverage where available. Match the legal business name to the proposal and permit application.

Verify contractor ↗

Planning reference

Keep the parcel rules beside the building plans.

A building permit is only one part of statutory compliance. Check the local zoning, ordinance, map, or land-use reference before finalizing setbacks, height, lot coverage, access, drainage, or accessory structure placement.

Open planning reference ↗

Source trail

Official sources for this profile

Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.

Agency websiteOpen official source ↗Permit portalOpen official source ↗Application instructionsOpen official source ↗Fee scheduleOpen official source ↗Planning or zoning referenceOpen official source ↗Contractor license lookupOpen official source ↗

Project questions

Frequently asked questions for Lexington County

Who handles permitting for this jurisdiction?

This record is marked Municipal Fallback. Confirm whether a city, state agency, or other local authority controls the parcel before filing.

How should I begin an application?

Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact 803-785-8130.

How long might review take?

Commercial plan review may take up to three weeks; no standard residential timeline was published in the reviewed county materials.

How are inspections scheduled?

Schedule inspections through the BluePrince portal, or contact Building Inspections at 803-785-8130 or BuildingInspections@lexingtoncounty.sc.gov with the permit number, inspection type, desired date and contact information. The county's residential guidance lists footing, utilities-under-slab, slab, rough-in, additional inspections as needed and final inspection; the permit holder should generally give one business day's notice. Commercial guidance states a 4:00 p.m. weekday cutoff for next-day inspections.

Which codes and exemptions should I review?

Lexington County applies the current South Carolina mandatory code editions in the unincorporated county and specified participating municipalities. For 2026 this means the 2021 International Building, Residential, Mechanical, Plumbing, Fire and Fuel Gas codes with South Carolina amendments, and the 2020 National Electrical Code with South Carolina amendments; applicable accessibility, energy, existing-building and other referenced standards also apply under the state code cycle. Ordinary repairs and maintenance; fences; retaining walls unless supporting a surcharge; water tanks; sidewalks, driveways and patios; painting, papering, tiling, carpeting, cabinets and similar cosmetic finish work; swings and playground equipment accessory to a one- or two-family dwelling; one-story detached storage structures accessory to a one- or two-family dwelling up to 200 square feet; agricultural or nursery shade-cloth structures without service systems; exterior-wall-supported window awnings; and movable cases, counters or partitions no higher than 5 feet 9 inches. Zoning, floodplain and land-disturbance approvals may still be required.

Field sequencing matters

The inspector needs to see the work at the right moment.

Code compliance is not only a plan-review exercise. Footings, reinforcement, framing, fireblocking, wiring, piping, insulation, weather protection, and life-safety systems each have points where the work must remain accessible. Build the inspection calendar into the trade schedule instead of treating it as a final administrative step.

When a project qualifies for a narrow minor-work exemption, keep a written explanation of why it qualifies and confirm that related zoning, utility, fire, energy, or environmental rules do not create a separate approval requirement.

Closeout file

Keep the approved plan set, inspection approvals, correction responses, contractor license verification, final certificate, and any occupancy release together. A clean record protects the owner, builder, lender, insurer, and future buyer.