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Home projects in South Carolina: costs, permits and rules

South Carolina Residential Code, based on the IRC. Charleston and Horry County enforce coastal wind and elevation rules plus historic review; upstate Greenville prices and permits like the interior Southeast.

Model reviewed August 2026

Cost index

-8%

vs national baseline

Permit fees

-10%

vs national baseline

Code

Statewide

one code, local enforcement

Population

5.4M

Charleston, Columbia

Who issues building permits in South Carolina?

Local dept., statewide code

Permits in South Carolina are issued by the city building department when the property is inside city limits, and by the county otherwise. The requirements come from south carolina residential code, based on the irc, which applies statewide.

Owner-builder: Homeowner permits allowed on owner-occupied property.

South Carolina project costs

Modeled from national baselines and the state cost index. Local pages refine these further.

Roof Replacement$9,000 – $30,300
AC Replacement$4,900 – $14,600
Fence Installation$2,200 – $10,300
Water Heater Replacement$1,100 – $5,000
Pool Installation$35,600 – $107,600
Window Replacement$7,100 – $32,300
Electrical Panel Replacement$1,800 – $6,400
Generator Installation$6,100 – $20,500
Solar Panel Installation$14,300 – $45,900
Kitchen Remodel$16,900 – $86,500

Project guides for South Carolina

Roof Replacement in South Carolina$9,000 – $30,300AC Replacement in South Carolina$4,900 – $14,600Fence Installation in South Carolina$2,200 – $10,300Water Heater Replacement in South Carolina$1,100 – $5,000Pool Installation in South Carolina$35,600 – $107,600Window Replacement in South Carolina$7,100 – $32,300Electrical Panel Replacement in South Carolina$1,800 – $6,400Generator Installation in South Carolina$6,100 – $20,500Solar Panel Installation in South Carolina$14,300 – $45,900Kitchen Remodel in South Carolina$16,900 – $86,500Bathroom Remodel in South Carolina$8,400 – $39,300Driveway Replacement in South Carolina$3,900 – $17,700Paver Patio & Walkway in South Carolina$3,300 – $14,900Deck Construction in South Carolina$5,100 – $26,200Shed Installation in South Carolina$1,700 – $11,200Impact Window Installation in South Carolina$8,600 – $40,100Garage Door Replacement in South Carolina$1,300 – $7,000Roof Repair in South Carolina$400 – $4,400Flooring Installation in South Carolina$2,300 – $18,700Home Addition in South Carolina$42,300 – $263,500Heat Pump Replacement in South Carolina$6,100 – $20,800Furnace Replacement in South Carolina$3,000 – $10,900Foundation Repair in South Carolina$2,600 – $29,900

Cities with local permit data in South Carolina

Charleston, SCCharleston CountyColumbia, SCRichland CountyNorth Charleston, SCCharleston CountyMount Pleasant, SCCharleston CountyRock Hill, SCYork CountyGreenville, SCGreenville CountySummerville, SCDorchester CountyMyrtle Beach, SCHorry County

South Carolina counties

Outside city limits the county issues the permit. 10 South Carolina counties are inventoried.

Greenville CountySeat: Greenville · 542,000 residentsCharleston CountySeat: Charleston · 416,000 residentsHorry CountySeat: Conway · 396,000 residentsRichland CountySeat: Columbia · 421,000 residentsSpartanburg CountySeat: Spartanburg · 350,000 residentsYork CountySeat: York · 300,000 residentsLexington CountySeat: Lexington · 302,000 residentsBerkeley CountySeat: Moncks Corner · 245,000 residentsBeaufort CountySeat: Beaufort · 199,000 residentsDorchester CountySeat: St. George · 168,000 residents
All South Carolina counties

South Carolina permit questions

Do you need a permit for home renovations in South Carolina?

South Carolina enforces a statewide code (South Carolina Residential Code, based on the IRC), so permit requirements are broadly consistent across the state, but the permit itself is issued by your city or county. Structural, electrical, plumbing, mechanical and envelope work almost always require one.

Can a homeowner pull their own permit in South Carolina?

Homeowner permits allowed on owner-occupied property. Owner-builder status usually makes you responsible for code compliance and for any unlicensed work performed on the property, and many jurisdictions restrict resale within a year of the permit.

Are home projects more expensive in South Carolina?

Our model puts South Carolina at 8% below the national baseline for installed residential work, with permit fees at -10% versus baseline. Charleston and Horry County enforce coastal wind and elevation rules plus historic review; upstate Greenville prices and permits like the interior Southeast.

Sources

Sources & verification

Model vintage August 2026. The links above are the issuing agencies' own pages — we publish them so you can confirm the current rule yourself, not as evidence that each fact on this page was re-checked with them today. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing, not quotes. Permit rules change; confirm with the building department before starting work.