Richland County

Home permits and project costs in Columbia, SC

Inland South Carolina sees extreme summer heat without coastal wind requirements, so cooling and attic work outrank opening protection.

Verified August 2026

Local cost index

-7%

vs national average

Permit fee index

-4%

vs national baseline

Population

137,300

Homeownership

46%

Do you need a permit in Columbia?

For most structural work, yes

Columbia enforces south carolina residential code, based on the irc through Richland County. Roofing, electrical, plumbing, structural, pools and most exterior additions require a permit and inspection. Cosmetic work — paint, flooring, cabinet swaps — generally does not.

Project costs in Columbia

National baselines adjusted by the local labor and materials index.

Project	Typical cost	Permit	Deep pages
Roof Replacement	$9,000 – $30,400	required	Cost·Permit
AC Replacement	$4,900 – $14,700	required	Cost·Permit
Fence Installation	$2,300 – $10,300	usually required	Cost·Permit
Water Heater Replacement	$1,100 – $5,100	required	Cost·Permit
Pool Installation	$35,800 – $108,400	required	Cost·Permit
Window Replacement	$7,200 – $32,500	required	Cost·Permit
Electrical Panel Replacement	$1,800 – $6,400	required	Cost·Permit
Generator Installation	$6,100 – $20,700	required	Cost·Permit
Solar Panel Installation	$14,400 – $45,900	required	Cost·Permit
Kitchen Remodel	$17,000 – $86,700	conditional	Cost·Permit
Bathroom Remodel	$8,500 – $39,400	conditional	Cost·Permit
Driveway Replacement	$3,900 – $17,800	usually required	Cost·Permit
Paver Patio & Walkway	$3,300 – $15,000	conditional	Cost·Permit
Deck Construction	$5,200 – $26,300	required	Cost·Permit
Shed Installation	$1,700 – $11,200	conditional	Cost·Permit
Whole-House Repipe	$4,200 – $14,900	required	Cost·Permit
EV Charger Installation	$800 – $3,900	required	Cost·Permit
Hurricane Shutter Installation	$3,000 – $17,000	required	Cost·Permit
Pool Enclosure / Screen Cage	$8,500 – $39,600	required	Cost·Permit
Septic System Replacement	$7,100 – $26,500	required	Cost·Permit
Impact Window Installation	$8,600 – $40,200	required	Cost·Permit
Exterior Door Replacement	$800 – $6,100	usually required	Cost·Permit
Garage Door Replacement	$1,300 – $7,100	required	Cost·Permit
Siding Installation	$7,500 – $35,800	usually required	Cost·Permit
Stucco Repair	$800 – $15,000	conditional	Cost·Permit
Soffit & Fascia Replacement	$1,700 – $10,400	conditional	Cost·Permit
Gutter Installation	$800 – $6,100	rarely required	Cost·Permit
Roof Repair	$400 – $4,500	conditional	Cost·Permit
Flat Roof Replacement	$5,700 – $26,500	required	Cost·Permit
Attic Insulation	$1,100 – $7,100	rarely required	Cost·Permit
Ductwork Replacement	$2,400 – $11,400	required	Cost·Permit
Mini Split Installation	$2,300 – $11,900	required	Cost·Permit
Flooring Installation	$2,300 – $18,700	rarely required	Cost·Permit
Tile Installation	$1,700 – $14,900	rarely required	Cost·Permit
Interior Painting	$1,400 – $8,800	rarely required	Cost·Permit
Exterior Painting	$2,600 – $13,900	rarely required	Cost·Permit
Drywall Repair	$300 – $4,200	rarely required	Cost·Permit
Kitchen Cabinet Refacing	$4,200 – $18,600	rarely required	Cost·Permit
Countertop Replacement	$2,100 – $11,400	rarely required	Cost·Permit
Tub to Shower Conversion	$3,300 – $15,000	usually required	Cost·Permit
Sod Installation	$800 – $6,600	rarely required	Cost·Permit
Irrigation System Installation	$2,100 – $9,400	conditional	Cost·Permit
Tree Removal	$400 – $5,100	conditional	Cost·Permit
Outdoor Kitchen	$5,600 – $42,200	usually required	Cost·Permit
Seawall Repair	$7,600 – $89,700	required	Cost·Permit
Dock Construction	$8,500 – $80,200	required	Cost·Permit
Well Installation	$5,200 – $23,500	required	Cost·Permit
Mold Remediation	$1,400 – $13,900	conditional	Cost·Permit
Water Softener Installation	$1,100 – $6,100	usually required	Cost·Permit
Home Addition	$42,600 – $265,200	required	Cost·Permit

Columbia permitting basics

Jurisdiction	Columbia, Richland County
Building department	Official site
Permit portal	Apply online
Owner-builder permits	Homeowner permits allowed on owner-occupied property
Contractor verification	Verify any license with South Carolina LLR Building Codes Council before signing

Sources

Sources & verification

Last verified August 2026. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing — they are not quotes. Permit rules change; confirm with the building department before starting work.