Irmo, South Carolina Building Permit Guide

Building permits in the Town of Irmo are issued by CC&I Services, the Town’s third-party permitting and inspection service, through the Irmo iWorQ portal, after the Town of Irmo issues a zoning permit for the project. From July 1, 2026 a home project costs $5.10 per $1,000 of value (minimum $55) plus a 10% plan review fee.

What requires a permit in Irmo?

Most projects need two approvals: a Town of Irmo zoning permit and a CC&I building permit.

Kitchen hood replacements go to the Irmo Fire Marshal (803-798-4979).

Who issues building permits in Irmo?

Irmo straddles Lexington and Richland counties, but the county line does not change who permits a property inside town limits. The Town handles zoning, business licenses and planning; CC&I Services issues building permits and certificates of occupancy and performs the inspections for the whole town. Land outside the town is permitted by Lexington County or Richland County.

Irmo permit applications

The Irmo iWorQ portal, which CC&I runs for the Town, holds separate applications for commercial plan review, building, residential building, mechanical, electrical, plumbing, fire, site, demolition, encroachment and occupancy permits. The same portal is used to resubmit plans, upload documents and request inspections. CC&I processes permit requests that arrive after 4:00 p.m. on the next business day.

• Residential Disclosure Form, for owners acting as their own builder.
• Permit Agent Authorization Form, for someone applying on a contractor’s behalf.
• New Commercial Construction C/O Form, for the certificate of occupancy on a new commercial building.

Every new home needs a plan review, so submit the plans with the permit application. Commercial projects need a plan review application with plans before any permit is issued, and CC&I typically returns comments 10 business days after the review fee is paid.

Irmo permit fees

CC&I’s Town of Irmo building permit fee schedule took effect on July 1, 2026, replacing the CC&I rates still shown in the Town’s FY 2025-26 master fee schedule. New construction is valued with CC&I’s current Building Valuation Data chart; other work is priced on the contract amount, and a signed contract is required.

For a $300,000 house, the permit is 300 × $5.10, or $1,530, and residential plan review adds $153. A $300,000 commercial job pays $995.75 plus 200 × $4.60, or $1,915.75, before its 50% plan review fee. Cancelling or refunding a permit costs a $45 administrative fee.

The Town’s own fees are separate: $50 for a zoning permit, $25 for a tree removal application with mitigation at $75 per caliper inch, and sediment control and drainage plan submittal fees from $50 for an acre or less to $400 for over 100 acres.

Electrical, plumbing and mechanical permits

CC&I issues electrical, mechanical and plumbing permits for Irmo, each through its own application in the Irmo iWorQ portal. Work other than new construction, including trade jobs, is priced on the signed contract amount under the residential or commercial rates above.

Replacing a commercial kitchen hood is handled by the Irmo Fire Marshal rather than CC&I.

How to get a building permit in Irmo

Inspections in Irmo

Search for the permit in the Irmo iWorQ portal and choose Request An Inspection. Requests received before 4 p.m. are scheduled for the next business day. CC&I performs the inspections and issues the certificate of occupancy.

The fee schedule charges $75 for second and later inspections of the same work. A permit expires 180 days after it is issued or after the last inspection; a renewal or update costs $60.

South Carolina building code

Every South Carolina county and municipality enforces the 2021 South Carolina Building Codes, in force since 1 January 2023; the 2024 editions take effect statewide on 1 January 2027, and the energy code stays the 2009 International Energy Conservation Code. South Carolina building codes

Irmo permit search and official resources

These are the primary sources behind this guide. Codes, fee schedules and procedures change — confirm the position for your filing date.

• Town of Irmo licenses and permits
• Town of Irmo planning and zoning
• Town of Irmo master fee schedule FY 2025-26
• CC&I Services: Irmo building safety page
• Irmo building permit fee schedule (July 1, 2026)
• Irmo iWorQ permit portal

Irmo permit FAQs

Who issues building permits in Irmo?

CC&I Services, the Town’s third-party permitting and inspection service, for every property in town regardless of county. The Town of Irmo issues the zoning permit.

How much is a building permit for a house in Irmo?

$5.10 per $1,000 of value, minimum $55, plus a plan review fee of 10% of the permit. A $300,000 house pays $1,530 plus $153.

Do I need a permit for a deck, shed or fence in Irmo?

All three need a Town zoning permit, and a deck also needs a CC&I building permit.

Do I need a permit to replace a roof?

Yes. Roofing is on the Town’s list of work that needs a CC&I building permit.

How do I schedule an inspection?

Request it in the Irmo iWorQ portal before 4 p.m. for the next business day.

How long does commercial plan review take?

CC&I typically returns review comments 10 business days after the plan review fee is paid.

Simplify Irmo permitting with Alliance Permitting

Alliance Permitting is a permit documentation and submission company in South Carolina. We prepare your paperwork, file it correctly and coordinate with the permitting authority through issuance. We are not a contractor and we do not perform licensed plan review or inspections; that work stays with your licensed team and the jurisdiction.

This guide is provided by Alliance Permitting for general information about Irmo permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.