Definitions

A Basement Is Below Grade, but It Becomes a Story If More Than Half of It Is Above Grade Plane

When does a basement count as a story under IRC 2024?

R202

A Dwelling Unit Provides Independent Living Facilities Including Sleeping, Cooking, and Sanitation

What qualifies as a dwelling unit under IRC 2024?

R202

A Townhouse Is a Single-Family Dwelling That Shares Fire-Rated Walls but Has Its Own Exterior Access

What is the IRC 2024 definition of a townhouse?

R202

An Accessory Structure Is a Detached Building Subordinate to the Main Dwelling on the Same Lot

What is an accessory structure under IRC 2024?

R202

Grade Plane Is the Average Finished Ground Level at the Building Perimeter

What is grade plane under IRC 2024 and why does it matter?

R202

Habitable Space Is Any Room Used for Living, Sleeping, Eating, or Cooking

What qualifies as habitable space under IRC 2024?

R202

Listed Equipment Has Been Tested by a Recognized Lab; Labeled Equipment Carries That Lab’s Mark

What is the difference between listed and labeled equipment under IRC 2024?

R202

The Building Official Is the Authority Having Jurisdiction Over Code Enforcement and Interpretation

Who is the building official under IRC 2024 and what powers do they have?

R202