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Search the building code.

Every 2024 IRC section and the IBC as it loads, by number or topic, plus the local rules for your city. Free to search.

Detached houses, duplexes and townhouses up to 3 stories with their own exits use the IRC; every other building uses the IBC (IBC 101.2).

A random sample from 1,598 sections for San Antonio, TX, the 2024 IRC

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  • R322.1

    Dwelling Units or Sleeping Units

    • Buildings with four or more dwelling or sleeping units follow the IBC accessibility chapter for R-3; owner-occupied lodging with five or fewer guestrooms is exempt.

    International Residential Code, 2024 · Chapter 3, Building PlanningRead the full text (opens UpCodes in a new tab)

  • R602.10.6.5

    Wall Bracing for Dwellings With Stone and Masonry Veneer in Seismic Design Categories D

    • In SDC D, stone or brick veneer above the first story means BV-WSP bracing (or engineering for townhouses and three-story D2 homes); veneer on the first story only uses normal bracing.

    International Residential Code, 2024 · Chapter 6, Wall ConstructionRead the full text (opens UpCodes in a new tab)

  • R703.4.1

    Flashing Installation at Exterior Window and Door Openings

    • Window and door flashing drains to the face of the wall or the house wrap, with air sealing inside the gap; without instructions, use a sloped or sealed sill pan plus head and jamb flashing.

    International Residential Code, 2024 · Chapter 7, Wall CoveringRead the full text (opens UpCodes in a new tab)

  • R301.2.2.10

    Seismic Restraint of Appliances and Equipment

    • Fixed appliances in SDC D (and townhouses in C) are braced or anchored, unless they are light, low or squat enough to be exempt.

    International Residential Code, 2024 · Chapter 3, Building PlanningRead the full text (opens UpCodes in a new tab)

Searches all 4,276 IRC 2024 sections, 5,532 IBC 2024 sections and defined terms (Chapters 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33 so far) and each city's local rules as they are added. Section numbers and titles from the International Residential Code and International Building Code, 2024 editions, copyrighted by the International Code Council; the IRC's electrical chapters (34 to 43) follow NFPA 70, the National Electrical Code. Requirements are summarized in our words (IRC Chapters 3 to 43, IBC Chapters 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33); read the full text at the link on each result. Local values come from each city's published documents.

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