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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 4,296 sections for San Antonio, TX, the 2024 IRC

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  • R306.2.1

    Elevation Requirements

    • In A Zones the lowest floor, basement included, is at least 1 ft above base flood or at the design flood level, whichever is higher.
    • In AO shallow-flood zones, the lowest floor is the mapped depth plus 1 ft above the highest adjacent grade, or 3 ft if no depth is mapped.
    • A detached garage or shed may sit below flood level if it's one story, 600 sq ft or less, storage or parking only, anchored, vented and flood-resistant.

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

  • P2902.4.3

    Hose Connection

    • Hose bibbs and wall hydrants have vacuum breakers, except heater drain valves and washer valves with built-in protection.

    International Residential Code, 2024 · Chapter 29, Water Supply and DistributionRead the full text (opens UpCodes in a new tab)

  • M2101.8

    Expansion, Contraction and Settlement

    • Piping is installed free of harmful stresses, allowing for expansion, contraction and settlement, without stressing the structure.

    International Residential Code, 2024 · Chapter 21, Hydronic PipingRead 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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