The 2024 International Residential Code (IRC) is the definitive reference for building and safety standards applicable to one- and two-family dwellings and townhouses up to three stories. Produced by the respected International Code Council (ICC), this edition compiles all building, plumbing, mechanical, fuel-gas, electrical, and energy-conservation requirements into a single, unified volume — making it indispensable for architects, engineers, contractors, builders, inspectors, and serious DIY home-builders.

What’s New in the 2024 Edition

Modernized formatting: single-column layout and updated font styles improve readability. QR-codes now replace margin sidebars and arrows for change tracking. Tables, figures and associated content are grouped directly under their parent sections for easier reference.

Fire-safety and lot-planning enhancements: introduction of “imaginary lot lines” to calculate fire separation distances when multiple dwellings exist on one lot.

New housing flexibility: shared accessory rooms allowed in two-family dwellings.

Updated electrical & mechanical provisions: for example, 10-amp circuits are now allowed for certain lighting outlets and exhaust circuits.

Energy-storage & EV readiness: includes new requirements for energy storage systems — including storage-battery protections in garages — and EV-car feeder load calculations.

Loft & mezzanine regulations: adds requirements for sleeping lofts and sets maximum size limits for tiny-home style lofts; mezzanine-floor reinforcement now required under guardrails.

Updated plumbing/ventilation and materials rules: e.g. solvent-cement joints for CPVC pipe allowed above and below ground; final DWV system test may be visual; air-exhaust openings allowed near operable windows or doors.

These updates reflect ICC’s commitment to addressing evolving construction practices, energy-efficiency needs, safety, and modern living requirements.

Who Should Buy This Book

Building professionals — architects, structural engineers, MEP (mechanical, electrical, plumbing) consultants, contractors — ensuring compliance with the latest 2024 code.

Building inspectors, authorities having jurisdiction (AHJs), code enforcement officers, reviewers.

Construction students, vocational trainees, and educators requiring the most up-to-date residential code reference.

Home-owners or small builders aiming to design or build residential dwellings (single- or two-family homes, townhouses) to meet international code standards.

Why This Edition Stands Out

Fully compliant with 2024 I-Codes and compatible across all ICC publications.

Single, unified code saves you from juggling multiple books (building, plumbing, mechanical, electrical).

Improved readability and user-friendly layout makes referencing faster and more efficient on-site or in the office.

Covers broad scope — from structural design, fire safety and lot planning, to energy storage systems, EV readiness and modern material allowances — reflecting current building trends.