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National Construction Code

The 2025 National Construction Code is currently in the public consultation phase, meaning it is still under review and not yet legally in effect. However, it introduces significantly expanded requirements for electric vehicle charging infrastructure.
Here are the proposed requirements as of July 2025:

  1. Mandatory Charger Installation & Infrastructure Provisioning
  • Commercial & Apartment Buildings (Classes 3, 5–9):
    At least 20% of car park spaces must be equipped with fully wired EV chargers (Day‑1 installation). All other spaces require pre-provisioned infrastructure—circuitry, cabling, and switchboard capacity—for future charger installation.
  • Residential Buildings (Class 1 & 2):
    • Houses (Class 1): One dedicated 32 A circuit per dwelling terminating in a 15 A outlet in the garage/carport for EV charging..
    • Apartments (Class 2): All parking spaces must have EV-capable switchboard circuits and space reserved for future chargers, plus room for battery storage provision
  1. Upgraded Electrical Infrastructure
  • Switchboard & Circuit Capacity:
    New residential and commercial buildings must incorporate additional switchboard space (e.g., eight spare single-phase slots in gas-using homes, four in all-electric homes) to support future EV chargers and electrification.
  • On-site Wiring & Cabling:
    Car park distribution boards or bus ducts must be placed within 10 m of each EV space, supporting future or initial charger deployment

 

  1. Charger Capacity & Use-Based Provision
  • Energy Delivery Requirements:
    For Class 5–9 buildings, each EV circuit must support a minimum of 12 kWh daily (9 am–5 pm). Class 2 spaces must support 12 kWh overnight (11 pm–7 am), and Class 3 buildings often require up to 48 kWh daily.

 

  1. Smart Load Management
  • Control Systems:
    Distribution boards must include load‑management controls capable of scheduling and balancing EV charging in real-time to prevent electrical overloads.

 

  1. Fire Safety & Regulatory Clarifications
  • EV infrastructure is no longer classified as a “special hazard,” simplifying regulatory compliance and permitting processes.
  • Enhanced fire-safety measures for car park structures reflecting evolving EV and battery fire characteristics.

Summary

  • All new multi-unit and commercial builds (Classes 2–9) must support EV infrastructure—charging-ready or pre-provisioned.
  • New homes require a dedicated circuit for simple charger connectivity.
  • Smart electrical design is mandated, including load controls and switchboard spare capacity, minimizing retrofitting and supporting electrification.
  • Fire safety has been updated to reflect EV norms, removing unnecessary hurdles in compliance.

These NCC 2025 changes align with Australia’s National EV Strategy and aim to streamline the rollout of EV charging, ensuring new buildings are future-ready and can accommodate growing EV uptake efficiently and safely.