New Zealand Building Code tools

For architects, architectural designers and technicians, building consent officers and students. Every value carries the paragraph it came from and the edition it was read against.

Tools

Named for the job. Each reads every document the job needs.

OutsideInside

Reads H1/AS1 · NZS 4214 · E3/AS1

Construction R-value

Work out the R-value of a roof, wall or floor from its layers, then check the whole house against the reference building.

Calculates

First floorGround floorVentStackDrainGully trapConnection

Reads G13/AS1 · AS/NZS 3500.2

Drainage design

Put the fixtures on your own floor plans and get the sanitary plumbing and drains sized, vented and drawn. Your plans stay in this browser.

Designs from your plans

600C/AS1760D1/AS1 · NZS 4121 · C/AS2810Kāinga Ora · LifemarkClear opening width

Reads every document at once

Dimensions

Every document's limit for the door, stair or room you are drawing, side by side, with the one that binds marked.

Compares every document

Building Code

What each clause asks, what the drawings show, and where the documents part.

    1. B2/AS1Third Edition
      Durability

      Durability provisions for building elements

      How long each building element has to last, by element and situation, and where E2/AS1 gives a hidden element a different period.

    1. C/AS1Second Edition Amendment 1
      Protection from Fire

      Protection from fire for buildings with sleeping (residential) and outbuildings (risk group SH)

      Whether a residential design is within the scope of C/AS1, and the requirements of Parts 2 to 7 that follow.

    2. C/AS2Second Edition
      Protection from Fire

      Protection from fire for buildings other than risk group SH

      Fire safety systems, occupant load, escape route widths and lengths, and external walls, for risk groups SM, SI, CA, WB, WS and VP. Appendix D's changes to the standards are stated, not worked out.

    1. D1/AS1Second Edition Amendment 6
      Access Routes

      Design a stair from its floor-to-floor height or a ramp from its rise, then check doors, handrails, headroom and slip.

    2. NZS 41212001
      Design for Access and Mobility

      Buildings and associated facilities

      Accessible car parks, routes, toilets and the space each facility needs, by the standard's own sections. Sections 11 and 12 are not in here yet.

    1. E1/AS1First Edition Amendment 12
      Surface Water

      Size gutters, downpipes and drains for the site's rainfall intensity, with sump types and drain access.

    2. E2/AS1Fourth Edition
      External Moisture

      External moisture provisions for timber-framed buildings up to 10 m in height

      Score each elevation's weathertightness risk, then the claddings and flashings that score allows. 9.4 to 9.9 and Part 10 are not in here yet.

    3. E3/AS1Second Edition Amendment 7
      Internal Moisture

      What wet areas put on the drawings: the finishes E3 accepts, containment, a floor waste and the shower.

    1. F4/AS1Third Edition Amendment 2
      Safety from Falling

      Check a barrier against Table 1 and an opening window against 2.1, then every requirement of F4/AS1.

    1. G2/AS1First Edition Amendment 3
      Laundering

      Check one laundry against Figure 1: the tub, the washing machine and the clear floor in front of them.

    2. G3/AS1First Edition Amendment 2
      Food Preparation and Prevention of Contamination

      Check one kitchen against Figure 1: the bench run, the clear space, the sink and the food store.

    3. G4/AS1Fifth Edition
      Ventilation

      Ventilation of buildings

      Net openable area, extract flowrates and trickle ventilators room by room, then gas appliance vents. A wall terminal's clearances are AS/NZS 5601.1's and are not worked out.

    4. G11/AS1First Edition Amendment 6
      Gas as an Energy Source

      Where LPG cylinders can stand: the clearances to openings, drains and ignition sources, and the path from the truck.

    5. G12/AS1Third Edition Amendment 14
      Water Supplies

      Check one water heater: its temperatures, relief valve drain, safe tray and seismic straps.

    6. G13/AS1, AS2Second Edition Amendment 10
      Foul Water

      Which document covers the plumbing and which the drains, the ways to comply, and which of five venting systems suits the building.

      Tool: Drainage design
    7. AS/NZS 3500.22025
      Sanitary Plumbing and Drainage

      Its four venting systems and the sizes each is designed to, and why a design to the 2025 edition is an alternative solution.

      Tool: Drainage design
    1. H1/AS1Sixth Edition
      Energy Efficiency

      Energy efficiency for all housing, and buildings up to 300 m²

      What H1/AS1 asks of a building's thermal envelope, what the consent drawings show for it, and how it changes NZS 4214's method.

      Tool: Construction R-value