Energy, lifecycle, daylight and moisture.

The fastest workflows for AU / NZ building code compliance.

Speckel MeshSpeckel NJMSpeckel Arcadis
Tested, verified and supported.

Why Speckel?

We create environmental design apps for engineers, architects and building designers to meet and go beyond AU / NZ building code requirements in commercial and residential buildings.

From Free To Flexible

Flexible licensing, free or from $1 a day per person. Cancel anytime.

Fast and verified sims

Superfast EnergyPlus and Radiance sims, so more results in less time.

All in your browser

Online, so no downloads, hardware upgrades or spreadsheets.

Building code compliant

Secure and verified against ASHRAE 140, to meet building code requirements.

Verified supplier data

Verified product data from trusted suppliers, so no more hunting for tested data.

Tutorials and workshops

Instant platform support, tutorials, guidance and workshops are just clicks away.

1,900+ users

10,000+ designs

3000+ projects

2,500+ products

Our workflows.

For simple and complex buildings.

All of our workflows are tested and verified to meet AU / NZ building code compliance. We optimise, automate and post-process your model data for you, making our workflows faster than traditional modelling methods.

Energy, emissions and comfort

Powered by EnergyPlus, simulate energy, emissions, and thermal comfort assessments for planning, Green Star and AU / NZ building code compliance.

Daylight design

Powered by Radiance, simulate daylight assessments for planning, Green Star and AU / NZ building code compliance.

Speckel Radiance
Speckel Moisture

Powered by EnergyPlus, simulate moisture assessments for AU / NZ building code compliance.

Speckel Moisture
Lifecycle Assessments

Powered by EnergyPlus and our own ISO 15978 algorithm, undertake embodied and operational carbon assessments in the same workflow as energy and daylight modelling.

Increase Your Productivity By 50%.

Our Apps

Speckel embeds all relevant energy efficiency codes and standards, so you can meet compliance requirements quicker than ever.


Design whole buildings in the browser against NCC Section J and H1 - Energy Efficiency.


Undertake wall Total R-value (AS/NZ 4859.2/ NZ 4214), thermal bridging (NZS 4214/ISO 6946) and moisture assessments (ISO 13788 / DA07).


Undertake floor and subfloor Total R-value (AS/NZ 4859.2/ NZ 4214) and thermal bridging (NZS 4214/ISO 6946) assessments.


Undertake cold and warm roof Total R-value (AS/NZ 4859.2/ NZ 4214) and thermal bridging (NZS 4214/ISO 6946) assessments.


Undertake ISO 15099 total U-value assessments for glazing (AU only).

Tested + verified products.

You'll be in good company.

We work with building envelope product suppliers to review testing data and make it available across the platform.

add your products
Free 28-day trial.

Get started today.

Annual Billing
Monthly Billing
Save 20% with annual plans.


  • 1 seat
  • Thermal bridging
  • Lifecycle
  • Building code
For individuals, after the basics. More.
Get Started


AU$79 /month
  • 3 seats
  • Energy modelling
  • Daylight modelling
  • Reporting
Access to all our apps, with some limitations. More.
Get Started


AU$159 /month
  • 8 seats
  • Energy modelling
  • Daylight modelling
  • Reporting
Full access to all our apps.
Get Started
Super Premium


  • Unlimited seats
  • Super security
  • Training
  • Analytics
Full access for the entire business. More.
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Get going in 2 mins.

You'll be creating your first design in no time!

Jump on to a free Essentials Level plan for 28-days!

Sign Up

Get started by hitting the button below and selecting from either AU or NZ databases.

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Verify Account

Next. Verify your account. Don't forget to check your junk box!

Create Team

Now, create a Team. A Team is a directory that holds all of your Projects.

Ready to Use!

We said it was quick! You are ready to roll.

Watch and Learn.

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