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Automated building life-cycle assessments for every stage of your project

Get Green Star or Home Star credits and meet your carbon neutral goals with One Click LCA.

Building LCA made easy

Everything you need to perform carbon assessments and achieve green building certifications in New Zealand

Early design quick baseline carbon assessments

Generate quick and easy baseline buildings and measure their carbon footprint before you even start drawing. More on early carbon optimisation

Automate with BIM integrations

One Click LCA integrates with Revit, Grasshopper, Excel and all leading BIM and BEM tools for quick and easy whole building LCA that fits into your workflow. 
More on our data integrations

Material benchmarking

Use our powerful comparison tools to benchmark your materials against the world’s largest construction environmental database. More on our extensive database

Identify hotspots

Identify the most contributing elements at-a-glance, demonstrate carbon reductions and create reports tailored to a wide range of certification schemes. More on the certifications we support

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Advanced eco-design features

Go a step further and get powerful eco-design features to optimize structural and material impacts

Extensive material choices

Perform quick calculations with access to manufacturer-specific and generic materials data or add your own private data.

Easy material comparisons

Compare the environmental impacts of construction products easily and choose the most sustainable and cost-efficient option for your project.

Quick design comparisons

Create several designs to compare options and optimize impacts.

Who is it for?



Sustainability Consultants

We make compliance easy for you

With One Click LCA, you can get LEED credits, comply with a wide range of voluntary initiatives and meet net zero requirements

Green Star New Zealand

  • Earn up to 7 points for the Materials and LCA credit.
  • Conduct an early design review with Carbon Designer.
  • Easily identify hotspots and ways to reduce impacts from materials.
  • Reports tailored for  Green Star credits.

Home Star

  • Calculate whole life embodied greenhouse gas emissions.
  • Access manufacturer-specific EPDs and generic data. 
  • Calculate quantity of reused material.

BREEAM International

  • Earn up to 10 credits.
  • High-quality LCC and whole building LCA.
  • Early-stage carbon assessments.
  • Compare structural elements to identify hotspots.
  • Reports tailored for BREEAM credits.

Learn more

LEED International

  • Earn up to 15 credits.
  • Easily create baseline buildings and design options.
  • Automated whole building LCA.
  • Powerful design comparative analysis.
  • Reports tailored for LEED credits

Learn more

Get the right plan for you

One Click LCA offers a range of different subscription plans for Australia and New Zealand. Choose a plan that’s right for you and select any add-ons to help you go even further 

What makes us different?

User-friendly software

One Click LCA is the #1 easy and automated web-based life cycle assessment software that is easy to navigate even for beginners. It is helpful for single users as well as teams who wish to design low-carbon projects and achieve certification credits.

One Click LCA’s extensive global database

One Click LCA integrates data from all of the available EPD platforms around the globe. EPDs in the One Click LCA database include detailed technical descriptions about building products and comply with EN 15804 and/or ISO 14025 standards.

BIM and BEM Software Integrations

Import BIM and BEM models to One Click LCA or use plugins to optimize within your design software. One Click LCA supports integrations with design data from Revit, Excel, Tekla, and 15+ integrations.

Outstanding customer support

One Click LCA experts offer you training and support to make the process easier for you. We always deliver expert customer support and you can hold us accountable for our customer promises.

What do our customers say about us?

Using One Click LCA to build embodied carbon models helps me quickly and easily make material replacements and assess the potential benefits of each selection.
Melissa Nouel

Sustainability Consultant, Integral Group Australia

One Click LCA’s integration with our BIM workflows and data quality allows us to access carbon insights, confidently make data-informed design decisions and provide robust project carbon reporting. This enables us to provide our clients with data-led low carbon design, carbon design management services and meet their climate goals through better design.
Graeme Finlay

Principal, Warren and Mahoney


What data is available in One Click LCA? Does the database include EPDs from New Zealand?

One Click LCA contains more than 130k data points. This includes all EPDs from all publishing bodies, including EPD Australasia, as well as local generic data including all BRANZ, EPiC and AUSLCI datasets.

Can I import design data from Revit and other BIM platforms and other software?
Yes, One Click LCA integrates with multiple software platforms to make it easier to upload your material quantities. Supported integrations include: Revit, Rhino and Grasshopper, Tekla Structures, Trimble Connect, IES-VE, Designer Builder and Excel. You can find a list of our supported integrations here. 

All of our plans for New Zealand include at least one integration.

How can I know which materials have the highest impacts?
We have a tool that shows the contribution of all the individual structures and materials and highlights those with higher emissions. This enables you to easily locate the components with the highest emissions.
Can I perform an LCA if I don’t have any material quantities?
Yes, the Building LCA tool allows you to perform life cycle assessments at any design stage. When no material quantities are available you can generate your own using the Carbon Designer add-on. The only things you need to know are building type, gross floor area, and number of floors. The rest you can either customize or use default values. Carbon Designer will generate shoebox material quantities that can be imported to your LCA model.
Do I need to know from which manufacturer my materials will come?
You don’t necessarily need to know from which vendor you’ll be procuring the materials. If you don’t have manufacturer specific information, you can use our extensive environmental impact dataset which covers all construction product types. We integrate specific manufacturer EPDs but also generic data so that you can always find the right match.
Can I use One Click LCA to create a baseline building for LEED?
Yes. We have detailed four baseline strategies that you can use for LEED certification in our helpdesk.
Do I need EPDs for all the materials to be able to calculate an LCA?
When calculating a Life-Cycle Assessment you should always choose the best quality data available, which means that, if the material manufacturer you are planning to work with has product EPDs available following your calculation standard, you should use them. However, this might not be possible in all cases. If you are in an early design stage you may not yet know which manufacturer you are going to choose. When no exact information is available, you should use the second best option, which may mean similar products from another manufacturer, product category level EPD, or average LCA data for the product in question.

One Click LCA provides both an extensive database of EPDs and average data for the products. We also offer more detailed guidance to our clients to help them choose the most relevant datasets.

Ready to get started?

Book a demo with our local specialist

Resource Hub

Ebook, Guides & Webinars

A one-stop hub for everything you need to know about building life cycle assessment, data, and business cases around low-carbon design & construction.