Building carbon calculation platform

Reduce emissions. Gain control.

Emissions figures from the first sketch, while the design can still change. For contractors, architects, developers and consultants.

Get startedBook demo

Trusted by leading companies

THE AUTOMODEL

Early phase calculator

Compare structural options at sketch stage, before anything is fixed, and see which ones come in under target.

Read more →

Early phase calculator

Compare structural options at sketch stage, before anything is fixed, and see which ones come in under target.

Pick a structural systemkgCO2e / m2 GFA
0
——
Read more →
What these numbers are

Each figure is the material carbon this frame-and-floor choice produces for one reference building, a 4 000 m² office over four storeys, so the six are directly comparable. Covers structure, roof, facade and internal walls; excludes foundations and ground works, building services and fit-out. Indicative only: the factors are chosen to rank materials correctly, not to report a project. A real calculation uses your own geometry and verified product data.

Office towers seen from below
reduzer's features

From first sketch to final report, in one place

Verified EPD library

Verified EPDs, national databases and Reduzer's own data.

→

BIM integration

Quantities straight from the model, kept in sync as it changes.

→

Compare to benchmark

Measure designs against a carbon target or certification scheme.

→

Collaborate and share

Your whole team works in the same project.

→

Ready-made reports

Graphs, tables and docs for BREEAM, EU Taxonomy, TEK17 and more.

→

Have a question?
Get in touch with us 👋

Fill up the form and our team will get back to you within 24 hours.
Thank you! Your submission has been received!
Error! Please try again.

For every role in the project

Make decisions faster and better

A worker in a high-visibility jacket on the upper deck of scaffolding around a building under construction.

Contractor

→

Win more tenders, with less overhead

Rolled and flat architectural drawings showing a building elevation in fine line detail.

Architect

→

Shape the design before it's locked in

Two tower cranes above a multi-building construction site, photographed in black and white.

Developer

→

Track carbon targets across your portfolio

An open laptop on a bright desk with a graphics tablet, notebook and pens arranged around it.

Consultant

→

Deliver expert LCA in a fraction of the time

See it work

Inside Reduzer

A short tour of the platform. Book a demo to see how it can work on your own projects.

✓
Set up the project and reference building
✓
Pull quantities from the BIM model
✓
Swap materials from the EPD library
✓
Export a report
Book demo

Customers

“Previously, calculating the climate footprint of technical equipment has been time-consuming. With Reduzer's early-phase calculator for technical equipment, we have already included this in the sketch project phase.”

Martin Lund

Environmental manager, Veidekke

FAQs

What Reduzer is, who it's for, and how it helps you reduce emissions and stay in control.

Get started
What is Reduzer?

Reduzer is a carbon decision platform built for the construction industry. It calculates a building’s emissions from early concept through completion, giving project teams a single place to model, test, and compare carbon outcomes. The platform makes carbon measurable and actionable at the moments when design and material choices still influence cost, performance, and compliance.

Who is Reduzer for?

Reduzer is for all roles involved in shaping a project’s carbon footprint: architects, engineers, consultants, contractors, and property developers.

It scales from small practices to large portfolios, and is designed to be robust enough for carbon specialists, with full transparency into the data. It is also intuitive enough for non‑experts, so anyone responsible for a decision can test and act on the numbers themselves.

The platform ensures that carbon ownership sits with the people making the choices.

How does Reduzer help reduce emissions?

Reduzer enables reductions where they matter most: early‑stage decisions. Using Automodel, the platform generates carbon calculations from the first sketch, when design and material changes have the highest impact.

Teams can test design and material alternatives, compare versions side‑by‑side, identify lower‑carbon options before they are fixed, work through all project stages in a single continuous model, and switch between regulatory schemes without recreating projects.

Carbon becomes a strategic design parameter, giving teams control over reductions and visibility into their impact.

Which regulations and schemes does Reduzer support?

Reduzer is built around the standards that underpin building carbon: EN 15978 for building-level assessment and EN 15804 for product data, with methods that trace to FutureBuilt ZERO. It produces the documentation for the schemes our markets run on, including Norway's TEK17, Sweden's klimatdeklaration, BREEAM, FutureBuilt, and many more, so the compliance report becomes an export from work you've already done.