Challenge
The decisions that shape a building’s climate footprint are made early - in geometry, construction principles and materials - yet LCA has traditionally arrived too late to inform them.
Solution
Real-Time LCA ties climate data to the project’s quantities and materials, so the design team can run calculations continuously and compare alternatives as the project develops.
Result
LCA now works from the earliest phases, making sustainability concrete and measurable and grounding shared decisions with clients and consultants in real data.
For Luplau & Poulsen, a building’s climate footprint is largely decided at the start - in its geometry, its construction principles and its material choices, long before the details are fixed.
With Real-Time LCA, the practice can test those decisions as it designs: comparing real alternatives against a live picture of the footprint, rather than waiting for a report at the end. LCA becomes a design tool, not a documentation task.
Sustainability is decided early - or not at all
Luplau & Poulsen start from a clear position: the choices that most affect a building’s climate footprint are made in the earliest phases of a project. Geometry, construction principles, material use, and how a building can be maintained and renovated over its life - these are settled early, and as an architecture firm the practice has significant influence over them.
“As an architecture firm, we have significant influence over the choices made early in the process - the building’s geometry, its material use, construction principles, and the options for maintenance and renovation. Many of the decisions that most affect a building’s climate footprint are already made in those early phases.” - Luplau & Poulsen
That is why the team treats sustainability as more than meeting current climate requirements. It is about buildings with a long lifespan, low resource use, and good conditions for the people who use them - and about making conscious, documented choices the whole way through the design process. For that, LCA has to be available when the decisions are actually being made.
“Once the geometry, construction principles and material choices are set, the room for real improvement narrows.” - Luplau & Poulsen
LCA that keeps up with the design
The biggest benefit of a modern LCA tool, for Luplau & Poulsen, is that climate calculations can be brought in earlier and used more actively. Instead of a final documentation task, LCA becomes something the team runs continuously to test ideas and support the project’s decisions.
“With Real-Time LCA, we can quickly get an overview of the project’s climate footprint and see which building components and materials matter most to the overall result. That makes it easier to focus effort where changes actually make a noticeable difference.” - Luplau & Poulsen
Because the calculations are tied closely to the project’s quantities and materials, alternatives can be tested and the consequences of a change followed as it happens. The result is a more dynamic way of working - and a better basis for dialogue with the client and the other consultants. It also matters that LCA becomes more approachable for the whole design team: the easier the results are to understand and use, the more likely they are to shape the design.
“When the calculations are tied to the project’s quantities and materials, testing an alternative - and seeing what it means for the climate account - becomes part of the work, not a separate exercise.” - Luplau & Poulsen
The whole building, not the single material
Luplau & Poulsen are wary of chasing low-footprint materials in isolation. A material with a low climate footprint is not automatically the better choice if it leads to greater material use, a shorter lifespan, or more replacement and maintenance over time. LCA earns its value when it is used across the whole process to compare real alternatives and substantiate the choices being made.
“It is important to look at the whole rather than individual materials or products. A material with a low climate footprint is not necessarily the better choice if it results in greater material consumption, a shorter lifespan, or an increased need for replacement and maintenance.” - Luplau & Poulsen
Sustainability is also a cross-disciplinary task. The strongest results emerge when architects, engineers, developers, contractors and suppliers work from a shared and up-to-date basis for decisions. Real-Time LCA gives them that common ground - the numbers that turn a discussion about materials and climate targets into a qualified, shared decision.
“LCA results don’t create better buildings on their own. They give a qualified basis for the shared decisions that can.” - Luplau & Poulsen
Key outcomes
- LCA moved upstream - climate calculations now inform geometry, construction principles and material choices in the earliest phases, where they have the greatest effect.
- A fast overview of each project’s climate footprint, showing which components and materials drive the result so effort goes where it counts.
- Alternatives tested as the design develops - because calculations are tied to the project’s quantities and materials, the climate consequences of a change are visible as it is made.
- LCA made accessible to the whole design team, not only specialists - results that are easy to understand are more likely to shape the design.
- A shared, up-to-date basis for decisions with clients and consultants, grounding conversations about materials and climate targets in real data.
- Whole-building thinking over single-material fixes - comparing real alternatives across lifespan, maintenance and material use, not just headline footprint.