Your responsibility. Your overview.

The building owner is responsible for delivering climate documentation at project completion, per BR18 §297-298. Without documentation, an occupancy permit cannot be issued. In practice, the task is typically delegated to the advisor, but the legal responsibility lies with the owner.

The current limit is 1.5 kg CO₂e/m²/yr for the total construction process (A4 transport + A5 construction site). The limit tightens to 1.3 in 2027 and 1.1 in 2029. A45 shows your consumption against the limit in real time.

Without complete A4-A5 documentation, the building cannot be occupied. The documentation must reflect the actual construction (as built) and cannot be handled at the last minute — making continuous data collection from day one essential.

Yes. A45 gives you continuous oversight of A4+A5 consumption against the limit. Contractors and advisors add data directly, and you can log in to check status at any time — without waiting for reports.

You can invite them directly from the platform — they create a free account and contribute data to your project. Alternatively, you or your advisor can enter their data manually. The platform is designed to work regardless of who owns the process.

Yes. Your dashboard gives you an overview of all active projects with compliance status, consumption against the limit, and team activity. You immediately see which projects are on track — and which need attention.