topic Re: Create a variable from a zone surface in Parametric design

Create a variable from a zone surface

Matthias201 — Tue, 06 Jan 2026 15:52:31 GMT

Hello,

I am currently using "Project Info..." to create “variables” and be able to modify, for example, the building footprint across multiple layouts using Autotext.
I would like to be able to link Zones or Fills, extract the total area (by category — existing, modified, etc.), and insert the total as autotext into my layouts.
If this is possible…

Thank you.

Re: Create a variable from a zone surface

BerndSchwarzenbacher — Tue, 06 Jan 2026 17:19:17 GMT

Hi Matthias,

If I understand you correctly, you want to sum up areas of zones & fills right and then display it again.

It's not possible without some coding or special tools (either Python Scripts or Add-Ons):

Here is a script: https://community.graphisoft.com/t5/Archicad-Python-API/PYTHON-Sum-area-script/td-p/371704

And my version: https://archi-xt.com/posts/sum-zone-areas-with-python/

I also offer the Live Apartment-Stamp Add-On: https://archi-xt.com/add-ons/top-stamp/

Best regards,
Bernd

Re: Create a variable from a zone surface

Matthias201 — Mon, 19 Jan 2026 13:28:29 GMT

Hey,

Sorry for the wait, I just looked at the scripts. I'm looking for the same, but who's able to put the sum in a layout, not just in a label of a zone.

Re: Create a variable from a zone surface

Mathias Jonathan — Mon, 19 Jan 2026 13:49:30 GMT

It depends of what you are calling layouts. The sum area scripts that I shared put the results in a custom property. You can make a schedule with those custom properties.

The Tapir plugin (new pythons command - an open source project ) can modify project infos (GetProjectInfoFields and SetProjectInfoField commands) if it is what you are looking for.

Re: Create a variable from a zone surface

Matthias201 — Tue, 20 Jan 2026 08:33:27 GMT

The problem with the first scripts you sent me is that the sum created in an autotext isn't placeable in another textarea than the label of a zone.

But i want to create in a Layout (see on screenshot joined) a text with the autotext linked to the surface of the sum of a type of zone.

The Tapir add-on looks very deep, do you know if it can do that?