Swiss Building Volume & Area Estimator

Caution

This is an experimental estimator. Validate its results before using them for planning or other consequential decisions.

Estimate above-ground building volumes and gross floor areas from public Swiss elevation, cadastral, and GWR data.

Demo

Live web app: https://bbl-dres.github.io/area-estimator/

The app runs entirely in the browser; no installation is required.

Implementations

Implementation	Best for	Demo	Details
Web App	Interactive upload, 2D/3D review, and CSV/Excel/GeoJSON export	Open app	Web App README
Python CLI	Local or offline bulk processing with exact LV95 areas	Local only	Python CLI README
FME	Inspecting and extending the volume pipeline in FME Form	Local only; requires a commercial FME Form licence	FME README

All implementations use CRS LV95 (EPSG:2056). The Web App and Python CLI estimate floor area; the FME workspace currently implements volume and height estimation only.

Experimental tools

Tool	Status	Details
Mesh Builder	Working	README
Roof Shape from swissBUILDINGS3D	Working	README
Green Roof from swissIMAGE-RS	Working	README
Floor Level Estimator	Unmaintained	README

Run locally

From the repository root, serve the static Web App with:

python -m http.server 8080

Open http://localhost:8080. Setup for the other implementations is documented in their READMEs above.

Documentation

• Technical Specification — pipeline, data model, limitations, methodology, data sources, and references
• Height Assumptions — validation study for the floor-height lookup table

License

MIT