Bad Homburg’s U2 subway extension breaks ground for 2029 link to Frankfurt

A historic groundbreaking launches Bad Homburg’s long-awaited subway upgrade. How will this tunnel transform daily life for Frankfurt commuters?

, and Administrator

2025 December 14 . 7:12 PM

1 min read

At the bottom of this image, there is a road, on which there are white color lines. In the... — At the bottom of this image, there is a road, on which there are white color lines. In the background, there are lights attached to the poles and there are buildings. And the background is dark in color.

Bad Homburg’s U2 subway extension breaks ground for 2029 link to Frankfurt

Work has officially started on the U2 subway extension in Bad Homburg. The project will create a direct link between Gonzenheim and Frankfurt’s city centre. A groundbreaking ceremony on 9 December 2025 marked the beginning of construction.

The 1.6-kilometre extension will run from Gonzenheim to Bad Homburg’s main train station. It includes a tunnel section and a new stop at Gonzenheim. The Stadtbahngesellschaft (SBHG) is overseeing the entire project, from planning to completion.

Once finished, the extension will improve transport connections between Bad Homburg and Frankfurt. The new tunnel and Gonzenheim stop aim to ease travel for daily commuters. The project remains on track for completion by late 2029.