Tidmouth Engine Works/Behind the Scenes

Background Information
Tidmouth Engine Works is a fictional facility next to Tidmouth Sheds created by Britt Allcroft and David Mitton.

The works first appeared in the first series episode Thomas and Gordon, which first aired in 1984. Its last appearance was in the twenty-fourth series episode Emily to the Rescue, which was released in 2020.

Gauge 1 models
The works shed was originally built for the first series. According to concept art, the appearance of the works was referenced from one illustration of said shed from Trouble in the Shed. The shed building was able to be diassembled, with a detachable smaller shed on the side and the main structure being split into two halves in order to be reused for Bertie's shed at Knapford Bus Yard.

CGI model
In 2009, the series introduced Computer-Generated Imagery (CGI) as a replacement for the show's long-standing live-action models. The Railway Works were recreated from scratch in CGI by Nitrogen Studios. The model was "hand-sculpted" in Maya, a 3D animation and modelling software.

According to Greg Tiernan, the CGI models are subjected to many rounds of review before they are submitted to HiT Entertainment for final input and approval.