As far as we know, the company began transforming the swampy area in mid-July (July 17, 2020), while the project was announced on July 23, 2020, by the way of releasing Q2 2020 financial results.
In the video above, we can see the site as of July 22, 2021, with Jeff Roberts who recorded the progress for around year, almost every day.
The Tesla Giga Austin plant is huge. The structures are still missing the walls (they will be all combined under one roof), but overall, most of the construction work is completed. We guess that there should be no problem to complete the plant this year (current phase), although expansion might continue in stages over multiple years, depending on the needs.
The first models assigned for production are the Tesla Model Y - a new version, with cylindrical 4680 type batteries - as well as the Tesla Cybertruck (the prototype of which was seen a few times here and there). Tesla is expected to build at the site also a battery cell factory (4860-type cells).
The second video about Tesla Giga Austin comes from Joe Tegtmeyer, who is known for providing a very detailed presentation about what is happening at the site.
One of the best things in the video is the comparison between 22 July 2020 and 22 July 2021:
The third video is shared by Terafactory Texas. As we can see around 10:40, on the other side of the highway, there is another construction project:
Meanwhile, behind the main vehicle plant and parking, Tesla is reportedly building a battery-related plant (18:45):
Tesla Giga Austin (Gigafactory 5) in Austin, Texas:
- started on July 17, 2020, and announced on July 23, 2020
- Cybertruck: in development, unveiled in late 2019, production from late 2021
- Model Y: an additional production site in the U.S. (no word about the Model 3)
- Semi: in development. To be launched in 2021, but (not yet confirmed for Texas)
2,481 acres of land (2,100 acres initially plus additional 381 acres acquired in September 2020)