Star Trek: 10 Secrets About Spacedock One You Need To Know
4. A Second Lease Of Life
Athan Prime, the early 25th Century and what better place to line up a series of classic starships than at a classic starbase.
The familiar shape of Spacedock One loomed up on the viewscreen during the third and final season of Picard. Its outer shell had now been supplemented with a series of rings, in which famed vessels from yesteryear were housed for display. In Võx, it's suggested that not only is the Enterprise-D stored here in the secretive Hangar 12 but that the Enterprise-E may be at least nearby as well.
Viewers know that it wasn't an option for combatting the Borg, but the throwaway line that it wasn't an option teases a possibility that there's one other Enterprise parked at the museum waiting for Geordi's engineering expertise. Hangar 12 is in the lower structure of Spacedock rather than the large mushroom section, thus neatly solving the issue of scale presented by Starbase 74.
Production Designer for Picard Dave Blass revealed that James Chung was responsible for the basic design work on the CG version of Spacedock which, combined with several existing models for reference materials, the team created a Lightwave model then refined it down to what was seen on screen. Blass also said that Spacedock was towed to its new location by warp tugs - possibly by the Wallenberg Class seen around Mars during Picard's first season and part of the Romulan evacuation fleet.
The decision to use the structure from the movies came down to Terry Matalas' love of the design and the fact it was such an iconic piece of classic Star Trek fitting with the collection it housed.