From our friend @DanBoris
151 Ascot Dr DHS BOH Project A-181 - F&B/Restroom Facility
200 Ascot Dr DHS BOH Project A-200 - Ride Installation
400 Ascot Dr DHS BOH Project A-400 - Trench Package
400 Ascot Dr DHS BOH Project A-400-03 - Core and Shell Package
400 Ascot Dr DHS BOH Project A-400-04 - Completion Package
400 Ascot Dr DHS BOH Project A-400 - Ride Installation
480 Ascot Dr DHS BOH Project A-480 Maintenance Building
585 Ascot Dr DHS BOH Project A-585 - Building Modifications & New Addition
648 Ascot Dr DHS BOH Project A-648 - Interior Renovations
800 Ascot Dr DHS BOH - Site Prep Package
800 Ascot Dr DHS BOH Project A-800-02 - Area Development
800 Ascot Dr DHS BOH Project A-800-02 - Area Development
Here are all the Ascot Dr permits. Looking at them organized like this, by best guess is that 180 is the combine quick server and restroom building in the south part of the land, 200 is the Alien Swirling Saucers ride, 400 is the coaster with 480 being it's maintenance bay. 585 and 648 must be the existing sound stage buildings. 585 could be the current TSMM building and 648 being the One Man's Dream building. The 800 permits are some of the earliest so are probably a general address for the whole land.