– 6 month timeline likely
– 1.77 million sf of building. 1.03 million building getting converted. Other building being built. More buildings could getting leased or bought.
– main critical path bottleneck is the power upgrades that are needed inside and outside

The main project timeline for converting the warehouse at 111 Empire Boulevard in Brookshire, Texas, into Tesla's third Megapack factory looks like about 6 months.

Current status – Equipment is not installed, power has not been upgraded, reinforcement to allow 80 ton megapacks to be moved has not been done.

Several key factors: the conversion of an existing structure, utility setup (especially power for heavy industrial use), regulatory approvals, Tesla's experience with similar projects, and the specific context of Waller County and the City of Katy.

Info from someone who lives in the area and has been investigating. Tesla took a lease on the building in November 2022 and opened in December of the same year. The building was originally built as a logistics hub for heavy inbound/outbound freight. There are over 200 overhead doors. Four overhead doors with ramps to allow large trucks or equipment to be brought into the building. There is another building (117 Empire) on the west end of 111 Empire (1 million SF) that is to be leased. 117 Empire is 122,000 square feet on a 10 acre lot and it would form a line of three buildings- 117 empire, 111 empire and the new building. A new building is to be built which will be 616,000 square feet. Total square footage of three buildings will be about 1.77 million square feet. The Giga Texas car factory is 10 million square feet. There are several other large buildings in the area which could be leased or acquired.

Currently the building houses just under 10,000 batteries, auto parts, and many items related to the assembly line at Giga Texas.

Key Factors and Main Issues

Conversion of an Existing Warehouse
The building at 111 Empire Boulevard is a pre-existing 1.03 million square-foot warehouse, previously leased by Tesla since October 2021 and used by a third-party logistics company (DB Schenker) for auto parts handling. Converting it into a Megapack factory involves reconfiguring the interior for manufacturing rather than starting from scratch. This reduces the timeline compared to a ground-up build like the Shanghai Megafactory, which took seven months to construct (May 23, 2024, groundbreaking to December 2024 completion).