Interesting Barron blog about Fremont ... the sizzle is getting louder:
http://www.barrons.com/articles/BL-SWB-44867
EDIT: This article is suspect ... it may actually be referring to Gigafactory construction.
http://i.imgur.com/WzomZci.jpg
I guess I should have posted here, but I figured the information others had would have been superior. Yes, Tesla is building more at their Fremont factory site. If you zoom in on Google Earth (hint: it's easy to spot from way up, so you don't have to type any sort of address -- just zoom to North America, California, San Francisco Bay Area, then look for the big factory by the lower right bay --- yes, that one, that HUGE one, the biggest one there), you can see the fields to the North and South. The ones in the South have been taken by one if its old suppliers (although seems to me they could get it back), but the ones in the North (above linked picture) are being developed; they took out that nice old concrete Kato Road that used to be in the property and free of outside traffic, and are running the new development right up to the edge of the public roadways, from what I can tell; I don't know if those will be gates, buildings, landscaping, or what, but for certain they'll have less buffer zone with that field gone. I half think that they're building factory the full lot, but I don't know. Anybody who needs to know could probably pull the plans from city & county government sites. Right now, that empty black parking lot in Google Earth is overflowing full of cars (supplier, employee, new product and customer) and delivery activity, so it's a decent question whether or not they'll ever replace parking with factory, so that's why I can't comment on the veracity of the doubling figure
(EDIT: it seems pretty clear they made that up and it is not true); to come up with doubling, one would have to add in that parking lot, and some more from the rest of the property --- it would be a stretch. There is more field to the north of the northern public road that if they added that could tip the balance, but it would still require reappropriating a lot of existing parking lot and/or the southern fields too. If they don't already own it, I'm sure they're not going to pay the ransom price someone's probably trying to sell it for. If anything, Tesla would use it as a reason to spread to other areas, so they aren't just in one area.
Someone already posted a flyover video here a few weeks ago. That should have most of what I described, but I forget how much.
Speaking of nits in that article, "Model X" should be "Model 3".
I am guessing that this article is in error. I think it is referring to Gigafactory! They have misinterpreted a comparison to the size of Fremont to be the location of the construction .... sorry I teferenced it ... I will note suspicions in my post ...
Yes, so we know GF is getting almost double as of new development in the last handful of months, and we also know Fremont factory is getting larger, but we don't know exactly what they're doing in Fremont, and that article said double, and I don't see double in Fremont. You could be right. That article is full of holes, one way or the other.
Tesla Gigafactory: new aerial shots show plant more than doubling in size [September 2016 update]
I think the writer of the errored article might have confused that Electrek article with Fremont, and done bad background research. Maybe they heard someone saw construction equipment at Fremont and they just took some words and ran.
In terms of the layout of the Fremont factory land as it's currently (pre-Model 3) being used, there are a lot of opportunities for efficiency improvement if they're building anything, and they're definitely building something (even if it's a mound of dirt ... hard to assume that that's all it would be). For instance, what if they put the delivery center and service center in the new development near to where the cars currently come out? Do we even know whether Tesla is always going to have all the cars come out that end? There is so much we do not know. Indeed, I hope some of the best minds are probably inventing these answers today, yesterday and tomorrow as we speak.
