The first walls around Apple’s Campus 2 have begun to take shape, as noted by KCBS reporter Ron Cervi, in a tweet today. Previously, more photos from KCBS showed the site’s considerable excavation under way, and earlier photos from March detailed the demolition work of the former HP campus on the site, which was almost complete at that time.

Demolition on the site began in February, after a lengthy approval process starting with a presentation by Steve Jobs back in July of 2011, which first detailed the specifics of the campus. Since then, we’ve seen a considerable amount of renders of the campus, a scale model of the site which is on display at Apple’s current headquarters, and even a life-size mockup of part of the building.

In October of last year, Apple was given the go ahead on the project by the Cupertino City Council, which is estimated to be about $2 billion over budget, and in November received the final set of building permits. The project itself is estimated to be completed in 2016, after some setbacks.

Today Apple also permanently closed off Pruneridge Avenue for construction, a road that runs directly through the Campus site.

Right now, the road looks more like a wasteland, a far cry from the tree filled space the campus will occupy when completed:

The End has come: Pruneridge Ave. permanently closed today for #AppleCampus2 in Cupertino #Apple #traffic pic.twitter.com/0M7GYhTi67

— Dawn Mortensen (@DawnMortensen) June 10, 2014

We’ve collected more aerial shots and photos of the campus taking shape below.

Devastated to see this once-gorgeous, tree-lined strip of Pruneridge reduced to dirt for #applecampus2 in #Cupertino pic.twitter.com/D0ISZeCnKM

— Dawn Mortensen (@DawnMortensen) June 8, 2014

On my flight into San Francisco this afternoon I saw Apple’s ‘Campus 2’ taking shape! pic.twitter.com/RtacR2BtKn

— Sam Beckett (@samjohnbeck) June 8, 2014

“What is this? A headquarters for ants!” formingsupernova @ Apple Inc. http://t.co/qVpz8vaTzz

— Mathew Jackson (@Matjackson1) June 5, 2014

Apples new HQ is HUGE! The spaceship itself could hold AT&T Park. #sky1hightechtour http://t.co/2NQo5XzWpW pic.twitter.com/cYKAqCqXTJ

— Ron (@Sky1Ron) June 4, 2014

Breaking ground at #Apple Campus 2 #WWDC14 #WWDC pic.twitter.com/1xG2wz8FHm

— Dean Johnson (@activrightbrain) June 3, 2014

I like this pic. Apple’s old triangle bldg HQ in view of Apple’s future HQ. #sky1hightechtour pic.twitter.com/LQjhLqgCyd

— Ron (@Sky1Ron) June 2, 2014

Work progresses on #applesnewHQ #sky1hightechtour (2of3) pic.twitter.com/UbpsiqMZcg

Apple Campus 2 as viewed from Pruneridge. Amazing! pic.twitter.com/n1vDNVOGA9

— Kiel (@KielO) June 1, 2014

The dirt on which the new #apple spaceship #headquarters will be built. This is huge property.… http://t.co/aYTAzd78DO

— Michael Laccabue (@Illini45A) May 28, 2014

Sky 1 spots more progress on the spaceship…#ApplesNewHQ I’ll tweet more Silicon Valley… http://t.co/sPWS4KvkpO pic.twitter.com/jAoc8yt07k

— Ron (@Sky1Ron) May 27, 2014

Cruising by Apple’s future mothership campus. From what I can see, no one is working today. #SiliconValley pic.twitter.com/Dbl4elxzB9

— janettwokay (@janettwokay) May 26, 2014

Months-long road work next to Apple’s new campus. Laying telco wires?これで1Gとかだったら笑う pic.twitter.com/X6o9X45TuY

— Chika (@chikawatanabe) May 22, 2014

One more apple road construction pic pic.twitter.com/I1wM9G2Ym7

Apple Campus 2 construction in progress. http://t.co/qToColb9NT

— Kyle Wiens (@kwiens) May 18, 2014

Rough grading is complete at the old HP campus. http://t.co/mAxhbHVbp4

Apple has erected Jurassic-park sized fencing to keep the giant machinery from escaping. http://t.co/Tx6xVQ1f3y

Apple is driving steel pilings in the ground every 80 feet to support a massive structure. http://t.co/tl4qcuQnvv

They have dug a 40 foot trench under the perimeter of the building. Underground tram? http://t.co/VMQaQbMncq