Presidium Commons

• Avina is located across from the elevator.
• Barla Von can be found here. (Before the attack on the Citadel)
• A volus accountant lamenting the lost Book of Plenix can be found here.
• A human female conversing with her asari mistress. (Before the attack on the Citadel)
• A volus banker trying to talk a salarian investor out of closing his account on the Citadel. (After the attack on the Citadel)
• An asari scientist trying to find the Prothean Hesperia period statues. (After the attack on the Citadel)
• With Leviathan installed, a panel appears by the skycar located directly across of the elevator exit, allowing for rapid transit directly aboard the Normandy or to the Purgatory Bar.
  • The same panel allows transportation to Silversun Strip if Citadel is installed (as well as to Normandy if Leviathan is not also installed).

Shops:

• Kanala Exports
• Elkoss Combine Arsenal Supplies

• Narl, one of Aria's men, can be found while negotiating with the Blood Pack.
• Miranda Lawson can be found after her third correspondence.
• The volus ambassador, Din Korlack, and Zaeed Massani can be encountered in one of the apartments while investigating a lead on a Cerberus mole.
• The salarian looking for a fossil can be found on the left corridor on the map. (After the attack on the Citadel)
• An advertisement for Blasto 6: Partners in Crime can be heard here.

• Liara T'Soni (Before the attack on the Citadel)
• Matriarch Aethyta (Before the attack on the Citadel)
• A turian C-Sec officer seeking jamming technology against auto-targeting weaponry. (After the attack on the Citadel)
• Kaidan Alenko or Ashley Williams (if they survived prior events).

• General Septimus Oraka can be found here.
• Rebekah and Michael Petrovsky can be found here.
• The salarian Sellea trying to find technology to stabilize the water temperature to help his sister deliver the eggs.
• Rupe Elkoss, owner of Elkoss Combine, conversing with Sara, a human female. (Before the attack on the Citadel)
• Two nurses talking about their daily work at the hospital. (Before the attack on the Citadel)
• An Alliance scientist trying to obtain the Obelisk of Karza. (After the attack on the Citadel)
• A human C-Sec officer looking for ways to detect and deactivate Cerberus turrets. (After the attack on the Citadel)
• Tali can be found here after the initial meeting with the quarians, arguing with a turian diplomat about medical supplies. If she survived the battle for Rannoch, she will be coordinating Fleet actions with a turian clerk.

• Commander Bailey's assistant can be found here to secure the Eclipse mercenary group for the war effort.
• A couple of citizens are plotting an assassination attempt here. (After the attack on the Citadel)

• EDI and Joker (Before the attack on the Citadel)
• The asari merchant Ereba talking with another asari customer.
• Kannik, a black market dealer, can be found here while securing the Blue Suns for Aria.
• Liara may also be spotted here, opposite the shops looking at the scenery. (After the attack on the Citadel)

Shops:

• Aegohr Munitions
• Cipritine Armory
• Kassa Fabrication
• Nos Astra Sporting Goods