Buried City Residential Master Key Locations & Loot Guide

You’ve found a key in ARC Raiders that promises access to locked rooms in Buried City, but figuring out exactly where to take it can be frustrating. The Buried City Residential Master Key opens three specific doors across the map, and knowing which one to use can mean the difference between extracting with high-value loot and wasting a rare item. This guide maps every confirmed door location, the loot you can expect, and the best strategy for solo and team players.

Doors unlocked: 3 ·
Known locations: Grandioso Apartments, Plaza Rosa ·
Key usage: One-time per door ·
Map: Buried City

Here’s a quick reference for the key’s attributes.

Where to use the Buried City Residential Master Key?

Three doors across Buried City accept this key, and each sits in a distinct part of the map. The two confirmed locations — Grandioso Apartments and Plaza Rosa — are well-documented by multiple guides, while the third door remains a subject of community investigation.

Grandioso Apartments (First Floor)

1. Enter the northern building of Grandioso Apartments through broken windows near the sand (YouTube video guide by a community creator).
2. Navigate to a central staircase and use a zip line to reach the first floor (YouTube video guide by a community creator).
3. Alternatively, drop down an elevator shaft to reach the first floor key door (Skycoach guide).
4. After unlocking, loot the balcony for additional items (Skycoach guide).

Plaza Rosa Apartments

• Head to the building west of Plaza Rosa on Main Street (Skycoach guide).
• The door is next to Plaza Rosa, under the Main Street label on the map (Skycoach guide).
• This route is not in the same vicinity as the Grandioso Apartments entrance (Skycoach guide).

Third Unknown Door Location

• Community reports suggest a third door exists, but its exact position is not yet confirmed (Reddit community discussion).
• Some players claim the key unlocks three doors total, but only two have been reliably documented (YouTube video guide by a community creator).

“Some players claim the key unlocks three doors total, but only two have been reliably documented.”

— Community creator on YouTube (video guide)

The pattern: two doors are well-mapped, but the third remains a community mystery. For players who want certainty, sticking to the confirmed locations is the safer bet.

How many doors does the Buried City Residential Master Key unlock?

According to multiple sources, the key opens exactly three doors across Buried City. Each key, however, is consumed after opening a single door — so you need three keys to access all three rooms.

Three doors confirmed

• Community reports and guides agree on three total doors (Reddit community discussion).
• Two are well-documented: Grandioso Apartments and Plaza Rosa / Main Street (Skycoach guide).
• The third door location is still being mapped by the community (YouTube video guide by a community creator).

Each key opens only one door

• The item description confirms the key is consumed after opening one door (YouTube video guide by a community creator).
• This means you need three separate keys to access all three rooms in a single raid (Skycoach guide).

The implication: if you find only one key per raid, you must choose which door to open. That choice directly affects your loot potential and survival odds.

What loot can you find behind the Buried City Residential Master Key doors?

Loot quality varies significantly between the two confirmed doors. Grandioso Apartments tends to yield higher-value items, while Plaza Rosa offers safer but more modest rewards.

Typical loot from Grandioso Apartments

• Weapons, armor, and valuable items are common (Skycoach Buried City guide).
• DualShockers ranks Grandioso Apartments among the top loot spots in Buried City (DualShockers loot guide).
• After unlocking, loot the balcony for additional items (Skycoach guide).

Loot at Plaza Rosa

• Plaza Rosa is also ranked among the top loot spots in Buried City (DualShockers loot guide).
• The Pharmacy building in Plaza Rosa has recyclable loot but no security lockers or weapon chests (Skycoach Buried City guide).
• Grandioso Apartments contains a lot of sellable loot and is relatively safe for money-making runs (Skycoach Buried City guide).

Rarity of items

• Loot quality varies by door, with Grandioso Apartments generally offering higher-tier items (Skycoach Buried City guide).
• Plaza Rosa’s Pharmacy building offers recyclable loot but lacks security lockers or weapon chests (Skycoach Buried City guide).

The loot quality difference makes door choice critical.

Is the Buried City Residential Master Key a one-time use item?

Yes — the key is consumed after opening a single door. This makes every use a strategic decision.

Item description confirms single use

• Multiple guides confirm the key is one-time use (YouTube video guide by a community creator).
• Once you open a door, the key disappears from your inventory (Skycoach guide).

Strategic considerations

• Choose your door carefully — you only get one shot per key (Reddit community discussion).
• Some players argue the Grandioso Apartments key room is the only worthwhile master-key entrance (Reddit community discussion).

“The Grandioso Apartments key room is the only worthwhile master-key entrance.”

— Reddit user in the ARC Raiders community (discussion thread)

The catch: one key, one door, one chance. If you open the wrong door, you’ve lost the key and the loot it could have unlocked.

What is the best strategy for using the Buried City Residential Master Key?

Your strategy should depend on whether you’re playing solo or with a team, and how comfortable you are with PvP encounters.

Solo vs team considerations

• Solo players: Plaza Rosa is safer because it’s less contested and offers a quicker extraction route (Skycoach Buried City guide).
• Teams: Grandioso Apartments offers higher loot density and more rooms to clear (DualShockers loot guide).

Which door offers best loot?

• Grandioso Apartments often has high-value loot, including weapons and armor (Skycoach Buried City guide).
• Plaza Rosa’s Pharmacy building has recyclable loot but no security lockers or weapon chests (Skycoach Buried City guide).

Timing and map awareness

• Grandioso Apartments is a popular loot spot, so expect competition from other players (DualShockers loot guide).
• Plaza Rosa is less contested, making it a better choice for cautious runs (Skycoach Buried City guide).

Understanding these trade-offs helps players decide where to invest their keys.

Related reading: All key room locations on Buried City · All keys and doors locations

For a similar key-hunting experience in a different battle royale, check out the Secret Basement Key guide for Erangel.

Frequently asked questions

For solo players in ARC Raiders, the choice is clear: head to Plaza Rosa for a safer run, or risk Grandioso Apartments for the chance at better loot. Either way, don’t waste your key on the wrong door.