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Mercer Safehouse is a Railroad side quest in Fallout 4.

Quick walkthrough

Railroad side quest: Mercer Safehouse
Speak to P.A.M.
Travel to the potential settlement.
Secure the workshop at the settlement.
Build defenses at the settlement.
Report back to P.A.M.
Reward: 300+ XP
200 caps

Detailed walkthrough

To start this quest, talk to P.A.M. inside the Railroad Headquarters anytime after completing the mission Boston After Dark. She will instruct the player to construct a new settlement to expand the reach of the Railroad. P.A.M. states the settlement must be constructed and it will be a random settlement location. If one has already cleared all of the settlement locations it will immediately be a successful mission. Speak again to P.A.M to receive a reward.

If one has not cleared all locations, travel to the random location, and proceed to clear the area, then construct defenses around the settlement until the settlement's defense rating is at least 10. Barricades do not count as defenses until manned and, because there are no active settlers at this point, the player will be required to construct turrets or traps to gain the necessary 10 defense. After this task is complete, head back to the Railroad headquarters and proceed to talk to P.A.M., to claim the reward.

Possible settlements

Quest stages

Quest stages
StageStatusDescriptionLog Entry
100 Secure (location)PAM's found a suitable location for a new safehouse. She wants me to secure the site and fortify it.
200 Build defenses at (location)It looks like PAM has found a decent site for a new safehouse. Now I just need to build some defenses so it's secure.
300 Report back to P.A.M.Mercer Safehouse is fortified and clear of hostiles. Time to let PAM know the good news.
400Quest finishedQuest completeAfter losing so much, the Railroad is finally recovering with a brand new Safehouse. Hopefully it'll help a lot of Synths in the days to come.
9000Quest failedQuest failed


  • The Mercer Safehouse quest can also be obtained during The Molecular Level (if the Sole Survivor joined the Railroad) as a potential location to build the Molecular Relay.
  • Upon completion, a fast travel marker will appear beside the regular settlement marker, saying "Mercer Safehouse."
  • It is possible for the location chosen to be a settlement that the player has cleared out but has not interacted with the workshop at yet.
  • The location the Sole Survivor gets sent to is determined upon receiving the Butcher's Bill quest from Dr. Carrington. The quest automatically begins after completing the conversation with him at the end of Boston After Dark. To select a safehouse, create a save in the middle of this conversation, finish talking to him, then speak to P.A.M. who is now ready to give the Mercer Safehouse quest. Reload from the save point until the desired location is given.
    • Repeating this process might only give options like Starlight Drive-In, Outpost Zimonja, Hangman's alley, and Sunshine Tiding Co-op if they have not been cleared as settlements; other settlement locations are provided once reaching certain levels if the aforementioned settlement locations haven't been cleared, or if lower-level settlement locations have been cleared. It is recommended to save before turning in Boston After Dark and then follow the process of either clearing out these locations first or reaching higher levels until P.A.M. provides new locations.
Location Level requirement
Hangman's Alley None
Red Rocket Truck Stop None
Starlight Drive-In None
Sunshine Tidings co-op None
Taffington Boathouse 10
Outpost Zimonja 15
Jamaica Plain 30
Coastal cottage 40
Croup Manor 40
Murkwater construction site 40
Kingsport Lighthouse 45-46
Spectacle Island 45-46
  • The location the player character is sent to for the subsequent quest, Concierge, can potentially be changed prior to setting up the defenses for Mercer Safehouse.
  • The player character can still change the safehouse location even after the Butcher's Bill quest via console commands. To do so, type ClearQuestAliases RRR04 and SetQuestAliases RRR04 successively until the desired location is selected. The ID of the chosen safehouse location can be checked by entering ShowQuestAliases RRR04 - the "REF 'Workshop'" key will point to the refID of the workshop where the safehouse will be located. Note that once this quest is completed, these commands no longer have any effect, i.e. the safehouse cannot be moved.
    • If the safehouse location is moved by the aforementioned console commands, you will need to clear and build defenses for that location in order to complete the quest. Should the new location already meet the prerequisites, the quest will automatically complete once you fast travel there.
    • Changing the safehouse location via the console will not update the quest text for the location in the Pip-Boy.
  • The quest can also be received from P.A.M on returning to hand-in Butcher's Bill without receiving Burning Cover previously.
  • After the defenses have been built, the location of the first mission in Jackpot is chosen.
  • If all possible Railroad safehouse settlements have already been obtained, one will be picked at random, and the quest will begin at stage 200.