diff --git a/doc/manual/rl-next/pure-storepath-builtin.md b/doc/manual/rl-next/pure-storepath-builtin.md
new file mode 100644
index 00000000000..8526d7e5949
--- /dev/null
+++ b/doc/manual/rl-next/pure-storepath-builtin.md
@@ -0,0 +1,10 @@
+---
+synopsis: "Add pure-storepath-builtin experimental feature"
+issues: [ 5868 ]
+prs: [ 12141 ]
+---
+
+The `pure-storepath-builtin` [experimental feature](@docroot@/language/builtins.md) was added, which controls whether [`storePath`](@docroot@/language/builtins.md#builtins-storePath) should be allowed in pure evaluation mode. If the `pure-storepath-builtin`
+experimental feature is enabled, `storePath` will no longer error when run in pure evaluation mode.
+
+This is intended as a stop-gap solution while the correct behaviour of `storePath` is debated in the linked issue.
diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc
index a0e2753b5ec..450da424e13 100644
--- a/src/libexpr/primops.cc
+++ b/src/libexpr/primops.cc
@@ -1628,7 +1628,7 @@ static RegisterPrimOp primop_toPath({
    corner cases. */
 static void prim_storePath(EvalState & state, const PosIdx pos, Value * * args, Value & v)
 {
-    if (state.settings.pureEval)
+    if (state.settings.pureEval && !experimentalFeatureSettings.isEnabled(Xp::PureStorePathBuiltin))
         state.error<EvalError>(
             "'%s' is not allowed in pure evaluation mode",
             "builtins.storePath"
diff --git a/src/libutil/experimental-features.cc b/src/libutil/experimental-features.cc
index a0c955816e9..fb7217624b3 100644
--- a/src/libutil/experimental-features.cc
+++ b/src/libutil/experimental-features.cc
@@ -246,6 +246,19 @@ constexpr std::array<ExperimentalFeatureDetails, numXpFeatures> xpFeatureDetails
         )",
         .trackingUrl = "https://github.com/NixOS/nix/milestone/39",
     },
+    {
+        .tag = Xp::PureStorePathBuiltin,
+        .name = "pure-storepath-builtin",
+        .description = R"(
+            Allow the use of [`storePath`](@docroot@/language/builtins.md#builtins-storePath)
+            in pure evaluation mode. No consensus has been found as to whether `storePath`
+            should be considered pure or impure, see the following issue:
+
+            https://github.com/NixOS/nix/issues/5868
+        )",
+        // NOTE: This is not a milestone, since "tracking" this experimental feature really consists of discussing whether storePath should be pure or not.
+        .trackingUrl = "https://github.com/NixOS/nix/issues/5868",
+    },
     {
         .tag = Xp::ParseTomlTimestamps,
         .name = "parse-toml-timestamps",
diff --git a/src/libutil/experimental-features.hh b/src/libutil/experimental-features.hh
index 412bf08864d..65eaf27a2cf 100644
--- a/src/libutil/experimental-features.hh
+++ b/src/libutil/experimental-features.hh
@@ -30,6 +30,7 @@ enum struct ExperimentalFeature
     Cgroups,
     DaemonTrustOverride,
     DynamicDerivations,
+    PureStorePathBuiltin,
     ParseTomlTimestamps,
     ReadOnlyLocalStore,
     LocalOverlayStore,