diff --git a/src/bonsai/bonsai/bim/module/project/operator.py b/src/bonsai/bonsai/bim/module/project/operator.py
index df6196b3d4..aa1c8b5403 100644
--- a/src/bonsai/bonsai/bim/module/project/operator.py
+++ b/src/bonsai/bonsai/bim/module/project/operator.py
@@ -341,13 +341,12 @@ class ChangeLibraryElement(bpy.types.Operator):
         return {"FINISHED"}
 
     def get_name(self, element: ifcopenshell.entity_instance) -> str:
-        if element.is_a("IfcProfileDef"):
-            return element.ProfileName or "Unnamed"
-        return element.Name or "Unnamed"
+        attr_name = tool.Project.get_library_element_attr_name(element)
+        return getattr(element, attr_name) or "Unnamed"
 
     def add_library_asset(self, name: str, ifc_definition_id: int) -> None:
         new = self.props.library_elements.add()
-        new.name = name
+        new["name"] = name
         new.ifc_definition_id = ifc_definition_id
         element = self.library_file.by_id(ifc_definition_id)
 
diff --git a/src/bonsai/bonsai/bim/module/project/prop.py b/src/bonsai/bonsai/bim/module/project/prop.py
index c94de56614..e56826be57 100644
--- a/src/bonsai/bonsai/bim/module/project/prop.py
+++ b/src/bonsai/bonsai/bim/module/project/prop.py
@@ -36,6 +36,7 @@ from bpy.props import (
     StringProperty,
 )
 from typing import TYPE_CHECKING, Literal, Union, get_args
+from typing_extensions import assert_never
 
 
 def get_export_schema(self: "BIMProjectProperties", context: bpy.types.Context) -> list[tuple[str, str, str]]:
@@ -147,11 +148,35 @@ def update_filter_mode(self: "BIMProjectProperties", context: bpy.types.Context)
             new.total_elements = len(ifcopenshell.util.element.get_types(ifc_type))
 
 
+def update_library_element_name(self: "LibraryElement", context: bpy.types.Context) -> None:
+    library_file = IfcStore.library_file
+    assert library_file
+
+    if self.element_type == "CLASS":
+        raise Exception("Unexpected element type for rename: 'CLASS'.")
+
+    def update_element_name(ifc_definition_id: int, name: str) -> None:
+        element = library_file.by_id(ifc_definition_id)
+        attr_name = tool.Project.get_library_element_attr_name(element)
+        previous_name = getattr(element, attr_name)
+        if name == previous_name:
+            return
+        setattr(element, attr_name, name)
+
+    if self.element_type == "ASSET":
+        update_element_name(self.ifc_definition_id, self.name)
+    elif self.element_type == "LIBRARY":
+        assert self.ifc_definition_id, "Renaming for unassigned elements library is not supported."
+        update_element_name(self.ifc_definition_id, self.name)
+    else:
+        assert_never(self.element_type)
+
+
 LibraryElementType = Literal["ASSET", "CLASS", "LIBRARY"]
 
 
 class LibraryElement(PropertyGroup):
-    name: StringProperty(name="Name")
+    name: StringProperty(name="Name", update=update_library_element_name)
     element_type: EnumProperty(items=[(i, i, "") for i in get_args(LibraryElementType)], name="Element Type")
     # Asset group.
     asset_count: IntProperty(name="Asset Count")
@@ -372,7 +397,7 @@ class BIMProjectProperties(PropertyGroup):
 
     def add_library_project_library(self, name: str, asset_count: int, ifc_definition_id: int) -> LibraryElement:
         new = self.library_elements.add()
-        new.name = name
+        new["name"] = name
         new.asset_count = asset_count
         new.element_type = "LIBRARY"
         new.ifc_definition_id = ifc_definition_id
@@ -380,7 +405,7 @@ class BIMProjectProperties(PropertyGroup):
 
     def add_library_asset_class(self, name: str, asset_count: int) -> LibraryElement:
         new = self.library_elements.add()
-        new.name = name
+        new["name"] = name
         new.asset_count = asset_count
         new.element_type = "CLASS"
         return new
diff --git a/src/bonsai/bonsai/bim/module/project/ui.py b/src/bonsai/bonsai/bim/module/project/ui.py
index 361f2d1a61..cd0c69512f 100644
--- a/src/bonsai/bonsai/bim/module/project/ui.py
+++ b/src/bonsai/bonsai/bim/module/project/ui.py
@@ -517,7 +517,10 @@ class BIM_UL_library(UIList):
                 op.element_name = item.name
                 op.breadcrumb_type = item.element_type
                 op.library_id = item.ifc_definition_id
-            row.label(text=item.name)
+            if item.ifc_definition_id:
+                row.prop(item, "name", text="", emboss=False)
+            else:
+                row.label(text=item.name)
             if item.ifc_definition_id and item.is_declarable:
                 if item.is_declared:
                     op = row.operator("bim.unassign_library_declaration", text="", icon="KEYFRAME_HLT", emboss=False)
diff --git a/src/bonsai/bonsai/tool/project.py b/src/bonsai/bonsai/tool/project.py
index ae966b49de..7b529cdea9 100644
--- a/src/bonsai/bonsai/tool/project.py
+++ b/src/bonsai/bonsai/tool/project.py
@@ -375,3 +375,9 @@ class Project(bonsai.core.tool.Project):
             props.add_library_project_library(
                 project_library.Name or "Unnamed", len(library_elements), project_library.id()
             )
+
+    @classmethod
+    def get_library_element_attr_name(cls, library_element: ifcopenshell.entity_instance) -> str:
+        if library_element.is_a("IfcProfileDef"):
+            return "ProfileName"
+        return "Name"