diff --git a/linked-dependencies/matrix-react-sdk/src/components/structures/SpaceRoomView.tsx b/linked-dependencies/matrix-react-sdk/src/components/structures/SpaceRoomView.tsx
index 4564741a29..7e1ad0389b 100644
--- a/linked-dependencies/matrix-react-sdk/src/components/structures/SpaceRoomView.tsx
+++ b/linked-dependencies/matrix-react-sdk/src/components/structures/SpaceRoomView.tsx
@@ -173,7 +173,8 @@ const SpaceLandingAddButton: React.FC<{ space: Room }> = ({ space }) => {
                             showAddExistingRooms(space);
                         }}
                     />
-                    {canCreateSpace && (
+                    {/* :TCHAP: space-remove-public-and-subspace */}
+                    {/* {canCreateSpace && (
                         <IconizedContextMenuOption
                             label={_t("room_list|add_space_label")}
                             iconClassName="mx_RoomList_iconPlus"
@@ -186,7 +187,8 @@ const SpaceLandingAddButton: React.FC<{ space: Room }> = ({ space }) => {
                         >
                             <BetaPill />
                         </IconizedContextMenuOption>
-                    )}
+                    )} */}
+                    {/* end :TCHAP: */}
                 </IconizedContextMenuOptionList>
             </IconizedContextMenu>
         );
diff --git a/linked-dependencies/matrix-react-sdk/src/components/views/context_menus/SpaceContextMenu.tsx b/linked-dependencies/matrix-react-sdk/src/components/views/context_menus/SpaceContextMenu.tsx
index 5cb8351916..a899417a01 100644
--- a/linked-dependencies/matrix-react-sdk/src/components/views/context_menus/SpaceContextMenu.tsx
+++ b/linked-dependencies/matrix-react-sdk/src/components/views/context_menus/SpaceContextMenu.tsx
@@ -193,7 +193,8 @@ const SpaceContextMenu: React.FC<IProps> = ({ space, hideHeader, onFinished, ...
                         <BetaPill />
                     </IconizedContextMenuOption>
                 )}
-                {canAddSubSpaces && (
+                {/* :TCHAP: space-remove-public-and-subspace */}
+                {/* {canAddSubSpaces && (
                     <IconizedContextMenuOption
                         data-testid="new-subspace-option"
                         iconClassName="mx_SpacePanel_iconPlus"
@@ -202,7 +203,8 @@ const SpaceContextMenu: React.FC<IProps> = ({ space, hideHeader, onFinished, ...
                     >
                         <BetaPill />
                     </IconizedContextMenuOption>
-                )}
+                )} */}
+                {/* end :TCHAP: */}
             </>
         );
     }
diff --git a/linked-dependencies/matrix-react-sdk/src/components/views/rooms/RoomListHeader.tsx b/linked-dependencies/matrix-react-sdk/src/components/views/rooms/RoomListHeader.tsx
index bcd918eaf3..913995961c 100644
--- a/linked-dependencies/matrix-react-sdk/src/components/views/rooms/RoomListHeader.tsx
+++ b/linked-dependencies/matrix-react-sdk/src/components/views/rooms/RoomListHeader.tsx
@@ -269,7 +269,8 @@ const RoomListHeader: React.FC<IProps> = ({ onVisibilityChange }) => {
                         disabled={!canAddSubRooms}
                         title={!canAddSubRooms ? _t("spaces|error_no_permission_add_room") : undefined}
                     />
-                    {canCreateSpaces && (
+                    {/* :TCHAP: space-remove-public-and-subspace */}
+                    {/* {canCreateSpaces && (
                         <IconizedContextMenuOption
                             label={_t("room_list|add_space_label")}
                             iconClassName="mx_RoomListHeader_iconPlus"
@@ -284,7 +285,8 @@ const RoomListHeader: React.FC<IProps> = ({ onVisibilityChange }) => {
                         >
                             <BetaPill />
                         </IconizedContextMenuOption>
-                    )}
+                    )} */}
+                    {/* end :TCHAP: */}
                 </IconizedContextMenuOptionList>
             </IconizedContextMenu>
         );
diff --git a/linked-dependencies/matrix-react-sdk/src/components/views/spaces/SpaceCreateMenu.tsx b/linked-dependencies/matrix-react-sdk/src/components/views/spaces/SpaceCreateMenu.tsx
index a690d3494d..9fa62ebc8f 100644
--- a/linked-dependencies/matrix-react-sdk/src/components/views/spaces/SpaceCreateMenu.tsx
+++ b/linked-dependencies/matrix-react-sdk/src/components/views/spaces/SpaceCreateMenu.tsx
@@ -218,7 +218,8 @@ const SpaceCreateMenu: React.FC<{
     onFinished(): void;
 }> = ({ onFinished }) => {
     const cli = useMatrixClientContext();
-    const [visibility, setVisibility] = useState<Visibility | null>(null);
+    // const [visibility, setVisibility] = useState<Visibility | null>(null);
+    const [visibility, setVisibility] = useState<Visibility | null>(Visibility.Private); // :TCHAP: space-remove-public-and-subspace
     const [busy, setBusy] = useState<boolean>(false);
 
     const [name, setName] = useState("");
@@ -280,71 +281,109 @@ const SpaceCreateMenu: React.FC<{
     };
 
     let body;
-    if (visibility === null) {
-        body = (
-            <React.Fragment>
-                <h2>{_t("create_space|label")}</h2>
-                <p>{_t("create_space|explainer")}</p>
-
-                <SpaceCreateMenuType
-                    title={_t("common|public")}
-                    description={_t("create_space|public_description")}
-                    className="mx_SpaceCreateMenuType_public"
-                    onClick={() => setVisibility(Visibility.Public)}
-                />
-                <SpaceCreateMenuType
-                    title={_t("common|private")}
-                    description={_t("create_space|private_description")}
-                    className="mx_SpaceCreateMenuType_private"
-                    onClick={() => setVisibility(Visibility.Private)}
-                />
-
-                {supportsSpaceFiltering && (
-                    <AccessibleButton kind="primary_outline" onClick={onSearchClick}>
-                        {_t("create_space|search_public_button")}
-                    </AccessibleButton>
-                )}
-            </React.Fragment>
-        );
-    } else {
-        body = (
-            <React.Fragment>
-                <AccessibleButton
-                    className="mx_SpaceCreateMenu_back"
-                    onClick={() => setVisibility(null)}
-                    title={_t("action|go_back")}
-                />
-
-                <h2>
-                    {visibility === Visibility.Public
-                        ? _t("create_space|public_heading")
-                        : _t("create_space|private_heading")}
-                </h2>
-                <p>
-                    {_t("create_space|add_details_prompt")} {_t("create_space|add_details_prompt_2")}
-                </p>
-
-                <SpaceCreateForm
-                    busy={busy}
-                    onSubmit={onSpaceCreateClick}
-                    setAvatar={setAvatar}
-                    name={name}
-                    setName={setName}
-                    nameFieldRef={spaceNameField}
-                    topic={topic}
-                    setTopic={setTopic}
-                    alias={alias}
-                    setAlias={setAlias}
-                    showAliasField={visibility === Visibility.Public}
-                    aliasFieldRef={spaceAliasField}
-                />
+    // :TCHAP: space-remove-public-and-subspace
+    // if (visibility === null) {
+    //     body = (
+    //         <React.Fragment>
+    //             <h2>{_t("create_space|label")}</h2>
+    //             <p>{_t("create_space|explainer")}</p>
+
+    //             <SpaceCreateMenuType
+    //                 title={_t("common|public")}
+    //                 description={_t("create_space|public_description")}
+    //                 className="mx_SpaceCreateMenuType_public"
+    //                 onClick={() => setVisibility(Visibility.Public)}
+    //             />
+    //             <SpaceCreateMenuType
+    //                 title={_t("common|private")}
+    //                 description={_t("create_space|private_description")}
+    //                 className="mx_SpaceCreateMenuType_private"
+    //                 onClick={() => setVisibility(Visibility.Private)}
+    //             />
+
+    //             {supportsSpaceFiltering && (
+    //                 <AccessibleButton kind="primary_outline" onClick={onSearchClick}>
+    //                     {_t("create_space|search_public_button")}
+    //                 </AccessibleButton>
+    //             )}
+    //         </React.Fragment>
+    //     );
+    // } else {
+    //     body = (
+    //         <React.Fragment>
+    //             <AccessibleButton
+    //                 className="mx_SpaceCreateMenu_back"
+    //                 onClick={() => setVisibility(null)}
+    //                 title={_t("action|go_back")}
+    //             />
+
+    //             <h2>
+    //                 {visibility === Visibility.Public
+    //                     ? _t("create_space|public_heading")
+    //                     : _t("create_space|private_heading")}
+    //             </h2>
+    //             <p>
+    //                 {_t("create_space|add_details_prompt")} {_t("create_space|add_details_prompt_2")}
+    //             </p>
+
+    //             <SpaceCreateForm
+    //                 busy={busy}
+    //                 onSubmit={onSpaceCreateClick}
+    //                 setAvatar={setAvatar}
+    //                 name={name}
+    //                 setName={setName}
+    //                 nameFieldRef={spaceNameField}
+    //                 topic={topic}
+    //                 setTopic={setTopic}
+    //                 alias={alias}
+    //                 setAlias={setAlias}
+    //                 showAliasField={visibility === Visibility.Public}
+    //                 aliasFieldRef={spaceAliasField}
+    //             />
+
+    //             <AccessibleButton kind="primary" onClick={onSpaceCreateClick} disabled={busy}>
+    //                 {busy ? _t("create_space|creating") : _t("action|create")}
+    //             </AccessibleButton>
+    //         </React.Fragment>
+    //     );
+    // }
+    body = (
+        <React.Fragment>
+            <h2>
+                {_t("create_space|private_heading")}
+            </h2>
+            <p>
+                {_t("create_space|add_details_prompt")} {_t("create_space|add_details_prompt_2", {}, {
+                    a: (sub) => (
+                            <AccessibleButton kind="link_inline" onClick={() => {window.open("https://aide.tchap.beta.gouv.fr/","_blank")}}>
+                                {sub}
+                            </AccessibleButton>
+                        ),
+                    })
+                }
+            </p>
+
+            <SpaceCreateForm
+                busy={busy}
+                onSubmit={onSpaceCreateClick}
+                setAvatar={setAvatar}
+                name={name}
+                setName={setName}
+                nameFieldRef={spaceNameField}
+                topic={topic}
+                setTopic={setTopic}
+                alias={alias}
+                setAlias={setAlias}
+                showAliasField={visibility === Visibility.Public}
+                aliasFieldRef={spaceAliasField}
+            />
 
-                <AccessibleButton kind="primary" onClick={onSpaceCreateClick} disabled={busy}>
-                    {busy ? _t("create_space|creating") : _t("action|create")}
-                </AccessibleButton>
-            </React.Fragment>
-        );
-    }
+            <AccessibleButton kind="primary" onClick={onSpaceCreateClick} disabled={busy}>
+                {busy ? _t("create_space|creating") : _t("action|create")}
+            </AccessibleButton>
+        </React.Fragment>
+    );
+    // end :TCHAP:
 
     return (
         <ContextMenu
diff --git a/modules/tchap-translations/tchap_translations.json b/modules/tchap-translations/tchap_translations.json
index b05895e6e8..2a2dd35242 100644
--- a/modules/tchap-translations/tchap_translations.json
+++ b/modules/tchap-translations/tchap_translations.json
@@ -757,5 +757,13 @@
     "lasuite_numerique": {
         "en": "La suite numérique",
         "fr": "La suite numérique"
+    },
+    "create_space|add_details_prompt": {
+        "en": "A space is a dedicated folder in which you can organize your discussions by themes.",
+        "fr": "Un espace est un dossier privé dans lequel vous pouvez organiser vos conversations par thèmes."
+    },
+    "create_space|add_details_prompt_2": {
+        "en": "<a>Learn more </a>",
+        "fr": "<a>En savoir plus</a>"
     }
 }
diff --git a/modules/tchap-translations/tchap_translations_removed.json b/modules/tchap-translations/tchap_translations_removed.json
index 4744515c35..6305f0de64 100644
--- a/modules/tchap-translations/tchap_translations_removed.json
+++ b/modules/tchap-translations/tchap_translations_removed.json
@@ -47,5 +47,13 @@
     "onboarding|enable_notifications",
     "onboarding|enable_notifications_action",
     "onboarding|enable_notifications_description",
-    "onboarding|you_made_it"
+    "onboarding|you_made_it",
+    "create_space|search_public_button",
+    "create_space|private_description",
+    "create_space|public_description",
+    "create_space|explainer",
+    "create_space|public_heading",
+    "common|private",
+    "room_list|add_space_label",
+    "spaces|error_no_permission_add_space"
 ]
diff --git a/patches/subtree-modifications.json b/patches/subtree-modifications.json
index ee232a1cfc..cc9b10e143 100644
--- a/patches/subtree-modifications.json
+++ b/patches/subtree-modifications.json
@@ -43,5 +43,14 @@
         "files": [
             "src/components/views/dialogs/InviteDialog.tsx"
         ]
+    },
+    "space-remove-public-and-subspace": {
+        "issue": "https://github.com/tchapgouv/tchap-web-v4/issues/878",
+        "files": [
+            "src/components/views/spaces/SpaceCreateMenu.tsx",
+            "src/components/views/rooms/RoomListHeader.tsx",
+            "src/components/views/context_menus/SpaceContextMenu.tsx",
+            "src/components/structures/SpaceRoomView.tsx"
+        ]
     }
 }
\ No newline at end of file
diff --git a/res/themes/tchap-common/css/_tchap_custom.pcss b/res/themes/tchap-common/css/_tchap_custom.pcss
index 47cca781cf..dde94c48a0 100644
--- a/res/themes/tchap-common/css/_tchap_custom.pcss
+++ b/res/themes/tchap-common/css/_tchap_custom.pcss
@@ -63,6 +63,7 @@
     }
 }
 
-.mx_ThreadsActivityCentreButton .mx_ThreadsActivityCentreButton_Icon {
-    color: white;
+.mx_ThreadsActivityCentreButton .mx_ThreadsActivityCentreButton_Icon,
+.mx_ThreadsActivityCentreButton .mx_ThreadsActivityCentreButton_Text {
+    color: white !important;
 }
\ No newline at end of file