diff --git a/src/RoomInvite.js b/src/RoomInvite.js
index cfea51100b..b2382e206f 100644
--- a/src/RoomInvite.js
+++ b/src/RoomInvite.js
@@ -54,7 +54,7 @@ export function showStartChatInviteDialog() {
         placeholder: _t("Email, name or Matrix ID"),
         validAddressTypes,
         button: _t("Start Chat"),
-        onFinished: _onStartChatFinished,
+        onFinished: _onStartDmFinished,
     });
 }
 
@@ -96,7 +96,8 @@ export function isValid3pidInvite(event) {
     return true;
 }
 
-function _onStartChatFinished(shouldInvite, addrs) {
+// TODO: Immutable DMs replaces this
+function _onStartDmFinished(shouldInvite, addrs) {
     if (!shouldInvite) return;
 
     const addrTexts = addrs.map((addr) => addr.address);
@@ -104,32 +105,19 @@ function _onStartChatFinished(shouldInvite, addrs) {
     if (_isDmChat(addrTexts)) {
         const rooms = _getDirectMessageRooms(addrTexts[0]);
         if (rooms.length > 0) {
-            // A Direct Message room already exists for this user, so select a
-            // room from a list that is similar to the one in MemberInfo panel
-            const ChatCreateOrReuseDialog = sdk.getComponent("views.dialogs.ChatCreateOrReuseDialog");
-            const close = Modal.createTrackedDialog('Create or Reuse', '', ChatCreateOrReuseDialog, {
-                userId: addrTexts[0],
-                onNewDMClick: () => {
-                    dis.dispatch({
-                        action: 'start_chat',
-                        user_id: addrTexts[0],
-                    });
-                    close(true);
-                },
-                onExistingRoomSelected: (roomId) => {
-                    dis.dispatch({
-                        action: 'view_room',
-                        room_id: roomId,
-                    });
-                    close(true);
-                },
-            }).close;
+            // A Direct Message room already exists for this user, so reuse it
+            dis.dispatch({
+                action: 'view_room',
+                room_id: rooms[0],
+                should_peek: false,
+                joining: false,
+            });
         } else {
             // Start a new DM chat
             createRoom({dmUserId: addrTexts[0]}).catch((err) => {
                 const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
-                Modal.createTrackedDialog('Failed to invite user', '', ErrorDialog, {
-                    title: _t("Failed to invite user"),
+                Modal.createTrackedDialog('Failed to start chat', '', ErrorDialog, {
+                    title: _t("Failed to start chat"),
                     description: ((err && err.message) ? err.message : _t("Operation failed")),
                 });
             });
@@ -138,8 +126,8 @@ function _onStartChatFinished(shouldInvite, addrs) {
         // Start a new DM chat
         createRoom({dmUserId: addrTexts[0]}).catch((err) => {
             const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
-            Modal.createTrackedDialog('Failed to invite user', '', ErrorDialog, {
-                title: _t("Failed to invite user"),
+            Modal.createTrackedDialog('Failed to start chat', '', ErrorDialog, {
+                title: _t("Failed to start chat"),
                 description: ((err && err.message) ? err.message : _t("Operation failed")),
             });
         });
@@ -181,6 +169,7 @@ function _onRoomInviteFinished(roomId, shouldInvite, addrs) {
     });
 }
 
+// TODO: Immutable DMs replaces this
 function _isDmChat(addrTexts) {
     if (addrTexts.length === 1 && getAddressType(addrTexts[0]) === 'mx-user-id') {
         return true;
diff --git a/src/components/structures/GroupView.js b/src/components/structures/GroupView.js
index 7bf5400942..d5fa8fa5ae 100644
--- a/src/components/structures/GroupView.js
+++ b/src/components/structures/GroupView.js
@@ -343,7 +343,6 @@ const FeaturedUser = React.createClass({
         dis.dispatch({
             action: 'view_start_chat_or_reuse',
             user_id: this.props.summaryInfo.user_id,
-            go_home_on_cancel: false,
         });
     },
 
diff --git a/src/components/structures/MatrixChat.js b/src/components/structures/MatrixChat.js
index db5b7d034b..bcc0923f14 100644
--- a/src/components/structures/MatrixChat.js
+++ b/src/components/structures/MatrixChat.js
@@ -584,7 +584,7 @@ export default React.createClass({
                 this._setMxId(payload);
                 break;
             case 'view_start_chat_or_reuse':
-                this._chatCreateOrReuse(payload.user_id, payload.go_home_on_cancel);
+                this._chatCreateOrReuse(payload.user_id);
                 break;
             case 'view_create_chat':
                 showStartChatInviteDialog();
@@ -945,12 +945,7 @@ export default React.createClass({
         });
     },
 
-    _chatCreateOrReuse: function(userId, goHomeOnCancel) {
-        if (goHomeOnCancel === undefined) goHomeOnCancel = true;
-
-        const ChatCreateOrReuseDialog = sdk.getComponent(
-            'views.dialogs.ChatCreateOrReuseDialog',
-        );
+    _chatCreateOrReuse: function(userId) {
         // Use a deferred action to reshow the dialog once the user has registered
         if (MatrixClientPeg.get().isGuest()) {
             // No point in making 2 DMs with welcome bot. This assumes view_set_mxid will
@@ -975,30 +970,23 @@ export default React.createClass({
             return;
         }
 
-        const close = Modal.createTrackedDialog('Chat create or reuse', '', ChatCreateOrReuseDialog, {
-            userId: userId,
-            onFinished: (success) => {
-                if (!success && goHomeOnCancel) {
-                    // Dialog cancelled, default to home
-                    dis.dispatch({ action: 'view_home_page' });
-                }
-            },
-            onNewDMClick: () => {
-                dis.dispatch({
-                    action: 'start_chat',
-                    user_id: userId,
-                });
-                // Close the dialog, indicate success (calls onFinished(true))
-                close(true);
-            },
-            onExistingRoomSelected: (roomId) => {
-                dis.dispatch({
-                    action: 'view_room',
-                    room_id: roomId,
-                });
-                close(true);
-            },
-        }).close;
+        // TODO: Immutable DMs replaces this
+
+        const client = MatrixClientPeg.get();
+        const dmRoomMap = new DMRoomMap(client);
+        const dmRooms = dmRoomMap.getDMRoomsForUserId(userId);
+
+        if (dmRooms.length > 0) {
+            dis.dispatch({
+                action: 'view_room',
+                room_id: dmRooms[0],
+            });
+        } else {
+            dis.dispatch({
+                action: 'start_chat',
+                user_id: userId,
+            });
+        }
     },
 
     _leaveRoomWarnings: function(roomId) {
diff --git a/src/components/views/dialogs/ChatCreateOrReuseDialog.js b/src/components/views/dialogs/ChatCreateOrReuseDialog.js
deleted file mode 100644
index b8e5b7d0a4..0000000000
--- a/src/components/views/dialogs/ChatCreateOrReuseDialog.js
+++ /dev/null
@@ -1,203 +0,0 @@
-/*
-Copyright 2017 Vector Creations Ltd
-Copyright 2018 New Vector Ltd
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-import React from 'react';
-import PropTypes from 'prop-types';
-import sdk from '../../../index';
-import { _t } from '../../../languageHandler';
-import MatrixClientPeg from '../../../MatrixClientPeg';
-import DMRoomMap from '../../../utils/DMRoomMap';
-import AccessibleButton from '../elements/AccessibleButton';
-import Unread from '../../../Unread';
-import classNames from 'classnames';
-
-export default class ChatCreateOrReuseDialog extends React.Component {
-    constructor(props) {
-        super(props);
-        this.onFinished = this.onFinished.bind(this);
-        this.onRoomTileClick = this.onRoomTileClick.bind(this);
-
-        this.state = {
-            tiles: [],
-            profile: {
-                displayName: null,
-                avatarUrl: null,
-            },
-            profileError: null,
-        };
-    }
-
-    componentWillMount() {
-        const client = MatrixClientPeg.get();
-
-        const dmRoomMap = new DMRoomMap(client);
-        const dmRooms = dmRoomMap.getDMRoomsForUserId(this.props.userId);
-
-        const RoomTile = sdk.getComponent("rooms.RoomTile");
-
-        const tiles = [];
-        for (const roomId of dmRooms) {
-            const room = client.getRoom(roomId);
-            if (room && room.getMyMembership() === "join") {
-                const member = room.getMember(this.props.userId);
-                if (!member || member.membership !== "join") {
-                    continue;
-                }
-
-                const isInvite = room.getMyMembership() === "invite";
-                const highlight = room.getUnreadNotificationCount('highlight') > 0 || isInvite;
-                tiles.push(
-                    <RoomTile key={room.roomId} room={room}
-                        transparent={true}
-                        collapsed={false}
-                        selected={false}
-                        unread={Unread.doesRoomHaveUnreadMessages(room)}
-                        highlight={highlight}
-                        isInvite={isInvite}
-                        onClick={this.onRoomTileClick}
-                    />,
-                );
-            }
-        }
-
-        this.setState({
-            tiles: tiles,
-        });
-
-        if (tiles.length === 0) {
-            this.setState({
-                busyProfile: true,
-            });
-            MatrixClientPeg.get().getProfileInfo(this.props.userId).done((resp) => {
-                const profile = {
-                    displayName: resp.displayname,
-                    avatarUrl: null,
-                };
-                if (resp.avatar_url) {
-                    profile.avatarUrl = MatrixClientPeg.get().mxcUrlToHttp(
-                        resp.avatar_url, 48, 48, "crop",
-                    );
-                }
-                this.setState({
-                    busyProfile: false,
-                    profile: profile,
-                });
-            }, (err) => {
-                console.error(
-                    'Unable to get profile for user ' + this.props.userId + ':',
-                    err,
-                );
-                this.setState({
-                    busyProfile: false,
-                    profileError: err,
-                });
-            });
-        }
-    }
-
-    onRoomTileClick(roomId) {
-        this.props.onExistingRoomSelected(roomId);
-    }
-
-    onFinished() {
-        this.props.onFinished(false);
-    }
-
-    render() {
-        let title = '';
-        let content = null;
-        if (this.state.tiles.length > 0) {
-            // Show the existing rooms with a "+" to add a new dm
-            title = _t('Create a new chat or reuse an existing one');
-            const labelClasses = classNames({
-                mx_MemberInfo_createRoom_label: true,
-                mx_RoomTile_name: true,
-            });
-            const startNewChat = <AccessibleButton
-                className="mx_MemberInfo_createRoom"
-                onClick={this.props.onNewDMClick}
-            >
-                <div className="mx_RoomTile_avatar">
-                    <img src={require("../../../../res/img/create-big.svg")} width="26" height="26" />
-                </div>
-                <div className={labelClasses}><i>{ _t("Start new chat") }</i></div>
-            </AccessibleButton>;
-            content = <div className="mx_Dialog_content" id='mx_Dialog_content'>
-                { _t('You already have existing direct chats with this user:') }
-                <div className="mx_ChatCreateOrReuseDialog_tiles">
-                    { this.state.tiles }
-                    { startNewChat }
-                </div>
-            </div>;
-        } else {
-            // Show the avatar, name and a button to confirm that a new chat is requested
-            const BaseAvatar = sdk.getComponent('avatars.BaseAvatar');
-            const DialogButtons = sdk.getComponent('views.elements.DialogButtons');
-            const Spinner = sdk.getComponent('elements.Spinner');
-            title = _t('Start chatting');
-
-            let profile = null;
-            if (this.state.busyProfile) {
-                profile = <Spinner />;
-            } else if (this.state.profileError) {
-                profile = <div className="error" role="alert">
-                    Unable to load profile information for { this.props.userId }
-                </div>;
-            } else {
-                profile = <div className="mx_ChatCreateOrReuseDialog_profile">
-                    <BaseAvatar
-                        name={this.state.profile.displayName || this.props.userId}
-                        url={this.state.profile.avatarUrl}
-                        width={48} height={48}
-                    />
-                    <div className="mx_ChatCreateOrReuseDialog_profile_name">
-                        { this.state.profile.displayName || this.props.userId }
-                    </div>
-                </div>;
-            }
-            content = <div>
-                <div className="mx_Dialog_content" id='mx_Dialog_content'>
-                    <p>
-                        { _t('Click on the button below to start chatting!') }
-                    </p>
-                    { profile }
-                </div>
-                <DialogButtons primaryButton={_t('Start Chatting')}
-                    onPrimaryButtonClick={this.props.onNewDMClick} focus={true} />
-            </div>;
-        }
-
-        const BaseDialog = sdk.getComponent('views.dialogs.BaseDialog');
-        return (
-            <BaseDialog className='mx_ChatCreateOrReuseDialog'
-                onFinished={this.onFinished}
-                title={title}
-                contentId='mx_Dialog_content'
-            >
-                { content }
-            </BaseDialog>
-        );
-    }
-}
-
-ChatCreateOrReuseDialog.propTypes = {
-    userId: PropTypes.string.isRequired,
-    // Called when clicking outside of the dialog
-    onFinished: PropTypes.func.isRequired,
-    onNewDMClick: PropTypes.func.isRequired,
-    onExistingRoomSelected: PropTypes.func.isRequired,
-};
diff --git a/src/components/views/rooms/MemberInfo.js b/src/components/views/rooms/MemberInfo.js
index 8cabb5af48..629790a743 100644
--- a/src/components/views/rooms/MemberInfo.js
+++ b/src/components/views/rooms/MemberInfo.js
@@ -789,6 +789,7 @@ module.exports = React.createClass({
         let spinner;
 
         if (this.props.member.userId !== this.context.matrixClient.credentials.userId) {
+            // TODO: Immutable DMs replaces a lot of this
             const dmRoomMap = new DMRoomMap(this.context.matrixClient);
             // dmRooms will not include dmRooms that we have been invited into but did not join.
             // Because DMRoomMap runs off account_data[m.direct] which is only set on join of dm room.
@@ -830,7 +831,7 @@ module.exports = React.createClass({
                 mx_MemberInfo_createRoom_label: true,
                 mx_RoomTile_name: true,
             });
-            const startNewChat = <AccessibleButton
+            let startNewChat = <AccessibleButton
                 className="mx_MemberInfo_createRoom"
                 onClick={this.onNewDMClick}
             >
@@ -840,6 +841,8 @@ module.exports = React.createClass({
                 <div className={labelClasses}><i>{ _t("Start a chat") }</i></div>
             </AccessibleButton>;
 
+            if (tiles.length > 0) startNewChat = null; // Don't offer a button for a new chat if we have one.
+
             startChat = <div>
                 <h3>{ _t("Direct chats") }</h3>
                 { tiles }
diff --git a/src/i18n/strings/en_EN.json b/src/i18n/strings/en_EN.json
index 458b24ee07..8d43e7087c 100644
--- a/src/i18n/strings/en_EN.json
+++ b/src/i18n/strings/en_EN.json
@@ -114,7 +114,7 @@
     "Invite new room members": "Invite new room members",
     "Who would you like to add to this room?": "Who would you like to add to this room?",
     "Send Invites": "Send Invites",
-    "Failed to invite user": "Failed to invite user",
+    "Failed to start chat": "Failed to start chat",
     "Operation failed": "Operation failed",
     "Failed to invite": "Failed to invite",
     "Failed to invite users to the room:": "Failed to invite users to the room:",
@@ -1124,12 +1124,6 @@
     "Unable to load commit detail: %(msg)s": "Unable to load commit detail: %(msg)s",
     "Unavailable": "Unavailable",
     "Changelog": "Changelog",
-    "Create a new chat or reuse an existing one": "Create a new chat or reuse an existing one",
-    "Start new chat": "Start new chat",
-    "You already have existing direct chats with this user:": "You already have existing direct chats with this user:",
-    "Start chatting": "Start chatting",
-    "Click on the button below to start chatting!": "Click on the button below to start chatting!",
-    "Start Chatting": "Start Chatting",
     "You cannot delete this message. (%(code)s)": "You cannot delete this message. (%(code)s)",
     "Removing…": "Removing…",
     "Confirm Removal": "Confirm Removal",