diff --git a/src/openrct2-ui/windows/Banner.cpp b/src/openrct2-ui/windows/Banner.cpp
index 41a04efc7b..89a30b7913 100644
--- a/src/openrct2-ui/windows/Banner.cpp
+++ b/src/openrct2-ui/windows/Banner.cpp
@@ -133,10 +133,9 @@ rct_window* window_banner_open(rct_windownumber number)
     window_init_scroll_widgets(w);
 
     auto banner = GetBanner(w->number);
-    int32_t view_x = banner->position.x << 5;
-    int32_t view_y = banner->position.y << 5;
+    auto bannerViewPos = banner->position.ToCoordsXY().ToTileCentre();
 
-    TileElement* tile_element = map_get_first_element_at({ view_x, view_y });
+    TileElement* tile_element = map_get_first_element_at(bannerViewPos);
     if (tile_element == nullptr)
         return nullptr;
     while (1)
@@ -152,14 +151,12 @@ rct_window* window_banner_open(rct_windownumber number)
     int32_t view_z = tile_element->GetBaseZ();
     w->frame_no = view_z;
 
-    view_x += 16;
-    view_y += 16;
-
     // Create viewport
     viewportWidget = &window_banner_widgets[WIDX_VIEWPORT];
     viewport_create(
-        w, w->x + viewportWidget->left + 1, w->y + viewportWidget->top + 1, (viewportWidget->right - viewportWidget->left) - 2,
-        (viewportWidget->bottom - viewportWidget->top) - 2, 0, view_x, view_y, view_z, 0, SPRITE_INDEX_NULL);
+        w, { w->x + viewportWidget->left + 1, w->y + viewportWidget->top + 1 },
+        (viewportWidget->right - viewportWidget->left) - 2, (viewportWidget->bottom - viewportWidget->top) - 2, 0,
+        { bannerViewPos, view_z }, 0, SPRITE_INDEX_NULL);
 
     w->viewport->flags = gConfigGeneral.always_show_gridlines ? VIEWPORT_FLAG_GRIDLINES : 0;
     w->Invalidate();
@@ -347,15 +344,14 @@ static void window_banner_viewport_rotate(rct_window* w)
 
     auto banner = GetBanner(w->number);
 
-    int32_t view_x = (banner->position.x << 5) + 16;
-    int32_t view_y = (banner->position.y << 5) + 16;
-    int32_t view_z = w->frame_no;
+    auto bannerViewPos = CoordsXYZ{ banner->position.ToCoordsXY().ToTileCentre(), w->frame_no };
 
     // Create viewport
     rct_widget* viewportWidget = &window_banner_widgets[WIDX_VIEWPORT];
     viewport_create(
-        w, w->x + viewportWidget->left + 1, w->y + viewportWidget->top + 1, (viewportWidget->right - viewportWidget->left) - 1,
-        (viewportWidget->bottom - viewportWidget->top) - 1, 0, view_x, view_y, view_z, 0, SPRITE_INDEX_NULL);
+        w, { w->x + viewportWidget->left + 1, w->y + viewportWidget->top + 1 },
+        (viewportWidget->right - viewportWidget->left) - 1, (viewportWidget->bottom - viewportWidget->top) - 1, 0,
+        bannerViewPos, 0, SPRITE_INDEX_NULL);
 
     if (w->viewport != nullptr)
         w->viewport->flags = gConfigGeneral.always_show_gridlines ? VIEWPORT_FLAG_GRIDLINES : 0;
diff --git a/src/openrct2-ui/windows/EditorMain.cpp b/src/openrct2-ui/windows/EditorMain.cpp
index 738dbe6913..b5db9e0bc8 100644
--- a/src/openrct2-ui/windows/EditorMain.cpp
+++ b/src/openrct2-ui/windows/EditorMain.cpp
@@ -66,7 +66,8 @@ rct_window* window_editor_main_open()
         &window_editor_main_events, WC_MAIN_WINDOW, WF_STICK_TO_BACK);
     window->widgets = window_editor_main_widgets;
 
-    viewport_create(window, window->x, window->y, window->width, window->height, 0, 0x0FFF, 0x0FFF, 0, 0x1, SPRITE_INDEX_NULL);
+    viewport_create(
+        window, { window->x, window->y }, window->width, window->height, 0, { 0x0FFF, 0x0FFF, 0 }, 0x1, SPRITE_INDEX_NULL);
     window->viewport->flags |= 0x0400;
 
     gCurrentRotation = 0;
diff --git a/src/openrct2-ui/windows/Guest.cpp b/src/openrct2-ui/windows/Guest.cpp
index b8f9601235..27a7d9a778 100644
--- a/src/openrct2-ui/windows/Guest.cpp
+++ b/src/openrct2-ui/windows/Guest.cpp
@@ -824,13 +824,13 @@ void window_guest_viewport_init(rct_window* w)
         if (peep->state != PEEP_STATE_PICKED && w->viewport == nullptr)
         {
             auto view_widget = &w->widgets[WIDX_VIEWPORT];
-            int32_t x = view_widget->left + 1 + w->x;
-            int32_t y = view_widget->top + 1 + w->y;
+            auto screenPos = ScreenCoordsXY{ view_widget->left + 1 + w->x, view_widget->top + 1 + w->y };
             int32_t width = view_widget->right - view_widget->left - 1;
             int32_t height = view_widget->bottom - view_widget->top - 1;
 
             viewport_create(
-                w, x, y, width, height, 0, focus.coordinate.x, focus.coordinate.y & VIEWPORT_FOCUS_Y_MASK, focus.coordinate.z,
+                w, screenPos, width, height, 0,
+                { focus.coordinate.x, focus.coordinate.y & VIEWPORT_FOCUS_Y_MASK, focus.coordinate.z },
                 focus.sprite.type & VIEWPORT_FOCUS_TYPE_MASK, focus.sprite.sprite_id);
             if (w->viewport != nullptr && reCreateViewport)
             {
diff --git a/src/openrct2-ui/windows/Main.cpp b/src/openrct2-ui/windows/Main.cpp
index a98f3acf21..bcce59b4f0 100644
--- a/src/openrct2-ui/windows/Main.cpp
+++ b/src/openrct2-ui/windows/Main.cpp
@@ -68,7 +68,8 @@ rct_window* window_main_open()
         WF_STICK_TO_BACK);
     window->widgets = window_main_widgets;
 
-    viewport_create(window, window->x, window->y, window->width, window->height, 0, 0x0FFF, 0x0FFF, 0, 0x1, SPRITE_INDEX_NULL);
+    viewport_create(
+        window, { window->x, window->y }, window->width, window->height, 0, { 0x0FFF, 0x0FFF, 0 }, 0x1, SPRITE_INDEX_NULL);
     window->viewport->flags |= VIEWPORT_FLAG_SOUND_ON;
     gCurrentRotation = 0;
     gShowGridLinesRefCount = 0;
diff --git a/src/openrct2-ui/windows/Park.cpp b/src/openrct2-ui/windows/Park.cpp
index 9bd1f8a1a3..36b1897259 100644
--- a/src/openrct2-ui/windows/Park.cpp
+++ b/src/openrct2-ui/windows/Park.cpp
@@ -931,9 +931,9 @@ static void window_park_init_viewport(rct_window* w)
         {
             rct_widget* viewportWidget = &window_park_entrance_widgets[WIDX_VIEWPORT];
             viewport_create(
-                w, w->x + viewportWidget->left + 1, w->y + viewportWidget->top + 1,
-                (viewportWidget->right - viewportWidget->left) - 1, (viewportWidget->bottom - viewportWidget->top) - 1, 0, x, y,
-                z, w->viewport_focus_sprite.type & VIEWPORT_FOCUS_TYPE_MASK, SPRITE_INDEX_NULL);
+                w, { w->x + viewportWidget->left + 1, w->y + viewportWidget->top + 1 },
+                (viewportWidget->right - viewportWidget->left) - 1, (viewportWidget->bottom - viewportWidget->top) - 1, 0,
+                { x, y, z }, w->viewport_focus_sprite.type & VIEWPORT_FOCUS_TYPE_MASK, SPRITE_INDEX_NULL);
             w->flags |= (1 << 2);
             w->Invalidate();
         }
diff --git a/src/openrct2-ui/windows/Player.cpp b/src/openrct2-ui/windows/Player.cpp
index d77081a863..d94a7e363b 100644
--- a/src/openrct2-ui/windows/Player.cpp
+++ b/src/openrct2-ui/windows/Player.cpp
@@ -581,7 +581,8 @@ static void window_player_set_page(rct_window* w, int32_t page)
     {
         if (w->viewport == nullptr)
         {
-            viewport_create(w, w->x, w->y, w->width, w->height, 0, 128 * 32, 128 * 32, 0, 1, SPRITE_INDEX_NULL);
+            viewport_create(
+                w, { w->x, w->y }, w->width, w->height, 0, TileCoordsXYZ(128, 128, 0).ToCoordsXYZ(), 1, SPRITE_INDEX_NULL);
             w->flags |= WF_NO_SCROLLING;
             window_event_invalidate_call(w);
             window_player_update_viewport(w, false);
diff --git a/src/openrct2-ui/windows/Ride.cpp b/src/openrct2-ui/windows/Ride.cpp
index 8465e5c856..a9ebdfdf62 100644
--- a/src/openrct2-ui/windows/Ride.cpp
+++ b/src/openrct2-ui/windows/Ride.cpp
@@ -1974,13 +1974,13 @@ static void window_ride_init_viewport(rct_window* w)
     {
         rct_widget* view_widget = &w->widgets[WIDX_VIEWPORT];
 
-        int32_t x = view_widget->left + 1 + w->x;
-        int32_t y = view_widget->top + 1 + w->y;
+        auto screenPos = ScreenCoordsXY{ view_widget->left + 1 + w->x, view_widget->top + 1 + w->y };
         int32_t width = view_widget->right - view_widget->left - 1;
         int32_t height = view_widget->bottom - view_widget->top - 1;
         viewport_create(
-            w, x, y, width, height, focus.coordinate.zoom, focus.coordinate.x, focus.coordinate.y & VIEWPORT_FOCUS_Y_MASK,
-            focus.coordinate.z, focus.sprite.type & VIEWPORT_FOCUS_TYPE_MASK, focus.sprite.sprite_id);
+            w, screenPos, width, height, focus.coordinate.zoom,
+            { focus.coordinate.x, focus.coordinate.y & VIEWPORT_FOCUS_Y_MASK, focus.coordinate.z },
+            focus.sprite.type & VIEWPORT_FOCUS_TYPE_MASK, focus.sprite.sprite_id);
 
         w->flags |= WF_NO_SCROLLING;
         w->Invalidate();
diff --git a/src/openrct2-ui/windows/Sign.cpp b/src/openrct2-ui/windows/Sign.cpp
index 8499a4aa8e..499fed40af 100644
--- a/src/openrct2-ui/windows/Sign.cpp
+++ b/src/openrct2-ui/windows/Sign.cpp
@@ -156,10 +156,9 @@ rct_window* window_sign_open(rct_windownumber number)
     window_init_scroll_widgets(w);
 
     auto banner = GetBanner(w->number);
-    int32_t view_x = banner->position.x << 5;
-    int32_t view_y = banner->position.y << 5;
+    auto signViewPos = banner->position.ToCoordsXY().ToTileCentre();
 
-    TileElement* tile_element = map_get_first_element_at({ view_x, view_y });
+    TileElement* tile_element = map_get_first_element_at(signViewPos);
     if (tile_element == nullptr)
         return nullptr;
 
@@ -186,14 +185,12 @@ rct_window* window_sign_open(rct_windownumber number)
     w->var_492 = tile_element->AsLargeScenery()->GetSecondaryColour();
     w->var_48C = tile_element->AsLargeScenery()->GetEntryIndex();
 
-    view_x += 16;
-    view_y += 16;
-
     // Create viewport
     viewportWidget = &window_sign_widgets[WIDX_VIEWPORT];
     viewport_create(
-        w, w->x + viewportWidget->left + 1, w->y + viewportWidget->top + 1, (viewportWidget->right - viewportWidget->left) - 1,
-        (viewportWidget->bottom - viewportWidget->top) - 1, 0, view_x, view_y, view_z, 0, SPRITE_INDEX_NULL);
+        w, { w->x + viewportWidget->left + 1, w->y + viewportWidget->top + 1 },
+        (viewportWidget->right - viewportWidget->left) - 1, (viewportWidget->bottom - viewportWidget->top) - 1, 0,
+        { signViewPos, view_z }, 0, SPRITE_INDEX_NULL);
 
     w->viewport->flags = gConfigGeneral.always_show_gridlines ? VIEWPORT_FLAG_GRIDLINES : 0;
     w->Invalidate();
@@ -365,15 +362,14 @@ static void window_sign_viewport_rotate(rct_window* w)
 
     auto banner = GetBanner(w->number);
 
-    int32_t view_x = (banner->position.x << 5) + 16;
-    int32_t view_y = (banner->position.y << 5) + 16;
-    int32_t view_z = w->frame_no;
+    auto signViewPos = CoordsXYZ{ banner->position.ToCoordsXY().ToTileCentre(), w->frame_no };
 
     // Create viewport
     rct_widget* viewportWidget = &window_sign_widgets[WIDX_VIEWPORT];
     viewport_create(
-        w, w->x + viewportWidget->left + 1, w->y + viewportWidget->top + 1, (viewportWidget->right - viewportWidget->left) - 1,
-        (viewportWidget->bottom - viewportWidget->top) - 1, 0, view_x, view_y, view_z, 0, SPRITE_INDEX_NULL);
+        w, { w->x + viewportWidget->left + 1, w->y + viewportWidget->top + 1 },
+        (viewportWidget->right - viewportWidget->left) - 1, (viewportWidget->bottom - viewportWidget->top) - 1, 0, signViewPos,
+        0, SPRITE_INDEX_NULL);
     if (w->viewport != nullptr)
         w->viewport->flags = gConfigGeneral.always_show_gridlines ? VIEWPORT_FLAG_GRIDLINES : 0;
     w->Invalidate();
@@ -405,10 +401,9 @@ rct_window* window_sign_small_open(rct_windownumber number)
     w->colours[2] = COLOUR_DARK_BROWN;
 
     auto banner = GetBanner(w->number);
-    int32_t view_x = banner->position.x << 5;
-    int32_t view_y = banner->position.y << 5;
+    auto signViewPos = banner->position.ToCoordsXY().ToTileCentre();
 
-    TileElement* tile_element = map_get_first_element_at({ view_x, view_y });
+    TileElement* tile_element = map_get_first_element_at(signViewPos);
     if (tile_element == nullptr)
         return nullptr;
 
@@ -433,14 +428,12 @@ rct_window* window_sign_small_open(rct_windownumber number)
     w->var_492 = tile_element->AsWall()->GetSecondaryColour();
     w->var_48C = tile_element->AsWall()->GetEntryIndex();
 
-    view_x += 16;
-    view_y += 16;
-
     // Create viewport
     viewportWidget = &window_sign_widgets[WIDX_VIEWPORT];
     viewport_create(
-        w, w->x + viewportWidget->left + 1, w->y + viewportWidget->top + 1, (viewportWidget->right - viewportWidget->left) - 1,
-        (viewportWidget->bottom - viewportWidget->top) - 1, 0, view_x, view_y, view_z, 0, SPRITE_INDEX_NULL);
+        w, { w->x + viewportWidget->left + 1, w->y + viewportWidget->top + 1 },
+        (viewportWidget->right - viewportWidget->left) - 1, (viewportWidget->bottom - viewportWidget->top) - 1, 0,
+        { signViewPos, view_z }, 0, SPRITE_INDEX_NULL);
 
     w->viewport->flags = gConfigGeneral.always_show_gridlines ? VIEWPORT_FLAG_GRIDLINES : 0;
     w->flags |= WF_NO_SCROLLING;
diff --git a/src/openrct2-ui/windows/Staff.cpp b/src/openrct2-ui/windows/Staff.cpp
index 2464179487..3fedc0e05e 100644
--- a/src/openrct2-ui/windows/Staff.cpp
+++ b/src/openrct2-ui/windows/Staff.cpp
@@ -1380,12 +1380,12 @@ void window_staff_viewport_init(rct_window* w)
         {
             rct_widget* view_widget = &w->widgets[WIDX_VIEWPORT];
 
-            int32_t x = view_widget->left + 1 + w->x;
-            int32_t y = view_widget->top + 1 + w->y;
+            auto screenPos = ScreenCoordsXY{ view_widget->left + 1 + w->x, view_widget->top + 1 + w->y };
             int32_t width = view_widget->right - view_widget->left - 1;
             int32_t height = view_widget->bottom - view_widget->top - 1;
 
-            viewport_create(w, x, y, width, height, 0, 0, 0, 0, focus.type & VIEWPORT_FOCUS_TYPE_MASK, focus.sprite_id);
+            viewport_create(
+                w, screenPos, width, height, 0, { 0, 0, 0 }, focus.type & VIEWPORT_FOCUS_TYPE_MASK, focus.sprite_id);
             w->flags |= WF_NO_SCROLLING;
             w->Invalidate();
         }
diff --git a/src/openrct2-ui/windows/TitleCommandEditor.cpp b/src/openrct2-ui/windows/TitleCommandEditor.cpp
index 244dc086bc..faf7fc14b0 100644
--- a/src/openrct2-ui/windows/TitleCommandEditor.cpp
+++ b/src/openrct2-ui/windows/TitleCommandEditor.cpp
@@ -249,8 +249,8 @@ void window_title_command_editor_open(TitleSequence* sequence, int32_t index, bo
 
     rct_widget* const viewportWidget = &window_title_command_editor_widgets[WIDX_VIEWPORT];
     viewport_create(
-        window, window->x + viewportWidget->left + 1, window->y + viewportWidget->top + 1,
-        viewportWidget->right - viewportWidget->left - 1, viewportWidget->bottom - viewportWidget->top - 1, 0, 0, 0, 0, 0,
+        window, { window->x + viewportWidget->left + 1, window->y + viewportWidget->top + 1 },
+        viewportWidget->right - viewportWidget->left - 1, viewportWidget->bottom - viewportWidget->top - 1, 0, { 0, 0, 0 }, 0,
         SPRITE_INDEX_NULL);
 
     _window_title_command_editor_index = index;
diff --git a/src/openrct2-ui/windows/Viewport.cpp b/src/openrct2-ui/windows/Viewport.cpp
index 3eac76e2dc..f8327f882d 100644
--- a/src/openrct2-ui/windows/Viewport.cpp
+++ b/src/openrct2-ui/windows/Viewport.cpp
@@ -94,7 +94,7 @@ rct_window* window_viewport_open()
     w->number = _viewportNumber++;
 
     // Create viewport
-    viewport_create(w, w->x, w->y, w->width, w->height, 0, 128 * 32, 128 * 32, 0, 1, SPRITE_INDEX_NULL);
+    viewport_create(w, { w->x, w->y }, w->width, w->height, 0, TileCoordsXYZ(128, 128, 0).ToCoordsXYZ(), 1, SPRITE_INDEX_NULL);
     rct_window* mainWindow = window_get_main();
     if (mainWindow != nullptr)
     {
diff --git a/src/openrct2/interface/Viewport.cpp b/src/openrct2/interface/Viewport.cpp
index 771ed8c498..d3feb3f968 100644
--- a/src/openrct2/interface/Viewport.cpp
+++ b/src/openrct2/interface/Viewport.cpp
@@ -136,8 +136,8 @@ std::optional<ScreenCoordsXY> centre_2d_coordinates(const CoordsXYZ& loc, rct_vi
  *  w:      esi
  */
 void viewport_create(
-    rct_window* w, int32_t x, int32_t y, int32_t width, int32_t height, int32_t zoom, int32_t centre_x, int32_t centre_y,
-    int32_t centre_z, char flags, uint16_t sprite)
+    rct_window* w, const ScreenCoordsXY& screenCoords, int32_t width, int32_t height, int32_t zoom, CoordsXYZ centrePos,
+    char flags, uint16_t sprite)
 {
     rct_viewport* viewport = nullptr;
     for (int32_t i = 0; i < MAX_VIEWPORT_COUNT; i++)
@@ -154,8 +154,8 @@ void viewport_create(
         return;
     }
 
-    viewport->x = x;
-    viewport->y = y;
+    viewport->x = screenCoords.x;
+    viewport->y = screenCoords.y;
     viewport->width = width;
     viewport->height = height;
 
@@ -177,16 +177,14 @@ void viewport_create(
     {
         w->viewport_target_sprite = sprite;
         rct_sprite* centre_sprite = get_sprite(sprite);
-        centre_x = centre_sprite->generic.x;
-        centre_y = centre_sprite->generic.y;
-        centre_z = centre_sprite->generic.z;
+        centrePos = { centre_sprite->generic.x, centre_sprite->generic.y, centre_sprite->generic.z };
     }
     else
     {
         w->viewport_target_sprite = SPRITE_INDEX_NULL;
     }
 
-    auto centreLoc = centre_2d_coordinates({ centre_x, centre_y, centre_z }, viewport);
+    auto centreLoc = centre_2d_coordinates(centrePos, viewport);
     if (!centreLoc)
     {
         log_error("Invalid location for viewport.");
diff --git a/src/openrct2/interface/Viewport.h b/src/openrct2/interface/Viewport.h
index b9d8e2eeef..4e5e84998f 100644
--- a/src/openrct2/interface/Viewport.h
+++ b/src/openrct2/interface/Viewport.h
@@ -131,8 +131,8 @@ extern uint8_t gCurrentRotation;
 void viewport_init_all();
 std::optional<ScreenCoordsXY> centre_2d_coordinates(const CoordsXYZ& loc, rct_viewport* viewport);
 void viewport_create(
-    rct_window* w, int32_t x, int32_t y, int32_t width, int32_t height, int32_t zoom, int32_t centre_x, int32_t centre_y,
-    int32_t centre_z, char flags, uint16_t sprite);
+    rct_window* w, const ScreenCoordsXY& screenCoords, int32_t width, int32_t height, int32_t zoom, CoordsXYZ centrePos,
+    char flags, uint16_t sprite);
 void viewport_update_position(rct_window* window);
 void viewport_update_sprite_follow(rct_window* window);
 void viewport_update_smart_sprite_follow(rct_window* window);