diff --git a/src/openrct2/actions/BannerPlaceAction.hpp b/src/openrct2/actions/BannerPlaceAction.hpp
index 8190d75271..5778d4b6b5 100644
--- a/src/openrct2/actions/BannerPlaceAction.hpp
+++ b/src/openrct2/actions/BannerPlaceAction.hpp
@@ -128,6 +128,13 @@ public:
             return MakeResult(GA_ERROR::INVALID_PARAMETERS, STR_CANT_POSITION_THIS_HERE);
         }
 
+        rct_scenery_entry* bannerEntry = get_banner_entry(_bannerType);
+        if (bannerEntry == nullptr)
+        {
+            log_error("Invalid banner object type. bannerType = ", _bannerType);
+            return MakeResult(GA_ERROR::INVALID_PARAMETERS, STR_CANT_POSITION_THIS_HERE);
+        }
+
         auto banner = GetBanner(_bannerIndex);
         if (!banner->IsNull())
         {
@@ -141,7 +148,7 @@ public:
         banner->flags = 0;
         banner->text = {};
         banner->text_colour = 2;
-        banner->type = _bannerType;
+        banner->type = _bannerType; // Banner must be deleted after this point in an early return
         banner->colour = _primaryColour;
         banner->position = TileCoordsXY(_loc);
         newTileElement->SetType(TILE_ELEMENT_TYPE_BANNER);
@@ -157,12 +164,6 @@ public:
         map_invalidate_tile_full(_loc);
         map_animation_create(MAP_ANIMATION_TYPE_BANNER, CoordsXYZ{ _loc, bannerElement->GetBaseZ() });
 
-        rct_scenery_entry* bannerEntry = get_banner_entry(_bannerType);
-        if (bannerEntry == nullptr)
-        {
-            log_error("Invalid banner object type. bannerType = ", _bannerType);
-            return MakeResult(GA_ERROR::INVALID_PARAMETERS, STR_CANT_POSITION_THIS_HERE);
-        }
         res->Cost = bannerEntry->banner.price;
         return res;
     }
diff --git a/src/openrct2/actions/LargeSceneryPlaceAction.hpp b/src/openrct2/actions/LargeSceneryPlaceAction.hpp
index ca88b302ab..38eb61090a 100644
--- a/src/openrct2/actions/LargeSceneryPlaceAction.hpp
+++ b/src/openrct2/actions/LargeSceneryPlaceAction.hpp
@@ -244,36 +244,6 @@ public:
 
         res->Position.z = maxHeight;
 
-        if (sceneryEntry->large_scenery.scrolling_mode != SCROLLING_MODE_NONE)
-        {
-            if (_bannerId == BANNER_INDEX_NULL)
-            {
-                log_error("No free banners available");
-                return MakeResult(GA_ERROR::NO_FREE_ELEMENTS, STR_TOO_MANY_BANNERS_IN_GAME);
-            }
-
-            auto banner = GetBanner(_bannerId);
-            if (!banner->IsNull())
-            {
-                log_error("No free banners available");
-                return std::make_unique<LargeSceneryPlaceActionResult>(GA_ERROR::NO_FREE_ELEMENTS);
-            }
-
-            banner->text = {};
-            banner->colour = 2;
-            banner->text_colour = 2;
-            banner->flags = BANNER_FLAG_IS_LARGE_SCENERY;
-            banner->type = 0;
-            banner->position = TileCoordsXY(_loc);
-
-            ride_id_t rideIndex = banner_get_closest_ride_index({ _loc, maxHeight });
-            if (rideIndex != RIDE_ID_NULL)
-            {
-                banner->ride_index = rideIndex;
-                banner->flags |= BANNER_FLAG_LINKED_TO_RIDE;
-            }
-        }
-
         if (!map_check_free_elements_and_reorganise(totalNumTiles))
         {
             log_error("No free map elements available");
@@ -328,6 +298,37 @@ public:
             map_invalidate_tile_full(curTile);
         }
 
+        // Allocate banner after all tiles to ensure banner id doesn't need to be freed.
+        if (sceneryEntry->large_scenery.scrolling_mode != SCROLLING_MODE_NONE)
+        {
+            if (_bannerId == BANNER_INDEX_NULL)
+            {
+                log_error("No free banners available");
+                return MakeResult(GA_ERROR::NO_FREE_ELEMENTS, STR_TOO_MANY_BANNERS_IN_GAME);
+            }
+
+            auto banner = GetBanner(_bannerId);
+            if (!banner->IsNull())
+            {
+                log_error("No free banners available");
+                return std::make_unique<LargeSceneryPlaceActionResult>(GA_ERROR::NO_FREE_ELEMENTS);
+            }
+
+            banner->text = {};
+            banner->colour = 2;
+            banner->text_colour = 2;
+            banner->flags = BANNER_FLAG_IS_LARGE_SCENERY;
+            banner->type = 0;
+            banner->position = TileCoordsXY(_loc);
+
+            ride_id_t rideIndex = banner_get_closest_ride_index({ _loc, maxHeight });
+            if (rideIndex != RIDE_ID_NULL)
+            {
+                banner->ride_index = rideIndex;
+                banner->flags |= BANNER_FLAG_LINKED_TO_RIDE;
+            }
+        }
+
         // Force ride construction to recheck area
         _currentTrackSelectionFlags |= TRACK_SELECTION_FLAG_RECHECK;
 
diff --git a/src/openrct2/actions/WallPlaceAction.hpp b/src/openrct2/actions/WallPlaceAction.hpp
index b8993a0a37..b6e7c51553 100644
--- a/src/openrct2/actions/WallPlaceAction.hpp
+++ b/src/openrct2/actions/WallPlaceAction.hpp
@@ -342,36 +342,6 @@ public:
             return std::make_unique<WallPlaceActionResult>(GA_ERROR::INVALID_PARAMETERS);
         }
 
-        if (wallEntry->wall.scrolling_mode != SCROLLING_MODE_NONE)
-        {
-            if (_bannerId == BANNER_INDEX_NULL)
-            {
-                log_error("Banner Index not specified.");
-                return std::make_unique<WallPlaceActionResult>(GA_ERROR::INVALID_PARAMETERS, STR_TOO_MANY_BANNERS_IN_GAME);
-            }
-
-            auto banner = GetBanner(_bannerId);
-            if (!banner->IsNull())
-            {
-                log_error("No free banners available");
-                return std::make_unique<WallPlaceActionResult>(GA_ERROR::NO_FREE_ELEMENTS);
-            }
-
-            banner->text = {};
-            banner->colour = COLOUR_WHITE;
-            banner->text_colour = COLOUR_WHITE;
-            banner->flags = BANNER_FLAG_IS_WALL;
-            banner->type = 0;
-            banner->position = TileCoordsXY(_loc);
-
-            ride_id_t rideIndex = banner_get_closest_ride_index(targetLoc);
-            if (rideIndex != RIDE_ID_NULL)
-            {
-                banner->ride_index = rideIndex;
-                banner->flags |= BANNER_FLAG_LINKED_TO_RIDE;
-            }
-        }
-
         uint8_t clearanceHeight = targetHeight / COORDS_Z_STEP;
         if (edgeSlope & (EDGE_SLOPE_UPWARDS | EDGE_SLOPE_DOWNWARDS))
         {
@@ -393,6 +363,37 @@ public:
         {
             return MakeResult(GA_ERROR::NO_FREE_ELEMENTS, STR_TILE_ELEMENT_LIMIT_REACHED);
         }
+
+        if (wallEntry->wall.scrolling_mode != SCROLLING_MODE_NONE)
+        {
+            if (_bannerId == BANNER_INDEX_NULL)
+            {
+                log_error("Banner Index not specified.");
+                return std::make_unique<WallPlaceActionResult>(GA_ERROR::INVALID_PARAMETERS, STR_TOO_MANY_BANNERS_IN_GAME);
+            }
+
+            auto banner = GetBanner(_bannerId);
+            if (!banner->IsNull())
+            {
+                log_error("No free banners available");
+                return std::make_unique<WallPlaceActionResult>(GA_ERROR::NO_FREE_ELEMENTS);
+            }
+
+            banner->text = {};
+            banner->colour = COLOUR_WHITE;
+            banner->text_colour = COLOUR_WHITE;
+            banner->flags = BANNER_FLAG_IS_WALL;
+            banner->type = 0; // Banner must be deleted after this point in an early return
+            banner->position = TileCoordsXY(_loc);
+
+            ride_id_t rideIndex = banner_get_closest_ride_index(targetLoc);
+            if (rideIndex != RIDE_ID_NULL)
+            {
+                banner->ride_index = rideIndex;
+                banner->flags |= BANNER_FLAG_LINKED_TO_RIDE;
+            }
+        }
+
         TileElement* tileElement = tile_element_insert(targetLoc, 0b0000);
         assert(tileElement != nullptr);