diff --git a/distribution/changelog.txt b/distribution/changelog.txt
index e9b438d604..0f0bdcd81e 100644
--- a/distribution/changelog.txt
+++ b/distribution/changelog.txt
@@ -3,6 +3,7 @@
 - Feature: [#13057] Make GameAction flags accessible by plugins.
 - Feature: [#13376] Open custom window at specified tab.
 - Feature: [#13398] Add pause button to the Track Designer.
+- Feature: [#13495] [Plugin] Add properties for park value, guests and company value.
 - Change: [#13346] Change FootpathScenery to FootpathAddition in all occurrences.
 - Fix: [#12895] Mechanics are called to repair rides that have already been fixed.
 - Fix: [#13257] Rides that are exactly the minimum objective length are not counted.
diff --git a/distribution/openrct2.d.ts b/distribution/openrct2.d.ts
index 179c52857b..48a5b76bd5 100644
--- a/distribution/openrct2.d.ts
+++ b/distribution/openrct2.d.ts
@@ -1454,6 +1454,23 @@ declare global {
          */
         entranceFee: number;
 
+        /**
+         * The number of guests within the park, not including any outside the park but still
+         * on the map.
+         */
+        readonly guests: number;
+
+        /**
+         * The park value, will be updated every 512 ticks.
+         */
+        value: number;
+
+        /**
+         * The company value, will be updated every 512 ticks.
+         * Calculation is: `park.value + park.cash - park.bankLoan`
+         */
+        companyValue: number;
+
         name: string;
         messages: ParkMessage[];
 
diff --git a/src/openrct2/scripting/ScPark.hpp b/src/openrct2/scripting/ScPark.hpp
index d4ec7dcaec..dfe05052b1 100644
--- a/src/openrct2/scripting/ScPark.hpp
+++ b/src/openrct2/scripting/ScPark.hpp
@@ -17,6 +17,7 @@
 #    include "../core/String.hpp"
 #    include "../management/Finance.h"
 #    include "../management/NewsItem.h"
+#    include "../peep/Peep.h"
 #    include "../windows/Intent.h"
 #    include "../world/Park.h"
 #    include "Duktape.hpp"
@@ -255,9 +256,13 @@ namespace OpenRCT2::Scripting
         void cash_set(money32 value)
         {
             ThrowIfGameStateNotMutable();
-            gCash = value;
-            auto intent = Intent(INTENT_ACTION_UPDATE_CASH);
-            context_broadcast_intent(&intent);
+
+            if (gCash != value)
+            {
+                gCash = value;
+                auto intent = Intent(INTENT_ACTION_UPDATE_CASH);
+                context_broadcast_intent(&intent);
+            }
         }
 
         int32_t rating_get() const
@@ -267,9 +272,14 @@ namespace OpenRCT2::Scripting
         void rating_set(int32_t value)
         {
             ThrowIfGameStateNotMutable();
-            gParkRating = std::min(std::max(0, value), 999);
-            auto intent = Intent(INTENT_ACTION_UPDATE_PARK_RATING);
-            context_broadcast_intent(&intent);
+
+            auto valueClamped = std::min(std::max(0, value), 999);
+            if (gParkRating != valueClamped)
+            {
+                gParkRating = std::min(std::max(0, value), 999);
+                auto intent = Intent(INTENT_ACTION_UPDATE_PARK_RATING);
+                context_broadcast_intent(&intent);
+            }
         }
 
         money32 bankLoan_get() const
@@ -279,9 +289,13 @@ namespace OpenRCT2::Scripting
         void bankLoan_set(money32 value)
         {
             ThrowIfGameStateNotMutable();
-            gBankLoan = value;
-            auto intent = Intent(INTENT_ACTION_UPDATE_CASH);
-            context_broadcast_intent(&intent);
+
+            if (gBankLoan != value)
+            {
+                gBankLoan = value;
+                auto intent = Intent(INTENT_ACTION_UPDATE_CASH);
+                context_broadcast_intent(&intent);
+            }
         }
 
         money32 maxBankLoan_get() const
@@ -291,9 +305,13 @@ namespace OpenRCT2::Scripting
         void maxBankLoan_set(money32 value)
         {
             ThrowIfGameStateNotMutable();
-            gMaxBankLoan = value;
-            auto intent = Intent(INTENT_ACTION_UPDATE_CASH);
-            context_broadcast_intent(&intent);
+
+            if (gMaxBankLoan != value)
+            {
+                gMaxBankLoan = value;
+                auto intent = Intent(INTENT_ACTION_UPDATE_CASH);
+                context_broadcast_intent(&intent);
+            }
         }
 
         money16 entranceFee_get() const
@@ -303,7 +321,49 @@ namespace OpenRCT2::Scripting
         void entranceFee_set(money16 value)
         {
             ThrowIfGameStateNotMutable();
-            gParkEntranceFee = value;
+
+            if (gParkEntranceFee != value)
+            {
+                gParkEntranceFee = value;
+                window_invalidate_by_class(WC_PARK_INFORMATION);
+            }
+        }
+
+        uint32_t guests_get() const
+        {
+            return gNumGuestsInPark;
+        }
+
+        money32 value_get() const
+        {
+            return gParkValue;
+        }
+        void value_set(money32 value)
+        {
+            ThrowIfGameStateNotMutable();
+
+            if (gParkValue != value)
+            {
+                gParkValue = value;
+                auto intent = Intent(INTENT_ACTION_UPDATE_CASH);
+                context_broadcast_intent(&intent);
+            }
+        }
+
+        money32 companyValue_get() const
+        {
+            return gCompanyValue;
+        }
+        void companyValue_set(money32 value)
+        {
+            ThrowIfGameStateNotMutable();
+
+            if (gCompanyValue != value)
+            {
+                gCompanyValue = value;
+                auto intent = Intent(INTENT_ACTION_UPDATE_CASH);
+                context_broadcast_intent(&intent);
+            }
         }
 
         std::string name_get() const
@@ -313,7 +373,13 @@ namespace OpenRCT2::Scripting
         void name_set(std::string value)
         {
             ThrowIfGameStateNotMutable();
-            GetContext()->GetGameState()->GetPark().Name = value;
+
+            auto& park = GetContext()->GetGameState()->GetPark();
+            if (park.Name != value)
+            {
+                park.Name = value;
+                gfx_invalidate_screen();
+            }
         }
 
         bool getFlag(const std::string& key) const
@@ -426,6 +492,9 @@ namespace OpenRCT2::Scripting
             dukglue_register_property(ctx, &ScPark::bankLoan_get, &ScPark::bankLoan_set, "bankLoan");
             dukglue_register_property(ctx, &ScPark::maxBankLoan_get, &ScPark::maxBankLoan_set, "maxBankLoan");
             dukglue_register_property(ctx, &ScPark::entranceFee_get, &ScPark::entranceFee_set, "entranceFee");
+            dukglue_register_property(ctx, &ScPark::guests_get, nullptr, "guests");
+            dukglue_register_property(ctx, &ScPark::value_get, &ScPark::value_set, "value");
+            dukglue_register_property(ctx, &ScPark::companyValue_get, &ScPark::companyValue_set, "companyValue");
             dukglue_register_property(ctx, &ScPark::name_get, &ScPark::name_set, "name");
             dukglue_register_property(ctx, &ScPark::messages_get, &ScPark::messages_set, "messages");
             dukglue_register_method(ctx, &ScPark::getFlag, "getFlag");