diff --git a/ICore.h b/ICore.h
index 93c2d64..7a3ccd8 100644
--- a/ICore.h
+++ b/ICore.h
@@ -28,6 +28,7 @@
 #include "script-objects/IWebView.h"
 #include "script-objects/IStatData.h"
 #include "script-objects/IHandlingData.h"
+#include "script-objects/IInterior.h"
 #include "script-objects/IAudioCategory.h"
 #include "script-objects/INative.h"
 #include "script-objects/IMapData.h"
@@ -180,6 +181,8 @@ namespace alt
 		virtual std::vector<std::shared_ptr<alt::IWeaponData>> GetAllWeaponData() const = 0;
 		virtual std::shared_ptr<alt::IAudioCategory> GetAudioCategory(const std::string& name) const = 0;
 
+		virtual std::shared_ptr<alt::IInterior> GetInterior(uint32_t interiorId) const = 0;
+
 		virtual void TriggerServerEvent(const std::string& ev, MValueArgs args) = 0;
 		virtual void TriggerServerEventUnreliable(const std::string& ev, MValueArgs args) = 0;
         /**
diff --git a/script-objects/IInterior.h b/script-objects/IInterior.h
new file mode 100644
index 0000000..d01f81c
--- /dev/null
+++ b/script-objects/IInterior.h
@@ -0,0 +1,33 @@
+#pragma once
+#include <cstdint>
+//#ifdef ALT_CLIENT_API
+
+namespace alt
+{
+	class IInteriorRoom;
+	class IInteriorPortal;
+
+	class IInterior
+	{
+	protected:
+		virtual ~IInterior() = default;
+
+	public:
+		struct ExtentInfo
+		{
+			alt::Position min;
+			alt::Position max;
+		};
+
+		virtual std::shared_ptr<alt::IInteriorRoom> GetRoomByHash(uint32_t hash) const = 0;
+		virtual std::shared_ptr<alt::IInteriorRoom> GetRoomByIndex(uint32_t roomIndex) const = 0;		
+		virtual std::shared_ptr<alt::IInteriorPortal> GetPortalByIndex(uint32_t portalIndex) const = 0;
+
+		virtual uint16_t GetRoomCount() const = 0;
+		virtual uint16_t GetPortalCount() const = 0;
+		virtual alt::Position GetPosition() const = 0;
+		virtual alt::Rotation GetRotation() const = 0;
+		virtual alt::IInterior::ExtentInfo GetEntitiesExtents() const = 0;
+	};
+}
+//##endif
\ No newline at end of file
diff --git a/script-objects/IInteriorPortal.h b/script-objects/IInteriorPortal.h
new file mode 100644
index 0000000..4bae208
--- /dev/null
+++ b/script-objects/IInteriorPortal.h
@@ -0,0 +1,36 @@
+#pragma once
+#include <cstdint>
+
+#include "cpp-sdk/deps/alt-math/alt-math.h"
+
+namespace alt
+{
+	class IInteriorPortal
+	{
+	protected:
+		virtual ~IInteriorPortal() = default;
+		
+	public:
+		virtual uint32_t GetIndex() const = 0;
+		virtual uint16_t GetCornerCount() const = 0;
+		virtual Position GetCornerPosition(uint32_t cornerIndex) const = 0;
+		virtual int32_t GetRoomFrom() const = 0;
+		virtual int32_t GetRoomTo() const = 0;
+		virtual int32_t GetFlag() const = 0;
+
+		virtual uint16_t GetEntityCount() const = 0;
+		virtual uint32_t GetEntityArcheType(uint32_t entityIndex) const = 0;
+		virtual int32_t GetEntityFlag(uint32_t entityIndex) const = 0;
+		virtual alt::Position GetEntityPosition(uint32_t entityIndex) const = 0;
+		virtual alt::Rotation GetEntityRotation(uint32_t entityIndex) const = 0;
+
+		
+		virtual void SetCornerPosition(uint32_t cornerIndex,
+											 const alt::Position& position) = 0;
+		virtual void SetRoomFrom(uint32_t roomFrom) = 0;
+		virtual void SetRoomTo(uint32_t roomTo) = 0;
+		virtual void SetFlag(uint32_t flag) = 0;
+		virtual void SetEntityFlag(uint32_t entityIndex, uint32_t flag) = 0;
+
+	};
+}
\ No newline at end of file
diff --git a/script-objects/IInteriorRoom.h b/script-objects/IInteriorRoom.h
new file mode 100644
index 0000000..d0f0e48
--- /dev/null
+++ b/script-objects/IInteriorRoom.h
@@ -0,0 +1,24 @@
+#pragma once
+#include <string>
+
+#include "IInterior.h"
+
+namespace alt
+{	
+	class IInteriorRoom
+	{
+	protected:
+		virtual ~IInteriorRoom() = default;
+	public:
+		virtual uint32_t GetIndex() const = 0;
+		virtual std::string GetName() const = 0;
+		virtual uint32_t GetNameHash() const = 0;
+		virtual int32_t GetFlag() const = 0;
+		virtual uint32_t GetTimecycle() const = 0;
+		virtual alt::IInterior::ExtentInfo GetExtents() const = 0;
+
+		virtual void SetFlag(uint32_t flag) = 0;
+		virtual void SetTimecycle(uint32_t timecycleHash) = 0;
+		virtual void SetExtents(alt::IInterior::ExtentInfo extentInfo) = 0;
+	};
+}
\ No newline at end of file