--- a/pallets/common/src/erc.rs
+++ b/pallets/common/src/erc.rs
@@ -706,9 +706,6 @@
 		/// Value "ERC721Metadata".
 		pub const ERC721_METADATA: &[u8] = b"ERC721Metadata";
 
-		/// Value "1" ERC721 metadata supported.
-		pub const ERC721_METADATA_SUPPORTED: &[u8] = b"1";
-
 		/// Value for [`ERC721_METADATA`].
 		pub fn erc721() -> up_data_structs::PropertyValue {
 			property_value_from_bytes(ERC721_METADATA).expect(EXPECT_CONVERT_ERROR)
@@ -717,11 +714,6 @@
 		/// Value for [`SCHEMA_VERSION`].
 		pub fn schema_version() -> up_data_structs::PropertyValue {
 			property_value_from_bytes(SCHEMA_VERSION).expect(EXPECT_CONVERT_ERROR)
-		}
-
-		/// Value for [`ERC721_METADATA_SUPPORTED`].
-		pub fn erc721_metadata_supported() -> up_data_structs::PropertyValue {
-			property_value_from_bytes(ERC721_METADATA_SUPPORTED).expect(EXPECT_CONVERT_ERROR)
 		}
 	}
 
--- a/pallets/common/src/lib.rs
+++ b/pallets/common/src/lib.rs
@@ -71,6 +71,7 @@
 	Collection,
 	RpcCollection,
 	CollectionFlags,
+	RpcCollectionFlags,
 	CollectionId,
 	CreateItemData,
 	MAX_TOKEN_PREFIX_LENGTH,
@@ -824,7 +825,11 @@
 			token_property_permissions,
 			properties,
 			read_only: flags.external,
-			foreign: flags.foreign,
+
+			flags: RpcCollectionFlags {
+				foreign: flags.foreign,
+				erc721metadata: flags.erc721metadata,
+			},
 		})
 	}
 }
--- a/pallets/nonfungible/src/erc.rs
+++ b/pallets/nonfungible/src/erc.rs
@@ -708,22 +708,6 @@
 	}
 }
 
-impl<T: Config> NonfungibleHandle<T> {
-	pub fn supports_metadata(&self) -> bool {
-		let has_metadata_support_enabled = if let Some(erc721_metadata) =
-			pallet_common::Pallet::<T>::get_collection_property(self.id, &key::erc721_metadata())
-		{
-			*erc721_metadata.into_inner() == *value::ERC721_METADATA_SUPPORTED
-		} else {
-			false
-		};
-
-		let has_url_property_permissions = get_token_permission::<T>(self.id, &key::url()).is_ok();
-
-		has_metadata_support_enabled && has_url_property_permissions
-	}
-}
-
 #[solidity_interface(
 	name = UniqueNFT,
 	is(
@@ -732,9 +716,9 @@
 		ERC721UniqueExtensions,
 		ERC721Mintable,
 		ERC721Burnable,
+		ERC721Metadata(if(this.flags.erc721metadata)),
 		Collection(via(common_mut returns CollectionHandle<T>)),
 		TokenProperties,
-		ERC721Metadata(if(this.supports_metadata())),
 	)
 )]
 impl<T: Config> NonfungibleHandle<T> where T::AccountId: From<[u8; 32]> + AsRef<[u8; 32]> {}
--- a/pallets/refungible/src/erc.rs
+++ b/pallets/refungible/src/erc.rs
@@ -764,22 +764,6 @@
 	}
 }
 
-impl<T: Config> RefungibleHandle<T> {
-	pub fn supports_metadata(&self) -> bool {
-		let has_metadata_support_enabled = if let Some(erc721_metadata) =
-			pallet_common::Pallet::<T>::get_collection_property(self.id, &key::erc721_metadata())
-		{
-			*erc721_metadata.into_inner() == *value::ERC721_METADATA_SUPPORTED
-		} else {
-			false
-		};
-
-		let has_url_property_permissions = get_token_permission::<T>(self.id, &key::url()).is_ok();
-
-		has_metadata_support_enabled && has_url_property_permissions
-	}
-}
-
 #[solidity_interface(
 	name = UniqueRefungible,
 	is(
@@ -788,9 +772,9 @@
 		ERC721UniqueExtensions,
 		ERC721Mintable,
 		ERC721Burnable,
+		ERC721Metadata(if(this.flags.erc721metadata)),
 		Collection(via(common_mut returns CollectionHandle<T>)),
 		TokenProperties,
-		ERC721Metadata(if(this.supports_metadata())),
 	)
 )]
 impl<T: Config> RefungibleHandle<T> where T::AccountId: From<[u8; 32]> + AsRef<[u8; 32]> {}
--- a/pallets/unique/src/eth/mod.rs
+++ b/pallets/unique/src/eth/mod.rs
@@ -89,6 +89,26 @@
 	Ok((caller, name, description, token_prefix, base_uri_value))
 }
 
+fn default_url_pkp() -> up_data_structs::PropertyKeyPermission {
+	up_data_structs::PropertyKeyPermission {
+		key: key::url(),
+		permission: up_data_structs::PropertyPermission {
+			mutable: true,
+			collection_admin: true,
+			token_owner: false,
+		},
+	}
+}
+fn default_suffix_pkp() -> up_data_structs::PropertyKeyPermission {
+	up_data_structs::PropertyKeyPermission {
+		key: key::suffix(),
+		permission: up_data_structs::PropertyPermission {
+			mutable: true,
+			collection_admin: true,
+			token_owner: false,
+		},
+	}
+}
 fn make_data<T: Config>(
 	name: CollectionName,
 	mode: CollectionMode,
@@ -98,26 +118,9 @@
 	add_properties: bool,
 ) -> Result<CreateCollectionData<T::AccountId>> {
 	let token_property_permissions = if add_properties {
-		vec![
-			up_data_structs::PropertyKeyPermission {
-				key: key::url(),
-				permission: up_data_structs::PropertyPermission {
-					mutable: true,
-					collection_admin: true,
-					token_owner: false,
-				},
-			},
-			up_data_structs::PropertyKeyPermission {
-				key: key::suffix(),
-				permission: up_data_structs::PropertyPermission {
-					mutable: true,
-					collection_admin: true,
-					token_owner: false,
-				},
-			},
-		]
-		.try_into()
-		.map_err(|e| Error::Revert(format!("{:?}", e)))?
+		vec![default_url_pkp(), default_suffix_pkp()]
+			.try_into()
+			.map_err(|e| Error::Revert(format!("{:?}", e)))?
 	} else {
 		up_data_structs::CollectionPropertiesPermissionsVec::default()
 	};
@@ -130,10 +133,6 @@
 			up_data_structs::Property {
 				key: key::schema_version(),
 				value: property_value::schema_version(),
-			},
-			up_data_structs::Property {
-				key: key::erc721_metadata(),
-				value: property_value::erc721_metadata_supported(),
 			},
 		];
 		if !base_uri_value.is_empty() {
--- a/primitives/data-structs/src/lib.rs
+++ b/primitives/data-structs/src/lib.rs
@@ -365,11 +365,14 @@
 	/// Tokens in foreign collections can be transferred, but not burnt
 	#[bondrewd(bits = "0..1")]
 	pub foreign: bool,
+	/// Supports ERC721Metadata
+	#[bondrewd(bits = "1..2")]
+	pub erc721metadata: bool,
 	/// External collections can't be managed using `unique` api
 	#[bondrewd(bits = "7..8")]
 	pub external: bool,
 
-	#[bondrewd(reserve, bits = "1..7")]
+	#[bondrewd(reserve, bits = "2..7")]
 	pub reserved: u8,
 }
 bondrewd_codec!(CollectionFlags);
@@ -434,6 +437,15 @@
 	pub meta_update_permission: MetaUpdatePermission,
 }
 
+#[derive(Encode, Decode, Clone, PartialEq, TypeInfo)]
+#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
+pub struct RpcCollectionFlags {
+	/// Is collection is foreign.
+	pub foreign: bool,
+	/// Collection supports ERC721Metadata.
+	pub erc721metadata: bool,
+}
+
 /// Collection parameters, used in RPC calls (see [`Collection`] for the storage version).
 #[derive(Encode, Decode, Clone, PartialEq, TypeInfo)]
 #[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
@@ -471,8 +483,8 @@
 	/// Is collection read only.
 	pub read_only: bool,
 
-	/// Is collection is foreign.
-	pub foreign: bool,
+	/// Extra collection flags
+	pub flags: RpcCollectionFlags,
 }
 
 /// Data used for create collection.