diff --git a/libs/libopenfpgacapnproto/CMakeLists.txt b/libs/libopenfpgacapnproto/CMakeLists.txt
index 401267409..e6041acb3 100644
--- a/libs/libopenfpgacapnproto/CMakeLists.txt
+++ b/libs/libopenfpgacapnproto/CMakeLists.txt
@@ -35,10 +35,10 @@ find_program(WGET wget REQUIRED)
 find_package(ZLIB REQUIRED)
 
 # Add Java schema
-set(JAVA_SCHEMA ${CMAKE_CURRENT_BINARY_DIR}/../../vtr-verilog-to-routing/libs/libvtrcapnproto/schema/capnp/java.capnp)
+set(JAVA_SCHEMA ${CMAKE_CURRENT_BINARY_DIR}/schema/capnp/java.capnp)
 add_custom_command(
     OUTPUT ${JAVA_SCHEMA}
-    COMMAND ${CMAKE_COMMAND} -E make_directory ${CMAKE_CURRENT_BINARY_DIR}/../../vtr-verilog-to-routing/libs/libvtrcapnproto/schema/capnp/
+    COMMAND ${CMAKE_COMMAND} -E make_directory ${CMAKE_CURRENT_BINARY_DIR}/schema/capnp/
     COMMAND ${WGET}
         https://raw.githubusercontent.com/capnproto/capnproto-java/master/compiler/src/main/schema/capnp/java.capnp
         -O ${JAVA_SCHEMA}
@@ -46,7 +46,7 @@ add_custom_command(
 
 
 set(CAPNPC_IMPORT_DIRS)
-list(APPEND CAPNPC_IMPORT_DIRS ${CMAKE_CURRENT_BINARY_DIR}/../../vtr-verilog-to-routing/libs/libvtrcapnproto/schema)
+list(APPEND CAPNPC_IMPORT_DIRS ${CMAKE_CURRENT_BINARY_DIR}/schema)
 
 set(IC_PROTOS)
 set(IC_SRCS)
@@ -88,3 +88,21 @@ target_link_libraries(libopenfpgacapnproto
     libopenfpgautil
     CapnProto::capnp
 )
+
+
+add_custom_target(
+    generate_unique_block_capnp
+    COMMAND ${CMAKE_COMMAND} -E remove_directory unique_blocks_capnproto_generate
+    COMMAND ${CMAKE_COMMAND} -E make_directory unique_blocks_capnproto_generate
+    COMMAND ${CMAKE_COMMAND} -E chdir unique_blocks_capnproto_generate git clone https://github.com/duck2/uxsdcxx
+    COMMAND python3 -mpip install --user -r unique_blocks_capnproto_generate/uxsdcxx/requirements.txt
+    COMMAND ${CMAKE_COMMAND} -E chdir unique_blocks_capnproto_generate python3 uxsdcxx/uxsdcxx.py ${CMAKE_CURRENT_SOURCE_DIR}/gen/unique_blocks.xsd
+    COMMAND ${CMAKE_COMMAND} -E copy
+        unique_blocks_capnproto_generate/unique_blocks_uxsdcxx.h
+        unique_blocks_capnproto_generate/unique_blocks_uxsdcxx_capnp.h
+        unique_blocks_capnproto_generate/unique_blocks_uxsdcxx_interface.h
+        ${CMAKE_CURRENT_SOURCE_DIR}/gen
+    COMMAND ${CMAKE_COMMAND} -E copy unique_blocks_capnproto_generate/unique_blocks_uxsdcxx.capnp ${CMAKE_CURRENT_SOURCE_DIR}/gen
+    DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/gen/unique_blocks.xsd
+    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+)
diff --git a/libs/libopenfpgacapnproto/gen/unique_blocks.xsd b/libs/libopenfpgacapnproto/gen/unique_blocks.xsd
new file mode 100644
index 000000000..ebf4310be
--- /dev/null
+++ b/libs/libopenfpgacapnproto/gen/unique_blocks.xsd
@@ -0,0 +1,81 @@
+<?xml version="1.0"?>
+<!--
+  Copyright 2018 Jeppe Johansen
+
+  XML 1.0 Schema for unique blocks data structure developed based on documentation here:
+  
+-->
+
+<!--
+  The root of the XSD file is the xs:schema.  With the xs:schema are 3 types
+  relevant to the code generated:
+
+- xs:complexType : This defines a child tag within the schema.  Most of the
+                   schema is made of these.
+- xs:simpleType : These define string enumerations (e.g. the "switch" tag
+                  "type" enumeration).
+- xs:element : There is one xs:element that is the direct child of the root
+               xs:schema, and this the definition of the root tag.
+
+  In addition to being used for code generation, this schema can be used to
+  validate whether an unique block XML conforms to this schema.
+
+  Additional documentation is available at
+  https://github.com/duck2/uxsdcxx/blob/master/README.md
+
+-->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
+  <!-- Enumeration for BlockType -->
+  <xs:simpleType name="BlockType">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="cbx"/>
+      <xs:enumeration value="cby"/>
+      <xs:enumeration value="sb"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <!-- BlockInfo Structure -->
+  <xs:complexType name="BlockInfo">
+    <xs:sequence>
+      <xs:element name="type" type="BlockType"/>
+      <xs:element name="x" type="xs:unsignedInt"/>
+      <xs:element name="y" type="xs:unsignedInt"/>
+    </xs:sequence>
+  </xs:complexType>
+
+  <!-- InstanceInfo Structure -->
+  <xs:complexType name="InstanceInfo">
+    <xs:sequence>
+      <xs:element name="x" type="xs:unsignedInt"/>
+      <xs:element name="y" type="xs:unsignedInt"/>
+    </xs:sequence>
+  </xs:complexType>
+
+  <!-- UniqueBlockPacked Structure -->
+  <xs:complexType name="UniqueBlockPacked">
+    <xs:sequence>
+      <xs:element name="blockInfo" type="BlockInfo"/>
+      <xs:element name="instanceList">
+        <xs:complexType>
+          <xs:sequence>
+            <xs:element name="instance" type="InstanceInfo" maxOccurs="unbounded"/>
+          </xs:sequence>
+        </xs:complexType> <!-- A list of IncetanceInfo -->
+      </xs:element>
+    </xs:sequence>
+  </xs:complexType>
+
+  <!-- UniqueBlockCompactInfo Structure -->
+  <xs:complexType name="UniqueBlockCompactInfo">
+    <xs:sequence>
+      <xs:element name="atomInfo">
+        <xs:complexType>
+          <xs:sequence>
+            <xs:element name="uniqueBlockPacked" type="UniqueBlockPacked" maxOccurs="unbounded"/>
+          </xs:sequence>
+        </xs:complexType> <!-- A list of uniqueBlockPacked -->
+      </xs:element>
+    </xs:sequence>
+  </xs:complexType>
+
+</xs:schema>
diff --git a/libs/libopenfpgacapnproto/gen/unique_blocks_uxsdcxx.capnp b/libs/libopenfpgacapnproto/gen/unique_blocks_uxsdcxx_pre.capnp
similarity index 100%
rename from libs/libopenfpgacapnproto/gen/unique_blocks_uxsdcxx.capnp
rename to libs/libopenfpgacapnproto/gen/unique_blocks_uxsdcxx_pre.capnp