diff --git a/kx-properties.lv2/manifest.ttl b/kx-properties.lv2/manifest.ttl
new file mode 100644
index 0000000..fdec9d5
--- /dev/null
+++ b/kx-properties.lv2/manifest.ttl
@@ -0,0 +1,8 @@
+@prefix lv2:  <http://lv2plug.in/ns/lv2core#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+
+<http://kxstudio.sf.net/ns/lv2ext/props>
+    a lv2:Specification ;
+    lv2:minorVersion 1 ;
+    lv2:microVersion 0 ;
+    rdfs:seeAlso <props.ttl> .
diff --git a/kx-properties.lv2/props.doap.ttl b/kx-properties.lv2/props.doap.ttl
new file mode 100644
index 0000000..6f0cb15
--- /dev/null
+++ b/kx-properties.lv2/props.doap.ttl
@@ -0,0 +1,25 @@
+@prefix dcs:  <http://ontologi.es/doap-changeset#> .
+@prefix doap: <http://usefulinc.com/ns/doap#> .
+@prefix foaf: <http://xmlns.com/foaf/0.1/> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+
+<http://kxstudio.sf.net/ns/lv2ext/props>
+    a doap:Project ;
+    rdfs:seeAlso <../kx-meta/meta.ttl> ;
+    doap:license <http://opensource.org/licenses/isc> ;
+    doap:name "Properties" ;
+    doap:homepage <http://kxstudio.sf.net/ns/lv2ext/props> ;
+    doap:created "2015-07-03" ;
+    doap:shortdesc "LV2 extension for custom KXStudio properties." ;
+    doap:developer <https://falktx.com/> ;
+    doap:maintainer <https://falktx.com/> ;
+    doap:release [
+        doap:revision "1.0" ;
+        doap:created "2015-07-03" ;
+        doap:file-release <http://kxstudio.sf.net/ns/lv2ext/kx-extensions-1.0.tar.bz2> ;
+        dcs:changeset [
+            dcs:item [
+                rdfs:label "First stable release."
+            ]
+        ]
+    ] .
diff --git a/kx-properties.lv2/props.h b/kx-properties.lv2/props.h
new file mode 100644
index 0000000..2292265
--- /dev/null
+++ b/kx-properties.lv2/props.h
@@ -0,0 +1,33 @@
+/*
+  LV2 KXStudio Properties Extension
+  Copyright 2014-2021 Filipe Coelho <falktx@falktx.com>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file lv2_kxstudio_properties.h
+   C header for the LV2 KXStudio Properties extension <http://kxstudio.sf.net/ns/lv2ext/props>.
+*/
+
+#ifndef LV2_KXSTUDIO_PROPERTIES_H
+#define LV2_KXSTUDIO_PROPERTIES_H
+
+#define LV2_KXSTUDIO_PROPERTIES_URI    "http://kxstudio.sf.net/ns/lv2ext/props"
+#define LV2_KXSTUDIO_PROPERTIES_PREFIX LV2_KXSTUDIO_PROPERTIES_URI "#"
+
+#define LV2_KXSTUDIO_PROPERTIES__NonAutomatable           LV2_KXSTUDIO_PROPERTIES_PREFIX "NonAutomatable"
+#define LV2_KXSTUDIO_PROPERTIES__TimePositionTicksPerBeat LV2_KXSTUDIO_PROPERTIES_PREFIX "TimePositionTicksPerBeat"
+#define LV2_KXSTUDIO_PROPERTIES__TransientWindowId        LV2_KXSTUDIO_PROPERTIES_PREFIX "TransientWindowId"
+
+#endif /* LV2_KXSTUDIO_PROPERTIES_H */
diff --git a/kx-properties.lv2/props.ttl b/kx-properties.lv2/props.ttl
new file mode 100644
index 0000000..e789f7f
--- /dev/null
+++ b/kx-properties.lv2/props.ttl
@@ -0,0 +1,29 @@
+@prefix lv2:   <http://lv2plug.in/ns/lv2core#> .
+@prefix owl:   <http://www.w3.org/2002/07/owl#> .
+@prefix props: <http://kxstudio.sf.net/ns/lv2ext/props#> .
+@prefix rdf:   <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix rdfs:  <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix xsd:   <http://www.w3.org/2001/XMLSchema#> .
+
+<http://kxstudio.sf.net/ns/lv2ext/props>
+    a owl:Ontology ;
+    rdfs:seeAlso <props.h> ,
+        <props.doap.ttl> ,
+        <../kx-meta/meta.ttl> ;
+    rdfs:comment "A set of custom LV2 properties created by and for KXStudio related projects." .
+
+props:NonAutomatable
+    a lv2:PortProperty ;
+    rdfs:label "non automatable" ;
+    rdfs:comment "Port should not be automated by the host." .
+
+props:TimePositionTicksPerBeat
+    a rdf:Property , owl:DatatypeProperty , opts:Option ;
+    rdfs:range xsd:float ;
+    rdfs:label "ticks per beat" ;
+    rdfs:comment "How many ticks are in a beat." .
+
+props:TransientWindowId
+    a rdf:Property , owl:DatatypeProperty , opts:Option ;
+    rdfs:label "transient window id" ;
+    rdfs:comment "A window id from the host to be set as transient hint by the plugin." .