diff --git a/stammdaten_gebaeude_CREATE_ONLY_V3.xml b/stammdaten_gebaeude_CREATE_ONLY_V3.xml
new file mode 100644
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+++ b/stammdaten_gebaeude_CREATE_ONLY_V3.xml
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+<?xml version='1.0' encoding='UTF-8'?>
+<h:html xmlns="http://www.w3.org/2002/xforms" xmlns:h="http://www.w3.org/1999/xhtml" xmlns:ev="http://www.w3.org/2001/xml-events" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:jr="http://openrosa.org/javarosa" xmlns:orx="http://openrosa.org/xforms" xmlns:odk="http://www.opendatakit.org/xforms" xmlns:entities="http://www.opendatakit.org/xforms/entities">
+  <h:head>
+    <h:title>Stammdaten Gebäude</h:title>
+    <model odk:xforms-version="1.0.0" entities:entities-version="2024.1.0">
+      <instance>
+        <data id="stammdaten_gebaeude" version="2025-10-09-1-v2-entities1-rename-aktiv2_v2_v3">
+          <gebaeude_modus/>
+          <gebaeude_bearbeiten/>
+          <start/>
+          <today/>
+          <end/>
+          <deviceid/>
+          <kopf>
+            <auftraggeber/>
+            <objekt_nr/>
+            <objekt_name/>
+            <strasse_hausnr/>
+            <plz/>
+            <ort/>
+          </kopf>
+          <mietspiegel>
+            <baujahr_klasse/>
+            <lageklasse/>
+            <aktiv/>
+          </mietspiegel>
+          <fertig/>
+          <meta>
+            <instanceID/>
+            <instanceName/>
+            <entity dataset="gebaeude" id="" update="false()" baseVersion="" trunkVersion="" branchId="" create="true()" entities:dataset="gebaeude">
+              <label/>
+            </entity>
+          </meta>
+        </data>
+      </instance>
+      <instance id="ja_nein">
+        <root>
+          <item>
+            <name>ja</name>
+            <label>Ja</label>
+          </item>
+          <item>
+            <name>nein</name>
+            <label>Nein</label>
+          </item>
+        </root>
+      </instance>
+      <instance id="baujahr_klasse">
+        <root>
+          <item>
+            <name>bis_1918</name>
+            <label>bis 1918</label>
+          </item>
+          <item>
+            <name>1919_1949</name>
+            <label>1919–1949</label>
+          </item>
+          <item>
+            <name>1950_1964</name>
+            <label>1950–1964</label>
+          </item>
+          <item>
+            <name>1965_1972</name>
+            <label>1965–1972</label>
+          </item>
+          <item>
+            <name>1973_1990</name>
+            <label>1973–1990</label>
+          </item>
+          <item>
+            <name>1991_2002</name>
+            <label>1991–2002</label>
+          </item>
+          <item>
+            <name>2003_2013</name>
+            <label>2003–2013</label>
+          </item>
+          <item>
+            <name>ab_2014</name>
+            <label>ab 2014</label>
+          </item>
+          <item>
+            <name>unbekannt</name>
+            <label>unbekannt</label>
+          </item>
+        </root>
+      </instance>
+      <instance id="lage_klasse">
+        <root>
+          <item>
+            <name>einfach</name>
+            <label>einfach</label>
+          </item>
+          <item>
+            <name>mittel</name>
+            <label>mittel</label>
+          </item>
+          <item>
+            <name>gut</name>
+            <label>gut</label>
+          </item>
+          <item>
+            <name>sehr_gut</name>
+            <label>sehr gut</label>
+          </item>
+          <item>
+            <name>unbekannt</name>
+            <label>unbekannt</label>
+          </item>
+        </root>
+      </instance>
+      <instance id="vorgang_modus">
+        <root>
+          <item>
+            <name>neu</name>
+            <label>Neues Gebäude erfassen</label>
+          </item>
+          <item>
+            <name>bearbeiten</name>
+            <label>Bestehendes Gebäude bearbeiten</label>
+          </item>
+        </root>
+      </instance>
+      <bind nodeset="/data/start" jr:preload="timestamp" type="dateTime" jr:preloadParams="start"/>
+      <bind nodeset="/data/today" jr:preload="date" type="date" jr:preloadParams="today"/>
+      <bind nodeset="/data/end" jr:preload="timestamp" type="dateTime" jr:preloadParams="end"/>
+      <bind nodeset="/data/deviceid" jr:preload="property" type="string" jr:preloadParams="deviceid"/>
+      <bind nodeset="/data/kopf/auftraggeber" type="string" required="1" entities:saveto="auftraggeber"/>
+      <bind nodeset="/data/kopf/objekt_nr" type="string" required="1" entities:saveto="objekt_nr"/>
+      <bind nodeset="/data/kopf/objekt_name" type="string" entities:saveto="objekt_name"/>
+      <bind nodeset="/data/kopf/strasse_hausnr" type="string" required="1" entities:saveto="strasse_hausnr"/>
+      <bind nodeset="/data/kopf/plz" type="string" required="1" entities:saveto="plz"/>
+      <bind nodeset="/data/kopf/ort" type="string" required="1" entities:saveto="ort"/>
+      <bind nodeset="/data/mietspiegel/baujahr_klasse" type="string" entities:saveto="baujahr_klasse"/>
+      <bind nodeset="/data/mietspiegel/lageklasse" type="string" entities:saveto="lageklasse"/>
+      <bind nodeset="/data/mietspiegel/aktiv" type="string" entities:saveto="aktiv"/>
+      <bind nodeset="/data/fertig" type="string"/>
+      <bind nodeset="/data/meta/instanceID" type="string" readonly="true()" jr:preload="uid"/>
+      <bind nodeset="/data/meta/instanceName" type="string" calculate="concat( /data/kopf/strasse_hausnr , ', ',  /data/kopf/plz , ' ',  /data/kopf/ort )"/>
+      <bind nodeset="/data/meta/entity/@create" calculate="true()"/>
+      <bind nodeset="/data/meta/entity/@id"/>
+      <bind nodeset="/data/meta/entity/@update" calculate="false()"/>
+      <bind nodeset="/data/meta/entity/label" calculate="concat(/data/kopf/objekt_nr, ' - ', /data/kopf/objekt_name)" type="string" readonly="true()"/>
+      <bind nodeset="/data/meta/entity" entities:dataset="gebaeude"/><bind nodeset="/data/meta/entity" entities:dataset="gebaeude"/><bind nodeset="/data/meta/entity/@id" calculate="if(/data/meta/entity/@id = '', uuid(), /data/meta/entity/@id)"/><setvalue ref="/data/meta/entity/@id" event="odk-instance-first-load" value="if(/data/meta/entity/@id = '', uuid(), /data/meta/entity/@id)"/><setvalue ref="/data/meta/entity/@id" event="xforms-ready" value="if(/data/meta/entity/@id = '', uuid(), /data/meta/entity/@id)"/><setvalue ref="/data/meta/entity/@create" event="xforms-ready" value="'true'"/><setvalue ref="/data/meta/entity/@update" event="xforms-ready" value="'false'"/><bind nodeset="/data/meta/entity/label" calculate="concat(/data/kopf/objekt_nr, ' - ', /data/kopf/objekt_name)"/></model>
+  </h:head>
+  <h:body>
+    <group ref="/data/kopf">
+      <label>Stempelkopf / Auftrag</label>
+      <input ref="/data/kopf/auftraggeber">
+        <label>Auftraggeber / Mandant</label>
+      </input>
+      <input ref="/data/kopf/objekt_nr">
+        <label>Objektnummer</label>
+      </input>
+      <input ref="/data/kopf/objekt_name">
+        <label>Objektbezeichnung</label>
+        <hint>z. B. Stuttgarter Str. 54</hint>
+      </input>
+      <input ref="/data/kopf/strasse_hausnr">
+        <label>Straße und Hausnummer</label>
+      </input>
+      <input appearance="numbers" ref="/data/kopf/plz">
+        <label>PLZ</label>
+      </input>
+      <input ref="/data/kopf/ort">
+        <label>Ort</label>
+      </input>
+    </group>
+    <group ref="/data/mietspiegel">
+      <label>Mietspiegel-relevante Stammdaten</label>
+      <select1 ref="/data/mietspiegel/baujahr_klasse">
+        <label>Baujahr-Klasse</label>
+        <itemset nodeset="instance('baujahr_klasse')/root/item">
+          <value ref="name"/>
+          <label ref="label"/>
+        </itemset>
+      </select1>
+      <select1 ref="/data/mietspiegel/lageklasse">
+        <label>Lageklasse</label>
+        <itemset nodeset="instance('lage_klasse')/root/item">
+          <value ref="name"/>
+          <label ref="label"/>
+        </itemset>
+      </select1>
+      <select1 ref="/data/mietspiegel/aktiv">
+        <label>Projekt aktiv?</label>
+        <itemset nodeset="instance('ja_nein')/root/item">
+          <value ref="name"/>
+          <label ref="label"/>
+        </itemset>
+      </select1>
+    </group>
+    <trigger ref="/data/fertig">
+      <label>Stammdaten-Erfassung abgeschlossen?</label>
+    </trigger>
+  </h:body>
+</h:html>