diff --git a/python/core/auto_generated/geometry/qgsrectangle.sip.in b/python/core/auto_generated/geometry/qgsrectangle.sip.in
index 627508f9935..04122d80871 100644
--- a/python/core/auto_generated/geometry/qgsrectangle.sip.in
+++ b/python/core/auto_generated/geometry/qgsrectangle.sip.in
@@ -59,7 +59,6 @@ Copy constructor
 
     ~QgsRectangle();
 
-
     static QgsRectangle fromWkt( const QString &wkt );
 %Docstring
 Creates a new rectangle from a ``wkt`` string.
diff --git a/src/core/geometry/qgsgeometry.cpp b/src/core/geometry/qgsgeometry.cpp
index d1f2d2161e8..99818919e05 100644
--- a/src/core/geometry/qgsgeometry.cpp
+++ b/src/core/geometry/qgsgeometry.cpp
@@ -1204,7 +1204,7 @@ QgsRectangle QgsGeometry::boundingBox() const
   {
     return d->geometry->boundingBox();
   }
-  return QgsRectangle::createNull();
+  return QgsRectangle();
 }
 
 QgsBox3D QgsGeometry::boundingBox3D() const
diff --git a/src/core/geometry/qgsrectangle.h b/src/core/geometry/qgsrectangle.h
index b5666fefcdf..f78be34aa06 100644
--- a/src/core/geometry/qgsrectangle.h
+++ b/src/core/geometry/qgsrectangle.h
@@ -99,22 +99,6 @@ class CORE_EXPORT QgsRectangle
     // see https://github.com/qgis/QGIS/pull/4720#issuecomment-308652392
     ~QgsRectangle() = default;
 
-    /**
-    * Creates a null rectangle.
-    *
-    * This is a temporary method to use while the default
-    * constructor is still not constructing a null rectangle.
-    *
-    * \since QGIS 3.34
-    */
-    static QgsRectangle createNull() SIP_SKIP
-    {
-      // TODO: remove this method once the default constructor gives a null
-      QgsRectangle rectNull;
-      rectNull.setNull(); // TODO: have setNull() return *this ?
-      return rectNull;
-    }
-
     /**
     * Creates a new rectangle from a \a wkt string.
     * The WKT must contain only 5 vertices, representing a rectangle aligned with X and Y axes.
diff --git a/tests/src/core/geometry/testqgsgeometry.cpp b/tests/src/core/geometry/testqgsgeometry.cpp
index 45ab6f5a4db..4e9ef1887d7 100644
--- a/tests/src/core/geometry/testqgsgeometry.cpp
+++ b/tests/src/core/geometry/testqgsgeometry.cpp
@@ -837,7 +837,7 @@ void TestQgsGeometry::fromPolyline()
 
 void TestQgsGeometry::fromRect()
 {
-  QgsRectangle rectNull = QgsRectangle::createNull();
+  QgsRectangle rectNull;
 
   QgsGeometry fromRect = QgsGeometry::fromRect( rectNull );
   QVERIFY( fromRect.isNull() );
@@ -2183,7 +2183,7 @@ void TestQgsGeometry::orientedMinimumBoundingBox()
 void TestQgsGeometry::boundingBox()
 {
   QgsGeometry geomTest;
-  QgsRectangle nullRect = QgsRectangle::createNull();
+  QgsRectangle nullRect;
   QCOMPARE( geomTest.boundingBox(), nullRect );
 
   geomTest = QgsGeometry::fromWkt( QStringLiteral( "LINESTRING(-1 -2, 4 5)" ) );
diff --git a/tests/src/providers/testqgsvirtuallayerprovider.cpp b/tests/src/providers/testqgsvirtuallayerprovider.cpp
index 5471e39b83a..561271a3fd9 100644
--- a/tests/src/providers/testqgsvirtuallayerprovider.cpp
+++ b/tests/src/providers/testqgsvirtuallayerprovider.cpp
@@ -83,7 +83,7 @@ void TestQgsVirtualLayerProvider::testConstructor()
   QString uri;
   std::unique_ptr<QgsVectorDataProvider> prov( new QgsVirtualLayerProvider( uri, opts ) );
 
-  const QgsRectangle rectNull = QgsRectangle::createNull();
+  const QgsRectangle rectNull;
   QCOMPARE( prov->sourceExtent(), rectNull );
 }