diff --git a/rhodecode/lib/vcs/utils/lazy.py b/rhodecode/lib/vcs/utils/lazy.py
new file mode 100644
--- /dev/null
+++ b/rhodecode/lib/vcs/utils/lazy.py
@@ -0,0 +1,27 @@
+class LazyProperty(object):
+    """
+    Decorator for easier creation of ``property`` from potentially expensive to
+    calculate attribute of the class.
+
+    Usage::
+
+      class Foo(object):
+          @LazyProperty
+          def bar(self):
+              print 'Calculating self._bar'
+              return 42
+
+    Taken from http://blog.pythonisito.com/2008/08/lazy-descriptors.html and
+    used widely.
+    """
+
+    def __init__(self, func):
+        self._func = func
+        self.__name__ = func.__name__
+        self.__doc__ = func.__doc__
+
+    def __get__(self, obj, klass=None):
+        if obj is None:
+            return None
+        result = obj.__dict__[self.__name__] = self._func(obj)
+        return result