Index: Ringtoets/Revetment/src/Ringtoets.Revetment.Data/WaveConditionsInput.cs
===================================================================
diff -u -rd2b9feaf8aceaa9a96d0e6e19fd6fbbee8987ca6 -re4313e642aa3af2d1f1ced4c397c421579cfb36d
--- Ringtoets/Revetment/src/Ringtoets.Revetment.Data/WaveConditionsInput.cs	(.../WaveConditionsInput.cs)	(revision d2b9feaf8aceaa9a96d0e6e19fd6fbbee8987ca6)
+++ Ringtoets/Revetment/src/Ringtoets.Revetment.Data/WaveConditionsInput.cs	(.../WaveConditionsInput.cs)	(revision e4313e642aa3af2d1f1ced4c397c421579cfb36d)
@@ -66,6 +66,18 @@
         public HydraulicBoundaryLocation HydraulicBoundaryLocation { get; set; }
 
         /// <summary>
+        /// Gets the assessment level from the current hydraulic boundary location, or <see cref="double.NaN"/> if there is no
+        /// location selected.
+        /// </summary>
+        public RoundedDouble AssessmentLevel
+        {
+            get
+            {
+                return HydraulicBoundaryLocation != null ? HydraulicBoundaryLocation.DesignWaterLevel : new RoundedDouble(2, double.NaN);
+            }
+        }
+
+        /// <summary>
         /// Gets or sets the foreshore profile.
         /// </summary>
         public ForeshoreProfile ForeshoreProfile
@@ -116,9 +128,7 @@
         {
             get
             {
-                return new RoundedDouble(2, HydraulicBoundaryLocation != null && !double.IsNaN(HydraulicBoundaryLocation.DesignWaterLevel)
-                                                ? HydraulicBoundaryLocation.DesignWaterLevel - designWaterLevelSubstraction
-                                                : double.NaN);
+                return new RoundedDouble(2, AssessmentLevel - designWaterLevelSubstraction);
             }
         }