diff --git a/InvenTree/InvenTree/version.py b/InvenTree/InvenTree/version.py
index 5a6e213443..19373e930c 100644
--- a/InvenTree/InvenTree/version.py
+++ b/InvenTree/InvenTree/version.py
@@ -12,11 +12,15 @@ import common.models
 INVENTREE_SW_VERSION = "0.7.0 dev"
 
 # InvenTree API version
-INVENTREE_API_VERSION = 29
+INVENTREE_API_VERSION = 30
 
 """
 Increment this API version number whenever there is a significant change to the API that any clients need to know about
 
+v30 -> 2022-03-09
+    - Adds "exclude_location" field to BuildAutoAllocation API endpoint
+    - Allows BuildItem API endpoint to be filtered by BomItem relation
+
 v29 -> 2022-03-08
     - Adds "scheduling" endpoint for predicted stock scheduling information
 
diff --git a/InvenTree/build/api.py b/InvenTree/build/api.py
index 114268fa2b..33f3f4ab36 100644
--- a/InvenTree/build/api.py
+++ b/InvenTree/build/api.py
@@ -461,6 +461,7 @@ class BuildItemList(generics.ListCreateAPIView):
     filter_fields = [
         'build',
         'stock_item',
+        'bom_item',
         'install_into',
     ]
 
diff --git a/InvenTree/build/models.py b/InvenTree/build/models.py
index d58180356e..9ba348b0b4 100644
--- a/InvenTree/build/models.py
+++ b/InvenTree/build/models.py
@@ -842,6 +842,7 @@ class Build(MPTTModel, ReferenceIndexingMixin):
         """
 
         location = kwargs.get('location', None)
+        exclude_location = kwargs.get('exclude_location', None)
         interchangeable = kwargs.get('interchangeable', False)
         substitutes = kwargs.get('substitutes', True)
 
@@ -875,6 +876,11 @@ class Build(MPTTModel, ReferenceIndexingMixin):
                 sublocations = location.get_descendants(include_self=True)
                 available_stock = available_stock.filter(location__in=[loc for loc in sublocations])
 
+            if exclude_location:
+                # Exclude any stock items from the provided location
+                sublocations = exclude_location.get_descendants(include_self=True)
+                available_stock = available_stock.exclude(location__in=[loc for loc in sublocations])
+
             """
             Next, we sort the available stock items with the following priority:
             1. Direct part matches (+1)
diff --git a/InvenTree/build/serializers.py b/InvenTree/build/serializers.py
index ba43a079ff..4b55182563 100644
--- a/InvenTree/build/serializers.py
+++ b/InvenTree/build/serializers.py
@@ -717,6 +717,7 @@ class BuildAutoAllocationSerializer(serializers.Serializer):
     class Meta:
         fields = [
             'location',
+            'exclude_location',
             'interchangeable',
             'substitutes',
         ]
@@ -730,6 +731,15 @@ class BuildAutoAllocationSerializer(serializers.Serializer):
         help_text=_('Stock location where parts are to be sourced (leave blank to take from any location)'),
     )
 
+    exclude_location = serializers.PrimaryKeyRelatedField(
+        queryset=StockLocation.objects.all(),
+        many=False,
+        allow_null=True,
+        required=False,
+        label=_('Exclude Location'),
+        help_text=_('Exclude stock items from this selected location'),
+    )
+
     interchangeable = serializers.BooleanField(
         default=False,
         label=_('Interchangeable Stock'),
@@ -750,6 +760,7 @@ class BuildAutoAllocationSerializer(serializers.Serializer):
 
         build.auto_allocate_stock(
             location=data.get('location', None),
+            exclude_location=data.get('exclude_location', None),
             interchangeable=data['interchangeable'],
             substitutes=data['substitutes'],
         )
diff --git a/InvenTree/templates/js/translated/build.js b/InvenTree/templates/js/translated/build.js
index 8a894189e8..5b416b4d22 100644
--- a/InvenTree/templates/js/translated/build.js
+++ b/InvenTree/templates/js/translated/build.js
@@ -1219,6 +1219,18 @@ function loadBuildOutputAllocationTable(buildInfo, output, options={}) {
                             $(table).bootstrapTable('updateByUniqueId', key, tableRow, true);
                         }
 
+                        // Update any rows which we did not receive allocation information for
+                        var td = $(table).bootstrapTable('getData');
+
+                        td.forEach(function(tableRow) {
+                            if (tableRow.allocations == null) {
+
+                                tableRow.allocations = [];
+
+                                $(table).bootstrapTable('updateByUniqueId', tableRow.pk, tableRow, true);
+                            }
+                        });
+
                         // Update the progress bar for this build output
                         var build_progress = $(`#output-progress-${outputId}`);
 
@@ -1419,15 +1431,17 @@ function loadBuildOutputAllocationTable(buildInfo, output, options={}) {
                 formatter: function(value, row) {
                     var allocated = 0;
 
-                    if (row.allocations) {
+                    if (row.allocations != null) {
                         row.allocations.forEach(function(item) {
                             allocated += item.quantity;
                         });
+
+                        var required = requiredQuantity(row);
+
+                        return makeProgressBar(allocated, required);
+                    } else {
+                        return `<em>{% trans "loading" %}...</em><span class='fas fa-spinner fa-spin float-right'></span>`;
                     }
-
-                    var required = requiredQuantity(row);
-
-                    return makeProgressBar(allocated, required);
                 },
                 sorter: function(valA, valB, rowA, rowB) {
                     // Custom sorting function for progress bars
@@ -1876,6 +1890,7 @@ function autoAllocateStockToBuild(build_id, bom_items=[], options={}) {
         location: {
             value: options.location,
         },
+        exclude_location: {},
         interchangeable: {
             value: true,
         },