diff --git a/blocks/blocks/xcosblocks/models.py b/blocks/blocks/xcosblocks/models.py
index a8d19dd2..d9e336b1 100644
--- a/blocks/blocks/xcosblocks/models.py
+++ b/blocks/blocks/xcosblocks/models.py
@@ -1,4 +1,5 @@
 from django.db import models
+from django.core.validators import MaxValueValidator, MinValueValidator
 
 
 class BlockType(models.Model):
@@ -488,3 +489,51 @@ class Meta:
             models.UniqueConstraint(fields=['block', 'port_order'],
                                     name='unique_block_port_order')
         ]
+
+
+class BlockTemp(models.Model):
+    id = models.AutoField(primary_key=True)
+    name = models.CharField(max_length=100)
+    blockprefix = models.ForeignKey(BlockPrefix, default=1,
+                                    on_delete=models.PROTECT, related_name='+')
+    main_category = models.ForeignKey(Category, null=True,
+                                      on_delete=models.PROTECT, related_name='+')
+    categories = models.ManyToManyField(Category)
+    block_name = models.CharField(max_length=200,
+                                  unique=True, null=True)
+    initial_display_parameter = models.CharField(max_length=100,
+                                                 blank=True, null=True)
+    simulation_function = models.CharField(max_length=100,
+                                           blank=True, null=True)
+    block_image_path = models.CharField(max_length=100,
+                                        blank=True, null=True)
+    block_width = models.IntegerField(default=40)
+    block_height = models.IntegerField(default=40)
+
+    def __str__(self):
+        """String for representing the Model object."""
+        return self.name
+
+    class Meta:
+        constraints = [
+            models.UniqueConstraint(fields=['main_category', 'name'],
+                                    name='unique_category_name')
+        ]
+
+class CommonBlockParameterTemp(models.Model):
+    block_param_id = models.IntegerField(validators=[MinValueValidator(0),MaxValueValidator(60)]) # 0 to 60
+    label = models.CharField(max_length=100, blank=True, null=True) #p000
+    type = models.ForeignKey(ParameterDataType, on_delete=models.PROTECT,
+                                  related_name='+', blank=True, null=True) #p000_type
+    help = models.CharField(max_length=100, blank=True, null=True) #p000_help
+    block = models.ForeignKey(BlockTemp, on_delete=models.CASCADE, related_name='+', blank=True, null=True) #p000_block
+    value = models.CharField(max_length=100, blank=True, null=True) #p000_value_initial
+    def __str__(self):
+        """String for representing the Model object."""
+        return self.name
+    
+    class Meta:
+        constraints = [
+            models.UniqueConstraint(fields=['block_id', 'block'],
+                                    name='unique_block_parameter_name')
+        ]
diff --git a/blocks/blocks/xcosblocks/serializers.py b/blocks/blocks/xcosblocks/serializers.py
index 6ee0d4ad..2445dc56 100644
--- a/blocks/blocks/xcosblocks/serializers.py
+++ b/blocks/blocks/xcosblocks/serializers.py
@@ -3,6 +3,7 @@
 from .models import BlockType, Category, ParameterDataType, BlockPrefix, \
     BlockPrefixParameter, Block, BlockParameter, BlockPort
 
+from .models import CommonBlockParameterTemp, BlockTemp
 from .xcosblocks import *
 
 
@@ -465,3 +466,19 @@ class SetBlockPortSerializer(serializers.Serializer):
     simulation_function = serializers.CharField(
         max_length=100, allow_blank=True, trim_whitespace=True)
     ports = serializers.StringRelatedField(many=True)
+
+
+class CommonBlockParameterTemp(serializers.ModelSerializer):
+    class Meta:
+        model = CommonBlockParameterTemp
+        fields = [ 'id', 'label', 'type', 'help','value', 'block', 'block_param_id']
+
+class BlockTemp(serializers.ModelSerializer):
+    blockprefix = BlockPrefixSerializer()
+    main_category = CategorySerializer()
+    categories = CategorySerializer(many=True)
+    blockport_set = BlockPortSerializer(many=True)
+    class Meta:
+        model = BlockTemp
+        fields = [ 'id','name', 'blockprefix', 'main_category', 'categories', 'block_name', 'initial_display_parameter',
+                  'simulation_function', 'block_image_path', 'block_width', 'block_height']