diff --git a/freight/models/app.py b/freight/models/app.py
index 720eeee5..f2f9222f 100644
--- a/freight/models/app.py
+++ b/freight/models/app.py
@@ -49,6 +49,14 @@ def deploy_config(self):
             TaskConfig.type == TaskConfigType.deploy,
         ).first()
 
+    @property
+    def build_config(self):
+        from freight.models import TaskConfig, TaskConfigType
+        return TaskConfig.query.filter(
+            TaskConfig.app_id == self.id,
+            TaskConfig.type == TaskConfigType.build,
+        ).first()
+
     def get_default_ref(self, env):
         data = self.environments.get(env)
         if not data:
diff --git a/freight/models/build.py b/freight/models/build.py
new file mode 100644
index 00000000..c21b6a81
--- /dev/null
+++ b/freight/models/build.py
@@ -0,0 +1,22 @@
+from __future__ import absolute_import
+
+from sqlalchemy import Column, ForeignKey, Integer
+from sqlalchemy.schema import Index, UniqueConstraint
+
+from freight.config import db
+
+
+class Build(db.Model):
+    __tablename__ = 'build'
+    __table_args__ = (
+        Index('idx_build_task_id', 'task_id'),
+        Index('idx_build_app_id', 'app_id'),
+        UniqueConstraint('task_id', 'app_id', 'number', name='unq_build_number'),
+    )
+
+    id = Column(Integer, primary_key=True)
+    task_id = Column(Integer, ForeignKey('task.id', ondelete='CASCADE'),
+                    nullable=False)
+    app_id = Column(Integer, ForeignKey('app.id', ondelete='CASCADE'),
+                    nullable=False)
+    number = Column(Integer, nullable=False)
diff --git a/freight/models/buildsequence.py b/freight/models/buildsequence.py
new file mode 100644
index 00000000..93b285fa
--- /dev/null
+++ b/freight/models/buildsequence.py
@@ -0,0 +1,18 @@
+from __future__ import absolute_import
+
+from sqlalchemy import Column, Integer
+from sqlalchemy.sql import func, select
+
+from freight.config import db
+
+
+class BuildSequence(db.Model):
+    __tablename__ = 'buildsequence'
+
+    app_id = Column(Integer, nullable=False, primary_key=True)
+    value = Column(Integer, default=0, server_default='0', nullable=False,
+                   primary_key=True)
+
+    @classmethod
+    def get_clause(self, app_id):
+        return select([func.next_build_number(app_id)])
diff --git a/freight/models/taskconfig.py b/freight/models/taskconfig.py
index 84beaa00..f14d72f0 100644
--- a/freight/models/taskconfig.py
+++ b/freight/models/taskconfig.py
@@ -9,6 +9,7 @@
 
 class TaskConfigType(object):
     deploy = 0
+    build = 1
 
     @classmethod
     def get_label(cls, status):
@@ -21,6 +22,7 @@ def label_to_id(cls, label):
 
 TYPE_LABELS = {
     TaskConfigType.deploy: 'deploy',
+    TaskConfigType.build: 'build',
 }
 TYPE_LABELS_REV = {
     v: k for k, v in TYPE_LABELS.items()
diff --git a/migrations/versions/18ff76b912af_create_buildsequence_table.py b/migrations/versions/18ff76b912af_create_buildsequence_table.py
new file mode 100644
index 00000000..557ac958
--- /dev/null
+++ b/migrations/versions/18ff76b912af_create_buildsequence_table.py
@@ -0,0 +1,26 @@
+"""
+Create buildsequence table.
+
+Revision ID: 18ff76b912af
+Revises: 493c6c33fa27
+Create Date: 2016-05-05 14:47:50.243970
+"""
+
+# revision identifiers, used by Alembic.
+revision = '18ff76b912af'
+down_revision = '493c6c33fa27'
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    op.create_table('buildsequence',
+        sa.Column('app_id', sa.Integer(), nullable=False),
+        sa.Column('value', sa.Integer(), server_default='0', nullable=False),
+        sa.PrimaryKeyConstraint('app_id', 'value')
+    )
+
+
+def downgrade():
+    op.drop_table('buildsequence')
diff --git a/migrations/versions/493c6c33fa27_create_build_table.py b/migrations/versions/493c6c33fa27_create_build_table.py
new file mode 100644
index 00000000..54eb615d
--- /dev/null
+++ b/migrations/versions/493c6c33fa27_create_build_table.py
@@ -0,0 +1,35 @@
+"""
+Create build table.
+
+Revision ID: 493c6c33fa27
+Revises: 205fd513c96
+Create Date: 2016-05-05 14:31:38.491777
+"""
+
+# revision identifiers, used by Alembic.
+revision = '493c6c33fa27'
+down_revision = '205fd513c96'
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    op.create_table('build',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('task_id', sa.Integer(), nullable=False),
+        sa.Column('app_id', sa.Integer(), nullable=False),
+        sa.Column('number', sa.Integer(), nullable=False),
+        sa.ForeignKeyConstraint(['app_id'], ['app.id'], ondelete='CASCADE'),
+        sa.ForeignKeyConstraint(['task_id'], ['task.id'], ondelete='CASCADE'),
+        sa.PrimaryKeyConstraint('id'),
+        sa.UniqueConstraint('task_id', 'app_id', 'number', name='unq_build_number')
+    )
+    op.create_index('idx_build_app_id', 'build', ['app_id'], unique=False)
+    op.create_index('idx_build_task_id', 'build', ['task_id'], unique=False)
+
+
+def downgrade():
+    op.drop_index('idx_build_task_id', table_name='build')
+    op.drop_index('idx_build_app_id', table_name='build')
+    op.drop_table('build')