diff --git a/dataswamp/namespace/entities.go b/dataswamp/namespace/entities.go
index f26dc1f..28a32ff 100644
--- a/dataswamp/namespace/entities.go
+++ b/dataswamp/namespace/entities.go
@@ -11,6 +11,7 @@ type Namespace struct {
 	LastSeen          time.Time
 	AllowanceDuration time.Duration
 	FileQuota         FileSizeQuota
+	Usage             Usage
 }
 
 var (
diff --git a/dataswamp/namespace/valueobjects.go b/dataswamp/namespace/valueobjects.go
index 5b0e4a6..d47f04f 100644
--- a/dataswamp/namespace/valueobjects.go
+++ b/dataswamp/namespace/valueobjects.go
@@ -32,3 +32,28 @@ func (f *FileSizeQuota) Remove(size int64) error {
 
 	return nil
 }
+
+type Usage struct {
+	Uploads   int64
+	UploadB   int64
+	Downloads int64
+	DownloadB int64
+}
+
+func (u Usage) Uploaded(size int64) Usage {
+	return Usage{
+		u.Uploads + 1,
+		u.UploadB + size,
+		u.Downloads,
+		u.DownloadB,
+	}
+}
+
+func (u Usage) Downloaded(size int64) Usage {
+	return Usage{
+		u.Uploads,
+		u.UploadB,
+		u.Downloads + 1,
+		u.DownloadB + size,
+	}
+}
diff --git a/dataswamp/services.go b/dataswamp/services.go
index 6ed4a10..a9fae27 100644
--- a/dataswamp/services.go
+++ b/dataswamp/services.go
@@ -38,6 +38,7 @@ func (s SwampFileService) getOrCreateNs(namespace_in string) *namespace.Namespac
 			time.Now(),
 			s.default_allowance_duration,
 			namespace.FileSizeQuota{s.default_allowance_bytes, 0},
+			namespace.Usage{0, 0, 0, 0},
 		}
 		created_ns, err := s.namespace_repo.Create(new_ns)
 
diff --git a/infrastructure/memory/namespace/repository_test.go b/infrastructure/memory/namespace/repository_test.go
index efd0869..e68cc1a 100644
--- a/infrastructure/memory/namespace/repository_test.go
+++ b/infrastructure/memory/namespace/repository_test.go
@@ -16,7 +16,14 @@ func TestUserAgentRepo(t *testing.T) {
 	is.NoErr(err)
 	is.Equal(len(all), 0)
 
-	ns := namespace.Namespace{23, "n1", time.Now(), time.Duration(time.Hour * 3), namespace.FileSizeQuota{1000, 0}}
+	ns := namespace.Namespace{
+		23,
+		"n1",
+		time.Now(),
+		time.Duration(time.Hour * 3),
+		namespace.FileSizeQuota{1000, 0},
+		namespace.Usage{0, 0, 0, 0},
+	}
 
 	ns1, _ := r.Create(ns)
 	ns.Name = "n2"