diff --git a/cmd/receptor/cell_test.go b/cmd/receptor/cell_test.go
index 71454cc..c5741e9 100644
--- a/cmd/receptor/cell_test.go
+++ b/cmd/receptor/cell_test.go
@@ -20,7 +20,8 @@ var _ = Describe("Cell API", func() {
 
 	BeforeEach(func() {
 		heartbeatInterval = 100 * time.Millisecond
-		cellPresence = models.NewCellPresence("cell-0", "stack-0", "1.2.3.4", "the-zone")
+		capacity := models.NewCellCapacity(128, 1024, 6)
+		cellPresence = models.NewCellPresence("cell-0", "stack-0", "1.2.3.4", "the-zone", capacity)
 		heartbeatRunner := bbs.NewCellHeartbeat(cellPresence, heartbeatInterval)
 		heartbeatProcess = ginkgomon.Invoke(heartbeatRunner)
 		receptorProcess = ginkgomon.Invoke(receptorRunner)
diff --git a/handlers/cell_handlers_test.go b/handlers/cell_handlers_test.go
index 4b47711..c4a3a56 100644
--- a/handlers/cell_handlers_test.go
+++ b/handlers/cell_handlers_test.go
@@ -36,9 +36,10 @@ var _ = Describe("Cell Handlers", func() {
 		var cellPresences []models.CellPresence
 
 		BeforeEach(func() {
+			capacity := models.NewCellCapacity(128, 1024, 6)
 			cellPresences = []models.CellPresence{
-				models.NewCellPresence("cell-id-0", "stack-0", "1.2.3.4", "the-zone"),
-				models.NewCellPresence("cell-id-1", "stack-1", "4.5.6.7", "the-zone"),
+				models.NewCellPresence("cell-id-0", "stack-0", "1.2.3.4", "the-zone", capacity),
+				models.NewCellPresence("cell-id-1", "stack-1", "4.5.6.7", "the-zone", capacity),
 			}
 		})
 
diff --git a/resources.go b/resources.go
index fed9898..662fc32 100644
--- a/resources.go
+++ b/resources.go
@@ -414,8 +414,16 @@ type ActualLRPResponse struct {
 }
 
 type CellResponse struct {
-	CellID string `json:"cell_id"`
-	Stack  string `json:"stack"`
+	CellID   string `json:"cell_id"`
+	Stack    string `json:"stack"`
+	Zone     string `json:"zone"`
+	Capacity CellCapacity
+}
+
+type CellCapacity struct {
+	MemoryMB   int `json:"memory_mb"`
+	DiskMB     int `json:"disk_mb"`
+	Containers int `json:"containers"`
 }
 
 type Event interface {
diff --git a/serialization/cells.go b/serialization/cells.go
index 2dc2cb2..aebca9e 100644
--- a/serialization/cells.go
+++ b/serialization/cells.go
@@ -9,5 +9,11 @@ func CellPresenceToCellResponse(cellPresence models.CellPresence) receptor.CellR
 	return receptor.CellResponse{
 		CellID: cellPresence.CellID,
 		Stack:  cellPresence.Stack,
+		Zone:   cellPresence.Zone,
+		Capacity: receptor.CellCapacity{
+			MemoryMB:   cellPresence.Capacity.MemoryMB,
+			DiskMB:     cellPresence.Capacity.DiskMB,
+			Containers: cellPresence.Capacity.Containers,
+		},
 	}
 }
diff --git a/serialization/cells_test.go b/serialization/cells_test.go
index beb9cc3..cf3b3b8 100644
--- a/serialization/cells_test.go
+++ b/serialization/cells_test.go
@@ -14,13 +14,20 @@ var _ = Describe("CellPresence Serialization", func() {
 		var cellPresence models.CellPresence
 
 		BeforeEach(func() {
-			cellPresence = models.NewCellPresence("cell-id-0", "stack-0", "1.2.3.4", "the-zone")
+			capacity := models.NewCellCapacity(128, 1024, 6)
+			cellPresence = models.NewCellPresence("cell-id-0", "stack-0", "1.2.3.4", "the-zone", capacity)
 		})
 
 		It("serializes all the fields", func() {
 			expectedResponse := receptor.CellResponse{
 				CellID: "cell-id-0",
 				Stack:  "stack-0",
+				Zone:   "the-zone",
+				Capacity: receptor.CellCapacity{
+					MemoryMB:   128,
+					DiskMB:     1024,
+					Containers: 6,
+				},
 			}
 
 			actualResponse := serialization.CellPresenceToCellResponse(cellPresence)