diff --git a/pkg/apis/apps/types.go b/pkg/apis/apps/types.go
index 1f0bae8f5bd..377d9e122ef 100644
--- a/pkg/apis/apps/types.go
+++ b/pkg/apis/apps/types.go
@@ -195,6 +195,27 @@ type StatefulSetStatus struct {
 	// newest ControllerRevision.
 	// +optional
 	CollisionCount *int32
+
+	// Represents the latest available observations of a statefulset's current state.
+	Conditions []StatefulSetCondition
+}
+
+type StatefulSetConditionType string
+
+// TODO: Add valid condition types for Statefulsets.
+
+// StatefulSetCondition describes the state of a statefulset at a certain point.
+type StatefulSetCondition struct {
+	// Type of statefulset condition.
+	Type StatefulSetConditionType
+	// Status of the condition, one of True, False, Unknown.
+	Status api.ConditionStatus
+	// The last time this condition was updated.
+	LastTransitionTime metav1.Time
+	// The reason for the condition's last transition.
+	Reason string
+	// A human readable message indicating details about the transition.
+	Message string
 }
 
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
diff --git a/pkg/apis/apps/v1/conversion.go b/pkg/apis/apps/v1/conversion.go
index 44a3996389e..0908f7fc2bb 100644
--- a/pkg/apis/apps/v1/conversion.go
+++ b/pkg/apis/apps/v1/conversion.go
@@ -465,6 +465,12 @@ func Convert_v1_StatefulSetStatus_To_apps_StatefulSetStatus(in *appsv1.StatefulS
 		out.CollisionCount = new(int32)
 		*out.CollisionCount = *in.CollisionCount
 	}
+	out.Conditions = make([]apps.StatefulSetCondition, len(in.Conditions))
+	for i := range in.Conditions {
+		if err := Convert_v1_StatefulSetCondition_To_apps_StatefulSetCondition(&in.Conditions[i], &out.Conditions[i], s); err != nil {
+			return err
+		}
+	}
 	return nil
 }
 
@@ -482,5 +488,11 @@ func Convert_apps_StatefulSetStatus_To_v1_StatefulSetStatus(in *apps.StatefulSet
 		out.CollisionCount = new(int32)
 		*out.CollisionCount = *in.CollisionCount
 	}
+	out.Conditions = make([]appsv1.StatefulSetCondition, len(in.Conditions))
+	for i := range in.Conditions {
+		if err := Convert_apps_StatefulSetCondition_To_v1_StatefulSetCondition(&in.Conditions[i], &out.Conditions[i], s); err != nil {
+			return err
+		}
+	}
 	return nil
 }
diff --git a/pkg/apis/apps/v1beta2/conversion.go b/pkg/apis/apps/v1beta2/conversion.go
index f6292cb96bf..ba5096b63b1 100644
--- a/pkg/apis/apps/v1beta2/conversion.go
+++ b/pkg/apis/apps/v1beta2/conversion.go
@@ -223,6 +223,12 @@ func Convert_v1beta2_StatefulSetStatus_To_apps_StatefulSetStatus(in *appsv1beta2
 		out.CollisionCount = new(int32)
 		*out.CollisionCount = *in.CollisionCount
 	}
+	out.Conditions = make([]apps.StatefulSetCondition, len(in.Conditions))
+	for i := range in.Conditions {
+		if err := Convert_v1beta2_StatefulSetCondition_To_apps_StatefulSetCondition(&in.Conditions[i], &out.Conditions[i], s); err != nil {
+			return err
+		}
+	}
 	return nil
 }
 
@@ -240,6 +246,12 @@ func Convert_apps_StatefulSetStatus_To_v1beta2_StatefulSetStatus(in *apps.Statef
 		out.CollisionCount = new(int32)
 		*out.CollisionCount = *in.CollisionCount
 	}
+	out.Conditions = make([]appsv1beta2.StatefulSetCondition, len(in.Conditions))
+	for i := range in.Conditions {
+		if err := Convert_apps_StatefulSetCondition_To_v1beta2_StatefulSetCondition(&in.Conditions[i], &out.Conditions[i], s); err != nil {
+			return err
+		}
+	}
 	return nil
 }
 
diff --git a/staging/src/k8s.io/api/apps/v1/types.go b/staging/src/k8s.io/api/apps/v1/types.go
index 4e5e25d3d00..9ddbb153a12 100644
--- a/staging/src/k8s.io/api/apps/v1/types.go
+++ b/staging/src/k8s.io/api/apps/v1/types.go
@@ -206,6 +206,31 @@ type StatefulSetStatus struct {
 	// newest ControllerRevision.
 	// +optional
 	CollisionCount *int32 `json:"collisionCount,omitempty" protobuf:"varint,9,opt,name=collisionCount"`
+
+	// Represents the latest available observations of a statefulset's current state.
+	// +optional
+	// +patchMergeKey=type
+	// +patchStrategy=merge
+	Conditions []StatefulSetCondition `json:"conditions,omitempty" patchStrategy:"merge" patchMergeKey:"type"`
+}
+
+type StatefulSetConditionType string
+
+// StatefulSetCondition describes the state of a statefulset at a certain point.
+type StatefulSetCondition struct {
+	// Type of statefulset condition.
+	Type StatefulSetConditionType `json:"type"`
+	// Status of the condition, one of True, False, Unknown.
+	Status v1.ConditionStatus `json:"status"`
+	// Last time the condition transitioned from one status to another.
+	// +optional
+	LastTransitionTime metav1.Time `json:"lastTransitionTime,omitempty"`
+	// The reason for the condition's last transition.
+	// +optional
+	Reason string `json:"reason,omitempty"`
+	// A human readable message indicating details about the transition.
+	// +optional
+	Message string `json:"message,omitempty"`
 }
 
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
diff --git a/staging/src/k8s.io/api/apps/v1beta1/types.go b/staging/src/k8s.io/api/apps/v1beta1/types.go
index 63d1c725d8d..78e3d1c04ab 100644
--- a/staging/src/k8s.io/api/apps/v1beta1/types.go
+++ b/staging/src/k8s.io/api/apps/v1beta1/types.go
@@ -247,6 +247,31 @@ type StatefulSetStatus struct {
 	// newest ControllerRevision.
 	// +optional
 	CollisionCount *int32 `json:"collisionCount,omitempty" protobuf:"varint,9,opt,name=collisionCount"`
+
+	// Represents the latest available observations of a statefulset's current state.
+	// +optional
+	// +patchMergeKey=type
+	// +patchStrategy=merge
+	Conditions []StatefulSetCondition `json:"conditions,omitempty" patchStrategy:"merge" patchMergeKey:"type"`
+}
+
+type StatefulSetConditionType string
+
+// StatefulSetCondition describes the state of a statefulset at a certain point.
+type StatefulSetCondition struct {
+	// Type of statefulset condition.
+	Type StatefulSetConditionType `json:"type"`
+	// Status of the condition, one of True, False, Unknown.
+	Status v1.ConditionStatus `json:"status"`
+	// Last time the condition transitioned from one status to another.
+	// +optional
+	LastTransitionTime metav1.Time `json:"lastTransitionTime,omitempty"`
+	// The reason for the condition's last transition.
+	// +optional
+	Reason string `json:"reason,omitempty"`
+	// A human readable message indicating details about the transition.
+	// +optional
+	Message string `json:"message,omitempty"`
 }
 
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
diff --git a/staging/src/k8s.io/api/apps/v1beta2/types.go b/staging/src/k8s.io/api/apps/v1beta2/types.go
index e45884eaca4..941c35d3f56 100644
--- a/staging/src/k8s.io/api/apps/v1beta2/types.go
+++ b/staging/src/k8s.io/api/apps/v1beta2/types.go
@@ -254,6 +254,31 @@ type StatefulSetStatus struct {
 	// newest ControllerRevision.
 	// +optional
 	CollisionCount *int32 `json:"collisionCount,omitempty" protobuf:"varint,9,opt,name=collisionCount"`
+
+	// Represents the latest available observations of a statefulset's current state.
+	// +optional
+	// +patchMergeKey=type
+	// +patchStrategy=merge
+	Conditions []StatefulSetCondition `json:"conditions,omitempty" patchStrategy:"merge" patchMergeKey:"type"`
+}
+
+type StatefulSetConditionType string
+
+// StatefulSetCondition describes the state of a statefulset at a certain point.
+type StatefulSetCondition struct {
+	// Type of statefulset condition.
+	Type StatefulSetConditionType `json:"type"`
+	// Status of the condition, one of True, False, Unknown.
+	Status v1.ConditionStatus `json:"status"`
+	// Last time the condition transitioned from one status to another.
+	// +optional
+	LastTransitionTime metav1.Time `json:"lastTransitionTime,omitempty"`
+	// The reason for the condition's last transition.
+	// +optional
+	Reason string `json:"reason,omitempty"`
+	// A human readable message indicating details about the transition.
+	// +optional
+	Message string `json:"message,omitempty"`
 }
 
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object