diff --git a/test/conformance/README.md b/test/conformance/README.md
index 968a12100c5..5ec0bcaf37f 100644
--- a/test/conformance/README.md
+++ b/test/conformance/README.md
@@ -11,10 +11,20 @@ Run test with e2e tag and optionally select conformance test
 > NOTE: Make sure you have built the
 > [test images](https://github.com/knative/eventing/tree/master/test#building-the-test-images)!
 
-```go
+```shell
 go test -v -tags=e2e -count=1 ./test/conformance/...
 
 go test -v -timeout 30s -tags e2e knative.dev/eventing/test/conformance -run ^TestMustPassTracingHeaders$
 
 go test -v -timeout 30s -tags e2e knative.dev/eventing/test/conformance -run ^TestMustPassTracingHeaders$ --kubeconfig $KUBECONFIG
 ```
+
+## Running Broker conformance tests against an existing broker
+
+When developing a new broker, or testings against a preexisting broker setup you
+can specify:
+
+```shell
+go test -v -tags e2e knative.dev/eventing/test/conformance -brokername=foo -brokernamespace=bar -run TestBrokerV1Beta1DataPlaneIngress
+
+```
diff --git a/test/conformance/broker_data_plane_test.go b/test/conformance/broker_data_plane_test.go
index 83d15c1a2b3..a0e3c3a07a1 100644
--- a/test/conformance/broker_data_plane_test.go
+++ b/test/conformance/broker_data_plane_test.go
@@ -26,14 +26,14 @@ import (
 )
 
 func TestBrokerV1Beta1DataPlaneIngress(t *testing.T) {
-	client := testlib.Setup(t, true, testlib.SetupClientOptionNoop)
+	client := testlib.Setup(t, true, helpers.BrokerDataPlaneNamespaceSetupOption(brokerNamespace))
 	defer testlib.TearDown(client)
 
 	broker := helpers.BrokerDataPlaneSetupHelper(client, brokerName, brokerNamespace, brokerClass)
 	helpers.BrokerV1Beta1IngressDataPlaneTestHelper(t, client, broker)
 }
 func TestBrokerV1Beta1DataPlaneConsumer(t *testing.T) {
-	client := testlib.Setup(t, true, testlib.SetupClientOptionNoop)
+	client := testlib.Setup(t, true, helpers.BrokerDataPlaneNamespaceSetupOption(brokerNamespace))
 	defer testlib.TearDown(client)
 
 	broker := helpers.BrokerDataPlaneSetupHelper(client, brokerName, brokerNamespace, brokerClass)
diff --git a/test/conformance/helpers/broker_data_plane_test_helper.go b/test/conformance/helpers/broker_data_plane_test_helper.go
index ad5dfd4728c..ac48ca3b1ba 100644
--- a/test/conformance/helpers/broker_data_plane_test_helper.go
+++ b/test/conformance/helpers/broker_data_plane_test_helper.go
@@ -53,6 +53,15 @@ func BrokerDataPlaneSetupHelper(client *testlib.Client, brokerName, brokerNamesp
 	return broker
 }
 
+func BrokerDataPlaneNamespaceSetupOption(namespace string) testlib.SetupClientOption {
+	return func(client *testlib.Client) {
+		if namespace != "" {
+			client.Kube.Kube.CoreV1().Namespaces().Delete(client.Namespace, nil)
+			client.Namespace = namespace
+		}
+	}
+}
+
 //At ingress
 //Supports CE 0.3 or CE 1.0 via HTTP
 //Supports structured or Binary mode