diff --git a/api/v1alpha1/docs/apiref.adoc b/api/v1alpha1/docs/apiref.adoc
index b47eeb1b..6dbfe20f 100644
--- a/api/v1alpha1/docs/apiref.adoc
+++ b/api/v1alpha1/docs/apiref.adoc
@@ -1893,6 +1893,7 @@ TierTemplate creation.
 .Appears In:
 ****
 - xref:{anchor_prefix}-github-com-codeready-toolchain-api-api-v1alpha1-nstemplatetierspec[$$NSTemplateTierSpec$$]
+- xref:{anchor_prefix}-github-com-codeready-toolchain-api-api-v1alpha1-tiertemplaterevisionspec[$$TierTemplateRevisionSpec$$]
 ****
 
 [cols="20a,50a,15a,15a", options="header"]
@@ -3207,6 +3208,7 @@ TierTemplateRevisionSpec defines the desired state of TierTemplateRevision
 | Field | Description | Default | Validation
 | *`templateObjects`* __link:https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.27/#rawextension-runtime-pkg[$$RawExtension$$] array__ | TemplateObjects contains list of Unstructured Objects that can be parsed at runtime and will be applied as part of the tier provisioning. +
 The template parameters values will be defined in the NSTemplateTier CRD. + |  | 
+| *`parameters`* __xref:{anchor_prefix}-github-com-codeready-toolchain-api-api-v1alpha1-parameter[$$Parameter$$] array__ | Parameters is an optional array of Parameters which will be used to replace the variables present in the TemplateObjects list when provisioning a Space. + |  | 
 |===
 
 
diff --git a/api/v1alpha1/tiertemplaterevision_types.go b/api/v1alpha1/tiertemplaterevision_types.go
index b490b60d..868d5104 100644
--- a/api/v1alpha1/tiertemplaterevision_types.go
+++ b/api/v1alpha1/tiertemplaterevision_types.go
@@ -29,6 +29,14 @@ type TierTemplateRevisionSpec struct {
 	// +listType=atomic
 	// +kubebuilder:pruning:PreserveUnknownFields
 	TemplateObjects []runtime.RawExtension `json:"templateObjects,omitempty" protobuf:"bytes,3,opt,name=templateObjects"`
+
+	// Parameters is an optional array of Parameters which will be used to replace the variables present in the TemplateObjects list when provisioning a Space.
+	// +optional
+	// +patchMergeKey=name
+	// +patchStrategy=merge
+	// +listType=map
+	// +listMapKey=name
+	Parameters []Parameter `json:"parameters,omitempty" protobuf:"bytes,4,opt,name=parameters" patchStrategy:"merge" patchMergeKey:"name"`
 }
 
 //+kubebuilder:object:root=true
diff --git a/api/v1alpha1/zz_generated.deepcopy.go b/api/v1alpha1/zz_generated.deepcopy.go
index 02a33a55..ffb8d19d 100644
--- a/api/v1alpha1/zz_generated.deepcopy.go
+++ b/api/v1alpha1/zz_generated.deepcopy.go
@@ -3156,6 +3156,11 @@ func (in *TierTemplateRevisionSpec) DeepCopyInto(out *TierTemplateRevisionSpec)
 			(*in)[i].DeepCopyInto(&(*out)[i])
 		}
 	}
+	if in.Parameters != nil {
+		in, out := &in.Parameters, &out.Parameters
+		*out = make([]Parameter, len(*in))
+		copy(*out, *in)
+	}
 }
 
 // DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new TierTemplateRevisionSpec.
diff --git a/api/v1alpha1/zz_generated.openapi.go b/api/v1alpha1/zz_generated.openapi.go
index 36328e21..5441bc23 100644
--- a/api/v1alpha1/zz_generated.openapi.go
+++ b/api/v1alpha1/zz_generated.openapi.go
@@ -4374,11 +4374,35 @@ func schema_codeready_toolchain_api_api_v1alpha1_TierTemplateRevisionSpec(ref co
 							},
 						},
 					},
+					"parameters": {
+						VendorExtensible: spec.VendorExtensible{
+							Extensions: spec.Extensions{
+								"x-kubernetes-list-map-keys": []interface{}{
+									"name",
+								},
+								"x-kubernetes-list-type":       "map",
+								"x-kubernetes-patch-merge-key": "name",
+								"x-kubernetes-patch-strategy":  "merge",
+							},
+						},
+						SchemaProps: spec.SchemaProps{
+							Description: "Parameters is an optional array of Parameters which will be used to replace the variables present in the TemplateObjects list when provisioning a Space.",
+							Type:        []string{"array"},
+							Items: &spec.SchemaOrArray{
+								Schema: &spec.Schema{
+									SchemaProps: spec.SchemaProps{
+										Default: map[string]interface{}{},
+										Ref:     ref("github.com/codeready-toolchain/api/api/v1alpha1.Parameter"),
+									},
+								},
+							},
+						},
+					},
 				},
 			},
 		},
 		Dependencies: []string{
-			"k8s.io/apimachinery/pkg/runtime.RawExtension"},
+			"github.com/codeready-toolchain/api/api/v1alpha1.Parameter", "k8s.io/apimachinery/pkg/runtime.RawExtension"},
 	}
 }