diff --git a/CHANGELOG.md b/CHANGELOG.md
index a734da9..2c344e4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.0.27] - 2026-07-02
+
+### Added
+
+- `SubnetSpec` model and `subnets` optional field to `ClusterPlatform` (HYPERFLEET-1202)
+
 ## [1.0.24] - 2026-06-22
 
 ### Fixed
@@ -91,7 +97,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `hyperfleet` npm dependency for importing shared models and services from the core repository
 
 <!-- Links -->
-[Unreleased]: https://github.com/openshift-hyperfleet/hyperfleet-api-spec-template/compare/v1.0.24...HEAD
+[Unreleased]: https://github.com/openshift-hyperfleet/hyperfleet-api-spec-template/compare/v1.0.27...HEAD
+[1.0.27]: https://github.com/openshift-hyperfleet/hyperfleet-api-spec-template/compare/v1.0.24...v1.0.27
 [1.0.24]: https://github.com/openshift-hyperfleet/hyperfleet-api-spec-template/compare/v1.0.23...v1.0.24
 [1.0.23]: https://github.com/openshift-hyperfleet/hyperfleet-api-spec-template/compare/v1.0.22...v1.0.23
 [1.0.22]: https://github.com/openshift-hyperfleet/hyperfleet-api-spec-template/compare/v1.0.21...v1.0.22
diff --git a/OWNERS b/OWNERS
index 6f21108..afaffae 100644
--- a/OWNERS
+++ b/OWNERS
@@ -8,6 +8,7 @@ approvers:
 - pnguyen44
 - rafabene
 - rh-amarin
+- Ruclo
 - tirthct
 - vkareh
 - kuudori
@@ -26,6 +27,7 @@ reviewers:
 - pnguyen44
 - rafabene
 - rh-amarin
+- Ruclo
 - tirthct
 - vkareh
 - kuudori
diff --git a/main.tsp b/main.tsp
index 151ab70..b27feae 100644
--- a/main.tsp
+++ b/main.tsp
@@ -33,7 +33,7 @@ using OpenAPI;
  */
 @service(#{ title: "HyperFleet API" })
 @info(#{
-  version: "1.0.26",
+  version: "1.0.27",
   contact: #{
     name: "HyperFleet Team",
     url: "https://github.com/openshift-hyperfleet",
diff --git a/models/cluster/model.tsp b/models/cluster/model.tsp
index 3c2d038..5810c62 100644
--- a/models/cluster/model.tsp
+++ b/models/cluster/model.tsp
@@ -11,12 +11,20 @@ model ClusterPlatformSpec {
     template: ClusterPlatform;
 }
 
+model SubnetSpec {
+    id: string;
+    name: string;
+    cidr: string;
+    role: string;
+}
+
 model ClusterPlatform {
     projectID?: string;
     region?: string;
     zone?: string;
     network?: string;
     subnet?: string;
+    subnets?: SubnetSpec[];
 }
 
 model ReleaseSpec {
diff --git a/schemas/template/openapi.yaml b/schemas/template/openapi.yaml
index 46cb155..8d20f04 100644
--- a/schemas/template/openapi.yaml
+++ b/schemas/template/openapi.yaml
@@ -1,7 +1,7 @@
 openapi: 3.0.0
 info:
   title: HyperFleet API
-  version: 1.0.26
+  version: 1.0.27
   contact:
     name: HyperFleet Team
     url: https://github.com/openshift-hyperfleet
@@ -1881,6 +1881,10 @@ components:
           type: string
         subnet:
           type: string
+        subnets:
+          type: array
+          items:
+            $ref: '#/components/schemas/SubnetSpec'
     ClusterPlatformSpec:
       type: object
       required:
@@ -2523,6 +2527,22 @@ components:
       description: |-
         Aggregated status of the resource, populated by the status aggregation
         pipeline from adapter condition reports.
+    SubnetSpec:
+      type: object
+      required:
+        - id
+        - name
+        - cidr
+        - role
+      properties:
+        id:
+          type: string
+        name:
+          type: string
+        cidr:
+          type: string
+        role:
+          type: string
     TaintSpec:
       type: object
       required:
diff --git a/schemas/template/swagger.yaml b/schemas/template/swagger.yaml
index 3feebdf..0a5ebdf 100644
--- a/schemas/template/swagger.yaml
+++ b/schemas/template/swagger.yaml
@@ -17,7 +17,7 @@ info:
     name: Apache 2.0
     url: 'https://www.apache.org/licenses/LICENSE-2.0'
   title: HyperFleet API
-  version: 1.0.26
+  version: 1.0.27
 host: hyperfleet.redhat.com
 basePath: /
 schemes:
@@ -1902,6 +1902,10 @@ definitions:
         type: string
       subnet:
         type: string
+      subnets:
+        items:
+          $ref: '#/definitions/SubnetSpec'
+        type: array
       zone:
         type: string
     type: object
@@ -2590,6 +2594,22 @@ definitions:
     required:
       - conditions
     type: object
+  SubnetSpec:
+    properties:
+      cidr:
+        type: string
+      id:
+        type: string
+      name:
+        type: string
+      role:
+        type: string
+    required:
+      - id
+      - name
+      - cidr
+      - role
+    type: object
   TaintSpec:
     properties:
       effect: