diff --git a/src/server/plugins/engine/components/OsGridRefField.ts b/src/server/plugins/engine/components/OsGridRefField.ts
index 607121214..408cdd010 100644
--- a/src/server/plugins/engine/components/OsGridRefField.ts
+++ b/src/server/plugins/engine/components/OsGridRefField.ts
@@ -2,7 +2,9 @@ import { type OsGridRefFieldComponent } from '@defra/forms-model'
 
 import { EN_GB } from '~/src/server/constants.js'
 import { LocationFieldBase } from '~/src/server/plugins/engine/components/LocationFieldBase.js'
+import { getMapLayers } from '~/src/server/plugins/engine/components/LocationFieldHelpers.js'
 import { createLowerFirstExpression } from '~/src/server/plugins/engine/components/helpers/index.js'
+import { type RenderContext } from '~/src/server/plugins/engine/components/types.js'
 import { t } from '~/src/server/plugins/engine/i18n/index.js'
 import { type Translator } from '~/src/server/plugins/engine/types/index.js'
 import { type ErrorMessageTemplateList } from '~/src/server/plugins/engine/types.js'
@@ -10,6 +12,17 @@ import { type ErrorMessageTemplateList } from '~/src/server/plugins/engine/types
 export class OsGridRefField extends LocationFieldBase {
   declare options: OsGridRefFieldComponent['options']
 
+  getViewModel(context: RenderContext) {
+    const viewModel = super.getViewModel(context)
+
+    Object.assign(viewModel, {
+      lang: context.translator.language,
+      mapLayers: getMapLayers(this)
+    })
+
+    return viewModel
+  }
+
   protected getValidationConfig(translator: Translator | undefined) {
     // Regex for OS national grid references (NGR)
     // Validates specific valid OS grid letter combinations with:
diff --git a/src/server/plugins/engine/views/components/osgridreffield.html b/src/server/plugins/engine/views/components/osgridreffield.html
index 70a84f7ee..c83245773 100644
--- a/src/server/plugins/engine/views/components/osgridreffield.html
+++ b/src/server/plugins/engine/views/components/osgridreffield.html
@@ -5,7 +5,8 @@
   {% set hasErrors = component.model.errorMessage %}
   <div class="govuk-form-group app-location-field {{ "govuk-form-group--error" if hasErrors }}"
     data-locationtype="{{component.type | lower}}"
-    data-lang="{{component.model.lang}}">
+    data-lang="{{component.model.lang}}"
+    data-maplayers="{{component.model.mapLayers}}">
     <div class="app-location-field-inputs">
       {{ TextField(component) }}
     </div>