diff --git a/templates/repo/create.tmpl b/templates/repo/create.tmpl
index 2e1de244ea..07d581b2e8 100644
--- a/templates/repo/create.tmpl
+++ b/templates/repo/create.tmpl
@@ -10,12 +10,7 @@
 				<div class="ui attached segment">
 					{{template "base/alert" .}}
 					{{template "repo/create_helper" .}}
-
-					{{if not .CanCreateRepo}}
-						<div class="ui negative message">
-							<p>{{ctx.Locale.TrN .MaxCreationLimit "repo.form.reach_limit_of_creation_1" "repo.form.reach_limit_of_creation_n" .MaxCreationLimit}}</p>
-						</div>
-					{{end}}
+					<div id="create-repo-error-message" class="ui negative message tw-text-center tw-hidden"></div>
 					<div class="inline required field {{if .Err_Owner}}error{{end}}">
 						<label>{{ctx.Locale.Tr "repo.owner"}}</label>
 						<div class="ui selection owner dropdown">
@@ -26,7 +21,11 @@
 							</span>
 							{{svg "octicon-triangle-down" 14 "dropdown icon"}}
 							<div class="menu">
-								<div class="item truncated-item-container" data-value="{{.SignedUser.ID}}" title="{{.SignedUser.Name}}">
+								<div class="item truncated-item-container" data-value="{{.SignedUser.ID}}" title="{{.SignedUser.Name}}"
+								{{if not .CanCreateRepo}}
+									data-create-repo-disallowed-prompt="{{ctx.Locale.TrN .MaxCreationLimit "repo.form.reach_limit_of_creation_1" "repo.form.reach_limit_of_creation_n" .MaxCreationLimit}}"
+								{{end}}
+								>
 									{{ctx.AvatarUtils.Avatar .SignedUser 28 "mini"}}
 									<span class="truncated-item-name">{{.SignedUser.ShortName 40}}</span>
 								</div>
@@ -209,7 +208,7 @@
 					<br>
 					<div class="inline field">
 						<label></label>
-						<button class="ui primary button{{if not .CanCreateRepo}} disabled{{end}}">
+						<button class="ui primary button">
 							{{ctx.Locale.Tr "repo.create_repo"}}
 						</button>
 					</div>
diff --git a/web_src/js/features/repo-template.ts b/web_src/js/features/repo-template.ts
index fbd7b656ed..0a689e803f 100644
--- a/web_src/js/features/repo-template.ts
+++ b/web_src/js/features/repo-template.ts
@@ -1,6 +1,6 @@
 import $ from 'jquery';
 import {htmlEscape} from 'escape-goat';
-import {hideElem, showElem} from '../utils/dom.ts';
+import {hideElem, querySingleVisibleElem, showElem, toggleElem} from '../utils/dom.ts';
 
 const {appSubUrl} = window.config;
 
@@ -21,6 +21,20 @@ export function initRepoTemplateSearch() {
   checkTemplate();
 
   const changeOwner = function () {
+    const elUid = document.querySelector<HTMLInputElement>('#uid');
+    const elForm = elUid.closest('form');
+    const elSubmitButton = querySingleVisibleElem<HTMLInputElement>(elForm, '.ui.primary.button');
+    const elCreateRepoErrorMessage = elForm.querySelector('#create-repo-error-message');
+    const elOwnerItem = document.querySelector(`.ui.selection.owner.dropdown .menu > .item[data-value="${CSS.escape(elUid.value)}"]`);
+    hideElem(elCreateRepoErrorMessage);
+    elSubmitButton.disabled = false;
+    if (elOwnerItem) {
+      elCreateRepoErrorMessage.textContent = elOwnerItem.getAttribute('data-create-repo-disallowed-prompt') ?? '';
+      const hasError = Boolean(elCreateRepoErrorMessage.textContent);
+      toggleElem(elCreateRepoErrorMessage, hasError);
+      elSubmitButton.disabled = hasError;
+    }
+
     $('#repo_template_search')
       .dropdown({
         apiSettings: {