diff --git a/app.rb b/app.rb
index 07204491..bbed199e 100644
--- a/app.rb
+++ b/app.rb
@@ -119,6 +119,12 @@ end
 
 post '/settings/create_child' do
   require_login
+
+  if !current_site.plan_feature(:unlimited_site_creation)
+    flash[:error] = 'Cannot create a new site with your current plan, please become a supporter.'
+    redirect '/settings#sites'
+  end
+
   site = Site.new
 
   site.parent_site_id = parent_site.id
diff --git a/models/site.rb b/models/site.rb
index fab067dc..43382e1f 100644
--- a/models/site.rb
+++ b/models/site.rb
@@ -920,9 +920,9 @@ class Site < Sequel::Model
   end
 
   def plan_type
-    return 'free' if values[:plan_type].nil?
-    return 'supporter' if values[:plan_type].match /^plan_/
-    values[:plan_type]
+    return 'free' if owner.values[:plan_type].nil?
+    return 'supporter' if owner.values[:plan_type].match /^plan_/
+    owner.values[:plan_type]
   end
 
   def latest_events(current_page=1, limit=10)
diff --git a/tests/api_tests.rb b/tests/api_tests.rb
index 16265269..16c8f421 100644
--- a/tests/api_tests.rb
+++ b/tests/api_tests.rb
@@ -251,5 +251,4 @@ end
 
 def res
   JSON.parse last_response.body, symbolize_names: true
-end
-
+end
\ No newline at end of file
diff --git a/views/settings/account/sites.erb b/views/settings/account/sites.erb
index 7345e916..39891aba 100644
--- a/views/settings/account/sites.erb
+++ b/views/settings/account/sites.erb
@@ -18,15 +18,19 @@
 
 <h3>Create New Site</h3>
 
-<p>You can now create new sites that are linked to this account! All of your sites will share the free space you have available.</p>
+<% if current_site.plan_feature(:unlimited_site_creation) %>
+  <p>You can now create new sites that are linked to this account! All of your sites will share the free space you have available.</p>
 
-<form action="/settings/create_child" method="POST">
-  <%== csrf_token_input_html %>
-  
-  <p>Site Name:</p>
-  <input name="username" type="text">
+  <form action="/settings/create_child" method="POST">
+    <%== csrf_token_input_html %>
+    
+    <p>Site Name:</p>
+    <input name="username" type="text">
 
-  <div>
-    <input class="btn-Action" type="submit" value="Create New Site">
-  </div>
-</form>
\ No newline at end of file
+    <div>
+      <input class="btn-Action" type="submit" value="Create New Site">
+    </div>
+  </form>
+<% else %>
+  <p>Multiple site creation is only available for supporter accounts. <a href="/plan">Upgrade now</a>!</p>
+<% end %>
\ No newline at end of file