diff --git a/lib/uk_planning_scraper.rb b/lib/uk_planning_scraper.rb
index d011469..151390a 100644
--- a/lib/uk_planning_scraper.rb
+++ b/lib/uk_planning_scraper.rb
@@ -10,4 +10,7 @@ module UKPlanningScraper
   
   class AuthorityNotFound < StandardError
   end
+  
+  class TooManySearchResults < StandardError
+  end
 end
diff --git a/lib/uk_planning_scraper/idox.rb b/lib/uk_planning_scraper/idox.rb
index f17d291..84760d1 100644
--- a/lib/uk_planning_scraper/idox.rb
+++ b/lib/uk_planning_scraper/idox.rb
@@ -51,6 +51,10 @@ module UKPlanningScraper
       
       page = form.submit
 
+      if page.search('.errors').inner_text.match(/Too many results found/i)
+        raise TooManySearchResults.new("Scrape in smaller chunks. Use shorter date ranges and/or more search parameters.")
+      end
+      
       loop do
         # Parse search results
         items = page.search('li.searchresult')