Yeah, that would be a lot of lines to add manuall., I would try the htaccess Rewrite function.
<ifmodule mod_rewrite.c="">RewriteEngine On
RewriteBase /RewriteRule ^(.)urban-living(.)$ yoursite.com/$1urban$2 [R=301,L]</ifmodule>
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-dRewriteRule ^(.*)$ index.php?/$1 [L]
RewriteCond %{HTTP_HOST} !^www.yoursite.com$ [NC]
RewriteRule ^(.*)$ yoursite.com//$1 [L,R=301]
I'm not an htaccess expert, so I'm not 100% sure that it will work, if not you can check out this stack overflow thread for an explanation of the code used above.