Redirect to permalink clicked

Hello,
For navigation in my site is need create a user in page xxxx.com/login
When he make de cadastre, is redirect to my homepage.

I want when is make the cadastre, the user need go to a permalink of link that have clicked.

If the user clicked in a building, he make redirect to single page of this building.

Now, my code is:

else{ wp_redirect(home_url()); exit;}

How make this?

Thanks