Recently, SVN has been installed on a local Debian box at work. This could have been done a bit earlier in my opinion, but well it’s better be a little late than never.
The SVN server is accessed via a LAN ip: 192.168.0.126. Because we didn’t setup static IP on the router, the IP of the server keeps changing from time to time. Here’s how one can change or relocate to the new URL.
With command line, just type:
svn switch --relocate OLD_URL NEW_URL
Using Tortoise SVN on Windows:
Kenno's openNOTE 
thanks a lot i was trying to relocate one and your post come just in time in the google results 😀
No problem. I actually had this post so that my workmates could refer to it when needed too.
Thanks – just what I needed.
Thank you so much, It is solved my requirement.
Thank you. This helped me allot.
Thx, same as above:)