If you have another location that is completely sepparate, as "few blocks away" seems to denote, then you would actually need a new Internet line alltogether. That is, a second purchase from your ISP for that location. High speed is not like dialup where you can just go any place and dial the local number, using your username and password. If you bought high speed and 5 IPs for one location, you'd have to buy another 5 IPs and connect up another account to the other location.
Of course, if the other location doesn't need 5 ISPs, you don't have to buy them.
And then on top of things, once both locations have the Internet connection, you can set up a WAN between the locations. A virtual network, and send traffic where you will.
The last method is, if, per chance, both locations are visible to each other, as in, direct line of site; then you can use a direct wireless between them. Sort of like a point-to-point wireless. And then you wouldn't have to buy two account from the ISP. But if the locations are far apart and not line-of-site, you have to buy another Internet connection with its own IPs.
Good luck!