Point To Point Wireless
Cost effective communications extending networks to a remote buildings from 20m to 10km.

If there is a situation where another building would benefit from being connected to the network for internet access or perhaps to connect CCTV cameras on a remote building back to another site then there are several options.
Cabled connection whether this is copper or fibre, the question is how will this be installed, overhead, this may be acceptable for a short distance but not practical at longer distances. Underground, this is the ideal if a duct exists, if no duct available then to dig up and install involves many obstacles, including access, land ownership, and wayleaves to name a few.
Commissioning another internet connection at the remote site, this may or may not be possible if wired telecoms services are not available, wireless broadband offerings including 4G, 5G or satelite may be an option.
Point to Point Wifi, just think of this as a section of data cable providing a communication link between two or more locations but without the wire, providing line of sight is available. Basically an antenna can be fitted on each of the connecting buildings / locations providing a data path for the equipment, CCTV, printer, laptop to communicate communicate with the network at the other building whether this is an office, or house.
The key benefits of PTP or PTMP include quick to deploy, 1GB connections, reliable, cost effective no monthly costs.