And also what happens if the people over the road move / change their minds / go on holiday / turn the box off etc?
You would have to find a VERY accomodating neighbour. Putting in second line (holes in wall?), VDSL modem installed beside new master socket, run cable to suitable site for wireless bridge?
Billing for the line and Broadband could be interesting!
But could be done. Could cut a deal whereby you and neighbour share a single FTTC connection and share the cost. No new phone line needed then.
Ex <n>ildram , been to SKY MAX - 15,225 Download
Now with BE Unlimited - 21,000 Download 1,200 Upload! Never happier!