A. Put up the £1,000 per property for OR to install a cabinet at the end of the road. You will get FTTC speeds varying from 25 to 80 Mbps depending on distance from the cabinet at an annual cost of £400-500 for phone line, broadband, etc and with a choice of ISP.
B. Put in a 100 Mbps leased line to the property with the best all-round view. Install a wireless repeater on that property (the term "mast" is standard in the wireless business) plus receivers on each house - use 5 GHz AC equipment. A single contract to buy & install the wireless equipment for the repeater and 25 properties should not cost more than £8,000 incl VAT. The leased line will probably involve some installation costs but probably less than £4,000 incl VAT. After that you will have to pay the annual lease fee - market dependent but £7,500 per year incl VAT is a rough guess for a 3 year contract - i.e. £300 per year per property. With this set up everyone could replace their phone line with a VoIP line at £30 per year. For 25 users with a 100 Mbps line you will get a much better user experience with symmetric speeds most of the time. The most recent generation of Ubiquiti or Mimosa equipment will give you 50+ Mbps speeds over wireless without any difficulty at the costs that I have quoted. On the other hand, you will experience peak period congestion if everyone tries to get HD streams at the same time.
Overall, Option B has about half the installation cost of Option A and perhaps 2/3rds of the annual cost. On the other hand, you don't get a choice of ISP and you have to take more responsibility for installing and managing the system. It is a familiar choice between money, convenience and performance.
Edited by gah789 (Mon 04-Apr-16 12:14:32)