You will NOT find any example of FTTC or FTTP builds from BDUK projects, because none of them have delivered a connection yet. The first have just awarded the contract, but state aid approval from EU is delaying actual work.
Cornwall which is NOT BDUK, but independent, is doing things like adding cabinets for exchange only lines, and also deploying FTTP into the mix.
At 1200 to 1500m you should still manage a good 15 Mbps from FTTC, which is a LOT better than you get from ADSL2+ at 4 to 5km.
BDUK projects are NOT about 100% of people getting a connection of 24 Mbps or faster either. In fact the project setup does not specify whether the >24Mbps is headline, or actual experienced speed.