I agree with above – planning in this country has no consistency applied to it. Without more detail about the surrounding area it is hard to judge what impact the OP’s example has but we have bitter experience of crooked developers. We bought a flat in a converted mill having seen the plans for the development – all character materials, facilities, bridge over the canal, footpath into the village blah blah.
Developer ignored everything, built as cheaply as he could and failed to finish all the facilities. He’d already sold the flats by then so couldn’t give a toss. As the building was listed, the council then took the position that to change all the faults would be the responsibility of the council and residents! That’s one thing but then he applies for more consents in the same village and gets them! System is run by amateurs.