I always tell my couples to allow 1 hour so for you I would say you will be outside with the bells ringing at 4pm. The service is usually 40min but you can easily be 5-10 mins late (without even trying to be late) so that is 50mins - then you have to allow time for people to actually come out of the church and they all will want to congratulate you.
If you are not having much in the way of photos at the Church except maybe a couple of you and a confetti shot then realistically you will be leaving much before 4.30.
You could speed things up by being on time and forgoing a little congratulating BUT you could find yourself leaving and the bells will be playing to no one there.
So at 4.30 then add on travel time to the venue. Then usually the photos will be at the venue whilst drinks are had. So the venue should expect you to arrive between 4.30 and 5 but would not be the wedding breakfast time.