My Famaval 1.3 dish in Garrucha Vera area gets all bbc itv channel 4/5 plus most freesat channels and 10 movie channels including Film 4 all as featured on the freesat channel list.
Bbc and itv gets a varying signal quality strength between 39% and 49% depending on weather etc
Other freesat channels show a signal quality strength up to 80% - Blaze for example.
Ignore negative comments 1.3m wont work!
You need careful computerized alignment. Manual set up is not accurate enough. Even tightening the bolts can cause loss of signal.
Larger is better but most urbanizations usually have such restrictions on large dishes.
A professional satellite installer is needed, persevere with your existing dish it will work with the correct type of lnb.
Your installer will advise if you need an upgrade of lnb.