Ok, you've just bought a period, listed house - this is the best piece of advice you are ever going to get.
Go on the SPAB weekend homeowners course. Do not buy anything until you've been on it.
You'll save an absolute fortune by doing this, and save a whole lot of stress. Seriously.
Vonsudenfed is saying that you don't need to worry about buying breathable paint because the plaster will be modern and so not breathable, and the brick under it doens't need to breathe anyway. Thus you can slap anything on.
I don't know about C18 brick built buildings, but you can check on the SPAB website, or on www.periodproperty.co.uk. However, if you do have some lime plaster (which I do in my house), you may well need to keep it breathable, and that means using breathable paints like Earthborn's clay paint. We have some unimpressive damp patches in our house (but this is Stuart, so quite a bit older) caused by using the wrong paint.
Now, if anyone would like to buy the large pot of F&B 'Blue Ground' paint that I bought before going on the SPAB course, I'm open to offers. The tin is dented but it's totally unused. Gorgeous colour :-)