Climbing Hydrangea is a great idea - but for the north facing side of the house as it's too big for round the door. I really like them, although when I tried to grow one before in sunny Norfolk I killed it dead. I was only 15 at the time
Forsythia is too bushy for the site, but I do have a couple in other places in the garden.
I could try a ceanothus if you think it might survive - there's a little spot around the corner from the front door which is sheltered from the howling easterlies and northerlies, although there are weird swirling air currents in that bit.
So that's 2 other bits sorted, still the front door bit to go. I forgot to mention it's south facing, but exposed to the easterlies.
There's not room for a wisteria unfortunately. One of my DiLs grows one, and a ceanothus, on the east coast at Dunbar, in one of the most sheltered gardens in Scotland and she has great success with them - although she accidentally planted a white wisteria instead of a blue, so after several years of waiting, she was seriously disappointed
I expect it will end up being roses and clematis growing through eachother. It's worked well in other parts of the walls, where I also have loads of honeysuckle, which smells gorgeous.
Any hints for clematis and roses combinations which look good together against stonework?