oh, and in the back garden we have a couple of greenies, a couple of lowish (2-3ft) bux and a tall (6ft) hedgy tree (don't know the name, one with white and green leaves). if we take them from the back to the front, might that work?
Don't overlook that a hedge of sufficient height to stop people looking in will also create shade and will make it much darker indoors.
I have put up window film on our downstairs windows at the front and gone for planting that does not exceed 4 or 5 ft height. It gives us privacy but does not make the house too dark inside. Hedges will take at least 3 or 4 years to grow to screening height but you can buy larger specimens from a specialist and although much more costly than say bare root planted hedging plants, they would give you the immediate screen.
Climbing hydrangea does not need a fence or trellis to support.
Sorry a bit late to this thread - so you may of planted already!! we bought some large mature Laurels form a company called hedgesonline - spoke to a lovely chap called bob, and this way they are very large when going in so create a perfect screen from day one - maybe worth a try if you've not already??
We have mixed hedges. All sorts in them, laurel, hawthorn, beech, conifers, roses, berberis, pyracantha, holly, sycamore, clematis growing up through all of them. Attracts loads of wildlife & all year interest, clip it twice a year when the birds are not nesting.