Yes probably. You'd want to make sure the paint 'sticks on' properly though, wouldn't you.

I'm thinking a nice coffee colour will work well with the colour of the bricks AND vorpal the house 30 years forward into the 2000's. LOL

The idea is then we'd have the money to invest in a nice stained solid timber front door (behind the coffee coloured screen) and also timber venetians - it would look quite nice from the outside without any particular bit/colour standing out too much, kwim?