You must have quite a wide frontage to build this design so I would suggest the facades and garage door to have a striking contemporary colour to really stand out. I don't think it would look too busy at all because of the wide frontage you must have on your block of land. My only suggestion would be to work with your architect to change the facades a little more to differentiate the two. In my experience, the value of duplexes where the facades are differentiated to make it looks more like two homes increases. Also out of curiosity how many bedrooms has the architect included in the design?

The vertical blinds MUST go. Sorry, but they are hideous and add nothing. Get some fabulous mid century fabric pattern in some gorgeous colours and make curtains. You can make a couple of scatter cushions also out of this fabric. Then pick out your favourite colour from the fabric to add some plain cushions. If you have gone with the patterned rug option such as asquithoatley has suggested, then just pick out the gentler colour for plain curtains to compliment the rug. Either way then choose cushions using any, or all of these colours. Then you should look for some decorative items in these colours such as beautiful bottles that might pick up an aqua, or some lamps with bases that colour to put on a side board. For the wall I suggest that you look on ebay in mid century modern and see if any wall sculptures attract you. There was quite a fad for enamelled metal wall sculptures back in the 60s which would add some life. Try to find one that also incorporates one of the pattern colours. Susan_66 made a great suggestion with a Howard Arkley print of a mid century house. You might even find one that is similar to your house style which would be fun. Happy hunting. You have some good pieces and they will work well with a bit of fun fabric or rug to link them.

When you render the bricks I would consider leaving some of them exposed here and there - that reminds me of old Tuscan buildings! I would include some large terracotta pots with olive trees or lemon trees, also as others have suggested some brightly coloured geraniums in hanging baskets against the wall or in terra cotta pots. Here are a couple of shots of my back deck (which isn't looking its absolute best) but to give you an idea of the large pots and colour. You have a beautiful spot to work with good luck! Sue

I'm quite happy for my home to have 'wow' factor if it's me thinking 'wow, I love that!'. If 'wow factor' is wanting others to be 'wowed' when they walk through your door then you're probably getting caught up in the wrong factor. What we go 'wow' about in our own homes is likely to vary from person to person - for me, its about the beautiful natural light in my home, for someone else it might be the pebble shower recess they laid by hand, or their garden in spring. There are probably also home features which tend to generate approval across the board, things like soaring ceilings or bespoke features, a beautiful fireplace or amazing view come to mind here.