Thanks all for the suggestions! White ceiling really makes sense thanks Helen. I would not have thought to do that but as i sat out there over the weekend it makes perfect sense. At this stage I'll stick to repainting the deck as well due to the cost but long term I'll definitely be looking at sanding or replacing the timbers of the deck. With all the dark colours it really does have an oppressive feeling and i almost feel like i need to hunch over as i walk through so lightening up the colour scheme is definitely the way to go. And yes Angela those blind will be going :)

Live in Seven Hills NSW. Budget is about $6K to $7K

well done to your husband for such a detailed plan... i suggest that you focus on the clothesline level by removing or demolishing the pond or simply filling with rubble and soil to make a raised garden or seat, long term plan to level the area shown as "stones" to make a fenced lawn with access from the deck but any change in level of more than 1m needs a fence so you should fence off the garden with gates across the steps on both sides...a treated pine log fence with chicken wire mesh to prevent any footholds for climbing would probably be the cheapest and consider enclosing a space under the deck over the raised floor to create a storage area for the ladder, gas bottles, mower etc...the walls could come out as far as the round steel post (if it can't be removed safely) and broken bricks could fill in the pond, try moving the clothesline over to the pond lawn to make a more open lawned area on the other side and paint everything except the house brick walls with a very dark paint to tone with the bricks.. consult the local nursery for suitable shrubs to screen the neighbours and unless you're a keen gardener convert all the small gardens beds into lawn or paving

How wide is the garden bed? 4-5m tall and very narrow is difficult to find. You need to think about things like do you need so much lawn, how much wider could you make the garden bed, how much time will you allow for maintenance to keep the screening plants pruned? Just to be clear, do your back windows face north? You don't want anything that blocks the sun in winter. Although come to think of it I don't see any windows, just an alfresco? Builders really don't understand orientation. What do you mean by pine trees? Maybe you are thinking of pencil pines?