The façade cost will depend upon the materials you pick and site specs (sloping blocks are a bit more challenging) and labour costs ( just make sure that you check your trades licenses, insurances and references for everyone who works on your house) - once you're structurally sound then the rest is straight forward (it's also been my experience with my builders - who are awesome - that they can come up with some amazing ideas that are cost effective and have a real wow factor). If it were me I'd ask around the neighbourhood for builders that can be recommended - they should be able to do it all at the same time and save you some money. On the materials - I'd be tempted to go with natural timber that will weather naturally without needing maintenance - personally I'd lean towards a Japanese technique of charring the timber so that you don't need to do a lot of upkeep - called Shou-sugi-ban - the reason being that the dark colour will tone in with your window frames.

Hi Deb, If this place were mine I would be going for a timeless Australian look to blend with your native and European plant choices that's durable for our climate. I would start with a portico built over the entry in hardwood with a colour bond pitched lined roof trim all the wood in white. Clad the walls with Hardies weather boards or flat planks, building a wide timber trim around the downstairs window to create a feature. I'd go with charcoal walls to compliment the white trim classic colours that will endure time. I'd clad the retaining walls all with a stacker stone tile that resembles old English mortar less stone walls. Some outdoor lights by Barnlighting Autralia are classics. If you want a cheap alternative creeper over the bricks, be aware that all vines will erode the mortar and attract spiders, yet my favourite creeper for this application would be "ficus pemula" it sits really flat and can be trained as a solid wall. Perfect for privacy. You could pave the entry path with "Millboards" wharf style boards so it looks like a beach path, they will never rot or need maintenance, otherwise you can use concrete moulded timber look planks. Some flax grasses to add to the coastal look. As for this upstairs Windows, what was the building designer thinking?.. There's a couple of choices, you can create one way visibility with white shutters inside or out, line the glass with sunblock film or have some exterior screens fitted outside with laser cuts screens, timber etc or replace the windows and create a more balanced frontal feature with higher rectangular windows. This cladding can take to a contemporary look, coastal look, bush style etc. the best feature of this cladding is the additional insulation and uniformity. Have fun

Yes you are right, oskuee, the cost of this renovation was commensurate with its location in a prestige suburb of Sydney. Having said that, the budget was not limitless, so we chose to retain and enhance the bones and style of the original house by making 'simple' changes, rather than reinventing the whole house's look & layout, which would require more extensive and costly changes. This is how I usually approach renovations, to get the most out of the client's budget, no matter what the size or cost of the project is.

With a North facing house the sun makes the front of house quite hot but only on those few days a year when it is over 40 with no sea breeze and I love the heat so ceiling fans work for me. The back of the house is much cooler and the winds generally come from the ocean side but can be from all directions at times as we know. On the west side of the house it is only app 1m to the fence line and so the option of having the garage on that side isn't viable. Sorry I am not up on terminology so when I said the set back was 7 odd metres that is the current set back from the front of my house to the road. The council requires 3m for house and 4.5 for garages. I have been looking more at mid century modern design and I don't really like it so I am looking at ways of changing up the bland facade to disguise the fairly flat roof line. With those in the know could I add a front porch and somehow blend the roof line into my current one to look more like this style? I realise it means saving more to afford it so on top of my current budget. I am just not sure how the roof line of the porch would look at the back end (how it would attach to my roof and look from the side and back) I wouldn't want it to look like it was just stuck on at the front. Would I carry that through to back of house so end up with a witches hat roof or is there a better way you can see this working. Once again thank you for all of your input I can't tell you how much I appreciate you taking the time to help me :)