an old house in an area that you want to live in while you do all the work of a very carefully planned renovation staged to minimise big loans will add value only if everyone who lives with you can either contribute financially or physically and has the time and energy to at least make dinner while you paint. Building new is much cheaper than renovating but old places are often in better locations. Provided the old place is liveable you can save rent while you save for the next stage of the reno but there'll always be unexpected costs of both time and money eg for our latest reno: about $4000 to remove asbestos from an old laundry and bathroom, $8000 to remove trees, weeks of back breaking labour to remove old plasterboards and carpet, ripping thousands of nails from timber floors to discover the boards were beyond restoration, collecting rubbish and rubble from demolished brick walls and loading at least 20 loads into the ute and driving to the tip and paying to unload it ....but the old stove, doors and windows sold on Gumtree and Ebay and redundant electrical wiring and metal taken to the scrap dealer paid for quite a few take away dinners and didn't we have fun together?

I wonder how much time you might have to spend cleaning the roof behind the parapet, perhaps the rain will take care of that, leaves?. If you were going to use these spaces as terrace you would need to adjust the height of the parapet or add a railing, if not the height of the parapet could be reduced

love the idea of rammed earth but would use it like reverse brick veneer clad with insulated steel siding

When you are building a deck, it’s critical to look at the materials that can be used for a deck subframe. This ensures that you have a stable base that you can depend on to be structurally sound and last for many years. There are a few different options, so understanding the pros and cons allows you to make a more informed decision. Find out more