While you are saving up for a whole house paint job - 1. Work out the exterior colour-scheme. 2. Paint the pickets around the base is the house, yourselves, if possible. I agree that it should be a dark colour, that works with your chosen final scheme. 3. Prepare garden beds along the front, choose appropriate shrub species and plant ASAP, with possibly something taller sweeping up to the left (of the photo) to break the strong horizontal "box" look. If you decide to change the stairs at some stage, you may have to remove a plant or two, but at least there will be an inviting entrance growing happily in the meantime. Have fun :)

Bit of a circle thing, the engineer will have trouble commenting on what you plan to do without drawings of the existing and proposed. Never met an engineer who could not work their magic on any structure, but there will be simple and cheaper methods and then there can be some super expensive ones. Builders and engineers should be communicating as well. If i were you, i would have identified a builder, get a good architect to work with you, your budget, the builder and engineer, and town planner if this requires DA approval. Overshadowing is the shadow your structure casts on the neighbors property. Overlooking is when they can see into your property, some councils have means to prevent this and the last to build normally has to screen their windows to prevent overlooking, some require only high windows, not all councils and not all property sizes will be affected. If the architect draws in a 3D package it is a simple matter to show you where the shadows land at any time and day of the year, based on you address. If allowed to build that top story, they can show you if you shade your pool. This is a big investment from you, most likely you would be living with the results for years, i would imagine that you would want the best outcome for your family, and to engage professionals would be the way to achieve those outcomes. Thoughts and ideas from forums like this are great, but sometimes they are not aware of the outcomes of comments which might affect your whole project, and councils around the country all have different requirements. Check and check again. What is allowed in Brisbane with height and upper floor window sizes on smaller blocks, will not be allowed in Melbourne, or Sydney councils. Shadowing while really not an issue in Brisbane, will be a huge issue in Melbourne, so get a local team. Ros

I would start with making a decision on the carport first. Start by talking to the council as you may not be able to do a double carport (and the single carport at your neighbours looks like a tight squeeze!) Also as Missmel said you should probably also make a decision whether to paint or not early on. If you are going to go with carport, paint, new awning and possibly porch windows you are getting into a whole new look so I would start talking a professional about the best way to design it. As an alternative to the porch enclosure could you get the front windows double glazed to reduce noise? If it was my place I think I would only be changing the awning, paint the fences, landscape, and maybe do a single carport if its really needed (plus the tiling etc that you mentioned). Some new fretwork might be nice too. To me the main thing to change is the bullnose, as you said its not original and it looks heavy and dominating. You will have to post some pics when done I will be really interested to see how this all turns out.

if the original asbestos walls are in good condition then they can re-be painted but if the walls are too damaged to be saved the asbestos needs to be removed by professionals and the cladding replaced, no reason you can't have different profiles on the front and sides as long as joints and corners are sealed properly but if you plan to install new windows it could be better to wait to repair sections of wall as the windows are replaced (i'd prefer to have all the roof and external walls in good condition and then do the internal work at leisure)... .modern fibrous cements are excellent ...we've just used flat fibrous cement with curved battens over joints and very happy with the results for our 50's house (there are several different brands available through the big hardware stores and research on line is much easier than trying to work out the variations in store) the gabled portico can be made as a separate structure or as a extension to the roof with valley gutters depending on placement of the solar panels (and/or solar panels can be moved)