Use indigenous plants rather than importing 'weeds'. Find out your local native grasses and use those instead. Lomandras are probably one type. Good to hold soil together as they apparently have shallow but strong roots. Adding drainage should also be included as would the hessian types of pervious mattings.

Could you use a window film that will let in light but block the view? I haven't used it personally. Otherwise something else maybe hanging plant outside the window to distract from the Hill hoist etc :)

I really like this building, and I love the railing... I would not change the railing. Is the railing the same thing as balustrade? (sorry I am not familiar with that term.... if it is, I think that I agree that I would do my best to maintain the character of it when I am trying to meet building code requirements). I think that it is reflective of the period that this house was built. I think that some nice landscaping of the property would add to its street appeal. I would love some hedging, and perhaps some flowers. I would remove the white railings that are next to the parking area (I am not speaking about the staircase railing, which I like.) The railings that are next to parking area, and entry into parking area are not very appealing... some hedges here would definitely add to the appeal. I would also remove all of the straggly looking plants and opt for something slightly more formal. The parking garage next to the building is unattractive. I think that this is much less appealing than the apartment building itself. The area definitely needs to be paved and I would explore the costs of improving this area. I think that while people like car spaces, this whole area detracts from the apartment complex which is actually quite nice. Also, is the paved area that is outside the stairs for visitor parking? I think that could be improved as well. If you do not need visitor parking, I would put a grass area here, and possibly a gate or formal hedging at the boundary of the property. I might even add something for tenants to use. Perhaps a bench or picnic table. I am not certain what the horizontal bar is that is between the windows on the upper floor. Can you have something more decorative there? (perhaps the street name 32 Hill Street (or whatever the street number is) ... written out in a decorative font that is in keeping with the time period of the building. I have seen this on some buildings in Sydney, and it actually looks nice. I think that I might change the red color on the end of the stairs. Is the seemingly paved area outside of the stairs a parking area? In one of the pictures I see a set of blue curtains in the upper window. I would replace this with something like a roman blind, so that all window treatments are the same. (I think that it has more appeal from the outside.) Good Luck!

Yes, agree with the above comment. It would be the same if your design consisted of a continuous path. If laid correctly, you should have no problems with maintenance. Hire a qualified tradesperson and you should have no problems. I think the polished concrete stepping stones will look great with your style of home.