Thank you so much for your kind words, everyone. Houzz never ceases to delight, I am so glad I began this renovation even though it was an incredibly stressful journey at the time!! Here are a few more pics taken over the last 2 years.

Well I know you want to be true to the house & reuse what you can but I would probably go with a more modern style like the stainless wire and timber top rail rather than dowels or timber for the infill. Be mindful of building code for the infill as horizontal is climbable and has to be very close together. There is so much upkeep in timber & if you go with the vertical metal rod look with the timber top plate maybe...? I am not an expert on any era or style though I know you will have a preference in mind & I would go with that. Look at the big picture of how your house will look with a change of paint (are you painting the house?) & for me it was about making the 25 year old house more contemporary. We love it!

Im having flashbacks to House Rules last season when they managed to use the side of house very similar to your size and managed to create a four multiple purpose site. Was very impressed with the team from Adelaide. Maybe see if you can pull up a video of that on 7plus for inspiration.

Are you talking about a concrete slab? You need to go to a tile shop and ask to see tiles suitable for outdoor use and with a good slip rating. Then choose the ones you like the look of which meet those criteria.