Hi arcmaz Great house - fantastic 60's modern look - Harry Sidler (Modernist Architect 1923-2006 exponent of the Bauhaus style in Australia, mainly Sydney) would have loved the interpretation, its a good style, don't change it will pay dividends in the long run. It would be good if there was a plan of the house,and a plan of the block this would allow some relatively accurate planning proposals. If you had the real-state plan with the block plan it would help a lot. In terms of making the place bigger and retaining the style I would suggest that the extension (maybe one room and an en suite depending on a budget) be a block in the today's current style, but linked to the existing house via a "link" (Link =small walkway). This would allow you to retain the style, but not be dominated by a past period, I have done this a few times and it has worked fairly well. If you are looking for three bedrooms it might be best to add a master bedroom with a bathroom, and then maybe living areas with back yard access. There may be other approaches depending on the current layout that could be considered, but I would retain as much as the original as possible, and only make small cosmetic changes until you are ready for a worthy development. I hope this is of some help, I would be happy to comment further or work on this project. Regards - Michael Manias Manias Associates Building designers - mm407p@gmail.com

thinking about the rumpus and wine cellar my suggestions keep most of the original walls with the cellar built in the garage with no external walls to improve insulation and temp control, uses the old single garage door space for an optional entry porch and has the new bar in the old gym maybe replacing the sliding door with a servery window? and the opening to the rumpus could have optional doors to separate the rumpus and bar and keeping the angled wall (and matching ceiling?) in the rumpus could be a good location for a small heater and there's more wall space for enough furniture for a crowd and i've added some suggestions for the bathroom with a separate powder room with vanity and, based on family gossip, a wine cellar this size should have enough space for about 1500 bottles and a small tasting table and chairs!! avoiding changes to walls and adding new doorways instead keeps the original ceilings, avoids unnecessary demolition, is cheaper and saves money that will be needed for new finishes

my suggestion has an ens and wiw and uses the old bedroom door for a linen cupboard, although the toilet could be placed at either end to be closer to the original sewerage, this arrangement allows for more privacy for the toilet, more standing room near the shower, wall space for a towel rail and room in teh wiw for a chest of drawers..the vanity is over 2m long with cabinet under the (one or twin) sinks and open shelves next to the toilet for towels .. and, while you're adding the new ens, it would be worthwhile to plan the new access to the kitchen and new laundry

Actually, your style isn't really very scandi in my opinion. It's industrial and rustic. I'd match recycled and chunky timbers with the concrete, a timber with rich reds. There is a company near me that makes plywood panels with recycled wood veneer attached. They're too far for you but might give you some ideas for a feature wall. I'd start with a few tins of paint and some colour actually. you'd be surprised what that can do! I'm fixing, well technically my second home but with our first we figured fairly quick it wasn't a forever home and didn't do anything personal with it. So this is our first "home" if not our first house. i getya! I know everyone seems to love white walls, but after years of bland rentals the first thing I wanted to do was paint colours all over the walls! Anything but white! Paint is cheap and a safe place to start testing your design flair. Go and paint a bunch of sample tins onto the walls and don't stress too much about the perfect look. start with what you like and find what suits that. A colour that makes you smile when you see it. I've paid about $10 a sample tin. like others said, don't do anything with the carpets yet, you can throw a rug over it if its too boring and it will look fine. There are so many things that I first thought I needed to completely change, then as I painted and freshened and tidied up I realised were not needed a huge reno. Our house was a bit of a wreck though, not a nice new apartment so things just literally needed cleaning and fixing. Put up some pictures, art, photos you like too. Honestly, I know everyone's being funny about getting a girlfriend and getting her to decorate, but actually I think it's great you've got your own taste and want to decorate. I think anyone you bring home would love seeing more of your personality around the place. Check out some garage sales and buyswap sell and auctions for rustic timber pieces for your home. Maybe a nice pipe and timber bookshelf in the lounge instead of an entertainment unit? https://www.northernriverstimber.com.au/