Obviously more storage is needed...picture is difficult to see what your space looks like..two observations are there is no use of upper wall space..and no decor..( no art..no color..) wall display of your instruments with seating if you wish to use the room for music are a start...

For a room so small, you really need to get smaller items if you want to include your key board and guitars. Take out the large bookcase and get a smaller one. Are all those books necessary? Get a couple of smaller filing boxes that you can slide under the work table. Scan your important doc's and start shredding. Hang the guitars on the walls and put keyboard against the wall after you get rid of that huge bookcase. The room need major de-cluttering. I worked for years out of a home office and it can get the better of you.

Hi Jo_floyd25 we would love to help out. Have you any plans for us to take a look at and see if we can offer an amazing solution? Best

Hi IdaC, I had the pleasure of living in a California Bungalow many years ago now that had almost exactly the same plan as yours apart from a few modifications that your house has had. The living and master bedroom were switched and the ensuite was just a bathroom from the hallway. The problem with the house plan is the blocking of the rear of the house by the kitchen wall to the hallway and so the circulation goes around through the dining. If you want to alter the layout for a more modern lifestyle with good access to the back yard, I would make the living room another bedroom and put in a new long but narrow bathroom occupying some of the current dining room or possibly part of the existing living if you don't mind a smaller bedroom. The new bathroom can be just 1200mm wide having a 1200 long shower against the outside wall with a high window in it and then the toilet and the vanity near the door. Put the plumbing on the new living wall unless you install full length wardrobes on the wall between it and the new front bedroom. Then I'd delete the back bathroom and make that and the laundry into a walkthrough scullery and laundry and keep the outside door. Put a galley kitchen along the central back wall of the house with an island facing a new dining area where your current kitchen is with double glazed doors to the front hallway. Then make the back bedroom and 3/4 dining room, the living room and open that up to the rear yard. Ideally you'd want the living space on the North side of the house and the plumbing areas on the South, but that might be an expense too far. You could build a really great outdoor entertaining space outside the living room that links with the backyard bungalow if that became an overflow living area/man-woman cave!!!! or just a granny flat or office. If you want to do it in two stages, start by builing the new bathroom and opening up the back bedroom and 3/4 dining into the living room. That way you can start with the three bedrooms where they intend to be. Then you can look at doing the kitchen, scullery, laundry and dining when you are ready and either set up a temporary kitchen in the living space or eat out for a few weeks between when the old kitchen is removed and the new one becomes usable. Good luck, Christine.