I would suggest playing around with your zones, move them without hesitation then sit in each space and rule them out or in as you go. Fresh eyes and all that. I would move your dining to your current lounge, the lounge int that alcove where your study is, you window is higher in here and will accommodate that smart fabric sofa with the tv cabinet on the opposite wall, the armchair will fill the corner really well with a smart floor lamp to accentuate the window and views by night, it will easily become a cool place to retreat. Lounges are also nicer when they have some sense of detachment from the busy work zones ie kitchens and hallways. Your study can be modernized and positioned where your current dining table is, because it's small, and would be an afterthought as you walk right past it from the corridor entering this space. Think stunning bookshelves. Some retro looks have floor to ceiling open backed shelves that could create a hall divider when coming in, so the kitchen is a little more separated, but also, the wall could have some smart practical joinery built here. I would put a desk along the short wall with a designer chair, maybe an upholstered one, a featherston or eames. This creative space could really sharpen the overall look in here, there are some amazing looking workspaces to be inspired by, and the new lounge would feel a real getaway tucked into your corner. You simply go there to relax and Wong have people walking through or past you anymore. The dining room will be where it naturally floes towards, although I love your furniture, id consider some eames or tolix replica chairs with this table as well.

probably too late now but my suggestions include 1. exchange the glass slider in the laundry for timber framed glass door with venetian, 2. changing the internal laundry door position allows for extra storage, accessed from the hallway, while still allowing 2.7m laundry counter with space for a drop in sink, under bench basket, washer and floor standing dryer (very happy with this arrangement with wall cabinets and hanging rail) 3, reducing the depth of the pantry to 1200 and changing the pantry door allows better use of the space, easy access to set down counter for fridge and unloading groceries into the pantry, room for full size freezer and the space taken off the pantry is added to 4. bigger bedroom with smaller wardrobe and the re-positioned door gives more flexible use of the bedroom and extra storage from the hallway...BTW check out the good tax rules for owners who rent their homes for up to six years..

Simon, 100% agree with OKlouise, she's on the right track..... I've done a stack of these types of things.....big projects, that call for professional solutions....what I would say as a start is that there are always various ways of achieving your needs. It's not just about the rooms, it about the quality of the spaces, the proportioning their connection/relationship to both the adjacent internal and external areas.....I'm guessing from the floor plan you have a lovely older home with some traditional character...depending upon your needs for the rear yard (pool??) I see opportunities here for alternative configurations that would open this thing up and let more natural/north light into the main living/kitchen areas.....if you want my 2 cents I think for a home of this scale no you shouldn't have to pop through the kitchen to get to the study...a study nook within a kitchen is OK but as a differentiated room that could potentially be used for other purpose (always good for the property value factor ;) )....its ALL in the planning, there's a lot of money involved here so make sure you get it right and if it doesn't "feel" right, then there's an issue.....clearly here you have priorities and vision for your study, and that's great, so make sure you get it right and that the outlook is how you want it to be - so it should, it's yours!.....but it's not a simple as just swapping the spaces around/over...floor plans are delicately balanced and carefully considered/arranged and when resolved properly/professionally they will just sit there and be unquestionably "right", appropriately scaled & proportioned, not awkward, representative of your specific requirements/priorities and balanced within the particular context....

if you post the whole floor plan we could see adjoining rooms and all the doors and windows and do you intend to use the whole dining and lounge for the study with small sofa, piano and Ikea shelf?..do you need a desk and/or other furniture ..what will you use the rooms for and will it need to be shared with other people and purposes eg will it be a separate study/work space from the rest of the house or will you still need to include a dining table, lounges and TV etc