After getting inspiration and ideas from your layout, I threw a budget out the window and started asking myself what would I do if money was no object. I started by tackling one of my bigger issues with the house - the 1970's facade. See front elevation view of house as it stands now: Current Facade: The layout below modernizes the face of the house (something I didn't think was possible) by making the main entrance on the ground floor - the 'Wow factor' comes from a double staircase on leading up to either the main hall or the sitting room, double height single pane windows mean both staircases are visible from the outside (Also letting tons of light through). The ground floor entrance is large enough to be used as a separate living space by itself (which is no harm as the staircase into the sitting room reduces its size. The only planning changes are to the centre section of the front facade. Updated Facade and Layout: Thinking the new front would look well finished with stone. Per your advice the fireplace is now moved to the side of the sitting room leaving a large centre window and the kitchen is now utilising the old utility space by removing the old kitchen W.C I also took the advice on Bed 3 but I have left the original master as is. The hotpress is now in Bed 3's old ensuite. I couldn't even hazard a guess on the cost of works detailed above.....

https://www.houzz.co.uk/discussions/layout-and-renovation-ideas-please-1930s-bungalow-dsvw-vd~5609818?n=10 This is the post with the floor plan

Jonathan, moving the bathroom as you have was actually Plan A but I got cold feet about the cost of moving the bathroom although I loved the idea of a line of sight from front door to back garden. We only roughly sketched it and having seen your beautiful floorplan I am thinking we’ll regret it if we compromise instead. The bungalow looks so much more balanced than it does at present and has a flow to it, which it currently completely lacks. Thank you so much for taking the time to draw it up so nicely :) love the addition of a cupboard in hallway to bedrooms and one in entrance hall as Rinq latterly suggested (completely agree on need for this Rinq) and access to toilet from garden - have 3 year old and 10 week old so very necessary, as is catching the mud before it comes indoors! Can I just ask, on the right hand side of kitchen is that recessed cupboards? Ps. You got the layout of our sofas bang on ;D

Yes, one bedroom less, though if 4 is a must, the front lounge could be kept a bedroom as is (i moved the wall to enlarge it) and a narrower table and regular chairs (the ones in my scetch are rather large) the dining would fit in the kitchen and the lounge can easily go near the fireplace. I understood from OP that they want to use the front room as lounge, so i assumed 3 bedrooms is enough.