Couple of options, one of which provides an extra room or could be left as storage via garage door. Don’t be put off moving water, waste etc. I have just moved my kitchen into a new room and the cost of moving all the plumbing was £400. Similarly taking out a structural wall was less than £2500 for a 2 metre opening and I paid a mark up as I was paying through a kitchen design company who I have no doubt are marking things up to bump up their profit.

Hi! There are many variations you could try. It's worth building a little model in cardboard to help visualise it and move the furniture and kitchen units around in the model. I think it's worth looking at moving the kitchen to the corner of the L. You'll also find the renovation roadmap workshop I'm running next Friday helpful for managing your project - so you can keep it on time, in budget and the quality that you want. It's just £47 and 100% of profits go to the homeless charity Coffee4Craig. You can find out more and save your spot here: https://iarchitectlimited.vipmembervault.com/products/courses/view/1145853 Best wishes with your home redesign! Jane award winning chartered architect eco-home and conservation area specialist www.i-architect.co.uk For helpful videos watch my YouTube Channel here: https://www.youtube.com/@iarchitect

Maybe use the area of the kitchen that juts out as a utility? Dining table in front of patio doors.

Sorry for the crude mock up - bit here is an idea: instead of cabinet under TV use that space for storage bench and turn the table 90 degrees. bench is space saving! put TV on the wall bordering with bathroom. Move patio doors more to the right, you will free up space to the right on the kitchen window for double fridge and freezer. The columns dont need to be this big, you may not even need any if your strucutral engineer calculates that it is enough to bury padstones in the wall