Jonathan, I really like your idea. I think you are right about the structural wall. But the wall behind the little toilet is a stud wall! The east window in the hall allows in natural light so I think I should keep it. Building on your idea, how about this version? In this scenario, we re-instate the south facing bedroom door so that there is one less door on the east side. As per Jonathan's idea, we create a shower room from the bedroom in the north-east corner. Does it flow? Dear Houzzers, please share your wisdom . :) Where is the best place for the shower room door: where it is now or in the little corridor? Will you feel claustrophobic in the corridor because it is just over 90cm wide and has walls on both sides? What is the ideal side of that shower room? If take out 1.5m from the bedroom, I get a 2.5 x 2.5m square bedroom/study and a 2.3 x 1.5m shower room. Will these sizes work for shower room and study/bedroom? Thanks a million.

One plan- yes others in the street have extended to the front, although most have done a full height 2 storey extension - so the precedent is there. Jen - it is a lovely layout but we have the opportunity and the money to make it perfect before we move in so would rather reconfigure it now. The combined dining/kitchen would be only 3m deep, and we couldn't extend to the back as the garden is just about the right size - we don't want to eat into it. Plus the living room feels too long and narrow at 5m deep

Hi, Permitted development rights don’t start afresh with each new extension, they apply to every structure added onto the original building. So if you’ve built a large side-to-rear, it’s likely you’ve already used up most of your given allowance. This means your conservatory will most likely require a full planning application. In the event you still have some of your permitted development rights to play with, we would still recommend covering your back and applying for a Lawful Development Certificate. This documentation basically proves to both your local authority and future buyers that your build was legal at the point of construction. Essential going ahead with a second structure. Because you’ll be navigating a more intricate form of planning, we would recommend getting an architect on board for your conservatory. They’ll be able to assess whether or not you can create the structure you want with your remaining allowance, and if not, an architect’s planning support helps you avoid any of the common causes for rejection. If you’d like one of our experts to assess your future plans, we offer free consultations, which you can book here: https://resi.co.uk/advice_calls/new Hope this helps!

Just on the chimney point. We knocked through between our kitchen and small sitting room. We needed a structural engineer to specify the steel. as part of the work they took out a similar chimney and supported the chimney higher up with a diagonal steel. the whole job was £15k and the diagonal steel wasnt itemised but we had the wall taken out, new plaster throughout, lights, new floor, radiators etc included. so i guess a couple of thousand pounds for the chimney removal to first floor.