I'm blown away by the response on here an first would like to give my sincere thanks for all the advice. I wanted to add some more details and thoughts to everyones comments. In roughly the same order (i.e. Tamp75, Riches Interiors, keiblem, Ellie). The way we see the "study" is effectively an extension of the living room. It used to be the dining room and we were toying with the idea of incorporating it with the kitchen diner. However i felt that it would be very long and relatively narrow. The study is actually closed from the kitchen diner but we thought the flow and access from the conservatory would make the journey very long. So we asked if we could have a door there. The architect then put 2 double glass doors which we actually kind of like as it lets light through and let's us keep in line but allows cooking smells to be kept in the kitchen if required. Bu of course we lose more space in that area having to open the doors. Here is a 3d model the architect did. The utility room (in purple) would have the internal door into the kitchen, just not 100% sure where. I absolutely agree, we do not want to trek outside to get to the laundry. We have the dryer in the garage now, and it's very offputting and easy to forget to leave it in! None of the furniture or cabinets are set. They were placeholders from our architect to give an illustration. This includes the island which is a placeholder and we may not go with one depending... Also basically none of the internal walls are set, we can still change it. This, i suppose is the big thing, as if there is a better way to use the space, we're open to it! For the conservatory it's pretty much as you say RIch and keiblem. We do love it, when it's right, but can't use it half the year as it's too cold or too hot. So the current plan is to add a roof to it and any required brick work to support the roof. Hopefully this will give us a quiet space to read or do some exercise all year round. Here is the 3d plan from the architect. The "dead" zone on the right in between where the dining table is, the rear external doors, the double internal doors and the hallway door is one of our biggest current concerns. And can we fit the dining table in this area with people sat down and there is still enough space for someone get by to access the kitchen. And yes, Ellie, that is pretty much the problem in a nutshell. We have deciced on the footprint, but are very indecisive on internal walls and general layout. If we have the utility room there, there is a kind of corner that is made in the kitchen. Would it be or look weird if I put the stove and or sink in that area with it maybe looking sort of recessed? I wanted to match the wall to match the central line by the stairs to make the room see more unified and square. Example below I don't want to add anymore, as it's a super long thread again. But again i'm blown away by everyone on here so many many thanks.

Sorry, just stumbled across this and thought we'd chip in - in case anybody else came across it. There are load of good 3 and 4 bar options with different profiles: heritage internal doors We'd be intrigued to know/see what you ended up going for? And how you feel about it now?

I am so much surprised that simple things are lacking in many homes in here, and pro - architects, pro-decorators and pro- interior designer really try hard every time to give the same advice: just get some artwork surrounding any part of your house, that is all you need! do not spend billions for nothing, simple things are the solution: art is simple and it is the solution, You can use anything as art decoration: panels made out of pottery, fusion glass, copper artworks, or even now some metal workers make marvels with steel and iron. You know what: the problem is that when you look at your door, you just can see `the door`. If there were some artworks around it, you would stop looking at your door, and start to look to the `artwork` and the `door`. That is the simple stupid hint of life; `artworks` that is all!

Just at a glance it would help if the kitchen and dining room were connected. You might have to lose the shower and wc though. I would consider an extension. That way you keep the downstairs shower and wc, might have room for a utility and can open up the whole back with crittall doors. An architect should be your first port of call. If you have experience a builder is worth a call too. If you have any other information you will get better advice as to whether the walls are likely to be loadbearing or not. Budgets usually dictate what changes are possible.