Sounds like you have a good plan, call an experienced, recommended, reliable contractor. Maybe he/she can help you with an interior room divider, for the front door direct to lounge problem too. Here are some ideas https://www.houzz.com/products/room-divider-prbr0lbl-pl~l_38829

How about some pictures?

Update: after 3 days the water in the hole has still not drained. We don't have a boggy section though... so seems a little strange.

Hi , I'm not sure if this is the right place to post this , or whether it's even allowed , but a question here on Houzz today got me thinking about a house my parents built . I spent my childhood living there , so it is probably the most 'special' memory for me . The moderators can delete this if its not suitable , and anyone and everyone can add to it . . . . . . . . . . So it was 1973 in rural New Zealand , my parents were farmers and ambitious , they had bought their first farm about 5 years earlier , and had just bought the neighbouring property . They wanted to take on staff , and it was either build them a new house , or one for 'us' . I was just starting at school , and the old wooden farmhouse was nice -- the old slide up windows , wooden floors , nice verandas -- it was fun . They decided we would get the new house , and unbeknown to me then , they must have been mortgaged up to the eyeballs , but they got an architect , chose a nice slightly sloping spot ( the joys of many hectares to choose from -- or maybe the few facing the road with a view too ! ) , and a plan was put in place haha ! Being a sloping section , it was built on 3 split levels . I think that was fairly common then , but this was slightly different -- the top 3 bedrooms , one bathroom , one toilet , and office , had an 8ft ceiling height . The next 2 bedrooms and another bathroom and toilet , and the garages and storage ( which was basically a wing out the back ) had a 9ft stud . Then down 3 or 4 steps , and the lounge , kitchen , dining , washhouse , and family room had an 11 foot stud ! The lounge had a huge ( for the period ) glass window , from memory 9 ft tall and something like 14 ft wide . One piece of glass . Hopefully strenthened glass -- we never broke it in 20 odd years luckily ! With 4 opening windows down one side . Aluminium framed , like every window in the house . So we are talking 1973 , very high ceiling , large glass window . The entire house was in a weird ( but trendy at the time ) chocolate brown brick , but roughcast on the outside with these charcoal big flecks sticking out half an inch or so . And here was where it got more unusual -- the opposite side of the lounge ( opposite the huge window ) was done as a feature wall , in the same brick , inside ! So this huge 11 foot tall brick wall as a feature wall in the lounge ! Strange ? Well -- about 2ft 6" in front of that was another wall , in the same brick , about 2ft 6 tall -- yes , a planter ! The middle 3 foot or so of this planter had a 'ledge' , and our huge 25" TV ( or whatever was huge at the time ) was on this ledge , almost hiding amongst all the leafy plants , in pots , in this planter box ! I guess iconic 70's , just seems a bit naff now . And one weird thing ( knowing what I know now , it makes sense ) -- a long house on a sloping section , built on 3 split levels , but with a flat ceiling , would look weird wouldn't it ? Even with a large feature window , it'd look quite boring ? Umm , no . I didn't know it at the time , but this must be where architects come into their own . The 'rumpus room' ( it would be called a family room these days ) on the left hand end had a ranch slider , with a terrace out the front , and the ( tiled ) roof came 4 or 5 feet out from the front , to cover this terrace . And this room was maybe 20 foot deep , most of the rest of the house 30-35 feet . So this roofline was a foot or so lower , and 3 foot lower at the peak , than the rest . Then was the dining room , with the kitchen behind it . Set back 5 or 6 feet , so quite a deep terrace , with a 6foot square fixed window and the main entrance door . You could just about hold a conference of 30 people on that terrace , out of the rain haha . The kitchen was at the rear , and had windows on the side wall ( as it was quite a bit deeper than the 'rumpus room' ) and one of those glass things with angled glass on top and sides ( bay window ? ) at the rear . This 'section' , and the lounge ( with laundry and a seperate toilet and a sewing room and a hallway , all behind the brick feature wall ) , all had the same roof profile . Then the whole house 'stepped back' 3 foot , as well as 'stepping up' 2 foot , so it had a whole new roof profile . And then the 'top' part stepped up another foot , but slightly strangely , also forward 1 foot . So outside was 4 completely seperate roof profiles -- inside were 3 split levels , but the ceiling was completely flat ! From memory , it was about 2200 square foot ( which was big back then ) , and another 1000 or so garage and storage . I'm not sure if they were joking or not , but Mum and Dad used to say that the garage was put around the back , because if it had been added on the end , people would think we were rich haha ! I think the house was about 90 foot long , the garage would have added another 40 ! And for anyone wanting modern measurements , work it out yourself haha . Whats your story ?