ProDave

I built it entirely myself not from a kit. The only bit I bought was the rail and sliding gear I think intended for wardrobe doors. and the irnmongery. All the woodwork I just made.

The devil is in the detail. We used a sliding door in a previous house to comply with the (at the time) 2 doors between a kitchen and a WC. It was a sliding door between the kitchen and a short corridor. The door slid 100% into the pocket with a recessed finger pull on the end if you wanted to pull it out, and recessed handles each side to slide it. And it never ever got closed.

That's what I did. I fitted my door frames to match the doors, not the other way around, so no trimming of doors whatsoever and the ventilation gap left at the bottom. I also ommitted the door stop along the top of the door frame. It adds nothing to actually stopping the door, and adds another small space for ventilation.

Post some pictures of the work done and the gap. Who was the "Landscaper"?

I would "just do it" But I would not put it remote from the house as you have shown, I would put it adjacent to the house wall just around the corner on the side. Hidden by a tall fence and hedge I bet nobody will notice and you will get away with it. If you are served enforcement notice, then just move it around the corner so it is now on the back wall of the house and thus no closer to the highway than any part of the building.

the leak appears to be starting here What's going on there? Is that a hole in the tank? What for?

I have one of those. It is set up as a stupidly large tv in the smallest spare bedroom. But the real reason I keep it is as a spare. We have 2 large tv's in the two main rooms and if one breaks, I don't want to be rushed into getting a replacement, so I like to have a spare one that can be put into use while I either fix or replace the one that has died.

I am of the opposite school there. A pixel fault is likely a screen issue and unlikely repairable so I would have used the period when the fault went away to sell that so someone else before the fault comes back and possibly gets worse.

Personally I never see the need for an "AV Amp" That will route all input sources through that and output sound to the speaker and video to the tv. But more complicated to set up and my bugbear another remote control to juggle with. Instead I let the tv do all AV input selecting. Take Digital audio out from the tv to my very much simpler surround sound amp which is in fact just a DVD player with surround sound. I use 2 of these one in each living room and as they are old tech, you can get them cheap as chips I paid £20 for one recently a Sony, when it's predecessor failed and beat my attempts at fixing it. What is your budget and do you have to have new?

Some pictures of what you have might help. Trying to understand how you widen and lengthen a garage without knocking any of it down?

How about the largest touring caravan that will fit? or even 2 of them?

Very dependant on local LPA In my case they tried to force an "under your control" clause in, until I pointed out a few months before another planning app on the same road had been approved without an under your control clause so they removed it. During the discussions with highways about it they said of someone obstructs the visibility to inform them and they would come and deal with it.

A dead mouse under a floor board or kitchen unit etc can smell really bad for a long time

Most meter boxes seem to come with just a very thin bit of quite ordinary looking chipboard to fix to.

In Scotland, if it is better than 3 you must fit MVHR

I think the separation distance is 300mm. In any event I dug a trench with a 1ft wide bucket and one duct each side of the trench.

If it is decent top soil, it will get pulverised and full of all sorts of muck during the build, so scrape it off into a pile at the edge of the site until building has finished. Then spray with glyphosate wait until inevitable weeds have died, spread it evenly and seed.

Those roof vents connect with a flexible connection so that is a potential place for a leak. Is there any loft space at all and if so any access? If so does the loft smell?

Building warrant in Scotland is similar to full plans approval in England. There is no simpler option here. No building notice option. You submit your design to building control and can't start building until all details are approved. At least you then know if you build to the plans there will be no nasty surprises.

That will be heavy. Probably a 2 man lift with 4 handles, but someone else will have to advise what sort of handles to get as I don't recognise that type of cover.

That looks to be 200mm spaced pipes. Fine in a well insulated house like ours, we have 200mm pipe spacing and it works fine, but for a retrofit on an older house I would have expected closer. There is an air gap between the insulation and the spreader plates. If the detail at the ends of the run is not good, that void could just be full of cold air from under the insulation. My first thought is lift a floorboard at each end and see if that space is cold, feel for draughts etc.

I sometimes curse Scottish BC for being so pedantic about drain tests (they witnessed 3 separate drain tests here) but there is no way this sort of issue would have not been resolved if the OP's house had been tested as diligently. The time to find and fix a leak, is BEFORE it's all covered in plasterboard, skim and painted.

Stick silhouettes of predatory birds on the windows. (don't ask me what might attack a raven but some bird of prey? )

It is not the compaction risk that would put me off, it's what they leave behind when they take it. So I would say no.

You can do an air test yourself, I did mine all myself twice for BCO to witness. You do need to get up on the roof to put a blanking plug in the top of the vent, then you pump it up from the nearest access in an inspection chamber. My guess is you will find it won't pump up at all let alone hold pressure. As it's new, get the builder to come and do this, surely there is some form of warranty? Did you buy it from as developer or get it built for you?