Dreadnaught

Slightly of topic, here are two tips from my notes for when I met a garage door supplier/fitter on-site and someone else's build last year: To get best price for the door, specify standard sizes (in price brackets), possibly with imperial measurements When pouring the slab, remember the slope for the garage door-lip in the slab (or have a slatted drain, like @nod's photo above)

Thanks @Hobbiniho, I really appreciate it. I think I am learning the principles now: Access needed to every run. Inspection chamber if its a junction with multiple connections. A rodding eye if its a single run. Keep it straight and simple and minimise trenches under the slab where possible. What I have not emphasised is that I have a preserved tree on the site, shown in the bottom left as a circle just outside the boundary. That gives a root-protection zone. The relationship with my tree officer will be improved if I keep the trenches out of the root zone, which covers the entire bottom-left corner of the plot. The point at which the services in enter the plot is in the root zone. This is unavoidable. The root zone is the reason that the around-the-houses scheme shown in bright green 5x posts ago and reposted below is the one I currently favour. The advantages of the around-the-houses scheme are: Just three long runs. KISS All runs accessible from ICs Fewest ICs (one less than proposed by my engineer) Minimises trenching in the root zone (much less than before) Minor: all IC's out of sight around the back of the house. Questions I still have: Does it matter if a long-ish foul run (>15m) is accessible from only one end (like myright-hand most run in the around-the-houses scheme)? While surface water ICs can be 200mm, how does one decide the size of a foul inspection chamber? 450mm vs 200mm, etc.? Can I fit all my services in a single trench under an 850 mm path between my outside wall and neighbours fence? All services: foul drain, surface drain, electricity, gas, water, data. Which is better. For a kitchen against an outside wall, take the drain through the slab or though the wall? Note: my dwelling will be on screw piles so the fact that the wall of the house will be adjacent to this single service trench should not be a concern, I assume.

My TBS, installed within the last month or so, is attached to a pair of fence posts next to a fence. The cabinet was like one of Jeremy's above. I sought the permission of UKPN for this arrangement prior to the install and they said it was fine. The guidance from UKPN prior to the installation had been for a large ground-mounted cabinet with a concrete footing but I wanted something cheaper and simpler.

Ah, how about this (bright green)… just two IC's, no rodding eyes. Both ICs are behind my dwelling out of sight but accessible (there is a 0.85 m path there next to the fence). The kitchen could drain through the wall? Is that OK? This has an 18 metre FW drain-run under the slab but it is largely outside the root zone. Is it too long? I think the falls will allow it (my engineer can check). Combined with moving the SW drain to the north side (thanks @PeterW), I have removed lots of the the trenches from the root zone. My tree officer will love me (or at least frown at me less)! What do you think?

@PeterW, front door is here…

Is it permissible to have junctions in FW drains under a slab, so long as all the runs are rod-able from rodding eyes, like this (bright green, with no IC's at the junctions)?

@PeterW, architect has not drawn the new now up yet, sorry. Only change in the plan will be the kitchen moving from west wall to the north east corner of the open plan kitchen/dining/lounge. On invert levels, I think we have lots of play with. In the access road, the SW drain invert is 2m down. The FW drain invert is 1m down. Does that help?

Makes sense. Middle top is the kitchen (the underlying plan is out of date). Good news. Thank you. FW too or do they need to be 450 mm?

Thanks @PeterW. Like this you mean … ?

I have a first design for my foul-drainage runs (in red) from my engineers. A couple of questions… Could I combine the two right-most ICs into one? It might mean one of the runs would intersect the IC at 90º. Do the IC's all need to be 450 mm diameter or would smaller do, .e.g. 300mm or 320mm? I ask as my engineers, more used to big civil projects, tend to over specify things I think. (IC = inspection chamber)

Welcome!

Where would be the storage for things that are used on the veranda? e.g. folding tables, stackable chairs, cushions, etc. Perhaps swap the bathroom and store so the store room is nearer the veranda and perhaps make the store room accessible directly from the veranda?

Nice design. Some comments on the layout: I assume the en-suite and bathroom windows will be frosted. How about roof windows instead, they let in more light? For the en-suite, it would allow a mirror over the sink. Will your roof makeup allow for roof windows? Is the entrance hall dark? Is the interior vaulted ceilings?

Is it not possible to use a sacrificial EPS layer such as CellCore in place of the void? e.g. https://cordek.com/products/cellcore-hxs Its what I plan to use under my reinforced concrete raft and the raft's EPS insulation. My raft will be attached to piles because of clay and for tree root protection. (Note: a SE has not yet designed my raft, that will be done later by the timber-frame supplier, which in my case will do both frame and foundations).

@Triassic, @Russell griffiths, haha: my drainage scheme is fortunately still only on paper otherwise, who knows, it might well have been that 1-in-100 +40% event that my SUDS engineers were required by my local council to model for my plot.

"Grenfell survivors and relatives open US legal battle" "The lawsuit will target the cladding maker Arconic, insulation maker Celotex and fridge supplier Whirlpool." https://www.bbc.co.uk/news/uk-48576580?ns_campaign=bbcnews&ns_mchannel=social&ocid=socialflow_twitter&ns_source=twitter Blimey!

Welcome @Kay Pee!

Welcome! The site sounds idyllic. Will you take the role as prime contractor yourself?

One of the authors, Guy Shrubsole, has recently written this book, which is reviewed in the Guardian here.

Very interesting topic. Will be following. I wonder, do you plan for the lights be dimmable or controllable with automation?

Welcome @Milo.

Welcome!

Why might that be so? (Hoping to have FTTP for my forthcoming build and I think there are providers in my area, as well as there being Virgin Media).

More ingenuity. Impressed!

Hadn't thought of that as a solution: ingenious. Any reason why metal mesh, stapled in place, wouldn't have worked?