Kitchen stop cock and drain moving

Hi all,

We recently moved a house and want to re-arrange kitchen units a bit.
House is 2009-2012 built. Kitchen has small island which is not useful at all, takes space and makes kitchen feel smaller, less space for dining.
Ideally I would move sink, drain and stop cock under the window. Get rid of useless island and make kitchen plan 'U' shape.

I have one big problem though. Kitchen sink with stop cock and drain is located in kitchen island, kind of middle of the kitchen.
I would need to re-route drain and water supply about 1.2m away. It's concrete subfloor (not sure what's under it, insulation etc).
I understand I would need to dig out concrete, re-route pipes and re-concrete again.

So main question is - is this ok to do under regs/permissions etc? Is it a must for a plumber to be involved? How do I shut off water supply to stop cock?
I am DIYer anyway, got most of the tools, just not sure how far can I go with it myself?

Any help is appreciated.

AndyJako said:

I am DIYer anyway, got most of the tools, just not sure how far can I go with it myself?

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You can do it yourself, no permission required.

AndyJako said:

How do I shut off water supply to stop cock?

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There should be an external valve just outside your property, usually on the pavement. If you can't find it your local water authority should help.

OK, thanks appreciate quick answer.
After I posted this, went outside and checked meter in the pavement - yes it does have shut off valve. Never noticed it before. cheers.

Also while I am in this post I might as well ask regarding ground floor toilet and sink removing.
This house is 3 storey, toilet and sink in each. Ground toilet barely ever used, takes space, makes hallway really small. I am thinking to demolish toilet/sink are and make it into wider hallway/shoe area. Can I do this also without any special permissions? I would cap of supply and drain pipes under floor and that's all?

Cheers
Andy

AndyJako said:

Can I do this also without any special permissions? I would cap of supply and drain pipes under floor and that's all?

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Yes, that's usually all there is to it. No permission required.

AndyJako said:

Ground toilet barely ever used, takes space, makes hallway really small. I am thinking to demolish toilet/sink are and make it into wider hallway/shoe area.

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As you get older, you may miss the ground floor facilities.

Good point about getting older and missing it. I will have to double-think it.

Just one more silly question regarding concrete re-patch after moving pipes. I will be laying 2x6mm XPS insulation and water-proof LVT flooring over it after kitchen units are done. How long should I wait for concrete to cure before continuing? Can I use some faster curing mix etc?.. I imagine it will only be ~1.2m long and perhaps 250mm wide patch.. I know when it's full slab usually waiting time is few weeks. How about for a small patch?

Cheers

You can floor it straight away, it won't affect the patch.

OP,
1. A ground floor WC is a very useful fixture for old people or kids, & can be a selling point.
2. What you propose with the WC used to need Regs approval? Perhaps it still does?

3. You presently have a peninsula not an island.
4. The internal stop valve might be under the kitchen sink - thats where it should be located after moving the units.
5. You would be best advised to use a WIAPS qualified plumber