Remove pipe from wash house?

[PalletRefurb]

Just after a bit of advice, I'm currently doing work in my wash house to make it into a dining room, however in the middle of the floor I've got a live water feed coming from the concrete with its own stop cock (independent from the main houses supply)

Any suggestions in combating this pipe? Is it a waterboard job? Or a can of pipe freeze and isolate it below ground level? Not sure how accessible the outside stop cock is (in the roadside) I recall last time I looked it has been backfilled after the Council replaced some paving stones.

 

[Newboy]

Ideally you need to trace the supply back to live pipework and cap off as close as possible (to prevent creating a deadleg)

 

[Hugh Jaleak]

Could you reroute the pipe under the floor to an external wall to feed an outside tap? Otherwise as Newboy says, you will need to trace it back to the tee where it joins the supply pipe and cap it there, deadlegs can cause issues with bacteria build up in the stagnant section.