Why put yourself in a vulnerable position with building control ? 
There is a "theoretical" fine and daily fine (if non compliant)that could be charged against you
Your description makes the installation appear that it is installed correctly
Part p also applies to non registered first class,top of the notch electricians, who cant
even install a simillar set up to yours without what I would describe as, the nonesense of Part P,you can bet your house on there being a vast majority of installations done outside of part P
I would have my suspicions about the motives of any Kitchen fitter who uses Part p to put fear into an householder
They are one of the reasons registered electrical installation quality in dwellings has been undermined by their inclusion in a trade they mostly dont understand
If you have concerns that its not up to scratch and want to be assured of safety only,then an electrican ( not a Part p Kitchen fitter or Tiler or Plumber
) to test the circuit
If ever you want to sell, and by some unlikely odds you are asked for certification,that would be the time to have the whole inastallation checked(PiR)
The alternative which is the politically correct way, is not the procedure I would recomend
There is a "theoretical" fine and daily fine (if non compliant)that could be charged against you
Your description makes the installation appear that it is installed correctly
Part p also applies to non registered first class,top of the notch electricians, who cant
even install a simillar set up to yours without what I would describe as, the nonesense of Part P,you can bet your house on there being a vast majority of installations done outside of part P
I would have my suspicions about the motives of any Kitchen fitter who uses Part p to put fear into an householder
They are one of the reasons registered electrical installation quality in dwellings has been undermined by their inclusion in a trade they mostly dont understand
If you have concerns that its not up to scratch and want to be assured of safety only,then an electrican ( not a Part p Kitchen fitter or Tiler or Plumber
) to test the circuit If ever you want to sell, and by some unlikely odds you are asked for certification,that would be the time to have the whole inastallation checked(PiR)
The alternative which is the politically correct way, is not the procedure I would recomend
