Dealing with Floor Hatches

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I have 3 smallish access hatches in my suspended floor which is otherwise fixed down with u/floor heating pipes in.

 

1/ one hatch will be under the sink unit, not visible and inaccessible without removing the whole worktop and then the sink unit - access hopefully very unlikely

2/ one hatch will be under the washing machine, not visible, accessible by pulling machines out and removing a divider panel - access hopefully very unlikely

3/ one hatch in an alcove//cupboard area, visible when sliding door open - access very likely if any wires need pulling to the AV/network cupboard

 

Floor is going to have leveller then LVT. Not sure how best to handle these hatches...

 

Bury under the leveller/LVT floor and forget ?

Create some kind of position template/measurements, then just bury under the leveller/LVT floor ?

Create some kind of enduring hatch by having a break in the leveller and LVT and a hatch that can be lifted somehow ? By removing screws ? By using a sucker to lift the hatch ? By putting holes or slots in the floor and using some kind of lifting handle ?

 

Anyone had or done similar ? Suggestions or advice ?