At the moment, you are permitted to validate your EASA PPL(A) with a medical
self-declaration (not LAPL medical) which will allow you to exercise privileges in accordance with the ANO. See
CAP 1441 for more details. When using this combination, you are limited to the privileges of a LAPL holder and UK airspace.
This will allow you to fly until you submit your PPL for a LAPL re-grade. Since you are only allowed to hold one EASA licence for each category of aircraft, you will have to forfeit your EASA PPL when you apply for a LAPL. The gotcha is that the only route back to a PPL is via the training course and PPL Skill Test, so if it's a temporary downgrade of your medical I would recommend using the self-declaration or NPPL route.
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