In Lanzarote, the place to register is at the Delegación de Gobierno – Unidad de Extranjería office in Arrecife.
What you need to take
You have always to attach the following documents:
Passport or other identity document (not expired)
Official form (EX-18), two copies, filled and signed by the UE national.
In addition, you will have to attach other documents, depending on your situation:
salaried workers – your contract of employment or other proof of your employment status.
self-employed workers – proof of registration in the register of economic activities (censo de actividades económicas) or other proof of your employment status.
not in employment in Spain?
(i) health cover valid in Spain and
(ii) sufficient means to support yourself and your family.
Pensioners – provide proof of public health cover.
(i) proof of your registration in an educational establishment,
(ii) proof of public or private health cover and
(iii) formal declaration that you have sufficient means to support yourself during your stay.