Here you are some of the services provided.
Police: Residency, NIE certificate.
Social Security: S1 registration, register at «Convenio Especial»,
Centro de Salud: SIP card.
Traffic Dept.: Car import, spanish driving license, etc…
Taxes: Taxes for residents and non-residents, holiday rental taxes, fines, IBI, etc…
Townhall: Padrón (registration at the townhall).