Murcia
Ayuntamiento de Murcia — Servicio de Estadística, registro padronal de Puerta Nueva
Calle Puerta Nueva 10B, 30001 Murcia
Book the appointment for registrations, removals and changes, not the certificate one, and say you are moving abroad.
Use Solicitud de baja por marchar al extranjero or a signed written request stating that you are transferring residence to another country. Attach a copy of your current identity document; the linked model names NIE (foreigner identification number) or passport. Include the registered Murcia address, destination and requested identifying/contact details. Keep proof of filing and ask how to obtain confirmation. Do not use the separate baja de domicilio form intended for improper registrations. Ask the office which submission methods are available for a move abroad and when you can expect confirmation.