General town-hall submission (registro de entrada)

What to have ready

• Identification: Cl@ve PIN/Permanente, certificado digital or DNIe.
• Your details and an email/phone for notifications.
• A PDF letter explaining what you ask for and who it’s for.
• Attachments in PDF (receipts, photos, quotes…).
• Representation if you act for someone: apoderamiento (https://apodera.redsara.es) or authorisation + DNIs.
• If applicable, proof of payment for the specific municipal fee.

Documentation

1. DNI/NIE/passport (online: identify with Cl@ve/certificado).
2. Signed letter (many sedes request an electronic signature when filing).
3. Attachments in PDF, with a reasonable size (10–20 MB max is common).
4. Expediente number if replying to a file.
5. Power of attorney or authorisation if you represent someone.
6. Proof of fee payment only if your request requires it.

Step by step

1. Find the instancia on your ayuntamiento’s sede. Examples: Alicante (https://sedeelectronica.alicante.es), Pamplona (https://sedeelectronica.pamplona.es), Zaragoza (https://www.zaragoza.es/sede). If there’s no sede, use the REC: https://rec.redsara.es/registro/action/are/acceso.do
2. Identify yourself with Cl@ve or certificado. If you represent someone, check your apoderamiento at https://apodera.redsara.es.
3. Fill the form: your details, órgano destinatario (choose Registro General/Secretaría if unsure), a clear subject and a short summary of what you ask.
4. Attach the letter and attachments in PDF. Convert and compress if needed. Name files clearly ("escrito.pdf", "anexo1_factura.pdf").
5. Sign and submit. If AutoFirma launches, have it installed (https://firmaelectronica.gob.es/Home/Descargas.html). Don’t close the window until you see the receipt.
6. Save the receipt (registration number, date/time and CSV). Back it up to your cloud and then check Carpeta Ciudadana: https://carpetaciudadana.gob.es (Mis registros).

Time-saving tricks

• Write clear and short. Put technical details in an annex.
• One PDF per document and readable file names. Avoid crooked photos or shadows.
• If the sede doesn’t let you pick the right service, state it in the subject and the text ("For Servicio de Urbanismo – Licencias").
• File before 23:59 if you’re cutting it close: the day will count, even if it’s a non-working day, and the deadline is computed from the next working day.
• If your browser fails, try another. Many sedes work better with Chrome or Firefox.

Common mistakes that can ruin the process

1. Sending to the wrong body and losing days while they forward it.
2. Attaching DOC/JPG when only PDF is accepted. It can be rejected without a clear warning.
3. Not proving representation. They’ll ask for a subsanación and you’ll lose time.
4. Not saving the receipt. Without the CSV it’s hard to prove you submitted it.
5. Huge files. The sede can choke or fail to upload; split and compress first.
6. Not checking notifications. They’ll reply through the sede or Carpeta Ciudadana; if you don’t log in, you’re considered notified after a few days.