Sonesta Silicon Valley mailing address
To mail Sonesta Silicon Valley, send your letter to Sonesta Silicon Valley, 1820 Barber Lane, Milpitas, CA 95035, USA, addressed to Guest Relations. This is the hotel in Milpitas in the heart of Silicon Valley in Milpitas, California. To reach someone staying there instead, put the guest's name on the first line and "c/o Sonesta Silicon Valley" above the same address — and make sure it arrives during their stay.
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Mailing address
Verified September 2026Sonesta Silicon Valley — mailing address
Guest Relations Sonesta Silicon Valley 1820 Barber Lane Milpitas CA 95035 United States
General correspondence, guest relations, billing questions, and lost-and-found enquiries. To reach a guest who is currently checked in, replace "Guest Relations" with the guest's full name, keep "Sonesta Silicon Valley" on the next line, and add their arrival date so the front desk can hold the mail.
No printer, envelope, or stamp — we print and mail it the next business day.
Sources
Addresses verified September 2026 against official sources. Always confirm on the official site before time-sensitive filings.
Key facts
- Letters to the hotel go to "Guest Relations, Sonesta Silicon Valley" at 1820 Barber Lane, Milpitas.
- To reach a current guest, use their name, "c/o Sonesta Silicon Valley", the same address, and their arrival date — the front desk holds it for check-in.
- A hotel can't forward mail to a guest after they check out, so time it to land during the stay.
- Great for lost-and-found claims and billing questions: a mailed letter gives you a dated paper trail.
- PostPal prints your letter and mails it to the US for you — no printer, envelope, stamps, or post office trip.
How to send your letter
- 1
Decide who the letter is for
Writing to the hotel itself — a complaint, a compliment, a billing question, or a lost-and-found claim — goes to Guest Relations. Writing to someone staying there goes to that guest, care of the hotel, and only works while they're checked in.
- 2
Address it correctly
For the hotel: first line Guest Relations, then Sonesta Silicon Valley, then 1820 Barber Lane, then Milpitas CA 95035. For a guest: put the guest's full name on the first line, "c/o Sonesta Silicon Valley" on the next, the same street and city lines, and write their arrival date on the envelope so the front desk knows to hold it.
- 3
Keep it to paper, and time it
Send letters and printed documents — not cash or valuables. Mail for a guest should arrive during their stay, so post it a few days ahead; if you're not sure of the dates, call the hotel first. A hotel can't forward mail to a guest who has already checked out.
- 4
Send it without a printer
Write or upload your letter to PostPal with Sonesta Silicon Valley's address prefilled. We print it, add your return address, and mail it to the US for you — no printer, envelope, stamps, or trip to the post office.
Common questions
What is the mailing address for Sonesta Silicon Valley?
Sonesta Silicon Valley, 1820 Barber Lane, Milpitas, CA 95035, USA. Address letters to the hotel to "Guest Relations, Sonesta Silicon Valley" at that address.
How do I send mail to a guest staying at Sonesta Silicon Valley?
Put the guest's full name on the first line, then "c/o Sonesta Silicon Valley", then 1820 Barber Lane, Milpitas, CA 95035. Write the guest's arrival date on the envelope and post it so it arrives during their stay — the hotel holds mail at the front desk for current guests but can't forward it after checkout.
Can I mail Sonesta Silicon Valley about a lost item?
Yes. A letter to Guest Relations at the address above is a good paper trail for a lost-and-found claim — include the dates of your stay, your room number if you have it, a description of the item, and your return address so they can reach you.
Can I send Sonesta Silicon Valley a package or a gift?
PostPal sends letters and printed documents, not parcels. Many hotels will accept a package for a registered guest, but policies vary and there may be a handling fee — call the hotel before shipping anything, and never send cash.
How do I mail Sonesta Silicon Valley from Canada without a printer?
Write or upload your letter to PostPal with the address prefilled. We print it, add your return address, and send it to the US as an international letter — no printer, stamps, or post office trip needed.