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Liberal Democrats head office mailing address

To mail a letter to Liberal Democrats, a UK political party, send it to the party's national office at Liberal Democrats, First Floor, 66 Buckingham Gate, London, SW1E 6AU. The Liberal Democrats are a UK party formed in 1988 from the merger of the Liberal Party and the Social Democratic Party, occupying the political centre. This is the party's publicly published head office — the right address for membership correspondence, policy feedback, and letters to the party. Add your return address if you'd like a reply, and confirm the address on the party's official site before anything time-sensitive.

Liberal Democrats — national office

Liberal Democrats
First Floor
66 Buckingham Gate
London  SW1E 6AU

Membership correspondence, policy feedback, mailed donations, and letters to the party. This is the national/head office — not a local candidate's constituency office or riding association.

Verified September 2026libdems.org.uk

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Liberal DemocratsFirst Floor66 Buckingham GateLondon, SW1E 6AU

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Key facts

  • This is Liberal Democrats's national head-office address, taken from the party's own official site.
  • Liberal Democrats is a UK political party founded in 1988.
  • The Liberal Democrats are a federal party, with separate state parties for England, Scotland and Wales; 66 Buckingham Gate is the federal head office in Westminster.
  • Address a specific team with an attention line (e.g. "Attention: Membership") so mail is routed internally.
  • Use it for letters, membership forms, and printed documents — not parcels or gifts.
  • PostPal prints your letter and mails it for you — no printer, envelope, stamps, or post office trip.

How to send your letter

  1. 1

    Decide who your letter is for

    A letter to the head office reaches the party generally. For a specific team — membership, the leader's office, or a policy area — add an attention line such as "Attention: Membership" so it's routed faster.

  2. 2

    Write your letter

    Keep it clear and factual, whether it's about policy, joining, or renewing. Include any membership number and your return address so the party can write back. The Liberal Democrats are a federal party, with separate state parties for England, Scotland and Wales; 66 Buckingham Gate is the federal head office in Westminster.

  3. 3

    Address it to the national office

    First line: Liberal Democrats. Next: First Floor. Then the street: 66 Buckingham Gate. Then the city line: London SW1E 6AU.

  4. 4

    Send it with PostPal

    Write or upload your letter to PostPal with the address above prefilled. We print it, add your return address, and mail it for you — no printer, envelope, stamps, or trip to the post office.

Common questions

What is Liberal Democrats's head office mailing address?

Liberal Democrats, First Floor, 66 Buckingham Gate, London, SW1E 6AU. It's the party's publicly published national office — the right address for membership correspondence, policy feedback, and letters to the party. Confirm it on the Liberal Democrats's official site before anything time-sensitive.

Will an MP or the party leader read my letter?

Letters to a national party are opened and sorted by staff, who route them to the relevant team — so your letter is handled, but a personal reply from the leader or an MP isn't guaranteed. A concise letter with your return address and a clear ask gives you the best chance of a response.

Can I mail a membership form or a donation to the Liberal Democrats?

Often, yes — many parties accept mailed membership forms and cheque donations at the head office. The Liberal Democrats are a federal party, with separate state parties for England, Scotland and Wales; 66 Buckingham Gate is the federal head office in Westminster. Follow the instructions on the party's own join/donate page, and mark the envelope "Attention: Membership".

Is this a local candidate or riding association address?

No — this is Liberal Democrats's national head office. To reach a specific candidate, MP, or local constituency association, contact that office directly; use the head office for party-wide correspondence.

How do I mail the Liberal Democrats a letter without a printer?

Write or upload your letter to PostPal with the address prefilled. We print it, add your return address, and mail it for you — no printer, stamps, or post office trip needed.

Sources

Addresses verified September 2026 against official sources. Always confirm on the official site before time-sensitive filings.

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