How to write to Cat Smith, MP for Lancaster and Wyre

To write to Cat Smith, a Labour MP for Lancaster and Wyre, address your letter to Cat Smith MP, House of Commons, London, SW1A 0AA. That reaches her office at Westminster. For local casework, many MPs also run a constituency office — its address is on her profile at members.parliament.uk. Say you are a constituent (your postcode proves it) and keep the letter to one issue with a clear ask.

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Mailing address

Verified July 2026

House of Commons — Westminster

Cat Smith MP
House of Commons
London
SW1A 0AA

Reaches the MP's parliamentary office at Westminster — best for your views on legislation, votes, and national issues.

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Sources

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

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Key facts

  • Cat Smith is a Labour MP for Lancaster and Wyre.
  • Write to Cat Smith at the House of Commons, London SW1A 0AA — this reaches her office at Westminster.
  • Identify yourself as a constituent: include your full name, home address, and postcode so Smith's staff can confirm you live in Lancaster and Wyre. Constituent post is prioritised.
  • Any UK resident may write to any MP, but for local casework it is your own MP whose office will act.
  • For local casework (benefits, immigration, council problems) many MPs also run a constituency office — find its current address on Cat Smith's profile at members.parliament.uk.
  • Unlike some countries, post to a UK MP is not free — a normal stamp applies. PostPal prints your letter and posts it via Royal Mail the next business day for £4, no printer or stamps needed.

How to send your letter

  1. 1

    Choose Westminster or the constituency office

    Writing about a bill, a vote, or a national policy? Use the House of Commons address — it reaches Cat Smith's parliamentary office. Need help with a personal casework matter (benefits, immigration, a council dispute)? Many MPs run a constituency office; find its address on Cat Smith's profile at members.parliament.uk.

  2. 2

    Say who you are and where you live

    Open with your full name, address, and postcode. MPs' offices sort post by whether the writer is a constituent, and your postcode is how they confirm you live in Lancaster and Wyre. If you are writing to an MP other than your own, say why their role or seat matters to your issue.

  3. 3

    Keep it to one issue with a clear ask

    One page, one topic, one specific request — support or oppose a bill, raise a question in the House, meet you, or take up your casework. A short letter with a concrete ask gets a real reply; a multi-issue essay gets a standard response.

  4. 4

    Send it without printing anything

    Write your letter in PostPal with Cat Smith's address prefilled and we print, envelope, and post it via Royal Mail the next business day for £4 — no printer, envelope, or stamp needed.

Common questions

What is Cat Smith's mailing address?

Cat Smith MP, House of Commons, London, SW1A 0AA. This reaches her parliamentary office at Westminster. For local casework, Cat Smith may also run a constituency office — its address is on her profile at members.parliament.uk.

Do I need a stamp to write to Cat Smith?

Yes — post to a UK MP needs normal postage; there is no free-post to Parliament for the public. PostPal handles the printing, envelope, and Royal Mail postage for you for £4 if you would rather not sort it yourself.

Do I have to live in Lancaster and Wyre to write to Smith?

No — anyone may write to any MP. But MPs' offices prioritise their own constituents, and casework (benefits, immigration, council issues) is normally only taken up for residents of Lancaster and Wyre. If you live elsewhere, find your own MP at members.parliament.uk, or write to Smith specifically about her role in an issue that concerns you.

Will Cat Smith actually read and reply to my letter?

Constituent post is logged and answered by Smith's staff, and issues raised repeatedly get flagged to the MP directly — a personal letter carries more weight than a form email or a petition signature. Include your return address (PostPal prints yours automatically) so the reply has somewhere to go.

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