How to write to Stephanie Peacock, MP for Barnsley South

To write to Stephanie Peacock, a Labour MP for Barnsley South, address your letter to Stephanie Peacock 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

Stephanie Peacock 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

  • Stephanie Peacock is a Labour MP for Barnsley South.
  • Write to Stephanie Peacock 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 Peacock's staff can confirm you live in Barnsley South. 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 Stephanie Peacock'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 Stephanie Peacock'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 Stephanie Peacock'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 Barnsley South. 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 Stephanie Peacock'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 Stephanie Peacock's mailing address?

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

Do I need a stamp to write to Stephanie Peacock?

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 Barnsley South to write to Peacock?

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 Barnsley South. If you live elsewhere, find your own MP at members.parliament.uk, or write to Peacock specifically about her role in an issue that concerns you.

Will Stephanie Peacock actually read and reply to my letter?

Constituent post is logged and answered by Peacock'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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