Appealing a Rent Increase in Wales: Your Rights and Next Steps

Rent, Deposits & Increases Wales published: June 29, 2025 Flag of Wales

If you rent your home in Wales and have received notice of a rent increase, you may feel uncertain about your rights and how to respond. Understanding the rental laws in Wales and the process for appealing a rent hike can help you protect your budget and ensure your landlord follows the correct procedure. This article explains, in clear terms, how to appeal a rent increase in Wales—including the official steps, relevant forms, and where to seek support.

Your Rights When Facing a Rent Increase in Wales

In Wales, the law that protects renters is the Renting Homes (Wales) Act 2016[1]. This Act sets rules about when and how your landlord can increase your rent and what options you have if you believe the increase is unfair.

  • Notice period: Landlords must give at least two months' written notice before raising your rent with a "section 13 notice" (Form RHW12).
  • Frequency: Rent can usually only be increased once in any 12-month period.
  • Right to appeal: If you think the new rent is too high, you can challenge it through an independent tribunal.

Knowing these basics helps you spot errors in your landlord’s approach and gives you confidence about your options.

How Rent Increases Must Be Proposed

To lawfully increase rent, your landlord must:

  • Serve you with a written notice—most likely using the official "Section 13 Notice of Rent Increase" (Form RHW12).
  • Give you at least two months’ notice before the new rent starts.
  • Not increase your rent more than once every 12 months.
If your landlord raises the rent without proper notice or the right form, the increase may not be valid. Always ask for the notice in writing.

Challenging a Rent Increase: The Appeals Process

If you believe your proposed rent increase is unfair, you have the right to appeal. The Residential Property Tribunal Wales handles rent disputes between tenants and landlords.

Action Steps to Appeal a Rent Increase

  • Step 1: Check the Notice
    The notice should be on the official Form RHW12: Section 13 Notice of Rent Increase.
    If not, the rent increase may not be legally enforceable.
  • Step 2: Gather Evidence
    Check similar properties in your area. Keep records of your rent and any maintenance issues. Evidence can support your appeal.
  • Step 3: Apply to the Tribunal
    You must apply before the new rent takes effect (within the notice period). Use the official tribunal application process to start your challenge.
  • Step 4: Complete the Application Form
    Use the Rent Assessment Application Form (from the Tribunal).
    Submit your form with supporting information on why you believe the rent is unfair.
  • Step 5: Attend the Tribunal (if required)
    You might be invited to a hearing, or the decision could be made based on written evidence.
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The Tribunal will consider:

  • Market rents for comparable homes in your area
  • The condition and location of your property

If the Tribunal finds the increase is too high, it can set a lower rent. If it agrees with your landlord, the proposed rent will apply. The Tribunal's decision is legally binding for both parties.

Key Official Forms for Rent Appeals in Wales

  • Section 13 Notice of Rent Increase (Form RHW12)
    Issued by your landlord—used to notify you of a proposed rent increase on a periodic standard contract. You cannot appeal an increase unless you receive this official form.
    Download Form RHW12 here.
  • Rent Assessment Application Form
    Used by you (the tenant) to apply to the Tribunal to challenge the proposed rent increase.
    For example, if you receive a Form RHW12 stating your rent will go up and you believe it's too high, submit this form to the Tribunal before the new rent starts.
    Get the Rent Assessment Application Form here.

What the Tribunal Considers

The Tribunal assesses what the "market rent" would reasonably be for your home, not based on your finances or your landlord's costs. It compares local properties and sets a fair rent if your appeal succeeds.

Remember: The Tribunal’s decision is final and binding for at least 12 months. Be sure your evidence is clear and based on local rent examples.

FAQ: Challenging Rent Increases in Wales

  1. How long do I have to appeal a rent increase in Wales?
    You must apply to the Residential Property Tribunal before the date the new rent is due to start, as shown on your section 13 notice.
  2. Will my landlord know about my appeal?
    Yes, your landlord will be informed and can respond to your application. Both sides present evidence to the Tribunal if needed.
  3. Can my landlord evict me for challenging a rent increase?
    It's illegal for a landlord to retaliate because you exercised your legal rights, but you are still protected by standard notice requirements under Welsh law.
  4. What happens if I do nothing when I receive a rent increase notice?
    If you don’t challenge the increase, the new rent will automatically take effect on the date specified in the notice.
  5. Do I need legal representation to appeal a rent increase?
    No, you can represent yourself in the Tribunal process, and the procedure is designed to be renter-friendly.

Need Help? Resources for Renters in Wales


  1. [1] See the Renting Homes (Wales) Act 2016 for comprehensive rules on rent increases and tenants' rights.
  2. Wales’ official rent tribunal: Residential Property Tribunal Wales
  3. Section 13 process and forms: Welsh Government Form RHW12

Key Takeaways:

  • You have the right to challenge unfair rent increases—know your options.
  • The Residential Property Tribunal Wales can set a fair rent and its decisions are legally binding.
  • Act quickly—appeal before the increase takes effect and use the correct official forms.
Bob Jones
Bob Jones

Editor & Researcher, Tenant Rights UK

Bob writes and reviews tenant law content for various regions. They’re passionate about housing justice and simplifying legal protections for renters everywhere.