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Subject access request to your landlord or letting agent: the tenant walkthrough for pre-tribunal disclosure (UK GDPR, 2026)

The renter has had a Form 4A rent increase notice. They have decided to challenge it at the First-tier Tribunal. Their bundle is half-written. What they do not have - and what would meaningfully strengthen their case - is the landlord's own paperwork: the internal email where the agent told the landlord the increase was 'punchy but probably worth a try', the rent-comparison spreadsheet, the referencing report. The renter has a free, no-reason-needed legal right to ask for a copy of all of it - a subject access request under Article 15 of the UK GDPR. Five document categories, the letter template, and how the disclosed pack lands in a tribunal bundle as exhibits 5 to 10.