Why it matters
What Section 21 Notice means for a landlord
Section 21 was the operational backbone of private letting for 36 years, "no-fault", fast, paper-based. Its removal under RRA 2025 is the single biggest change to end-of-tenancy mechanics. Landlords used to a pre-emptive Section 21 as a portfolio safety net have to rebuild their operating model around ground-specific Section 8 claims, which is a different skillset and a different document trail.
Worked example
How it plays out
A landlord in Brighton served a Section 21 notice on 15 April 2026, before abolition. The tenant stayed, and the landlord issued an accelerated possession claim on 5 July, inside the 31 July 2026 deadline for claims on pre-May notices. The claim went ahead under the transitional rules and a possession order followed in August. Had the notice been served on 2 May, or the claim started in August, the route would not have been available and the landlord would have needed a Section 8 ground.
Common mistakes
Where landlords go wrong
- 01Drafting a Section 21 notice after 1 May 2026, which has no effect.
- 02Assuming a notice served before 1 May 2026 can still start a claim: the deadline was 31 July 2026.
- 03Keeping an operating manual that still refers to Section 21.
- 04Confusing a claim already started under the transitional rules with a right to start new ones.
What to do
A short checklist
- Replace Section 21 templates with Section 8 templates by ground.
- Learn the grounds you are most likely to need, such as 1, 1A, 8, 10, 11 and 14.
- Update any agent or assistant on the change.
- For a Section 21 claim already issued, follow the court’s directions; unused notices are spent.
Sources
Checked against these sources on 16 September 2026. A guide to the rules in England, not legal advice: for a dispute or a possession claim, speak to a solicitor.