For years, Section 21 was the landlord's safety net — no reason needed, just notice and a fixed timeline. From 1 May 2026, that option is gone entirely for private assured tenancies. Every tenancy is periodic from the start, and ending one now means proving a specific ground.
What Replaces It
A landlord seeking possession must identify and prove an applicable statutory ground and normally serve a section 8 notice using the current Form 3 before commencing court proceedings. Critically, a tenant does not have to leave merely because a notice expires — if they remain, the landlord normally needs a court possession order and, where necessary, lawful enforcement. Self-help eviction or harassment creates serious legal risk regardless of how clearly the ground applies.
The Grounds Landlords Will Actually Use
Different situations route to different grounds, each with its own evidence requirements. A landlord or close family member intending to occupy falls under Ground 1, requiring proof of ownership, genuine intended occupation, and timing conditions. A genuine intention to sell falls under Ground 1A, with similar ownership and intent evidence, plus a restricted period afterward. Serious rent arrears route to Ground 8 or related arrears grounds, needing a full rent schedule, due dates, and payment history. Persistent late payment falls under Ground 11, which needs longitudinal payment history and communications rather than a single missed payment. Anti-social behaviour, breach of tenancy obligations, and tenant-caused property deterioration each have their own grounds — 12, 13, 14 — with evidence focused on incident chronology, warnings, and inspection records respectively.
The Restriction After Selling or Moving In That Catches People Out
Grounds 1 and 1A carry a genuinely important condition: current enforcement guidance identifies a 12-month restricted period after using either ground, during which prohibited reletting or remarketing can expose a landlord to serious enforcement consequences unless an exception applies. Using ‘I want to sell’ or ‘family wants to move in’ as a ground and then relisting the property to a new tenant shortly afterward is exactly the pattern this restriction targets.
The Sequence That Actually Matters
Before serving anything: establish why possession is genuinely required, match that reason to the current correct statutory ground, confirm whether it is mandatory or discretionary, check every timing restriction and precondition, and assemble evidence for every element of the ground before serving the current Form 3. If a notice was validly served before 1 May 2026, transitional rules can apply — do not mix pre- and post-reform grounds and forms, and check current government guidance for the specific notice and court timetable involved.
Where to Go From Here
The Complete Renters' Rights Act 2025 Compliance Blueprint includes the full possession grounds decision framework, a possession evidence checklist, a pre-notice compliance audit, and a complete case file index for building a possession claim that holds up.
Get The Renters' Rights Act 2025 Compliance Blueprint →
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This article is for educational and informational purposes only and does not constitute legal advice. Possession grounds, forms, and procedures are being actively updated — confirm current requirements on GOV.UK and seek professional advice before serving any possession notice.