Overview
From 1 May 2026, possession notices in England are governed by new rules under Phase 1 of the Renters' Rights Act 2025. Form 3A is the prescribed statutory form you must use to serve a possession notice on assured tenants.
Phase 1 is now in force. Using the wrong possession form could invalidate your notice. The SunClause toolkit covers all 37 grounds, workflows, and deadlines in one place.
Get compliant for £9.99 →
Key Changes Under Phase 1
Possession Grounds
Phase 1 retains all 37 possession grounds but adds critical changes:
- Many grounds now require prior written notice before you can serve Form 3A
- Some grounds have new protected periods during which possession cannot be sought
- Grounds relating to landlord's own use are restricted in scope
Notice Periods
Notice periods vary depending on the ground:
- 2 weeks' notice: Most mandatory grounds (e.g., non-payment of rent after written warning)
- 2 months' notice: Some discretionary grounds and grounds requiring prior notice
- No notice: Some grounds (e.g., antisocial behaviour in certain circumstances)
Critical: Prior Written Notice Required
Many grounds now require you to give written notice before serving Form 3A. If you fail to give prior notice where required, your possession claim may be invalid. This is a major change from pre-May 2026 law.
Step-by-Step: Serving Form 3A
Serving a valid Form 3A requires careful preparation across seven stages: identifying the correct possession ground, checking prior written notice requirements, gathering evidence, completing the form correctly, serving it by a valid method, allowing the notice period to expire, and applying to the court if the tenant does not leave.
Each stage has specific legal requirements. Getting any one wrong can invalidate the entire notice and cost you months.
The toolkit includes the complete Form 3A workflow
Step-by-step instructions for each stage, evidence checklists for every ground, prior written notice templates, service record forms, and a decision flowchart for choosing the right possession ground.
Get the Toolkit — £9.99
Protected Periods and Restrictions
First 6 Months
You cannot seek possession during the first 6 months of a fixed-term tenancy unless the ground is:
- Antisocial behaviour
- Illegal activity
- Non-payment of rent (in limited circumstances)
Landlord's Own Use
Grounds based on landlord's own use (Ground 1) are now restricted:
- Not available for the first 6 months of a tenancy
- Notice must be given in the first 4 months of a fixed-term tenancy
- Subject to new rules on "substantially rebuild" and other limitations
Common Mistakes to Avoid
- Wrong form: Using an old notice instead of Form 3A
- Missing prior notice: Serving Form 3A without the required warning letter
- Insufficient notice period: Allowing less than the required notice
The toolkit covers all common mistakes with worked examples and decision trees.
Key Dates
- 1 May 2026: Phase 1 took effect. Form 3A is now the prescribed form.
- Prior notice window: Send warning letters at least 2 weeks before Form 3A (if required)
- Form 3A service: Must be served with minimum notice (2 weeks to 2 months depending on ground)
- Court application: After notice period expires, apply to court for order
Use the Toolkit
The SunClause Phase 1 toolkit includes a complete table of all 37 possession grounds, notice periods, prior-notice requirements, and evidence checklists for each ground.
Phase 1 is live — are you compliant?
Phase 1 is in force. One mistake with forms or notice periods could cost you months. Our toolkit includes detailed Form 3A workflows, all 37 grounds with evidence checklists, and a decision tracker.
Get Compliant for £9.99 →
Sources
- Renters' Rights Act 2025 (c. 26)
- MHCLG Implementation Roadmap
- Housing Act 1988 (as amended)
- County Court procedure rules
Disclaimer: This guide is based on the Renters' Rights Act 2025 and government guidance as at June 2026. It is not legal advice. For advice on your specific situation, consult a solicitor. This guide does not cover all grounds, exceptions, or procedural requirements.