Why it matters
What Mandatory Ground means for a landlord
Mandatory grounds give the most certainty, because the court must order possession if the ground is proved. Each still has its own evidence and notice period, and the landlord ground for selling or moving in has consequences after the notice: once a Ground 1 or 1A notice is served, the landlord must not let or market the property until 12 months after the earliest date the notice gives for court proceedings, and doing so is an offence with a penalty of up to £40,000. Choosing the ground that genuinely fits your situation is the most important decision in a Section 8 claim.
Worked example
How it plays out
Ahmed wants to sell his house in Wolverhampton, let on an assured periodic tenancy since 2024. He serves notice on Ground 1A, a mandatory ground, with four months’ notice. The tenant stays on, and at the hearing Ahmed produces the estate agent’s instructions and valuation. The judge accepts he intends to sell and must make a possession order. If the sale falls through, Ahmed still cannot let or advertise the house to rent until 12 months after the earliest court date in his notice.
Common mistakes
Where landlords go wrong
- 01Using Ground 1A without real evidence of a plan to sell.
- 02Giving the notice period for a different ground.
- 03Letting or marketing the property again inside the restricted period after a Ground 1 or 1A notice.
- 04Assuming a mandatory ground needs no proof at the hearing.
What to do
A short checklist
- Match your reason for possession to the exact wording of the ground.
- Gather the evidence the ground needs before serving notice.
- Check the notice period for that ground.
- For Ground 1 or 1A, diary the end of the letting and marketing restriction.
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.
