Ground 12 Covenant Breach Possession UK 2026 — Pets, Subletting, Business Use and the Landlord's Discretionary Possession Ground

What is Ground 12 and what breaches trigger it?

Ground 12 applies where any obligation of the tenancy — other than the obligation to pay rent — has been broken or not performed. The obligation must be one in the tenancy agreement (express) or implied by law:

• Keeping a pet in breach of a no-pets clause: A no-pets clause (or a clause requiring the landlord's written consent before keeping a pet) is one of the most common covenants breached. Where the tenant has a dog, cat, or other animal without consent, Ground 12 is the correct ground. Note: from 1 June 2024, the Renters (Reform) Act 2019 provisions on pets (requiring landlords not to unreasonably refuse a written request to keep a pet) have been superseded by the Renters' Rights Act 2025, which contains its own pet consent provisions. However, a tenant who keeps a pet without first making the required written request and obtaining consent (or disputing a refusal) remains in breach of a covenant that may support Ground 12
• Subletting or assigning without consent: Where the tenancy prohibits subletting or assignment without the landlord's written consent, a tenant who sub-lets to a third party or puts the property on Airbnb without consent is in breach. Evidence — screenshots of the letting listing, inspection reports showing different occupiers, post addressed to unknown persons — supports Ground 12
• Using the property for business purposes: A residential-use-only covenant prevents the tenant from running a business from the property. Evidence of business use — delivery vehicles, clients attending the property, business signage, planning enforcement notices — can support Ground 12. Note: many tenants now work from home, which is not in itself a breach if the use is personal and not business-generating traffic or nuisance
• Unauthorised structural alterations: Where the tenancy requires the landlord's consent before making structural alterations, a tenant who knocks down a wall, extends the property, or converts a room without consent breaches this covenant. Ground 12 may apply alongside a repair or reinstatement claim
• Failure to allow access for inspections or repairs: Where the tenancy agreement contains an access covenant and the tenant persistently refuses to allow the landlord or contractors access (having been given proper notice), this may constitute a breach for Ground 12 purposes

Notice requirements for Ground 12 under the Renters' Rights Act 2025

Under the RRA 2025 (in force 1 May 2026), the prescribed possession notice replaced the old Section 8 notice. The 2-week minimum notice period for Ground 12 is preserved, but the prescribed form and content requirements have changed:

• 2-week minimum notice period: The prescribed possession notice for Ground 12 must give at least 2 weeks' notice before the landlord can apply to court. A notice giving fewer than 14 days is invalid and the claim will fail. The 2-week period runs from service of the notice on the tenant — so add postal service time (2 additional business days) if served by first-class post
• Particulars of the breach: The notice must specify the ground relied on (Ground 12) and the particulars of the breach in enough detail for the tenant to understand what is alleged. A vague reference to 'breach of tenancy obligations' is insufficient — specify which clause is breached, how it has been breached, and on what dates (or over what period). A defective particulars section can invalidate the notice
• Reserve the right to rely on the breach even if remedied: Include a statement in the notice that the landlord reserves the right to rely on the breach even if the tenant remedies it before the hearing. Without this reservation, the court may decline to make an order if the breach has been remedied by the hearing date (though the landlord can still argue that the past breach demonstrates the tenant is likely to breach again)
• Pre-notice warnings — serve these first: Before issuing the possession notice, serve a formal written warning on the tenant specifying the breach and requiring remedy within a reasonable time (typically 14 days for a continuing breach). This demonstrates the landlord acted proportionately and gave the tenant an opportunity to comply. The warning letter is important evidence at the reasonableness stage
• Proof of service: Keep evidence that the notice was served — a witness statement of personal service, or a certificate of first-class posting. The court will require this evidence if the tenant denies receipt

Evidence required for a Ground 12 possession claim

Because Ground 12 is discretionary, the landlord must both prove the breach and persuade the court that it is reasonable to make a possession order. Strong, contemporaneous evidence is essential on both counts:

• The tenancy agreement: Produce the signed tenancy agreement and identify the specific clause that has been breached. The court must see the obligation clearly set out before it can find a breach. If the tenancy agreement is unsigned (or signed only by some parties), address this in the witness statement
• Evidence of the breach itself: Inspection reports with photographs (timestamped); screenshots of Airbnb or SpareRoom listings if subletting without consent; photographs of the pet in the property; photographs of unauthorised alterations; planning enforcement notices or local authority records; correspondence from neighbours about the business use or unusual activity; professional survey reports on unauthorised structural works
• Written warnings and the tenant's response: Produce copies of written warnings sent to the tenant before the possession notice, the tenant's response (or non-response), and any follow-up correspondence. This record demonstrates that the breach was drawn to the tenant's attention, they were given an opportunity to remedy it, and they failed or refused
• Continuing breach vs remedied breach: Where the breach continues at the hearing date, the court is more likely to consider it reasonable to make an order. Where the breach was remedied before the hearing, the court may decline to make an outright order — but may make a suspended possession order, which hangs over the tenant if they breach again. Always present evidence of any history of similar breaches if this is not the first occasion
• Suspended possession order: In many Ground 12 cases the court will make a suspended possession order rather than an outright order — the order is suspended on condition that the tenant complies with the covenant. If the tenant breaches again, the landlord can apply to enforce the suspended order without issuing a fresh notice or possession claim. This is often a proportionate outcome for a first breach

Ground 12 vs Ground 14 — choosing between covenant breach and anti-social behaviour

Where a tenant's breach of covenant also involves conduct that affects neighbours or amounts to nuisance, both Ground 12 (covenant breach) and Ground 14 (anti-social behaviour) may be available. Understanding the differences helps the landlord choose the most effective route — or plead both:

• Ground 14 (ASB) — immediate court access from the notice date: Under the RRA 2025, a Ground 14 possession notice can be served and the landlord may apply to court immediately from the date the notice is served — there is no minimum notice period to wait before issuing proceedings. This gives Ground 14 a significant speed advantage where the ASB is serious and ongoing. Ground 12 still requires a 2-week wait after service before proceedings can be issued
• When only Ground 12 applies — purely contractual breaches: Where the breach is a purely contractual matter with no ASB dimension (a subletting clause breach, a pets clause breach, a business use clause breach, an alteration clause breach), only Ground 12 is available. Ground 14 requires nuisance, annoyance, criminal conduct, or similar — a tenant with a cat in breach of a no-pets clause is not in itself ASB
• When both apply — noise covenant breach that is also nuisance: Where the tenant is playing loud music in breach of a quiet enjoyment or noise covenant AND the noise causes nuisance to neighbours, both Ground 12 (covenant breach) and Ground 14 (ASB — nuisance or annoyance to neighbours) can be pleaded in the same possession notice. Pleading both increases the landlord's options: the Ground 14 provision allows immediate court access; the Ground 12 element supports the overall evidence of the tenant's conduct
• Reasonableness — both grounds require it: Both Ground 12 and Ground 14 are discretionary. For both, the court must be satisfied it is reasonable to make a possession order in all the circumstances. Evidence of repeated warnings, documented breach history, impact on neighbours, and the landlord's proportionate response are all relevant to the court's assessment of reasonableness under both grounds

Frequently asked questions