Renters' Rights Act 2025, Phase 1 commencement
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England, Buy-to-Let, Sitting Tenants, RRA 2025, Due Diligence

Buying a Tenanted Property UK 2026, Landlord Due Diligence Guide

A complete guide for landlords buying property with sitting tenants in England 2026: what you inherit on completion, due diligence checklist, the impact of the Renters' Rights Act 2025, and routes to recovering possession.

11 min readUpdated 6 June 2026Last reviewed: 2 September 2026Buy-to-LetComplianceRenters' Rights ActSection 8
Written and reviewed by· Founder, LetSafe UKLast reviewed: 2 September 2026

Buying a rental property with existing tenants ('subject to tenancy') provides rental income from day one but requires careful due diligence. Under the Renters' Rights Act 2025 (in force from 1 May 2026), Section 21 no-fault eviction is abolished, recovering possession from sitting tenants now requires a valid Section 8 ground or negotiated surrender.

Key change: no Section 21

You cannot buy a tenanted property and immediately serve a no-fault notice to quit. Recovering possession now requires a Section 8 ground (rent arrears, breach of tenancy, etc.) or negotiated surrender. Ground 1A (sale) and Ground 1 (own occupation) both require the tenancy to have been in existence for at least 12 months.

What you inherit on completion

  • The existing tenancy agreement (as Periodic Assured Tenancy from 1 May 2026), you cannot unilaterally change terms
  • The existing rent level; any increase must follow Section 13 (Form 4A, 2 months' notice, once per 12 months maximum)
  • All landlord compliance obligations: gas safety, EICR, EPC, smoke/CO alarms, deposit protection, Information Sheet
  • Outstanding repair or disrepair obligations, including Awaab's Law damp/mould response duties
  • Any existing deposit, must be re-protected in your name within 30 days if the scheme requires it

Pre-exchange due diligence checklist

  • Tenancy agreement (confirm auto-conversion to Periodic Assured Tenancy)
  • 12-month rent statement and formal arrears certificate
  • Deposit scheme registration and Prescribed Information evidence
  • Current gas safety certificate, EICR, EPC
  • Smoke and CO alarm compliance evidence
  • Mandatory HMO, additional, and selective licensing status
  • Outstanding council enforcement notices or repair orders
  • Right to Rent check evidence
  • Information Sheet obligation status (served by 31 May 2026?)

Routes to recover possession

  • Ground 8 (rent arrears, mandatory): 3 months' rent arrears at notice and court hearing. No 12-month wait
  • Ground 1 (landlord or family to occupy, mandatory): 4 months' notice. Tenancy must have been in existence at least 12 months
  • Ground 1A (landlord intends to sell, mandatory): 4 months' notice. Tenancy must have been in existence at least 12 months. Re-letting prohibited for 12 months after vacancy
  • Negotiated surrender: Offer the tenant a cash incentive to vacate, lawful and often the quickest route to vacant possession
Primary sources

This page is drafted against the legislation below. Always check the current text of the law before acting.

Frequently asked questions

Can I immediately serve notice to quit on a sitting tenant after buying?+

No. Section 21 no-fault eviction was abolished on 1 May 2026. You can only recover possession through Section 8 grounds or negotiated surrender. Ground 1A (landlord intends to sell, note: you just bought, so Ground 1 for own occupation may be more appropriate) requires the tenancy to have been in existence for at least 12 months and 4 months' notice.

Am I liable if the seller failed to protect the deposit?+

Potentially yes. If the seller failed to protect the deposit or serve Prescribed Information, the tenant may have a compensation claim. On completion you may inherit this liability. Obtain confirmation of deposit compliance before exchange and factor any risk into the purchase price or require the seller to rectify compliance before completion.

Templates recommended in this guide

Put this guide into practice, get the Renters' Rights Act Transition Pack from the LetSafe shop, the regulation-current pack that matches this guide.

TransitionLS-E-130

Renters' Rights Act Transition Pack

For landlords who need to migrate existing ASTs onto the new regime. The single most-searched landlord product of 2026.

£39
See what’s inside
TenancyLS-E-001

Periodic Assured Tenancy Agreement

The default English tenancy since 1 May 2026. Periodic from day one, with the prescribed written statement of terms built in. Ships with the Form 4A rent-increase notice template and an Information Sheet delivery acknowledgement form so a buying landlord has every Phase-1 compliance document in one pack.

£29
See what’s inside
ComplianceLS-E-020

Landlord Annual Compliance Checklist

Annual walk-through of every compliance touchpoint: gas, electrical, EPC, smoke/CO, Right-to-Rent, deposit, licensing, database registration.

£19
See what’s inside

Found a gap or disagree with something?

Reply to any LetSafe email or write to Richard@letsafeuk.co.uk. We rewrite guides when we get something wrong, the sooner we hear, the sooner we fix it.

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