What Was a Section 21 Notice? Explaining No-Fault Eviction to Tenants

A Brief History of Section 21

Section 21 of the Housing Act 1988 was introduced as part of a package of measures designed to encourage private landlords back into the rental market following decades of rent control that had made private letting unattractive. The idea was simple: give landlords a reliable, straightforward way to recover their property at the end of a tenancy, without needing to prove fault on the tenant's part.

For over 35 years, Section 21 defined the nature of private renting in England. It gave landlords certainty — and gave tenants uncertainty.

How Section 21 Worked

A Section 21 notice was a written notice requiring the tenant to vacate the property. The key features were:

• **No reason required.** The landlord did not have to give any reason for wanting the tenant to leave.
• **Short notice period.** Two months' notice was all that was required after the end of a fixed term, or at any time during a periodic tenancy.
• **Near-automatic court order.** If the tenant did not leave by the notice date and the landlord applied to court, the judge had no discretion — if the notice was valid and the conditions were met, the court had to grant possession.

A tenant could be a model occupant who had paid on time for years, maintained the property impeccably, raised no complaints, and been a considerate neighbour — and still receive a Section 21 notice with two months to find a new home.

The Scale of Section 21 Use

At its peak, over 5,000 Section 21 notices were being issued every month in England. Research by Generation Rent and Shelter found that a significant proportion were "retaliatory" — served after a tenant had complained about disrepair or asked for a rent reduction. Because no reason had to be given, it was almost impossible to prove retaliation.

The human cost was substantial. Section 21 was the single biggest legal cause of family homelessness in England. Local authority data consistently showed that "end of private rented tenancy" — overwhelmingly driven by Section 21 — was the leading reason for homelessness applications.

Why Section 21 Was Abolished

The Renters Reform Bill — which became the Renters Rights Act 2025 — committed to abolishing Section 21 as its central measure. The case for abolition rested on several pillars:

**Security:** Tenants could not make long-term plans, invest in their homes, or put down roots without the constant fear of a Section 21 notice.

**Power imbalance:** The no-fault ground gave landlords disproportionate power in any negotiation — over repairs, rent, or conditions. Tenants who complained risked eviction.

**Homelessness:** The evidence was clear that Section 21 was a major driver of homelessness, with particular impact on families and those on lower incomes.

**International comparison:** Most comparable countries — Germany, the Netherlands, France, Scotland — had moved away from no-fault eviction years earlier, with no catastrophic effect on the supply of rental housing.

What Replaced Section 21?

Under the Renters Rights Act 2025, landlords can only end a tenancy by establishing one of the specific grounds in Schedule 2 of the Housing Act 1988. New grounds were added — including a genuine sale ground (Ground 1A) and a moving-in ground (Ground 1B) — to ensure landlords have workable routes to recover their property for legitimate purposes.

The key change is that every possession must now be justified. A landlord who simply wants a tenant out for convenience, to relet at a higher rent, or as a retaliatory response to a complaint, has no legal mechanism to do so.

The Transitional Period

When the Renters Rights Act came into force, existing tenancies on legacy assured shorthold agreements were subject to a transitional period. During this period, landlords with existing tenancies could continue to use Section 21 under the old rules for a defined time.

By 2026, the transitional period has ended for the vast majority of tenancies in England. All tenancies now operate under the new periodic tenancy regime.

If You Received a Legacy Section 21 Notice

If you received a Section 21 notice during the transitional period, it may still be in play. However, many historical Section 21 notices were technically invalid. A Section 21 notice was invalid if:

• The deposit was not protected in a government-approved scheme within 30 days
• The Prescribed Information about deposit protection was not served
• The landlord had not provided a valid Gas Safety Certificate at the start of the tenancy (or annually)
• The landlord had not provided the current EPC
• The landlord had not provided the government's How to Rent guide
• The notice was on the wrong form or contained errors
• The property was subject to an improvement notice from the council

If any of these applied, the notice has no legal effect. Call Shelter on 0808 800 4444 for free advice on checking the validity of any notice you have received.

The Lasting Significance

The abolition of Section 21 is the most significant change to private renting in England since the Housing Act 1988 itself. It shifts the fundamental power dynamic in the landlord-tenant relationship and gives private renters the security to treat their rented home as a genuine home — not a temporary arrangement that can be ended on a whim.