Accelerated Possession Procedure: Section 21, Defences, Enforcement

The accelerated possession procedure is a paper-based court route that lets a landlord in England obtain a possession order without a hearing, provided the tenancy is an assured shorthold tenancy and a valid Section 21 notice has been served. Since 1 May 2026, no new Section 21 notices can be served. The procedure now survives only as a transitional tool: a landlord with a Section 21 notice served before 1 May 2026 can still use it, but the court claim must be filed by 31 July 2026.¹

Who Can Still Use It

Three conditions have to line up. The tenancy must be an assured shorthold tenancy under the Housing Act 1988; an ordinary assured tenancy does not qualify.² A valid Section 21 notice must have been served, and the full notice period of at least two months must have expired without the tenant leaving. And the landlord cannot ask for rent arrears as part of the application. Recovering unpaid rent means either a standard possession claim or a separate debt action; the accelerated route is for the property only.³

The transitional dates deserve a close look. For notices served before 1 February 2026, the landlord originally had six months from the date of service to begin proceedings. For notices served between 1 February and 30 April 2026, the hard cutoff is 31 July 2026, no matter when the notice period ends. If the earliest date proceedings could start falls on or after 1 August 2026, the notice is invalid for court purposes, and any claim filed from that date onward using a Section 21 notice will almost certainly be dismissed.¹

If you are inside the window and have not filed yet, time is the scarce resource. Courts do not process claims instantly, and any small administrative problem can push a filing past the deadline.

What Makes the Section 21 Notice Valid

Because the procedure is paper-only, the notice has to be technically clean. A flawed notice means a refused order and months of wasted time.

Form and Notice Period

The notice must use the prescribed Form 6A, or a document containing exactly the same information.⁴ It must give the tenant at least two months before the date they are required to leave, and proceedings must be issued within the transitional limits above.¹

Deposit Protection

If the tenant paid a security deposit, it must have been protected in a government-approved scheme within 30 days of receipt. The deposit must still be protected when the Section 21 notice is served, and the tenant must have received the scheme’s prescribed information. Any slip here invalidates the notice.

Safety and Information Documents

The tenant must have been given a valid gas safety certificate that was in force before the tenancy began, a current Energy Performance Certificate, and the latest version of the government’s How to Rent guide. If any one of these was missing, the Section 21 route is blocked.

Prohibited Fees and Licensing

Under the Tenant Fees Act 2019, a landlord who charged a banned fee or kept an unlawful holding deposit cannot serve a valid Section 21 notice until the money has been repaid or credited against the tenant’s rent or deposit with their agreement. And if the property is a house in multiple occupation that needs a licence, the Section 21 route is unavailable unless the property is licensed or an application is pending.

Filing the Claim

The application goes on Form N5B, available from GOV.UK or a local court office.⁵ It is filed with the county court covering the area where the property is located, and the fee is £404.³ The Ministry of Justice adjusts fees from time to time, so confirm the current amount before you file.

You will need to attach:

The tenancy agreement, including any renewals showing the current assured shorthold tenancy.
A copy of the Section 21 notice served on the tenant.
Proof of service, typically a completed Form N215 certificate of service showing the date, method, and address of service.⁶
The gas safety certificate provided to the tenant, valid at the start of the tenancy.
A current Energy Performance Certificate.
Evidence that the deposit is in an approved scheme and that the prescribed information was served.
Proof that the How to Rent guide was given to the tenant.

Form N215 is worth extra care. Sloppy service evidence is one of the most common reasons claims fail. The form asks for the exact date of service, the deemed date of service (which depends on the method used), the recipient’s name, and a signed statement of truth. First-class post, for example, gives a deemed service date of the second business day after posting. Miscalculating that date can sink an otherwise solid claim.

What Happens After You File

Once the court accepts the application, it posts a copy to the tenant. The tenant then has 14 days from the deemed date of service to file a defence on Form N11B.²⁷ If no defence arrives in that window, the landlord can ask the court to move to a paper decision.

From filing to a possession order typically takes around nine weeks, though workloads vary. Courts in London and the South East tend to run slower.

A judge reviews the N5B, the supporting documents, and any defence. The decision turns entirely on whether the paperwork proves the landlord met every legal requirement. There is no chance to explain away a missing certificate or a miscalculated service date in person.²

If satisfied, the judge issues a possession order giving the tenant 14 or 28 days to leave. Where the tenant shows exceptional hardship, that period can be extended to up to 42 days.⁸ A written copy of the order is posted to both parties. If the paperwork is defective or a tenant raises a valid defence, the judge can dismiss the claim or send it to a hearing, which converts the case into something closer to a standard possession claim and adds weeks or months.

The Defences That Usually Succeed

Tenants rarely need to argue they have a right to stay forever. They just need to show the landlord failed a procedural requirement. The reliable paperwork defences include:

An invalid Section 21 notice: wrong form, less than two months, or served outside the transitional window.
A deposit not protected within 30 days, or prescribed information never served.
No gas safety certificate in force at the start of the tenancy, or no EPC or How to Rent guide provided.
A prohibited fee under the Tenant Fees Act 2019 that was never repaid.
An unlicensed HMO where a licence is required.

These work because the judge has no discretion on most of them. If the deposit was not protected, the notice is invalid as a matter of law. One missed box on a landlord’s compliance checklist can lose the whole claim.

Enforcement if the Tenant Stays

A possession order is not self-executing. If the tenant stays past the date in the order, the landlord has to apply for enforcement, and the choice between the two routes usually comes down to speed.

County Court Bailiffs

The standard route is Form N325, requesting a warrant of possession from the county court.⁹ The fee is around £140. Once authorised, county court bailiffs set an eviction date and give the tenant at least two weeks’ notice before attending. On the day, they can remove occupants and secure the property. The drawback is the queue: in busy areas, 13 to 20 weeks can pass between filing and the actual eviction.

High Court Enforcement Officers

The faster route is to transfer the possession order to the High Court for enforcement by a High Court enforcement officer. Form N293A asks the county court to certify the judgment and issue a writ of possession; the claim itself stays in the county court, and only the enforcement moves up.¹⁰ The court application for the writ typically takes 10 to 12 weeks, after which the officer must give the occupants at least 14 days’ notice before attending. High Court officers often act more quickly once the writ is in hand. Costs are higher, so this route pays off mainly where the bailiff queue is long or where a few weeks of lost rent would outweigh the extra fees.