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What is a Section 146 notice and how does lease forfeiture work?

Written by Barrister Connect | Jun 4, 2026 7:50:32 AM

A Section 146 notice is the first formal step a landlord can take to forfeit a lease for breach. If you are a leaseholder served with a Section 146 notice, you have important rights and a limited time to act. If you are a freeholder considering forfeiture, the procedure must be followed precisely or the right to forfeit can be lost.

This guide explains what a Section 146 notice is, what it must contain, how leaseholders can respond and how relief from forfeiture works.

What is a Section 146 notice?

Section 146 of the Law of Property Act 1925 sets out the requirements before a landlord can forfeit a lease for breach of covenant (except for breach of the covenant to pay rent, which has its own procedure).

The notice must:

  • Specify the breach complained of
  • If the breach is capable of remedy, require the tenant to remedy it
  • Where appropriate, require the tenant to pay compensation

The notice must give the tenant a reasonable time to comply before the landlord can take further steps.

When is Section 146 used?

Section 146 notices are typically used for:

  • Breach of the repairing covenant
  • Unauthorised alterations
  • Use of the property in breach of user covenants
  • Unauthorised subletting or assignment
  • Breach of the covenant against nuisance
  • Failure to pay service charges (though the procedure is different)

For breaches of the covenant to pay rent, the landlord does not need to serve a Section 146 notice. The procedure is different and involves the rent itself becoming forfeit.

What the notice must contain

To be valid, a Section 146 notice must:

Identify the breach

The notice must specify what the breach is. Vague references are not enough. The notice should identify:

  • The clause of the lease that has been breached
  • The specific facts constituting the breach
  • Where appropriate, the period during which the breach occurred

Require remedy where appropriate

If the breach can be remedied, the notice must require the tenant to remedy it. If the breach cannot be remedied (for example, a one-off act of nuisance), the notice need only specify the breach.

Allow a reasonable time

The tenant must be given a reasonable time to remedy. What is reasonable depends on the breach. A few weeks for minor repairs may be enough; major works may need months.

Require compensation where appropriate

If the landlord wants compensation, the notice should say so.

What happens if the notice is invalid?

If the notice is invalid, the landlord cannot proceed to forfeit. The notice must be re-served correctly. Common defects that invalidate notices include:

  • Failure to specify the breach with sufficient particularity
  • Failure to require remedy where the breach is remediable
  • Failure to give reasonable time
  • Confusion about whether the breach is being treated as remediable

Leaseholder response to a Section 146 notice

Read the notice carefully

Understand exactly what is alleged. Look at the lease to see whether the alleged breach falls within the relevant covenant.

Take advice quickly

Forfeiture has serious consequences. Specialist advice early is essential.

Consider whether the breach can be denied

If the landlord's allegations are not accurate, respond setting out the position. Provide evidence where available.

Consider whether the breach can be remedied

If there has been a breach but it can be put right, doing so quickly avoids forfeiture. Document the steps taken.

Consider applying for relief preemptively

In some cases, applying to the court for a declaration on the validity of the notice can be useful.

Make payments without prejudice

If service charges or other sums are claimed, paying without prejudice while disputing the underlying issue can protect against forfeiture.

How forfeiture happens

Forfeiture (also known as re-entry) can happen in one of two ways:

By proceedings

The landlord issues a claim for possession in the County Court. This is the more common route for residential property.

By peaceful re-entry

The landlord physically re-enters the property. This is generally not available for residential property occupied as a dwelling because of the Protection from Eviction Act 1977. For commercial property, peaceful re-entry can be used.

Relief from forfeiture

Even after forfeiture, the leaseholder can usually apply to the court for relief from forfeiture. The court has wide discretion to grant relief on terms that may include:

  • Remedying the breach
  • Paying compensation
  • Paying the landlord's costs
  • Other conditions appropriate to the case

Relief is granted in most residential cases where the breach is remediable and the leaseholder is willing and able to put matters right.

The time limits for relief

Where forfeiture is by proceedings

The court can grant relief at any stage of the proceedings or after the forfeiture order, subject to specific time limits in different scenarios. The classic position is that relief can be granted up to six months after the landlord has recovered possession.

Where forfeiture is by peaceful re-entry

The time limits are different and depend on the type of breach. Relief should be applied for as soon as possible.

The leaseholder's options after forfeiture

Apply for relief

The standard route. The leaseholder asks the court to restore the lease on terms.

Challenge the validity of the forfeiture

Where the Section 146 notice was defective or the procedure was not followed.

Negotiate with the landlord

Many forfeiture cases settle without final orders. The leaseholder remedies the breach and pays compensation, and the lease is restored.

Special protections for service charge disputes

Where the breach is non-payment of service charges, additional protections apply. The landlord cannot forfeit unless:

  • The service charge has been agreed by the leaseholder or determined by a court or tribunal
  • The amount is for £350 or more, or has been outstanding for more than three years
  • 14 days' notice has been given (a separate notice from the Section 146 notice)

These protections are set out in section 81 of the Housing Act 1996 and section 167 of the Commonhold and Leasehold Reform Act 2002.

Common mistakes by leaseholders

Ignoring the notice

Section 146 notices set a time clock running. Ignoring them is the worst response.

Not taking advice

The procedure is technical. Self-help often leads to making the position worse.

Refusing to remedy a clear breach

Where there has been a genuine breach, refusing to remedy it for principle rather than substance usually leads to forfeiture proceedings.

Failing to pay rent and service charge during dispute

Continuing payment under protest protects the leaseholder's position much better than non-payment.

Common mistakes by landlords

Inadequate Section 146 notice

Drafting the notice without legal advice often produces defective notices.

Not allowing reasonable time

Setting an unreasonable deadline can invalidate the notice.

Treating remediable breaches as irremediable

Where a breach is remediable, the notice must require remedy.

Forfeiting peacefully where the property is residential

This is a criminal offence as well as being ineffective.

Mortgagee protection

Where there is a mortgage on the lease, the mortgagee may also apply for relief from forfeiture. Lenders are usually keen to protect their security. Many forfeiture proceedings involve the mortgagee paying off the breach and recovering the cost from the leaseholder.

When to take legal advice

Section 146 notices and forfeiture proceedings are technical and the consequences can be severe (loss of the lease and the equity tied up in it). Both leaseholders served with notices and landlords considering forfeiture should take specialist advice.

A direct access barrister with property and leasehold experience can advise on the validity of the notice, the merits of any defence or relief application, and represent you at any hearing.

Speak to someone who handles cases like this

If you have a hearing coming up or want a clear view of your options, a direct access barrister can usually advise quickly and on a fixed fee. Contact our team with a brief outline of your case and we will arrange a quote.