Section 173 Notice Wales: Why Deposit Protection Must Come First

What Section 173 Actually Does

Section 173 of the Renting Homes (Wales) Act 2016 is the no-fault route for ending a periodic standard occupation contract. It lets a landlord give the contract-holder six months' written notice without needing a ground for possession, and it cannot be served at all during the first six months of the contract.

But Section 173 comes with prerequisites. One of the strictest sits in Section 177 of the same Act, and it concerns deposit protection.

The Section 177 Block

Under Section 177, a landlord cannot serve a valid Section 173 notice if any of the following are true:

• The deposit is not held in an authorised scheme (DPS, MyDeposits, or TDS)
• The initial requirements of the scheme were not completed within 30 days of receiving the deposit
• The required information under the Renting Homes (Deposit Schemes) (Required Information) (Wales) Regulations 2022 has not been provided to the contract-holder and any third-party payer
• A prohibited payment was taken and has not been refunded

If any of those conditions exist when the notice is served, the notice is void. The contract-holder can challenge it in court.

Late Protection Does Not Fix the Problem

A common misconception is that protecting the deposit late — registering it with a scheme after the 30-day window has closed — cures the breach. It does not. The statutory deadline runs from the day the deposit is paid. Missing it is a historical breach that late registration cannot undo.

The County Court evaluates whether the landlord complied within the original 30-day window. If the answer is no, the Section 173 notice fails regardless of the deposit's current protection status.

How to Cure the Breach

The route to restore the right to serve a Section 173 notice after a deposit protection failure is to return the deposit in full, or the remaining balance after agreed deductions, to the contract-holder. Once the money is back in the contract-holder's hands, the landlord has no outstanding deposit obligation to breach, and the Section 177 block lifts.

If the landlord still wants a protected deposit going forward, they would need to agree a new deposit with the contract-holder, protect it within 30 days, and serve fresh required information — all before serving a Section 173 notice.

The 1x to 3x Penalty Exposure

Separately from the notice block, the contract-holder has the right to apply to the County Court under Section 45 for a compensation order. If the court finds non-compliance, it must order the landlord to pay between one and three times the deposit value. The court has no discretion to dismiss the claim — the only question is the multiplier, which depends on the landlord's culpability and conduct.

This means a landlord who failed to protect a £1,200 deposit faces a minimum £1,200 penalty and a maximum £3,600 penalty, plus the loss of the Section 173 notice route.

Practical Sequence for Compliance

The safe order is:

1. Receive the deposit and note the exact receipt date
2. Register it with an authorised scheme within 30 calendar days
3. Serve the required information (the scheme's information pack, populated with all the details required by S.I. 2022/250) on the contract-holder and any third-party payer within the same 30 days
4. Keep proof of delivery — a signed receipt, tracked post confirmation, or email with read receipt

Only after all four steps are complete can a Section 173 notice be validly served. Even then, the earliest service date is six months after the occupation contract started.

The Tenancy Deposit Protection in Wales guide walks through the 30-day compliance sequence and includes a proof-of-service log designed to survive a County Court challenge.

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