Do non-residential SDLT rates apply when buying six flats under one freehold title?

Introduction

Buyers often ask whether Stamp Duty Land Tax (SDLT) must be charged at residential rates when a building contains several flats but is being bought under a single title. That question has become more important since Multiple Dwellings Relief (MDR) was abolished. In some cases, the answer is that the purchase can still be taxed at non-residential SDLT rates, which are usually lower than residential rates.

The key issue is not whether there is one title or several. The key issue is whether the transaction involves six or more separate dwellings.

The Question

A buyer is planning to purchase an investment property consisting of a converted building with six flats. The whole building is held under one freehold title, but each flat is said to be separate, self-contained and capable of independent living, with its own entrance and utilities. The buyer wants to know whether, despite the abolition of MDR, SDLT can be charged by reference to the rule for six or more dwellings rather than at standard residential rates on the full purchase price.

Nick’s Explanation

Nick’s view was that, based on the facts provided, a purchase of six self-contained flats in one transaction should fall within the rule for six or more dwellings and therefore be charged at non-residential SDLT rates.

In anonymised form, his explanation was:

“If you are purchasing six or more dwellings in a single transaction, you will be charged non-residential rates of stamp duty. If you are purchasing under a single title, but each apartment is a separate dwelling capable of independent day-to-day living, then you meet the requirements for purchasing six dwellings.”

He also explained that separate leases or separate titles are not required. What matters is whether each unit is genuinely a dwelling. He identified the usual indicators as follows:

• capable of independent day-to-day living
• physically separate
• self-contained, with its own access, kitchen, bathroom and utilities

Nick further suggested gathering supporting evidence, such as planning or building control records, photographs, utility arrangements, tenancy agreements and sales particulars describing the property as multiple flats.

The Law

The relevant SDLT rules are in the Finance Act 2003.

Schedule 4ZA, paragraph 5(1) provides:

“This Schedule does not apply to a transaction if the main subject-matter of the transaction consists of six or more dwellings.”

Schedule 4ZA is the part of the legislation dealing with higher rates for additional dwellings. If paragraph 5(1) applies, the transaction is taken outside that residential surcharge regime.

Section 55 of the Finance Act 2003 then governs the rate structure. Where the main subject-matter of the transaction consists of six or more dwellings, the transaction is generally treated as non-residential or mixed for rate purposes, so the non-residential SDLT bands apply rather than the residential bands.

The legislation does not require each dwelling to have its own Land Registry title. A single freehold title can still contain multiple dwellings. The legal question is whether what is being acquired consists of six or more “dwellings” in substance.

Whether a unit is a dwelling is a fact-sensitive question. The case law on dwellings often focuses on whether the unit is suitable for use as a single dwelling and capable of normal residential occupation. In cases involving condition or habitability, the threshold is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799. That means arguments that a unit is not a dwelling because it is uninhabitable or not suitable for use will now be harder to establish unless the defects are serious.

Analysis

The analysis usually works in four steps.

1. Identify the subject matter of the transaction.

   Here, the buyer is acquiring one freehold title. That does not end the enquiry. The next question is what that title actually contains.

2. Count the number of dwellings.

   If the building contains six separate flats, the issue is whether each flat is a dwelling in its own right. If each flat has its own living accommodation and can be occupied independently, that usually points strongly towards six dwellings.

3. Check whether each unit is genuinely self-contained.

   Relevant factors include separate access, its own kitchen and bathroom, separate utility arrangements, and practical ability to live there independently on a day-to-day basis. If those features are present, the fact that the whole building is on one title should not prevent the six-or-more rule from applying.

4. Apply the SDLT charging rule.

   If the main subject-matter of the transaction consists of six or more dwellings, the transaction is not charged at ordinary residential rates. Instead, non-residential SDLT rates apply.

That is why the abolition of MDR does not remove this separate rule. MDR was a relief that could reduce SDLT on purchases of multiple dwellings. The six-or-more-dwellings rule is different. It is not MDR. It is a separate statutory route under which the transaction is treated as non-residential for rate purposes.

One practical difficulty is evidential. Solicitors, lenders and HMRC may want to see clear proof that there are in fact six dwellings. If the building is a converted house, but the conversion is informal, incomplete or poorly documented, that can lead to hesitation. The stronger the evidence that the flats are separate dwellings, the stronger the SDLT position.

Outcome

If a buyer acquires a building under one title and that building genuinely contains six self-contained flats, the purchase can usually be charged at non-residential SDLT rates. Separate titles are not necessary. The important point is that there must be six or more true dwellings in one transaction.

So, in a case where each flat is independent and suitable for normal day-to-day living, the buyer is not relying on MDR. Instead, the buyer is relying on the statutory rule that a transaction involving six or more dwellings is treated as non-residential for SDLT rate purposes.

Practical Steps

• Check the physical layout of each flat and confirm that each one is self-contained.
• Gather evidence such as floor plans, planning permissions, building control records, photographs, utility meter details, tenancy agreements and marketing particulars.
• Ask the conveyancer to confirm in writing whether they accept that the transaction consists of six or more dwellings.
• If the conveyancer is unsure, consider obtaining a specialist SDLT opinion focused on whether the units are separate dwellings.
• Ensure the SDLT return is prepared on the basis of the actual facts and supported by documentary evidence.
• If any unit is said to be uninhabitable or not suitable for use as a dwelling, be aware that the threshold for that argument is now relatively high after Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

Conclusion

Buying six flats under one freehold title can still qualify for non-residential SDLT rates, even though MDR has been abolished. The decisive question is whether the transaction consists of six or more separate dwellings. If each flat is genuinely self-contained and capable of independent living, non-residential rates should usually apply.

Legal References Used

• Finance Act 2003, section 55
• Finance Act 2003, section 55(1B)
• Finance Act 2003, Schedule 4ZA, paragraph 5(1)
• Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799

This page was last updated on 22 March 2026.

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