Council Tax Premium Major Repairs — Why Class M Doesn't Apply to Furnished Second Homes

You've bought a second property that needs a new roof, rewiring, and a damp course before anyone could live in it. The builder is on site. The scaffolding is up. Surely there's a council tax exemption for properties undergoing major repairs?

There is a premium exception — Class M of the Council Tax (Prescribed Classes of Dwellings and Consequential Amendments) (England) Regulations 2024 (SI 2024/1007). But it almost certainly doesn't apply to your situation, and misunderstanding this is one of the most common and expensive mistakes second home owners make.

The Class M Trap

Class M excepts dwellings requiring or undergoing major repair work or structural alterations from council tax premiums. So far, so good. But there's a critical limitation: Class M applies exclusively to long-term empty homes under Section 11B. It does not apply to furnished second homes under Section 11C.

Here's why that matters. If your property is substantially furnished, it falls under Section 11C as a second home, not Section 11B as an empty home. And Class M has no jurisdiction over Section 11C properties.

This catches more people than you'd expect. A property you bought with the previous owner's furniture still inside. A renovation project where you left your own furniture during the works. A house where some furniture remains. If the property is still substantially furnished, it's a second home, and Class M doesn't help.

What Class M Actually Covers

For genuinely unfurnished empty properties, Class M provides premium protection for up to 12 months. The property must require or be actively undergoing major repair work or structural alterations to render it habitable.

"Major" means exactly that — this isn't a redecorating exception. Class M targets properties that need structural work: roof replacement, underpinning, removal of asbestos, complete rewiring, damp-proofing throughout, structural wall repairs. A new kitchen or bathroom alone is not enough unless the work meets the major-repair or structural-alteration test.

If the repairs finish in less than 12 months, Class M continues for up to 6 months after completion or until the 12-month cap is reached, whichever comes first.

Evidence requirements include:

• Architect or structural engineer reports documenting the required work
• Building control notices
• Contractor invoices and signed contracts with timelines
• Photographs showing the property's condition before and during works

The Furnished Renovation Dilemma

So what do you do if you're renovating a furnished property and facing the 100% second home premium?

Option 1: Remove all furniture. Strip the property to unfurnished status. It then falls under Section 11B as an empty home. The empty-home premium starts after 12 months if the billing authority has adopted one. Class M may protect against an applicable empty homes premium for up to 12 months while repairs are underway. But note the trade-off — an empty property can face graduated premiums of up to 300% after 10 years if the renovation drags on beyond Class M's protection.

Option 2: Accept the second home premium and look at other exceptions. If the property is furnished because you're also marketing it for sale alongside the renovation, Class G (actively marketed for sale) gives you a 12-month exception. If you're marketing it for let, Class H applies. These are separate from Class M and do apply to second homes.

Option 3: Apply for a Section 13A discretionary reduction. Billing authorities have the power under Section 13A of the LGFA 1992 to reduce council tax in cases of hardship or exceptional circumstances. A claim may be considered where severe, unpreventable hardship exists, such as natural-disaster damage that prevents occupation. This is entirely at the council's discretion — there's no entitlement — but it's worth asking.

VOA Deletion: The Nuclear Option

If a property is so severely damaged that it's genuinely incapable of occupation — fire damage, structural collapse, flooding that's rendered the building unsafe — you can apply to the Valuation Office Agency (VOA) to have it removed from the council tax valuation list altogether. Deletion eliminates all council tax liability. But the legal test is high: the dwelling must be incapable of being rendered habitable through standard repair work, requiring expenditure disproportionate to the property's value.

This is rare, but it exists. Once the property is rebuilt and the VOA re-enters it on the list, council tax liability resumes.

Don't Let the Premium Accumulate

Whether or not Class M applies to your situation, don't ignore a premium you think is wrong. Every month you pay the surcharge without claiming an exception is money you may never recover — and while there's no statutory time limit on backdating exceptions, the longer you wait the harder it is to compile evidence.

For a structured walkthrough of which exceptions apply when you're renovating, our Second Home Council Tax Premium guide includes a property status classification worksheet that maps your specific situation to the right exception class and evidence checklist.

See more England guides →