£10,000 Cap and Exemptions

The £10,000 cap and the exemption process are the two most misunderstood parts of the 2030 rules — and the two most likely to actually save you money, if you understand how they work.

The cap, in practice

£10,000 is the most you can be required to spend per property to reach band C. This replaced a much lower cap under the older version of these rules, which is a genuine improvement for landlords — but it also means £10,000 is now the realistic figure to budget around, not a worst-case scenario.

Important detail: the cap applies per property, not per portfolio. A landlord with five properties needing work could realistically be looking at a multiple of that figure across the portfolio, even though no single property exceeds the cap.

What counts toward the £10,000

Generally, costs directly tied to reaching band C — heating system upgrades, insulation, and related works recommended for that specific property. It does not typically include cosmetic work, unrelated repairs, or improvements beyond what’s needed to reach the required standard.

When an exemption applies

If you’ve had a proper assessment done, genuinely spent up to the cap (or a qualified assessment confirms it would cost more), and the property still won’t reach band C — that’s the situation an exemption exists for. Common categories include:

• High-cost exemption — the cost of reaching band C genuinely exceeds the cap
• “All improvements made” exemption — every relevant improvement within the cap has been carried out, and the property still doesn’t reach band C
• Specific technical exemptions — certain property types or situations where the required works genuinely aren’t feasible

The mistake worth avoiding

Some landlords hear “exemption” and assume it means “I don’t have to do anything.” In practice, registering a valid exemption usually still means you’ve had to commission an assessment, get genuine quotes, and in most cases actually spend up to the cap before the exemption becomes valid. It’s not a shortcut around the cost — it’s a ceiling on it.

What to do next

If you suspect your property might be heading toward exemption territory rather than a straightforward upgrade — older properties, solid-wall construction, and certain off-gas-grid properties are common candidates — it’s worth getting a proper assessment before assuming either way. Guessing wrong in either direction (assuming you need an exemption when you don’t, or assuming you don’t when you do) tends to cost more than getting it checked properly from the start.