Insurance Premiums Up 23%. Your Building Is Talking.

Insurance underwriters don't care about your excuses. They care about risk. And right now they're telling the UK commercial property market something important: buildings that can't prove fire safety compliance are seeing premiums jump 23% year on year. That's the average. Buildings with known cladding issues or overdue fire risk assessments are seeing 40-60% increases. Some can't get cover at all.

Your insurance premium is the market's real-time assessment of your building's risk. And it's moving faster than the regulator.

Why Underwriters Moved Before Regulators

After Grenfell, the insurance industry rewrote its risk models for commercial property. They didn't wait for legislation. They looked at the data — fire door failures, compartmentation breaches, cladding composition, evacuation route adequacy — and repriced accordingly.

The result is a two-tier market. Buildings with current fire risk assessments, compliant fire doors, and documented safety management systems are seeing stable or modest premium increases (3-5%). Buildings without are being penalised aggressively — because the underwriter knows that a building with poor fire safety documentation is statistically more likely to generate a claim.

The Documentation Gap That Costs You Money

The premium increase isn't always about physical defects. It's about documentation. An underwriter reviewing your building wants to see:

• A current fire risk assessment — conducted within the last 12 months by a competent assessor
• Fire door inspection records — quarterly inspections with documented findings and remediation actions
• Compartmentation survey results — evidence that fire compartmentation is intact, particularly in risers and ceiling voids
• A building safety case — for higher-risk buildings, evidence of an ongoing safety management system

If you can produce these documents within 48 hours of a request, your premium reflects a well-managed building. If you can't — or if the documents are outdated — the underwriter assumes the worst. They don't have time to investigate. They just price the risk higher.

The Uninsurable Building Problem

Some buildings have crossed a line. They can't get insurance at any price. This typically happens when cladding remediation is incomplete and the building owner can't demonstrate a credible timeline for completion. Without insurance, the building can't be sold, can't be refinanced, and tenants' own insurers start asking questions.

I've seen three buildings in my portfolio where insurance became the forcing function for remediation — not the regulator, not the residents, but the insurer who said "fix this or we withdraw cover." When the insurer walks away, everything else follows.

What Smart Building Owners Are Doing

The buildings getting the best insurance terms in 2026 share three traits:

1. Proactive documentation — they don't wait for the renewal to compile safety evidence. They maintain a rolling dossier that's always ready for underwriter review.
2. Continuous monitoring — IoT sensors for fire detection, water leak detection, and environmental monitoring provide real-time data that insurers increasingly value in risk assessments.
3. Named safety responsibility — a dedicated building safety manager who owns the compliance programme, not a shared resource across 20 buildings.

Frequently Asked Questions

Can I negotiate my insurance premium down with better documentation?

Yes — and you should. Present your fire risk assessment, door inspection records, and safety case to your broker before renewal. Buildings that proactively share compliance evidence typically secure 10-15% better terms than those that wait to be asked.

What happens if my building becomes uninsurable?

Without insurance, lease obligations often can't be met, refinancing becomes impossible, and sale prospects evaporate. It's the fastest way for a compliance issue to become a financial crisis. Act before the insurer forces your hand.

Are all insurers taking the same approach?

No — there's significant variation. Specialist commercial property insurers are generally more nuanced than general market insurers. A good broker who understands building safety can often find competitive terms that a generalist can't.