New-Build (Post-2009) Flood Insurance
It feels back to front: a brand-new, well-built commercial or mixed-use property can be harder to insure against flood than a Victorian one next door. The reason is a single date written into the Flood Re scheme — 1 January 2009 — and understanding it is the key to getting your new building covered.
The 2009 cut-off, and why it exists
Flood Re, the scheme that underpins affordable domestic flood cover, deliberately excludes most properties built after 1 January 2009. This was a policy choice, not an oversight. The intention was to avoid subsidising new development on land known to flood — the logic being that anything built since 2009 should have been steered away from flood risk by the planning system, or built to be resilient to it.
For commercial property the point is academic, because Flood Re excludes commercial buildings entirely. But for new residential, let and mixed-use stock, the post-2009 rule is what removes the safety net — and it catches developers, investors and owners of modern premises by surprise.
Insuring a modern building at flood risk? Get a specialist flood review →
Who this affects
- Developers and investors holding recently completed schemes in or near a flood zone.
- Owners of mixed-use buildings — commercial below, residential above — where neither part fits Flood Re.
- Build-to-rent and portfolio landlords, already excluded as let property and again as post-2009 stock.
- Buyers of new-build commercial units discovering at completion that flood cover is restricted.
How we get modern buildings covered
| What underwriters want | Why it helps your case |
|---|---|
| Finished floor levels | Often set above the modelled flood depth, materially reducing the real risk. |
| Flood-resilient construction | Resistant materials and raised services limit damage and speed recovery. |
| Planning & flood-risk assessment | The FRA produced for consent shows the risk was assessed and mitigated. |
| Local flood defences | Schemes completed for the development reduce residual exposure. |
For genuinely high-risk modern sites, a parametric flood layer can sit over the indemnity cover to handle any residual exposure or a high excess. And where the building is let or held in a portfolio, we fold it into a property owners' policy rather than chasing standalone terms.
The complete picture: our commercial flood insurance guide →
Why are post-2009 buildings excluded from Flood Re?
Can a new commercial or mixed-use building still get flood cover?
Does the 2009 rule affect commercial property?
Miller & Partner Limited is an Appointed Representative of Gauntlet Risk Management Ltd, which is authorised and regulated by the Financial Conduct Authority. This article is general information, not advice on a specific policy. Cover and availability depend on the individual risk and the insurer's assessment.
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