Closure of The Wren - What Does This Mean for Architects?

By James Page

The decision by the Wren Insurance Association (“Wren”) to stop underwriting and exit the market in July 2026 marks the end of a major chapter in architects’ professional indemnity insurance (“PII”).

But Wren’s situation didn’t happen overnight; the pressures come from a mutual model pushed to its limits.

Why The Wren Exited.

Wren operated through ownership and funding by its member firms. When claims were manageable and spread across a stable membership base, this worked well. It gave some architects access to cover when commercial insurers pulled back from UK cladding and fire safety exposure.

The problem is that professional indemnity claims are long-tail. Liabilities can surface years, sometimes decades, after work is completed. Following the Grenfell Tower tragedy in 2017, historic projects were re-examined under a new regulatory and legal lens.

Wren continued to provide cover for these risks for its members long after most of the open market had excluded them. That decision supported members but it also concentrated risk inside the mutual.

As cladding notifications increased, Wren faced growing uncertainty around future claim costs. In response, it issued a supplementary call on members in 2025 asking firms to contribute additional funds beyond their normal premiums to protect the long-term position of the mutual.

While the call was legitimate within a mutual structure, it prompted a significant number of members to leave or consider leaving. Once that happened, Wren faced a second, more fundamental problem: scale.

The insurance model, including organisations run as mutuals, relies on breadth. Fewer members mean less risk-sharing, higher volatility, and higher cost per firm.

Wren’s board ultimately chose, with a shrinking membership base, to exit the market in an orderly, solvent way.

The Situation.

It’s important to be precise about what has happened to date. Not an insolvency. Not a scandal. A reality check and commercial decisions prompted by this. Not a failure of governance or discipline but a recognition that the risk environment had moved beyond what a reduced-scale mutual could absorb.

The PII market for architects is still dealing with the long shadow of Grenfell. Insurers are underwriting with hindsight, regulators have raised expectations, and historic projects are being judged by today’s standards. Concerns around future exposures remain, particularly around future contribution claims from contractors now dealing with Grenfell-inspired remediation.

What Matters Right Now.

For practices affected by Wren’s exit, the priority isn’t just “finding another policy”.

It’s about:

· Understanding historic exposure properly and proportionately

· Being realistic about how insurers view risk

· Planning early, not weeks before renewal

· Working with advisers who actually understand PI, not just price it

This is exactly why Forte exists.

We don’t earn commission from insurers. We don’t push clients into the easiest placement.

We focus on structure, transparency and long-term outcomes because in this market, getting PII wrong doesn’t just cost more. It creates risk that lasts for years.

Disclaimer: This article is for general information only and does not constitute financial, legal, or insurance advice. Always seek professional guidance before making decisions relating to your own insurance or risk management arrangements.

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