When Microsoft's systems failed across the globe last week, the disruption rippled far beyond email inboxes. Across the UK, hospitals couldn't access patient records, police forces struggled to respond to emergencies, and property agents found themselves unable to process transactions. For anyone in the middle of buying or selling a home, the outage offered an uncomfortable reminder: the entire property sector now depends on technology systems that can fail.
The scale of the disruption was remarkable. More than a million NHS staff lost access to emails, calendars and file systems. Courts cancelled cases. GP surgeries were inundated with panicked phone calls from patients trying to confirm appointments. Property agents, too, had to resort to workarounds when Microsoft 365 services including Outlook, Teams and SharePoint went down.
For property professionals, the fallout was immediate and practical. Most estate agents, conveyancing firms and mortgage brokers operate almost entirely through Microsoft platforms. When those systems vanished, so did email communications, appointment scheduling, document storage and client management systems. Staff reverted to paper records and handwritten notes, reversing decades of digital progress in a matter of hours.
What happened behind the scenes
The outage wasn't a hack or a data breach. Instead, it was a software update that went catastrophically wrong, cascading across Microsoft's cloud infrastructure worldwide. The company's NHS.net Connect system, which underpins communications for over a million healthcare workers, fell offline. The regulatory body responsible for approving new medicines and medical devices also lost the ability to send and receive emails.
For property transactions, timing is everything. Offers expire. Survey deadlines slip past. Conveyancing documents need to be exchanged and signed. Chain delays can collapse deals entirely. When the systems that coordinate all of this suddenly stop working, even for a few hours, the knock-on effects can derail transactions that took months to set up.
Estate agents reported being unable to access client details, property listings, and crucial correspondence with solicitors and surveyors. Some resorted to calling clients on personal mobile numbers to keep negotiations moving. Others simply had to wait, watching the clock tick on time-sensitive communications.
The property market's hidden vulnerability
This outage exposes something the UK property sector has quietly avoided discussing: how dependent it's become on a small number of large technology providers. Unlike healthcare, which has some paper-based fallbacks, or courts, which can postpone cases, property transactions exist in a state of perpetual urgency. Every day matters when someone's moving house.
The property market is already under pressure. House prices have grown by just 0.9% in the past year. Mortgage rates remain elevated, with the average 5-year fixed sitting at 5.39%, well above the Bank of England's base rate of 4%. Buyers are cautious. Sellers are reluctant. The average UK house price stands at £273,037, and demand has been stalling.
In this fragile environment, a technology outage isn't just an inconvenience. It's a forcing event that exposes existing weaknesses. If the systems managing property transactions are this vulnerable to a single software update, what happens when the next incident occurs?
What property professionals should do
Most estate agents and conveyancing firms have learned from the outage. Many are now reviewing their business continuity plans. Those who don't have offline procedures for critical tasks should implement them now. Paper backup systems, printed client contact lists, and alternative communication channels aren't glamorous, but they work when technology fails.
Brokers and agents are also having conversations about using multiple platforms for critical functions. Relying entirely on one company's products means betting the entire transaction on their reliability. A more resilient approach would distribute important functions across different providers, so that no single outage can grind the whole process to a halt.
What buyers and sellers should know
If you're currently selling your home or in the process of buying, the outage is unlikely to affect you directly. Most agents got systems back online within hours. However, it's worth asking your estate agent or solicitor whether they have contingency plans if something similar happens again.
When choosing someone to represent you, it's fair to ask about their backup systems and what they'd do if their primary technology failed. It's a sign of a professional operation. Agents who've thought about this scenario are better prepared to protect your transaction if it happens again.
The outage also serves as a reminder that property transactions require human beings, not just systems. When technology fails, clear communication, local knowledge and direct contact matter. The agents who thrived during the outage were those with strong personal relationships and the ability to pick up the phone.
Technology makes property transactions faster and smoother when it works. But as last week proved, having people who understand the process and can work around problems is equally important. Look for agents who combine both.