Why the best estate agents are increasingly working off-market

The top tier of London agency is quietly restructuring around a simple observation: the clients with the best properties increasingly do not want them marketed. Hamptons research made it official, finding off-market sales had become the norm for expensive homes, with more than half of £2m-plus stock selling without public advertising in 2023. By early 2023, CNBC was describing luxury sellers transacting over WhatsApp. For agents, off-market capability has stopped being an occasional courtesy and become the product itself.

Why are top agents moving off-market?

The first reason is instruction-winning. A vendor weighing two agencies hears one offer a launch plan, and the other offer a list of named, qualified buyers who could be introduced this week without a single public trace. The second pitch wins prime instructions with increasing regularity, because it speaks to what prime vendors actually fear: not a lack of exposure, but the public record of an unsold home. An agent who can demonstrate a deep network of pre-qualified buyers is offering a fundamentally different service, and sellers notice.

The second reason is transaction quality. Private introductions filter for seriousness on both sides. The buyer arrives knowing the sale is discreet, funded and ready to move; the seller engages knowing the buyer was matched, not browsing. The result, on our platform, was an average of fourteen days from private availability to accepted offer in the first quarter of 2026, against 67 days for comparable open-market stock.

“Invisible Homes allows you to approach serious buyers … without that time stamp gathering around a property.”

Daily Mail

The constraint: one office’s phone book is not a market

The traditional limit on off-market selling was reach. An agent’s private list, however good, is a few hundred contacts, weighted to whoever rang most recently. That is the infrastructure problem Invisible Homes was built to solve, and it is why agencies plug into the platform rather than compete with it. As our founder Mark Wells put it in Property Industry Eye: “Invisible Homes supercharges off-market selling for estate agents. We give agents access to many thousands of motivated buyers for each of their listings.” The platform now connects more than 150 partner agencies to 80,000 registered members, and matching does the remembering: “Our platform chooses the most appropriate buyers first, and with no date stamp attached, the risk of a property becoming stale is removed.”

The direction of travel shows in who is backing the model. When the platform raised £800,000 in 2024, the round was oversubscribed inside three weeks, with much of the demand coming from the platform’s own users. Agencies, buyers and investors are converging on the same conclusion that vendors reached first: the private market is becoming the market.

If you are an agent holding prime stock, the buyers are already here. And if you are a seller choosing between agents, ask each one the same question: who, exactly, would you introduce my home to this week? We can show you.