How long has a property been on the market? (and why the answer is money)

Yes, you can find out, mostly. Rightmove and Zoopla both show a listing date, a browser extension will show you the price history behind it, and an agent will usually tell you the truth if you ask directly. But there's a catch worth understanding before you trust any of those numbers: listings can be reset, and the properties where the date has been reset are precisely the ones where the real answer matters most.

Here's how to get the true figure, and what to do with it once you have it.

What Rightmove actually shows

Open any Rightmove listing and look for the line under the price: "Added on 14/03/2026" or "Reduced on 02/06/2026".

Two things to know about it:

• "Reduced on" replaces "Added on." Once a price drops, the original listing date disappears from the page. A listing showing "Reduced on 02/06/2026" might have been added fifteen months ago. The page no longer says.
• Relisting resets everything. If the agent creates a fresh listing, whether after a fallen-through sale, a switch of agent, or simply to look like new stock, the clock starts again at zero. To Rightmove it's a new property. To you it looks like one.

So the on-page date is a minimum, not an answer. "Added yesterday" means added-or-re-added yesterday.

What Zoopla shows

Zoopla is a little more forthcoming. Its listings carry a timeline of first listed, price changes and status shifts, and its sold-price records sometimes show a property's previous marketing history. It suffers the same relisting blindness, but when a property has stayed on one continuous listing, Zoopla's timeline is the quickest honest answer available.

Checking both portals is two minutes well spent: the same house is often listed on both, and the dates don't always agree. The earlier one is closer to the truth.

The free tools that fill the gap

A small ecosystem of browser extensions exists precisely because the portals are cagey about history. Property Log is the best known: install it, open a Rightmove listing, and it overlays the price history it has recorded, every cut with dates, and in many cases links a relisted property back to its earlier appearance. Others (Property Tracker, PaTMa's extension and similar) do versions of the same thing.

Their limits are structural: they show history for the listing you're looking at, one at a time, and their records are only as complete as what they've observed. They can't tell you "show me everything in Wolverhampton that's been sitting for four months." But for a single property you're serious about, they turn the portal's carefully vague date into an actual timeline.

Two low-tech backstops:

• The EPC register. A "new to market" listing whose energy certificate was lodged two years ago, by the vendor, invites a question about what's been happening for two years. Sometimes the answer is innocent, like a failed let or a slow probate. It's still a question worth asking.
• Ask the agent. "How long has it actually been on, including with anyone else?" Agents are legally obliged not to lie to you, and most won't try. The hesitation before the answer is data too.

What counts as "a long time"?

Context matters. A typical UK property currently takes somewhere around two to three months to go under offer, with wide variation by region and price band: faster in a hot commuter market, much slower for a large detached house in a thin rural one. Completion adds months more, but for judging a listing, time-to-offer is the yardstick.

As a rough working scale for an ordinary house in an ordinary market:

• Under 6 weeks: fresh. The vendor still believes the asking price. Discounts here come from certainty (chain-free, cash), not from time.
• Two to four months: the interesting zone. Viewings have happened, offers haven't, and the vendor's confidence is quietly eroding. Price reductions typically start here, and a listing that's had one cut usually has room for another.
• Six months and beyond: the market has delivered its verdict on the price. Either the vendor is about to become genuinely flexible, or they were never really selling.

The negotiation logic

Why does the number matter so much? Because an asking price is a hypothesis, and time on market is the test result.

A house priced at £250,000 that's sat for five months isn't a £250,000 house. It's a house that the entire buying public, given five months of open viewing, has declined to pay £250,000 for. Your offer isn't arguing with the vendor's opinion, it's siding with the market's verdict. That reframing (polite, factual, unarguable) is the most useful sentence in a negotiation: "It's been on since March, and the market's had a good look."

Time also compounds the vendor's costs. Every month unsold is another month of mortgage, insurance, council tax on an empty property, or an onward purchase slipping away. You don't need to mention any of that. They're already counting it.

One honest caveat: a long time on market means motivated or immovable, and you need to work out which. Some long-listers are probate properties priced by a family member's optimism and going nowhere. Some vendors have no mortgage, no urgency and no intention of dropping. The tell is usually in the history. A listing that has never been reduced in eight months belongs to someone ignoring the market; one that's been cut twice belongs to someone negotiating with it. The second one wants to sell.

The uncomfortable summary

The single most valuable number about any listing, how long it's genuinely been for sale, is the number the portals are least willing to show you plainly, and the number agents most often reset. The tools above will get you the truth for any one property, with a few minutes' work per listing.

Getting it for every listing at once, so the four-month sitters in your patch surface themselves instead of hiding behind fresh "Added on" dates, is a different kind of problem. It needs someone to have been keeping the receipts on the whole market.

BrickSift keeps those receipts: true time on market, every price cut and every relist, across the UK, so the listings that have been quietly sitting can't pretend otherwise. Join the waitlist to see the market with its history switched on.