Rightmove is investigating agents in Britain’s single trendiest area – booming, high-profile and mega-affluent Canary Wharf, London.

The site says it is doing so after an “unusually high” volume of customer complaints.

The agents in Canary Wharf include all of the best-known names in UK agency such as Knight Frank, Savills, Hamptons, Chestertons and Foxtons, plus many independents.

The complaints appear to be about properties still being listed as available when in fact they are under offer or have been let or sold – or are entirely fictitious listings.

Altogether, more than 300 agents in the London postcode of E14 are being asked to verify their listings.

They are all being given two weeks to “review” their stock, with the threat that both branch information and listings will then be made invisible.

A quick look at properties for sale in the postcode on Rightmove suggests there are over 1,000 available. Remarkably few, however, seem to be under offer or sold subject to contract.

The properties range from £7m penthouses to £22,500 parking lots.

Rightmove says that in June, there were over 91,000 searches for properties in Canary Wharf.

A statement from Rightmove said: “As part of our data quality processes that ensure Rightmove has the most accurate property information available, we are carrying out an exercise to ask agents in London’s E14 postcode to review their property stock and ensure its accuracy.

“This is something we usually do individually with customers but, due to the high density of agents, large volume of lettings stock as well as unusually high customer and consumer complaints in this particular postcode, we have decided to contact all 300+ agents currently marketing properties in E14 at the same time in order to carry out a full review of the area.

“Agents are being provided two weeks in which to review their stock. If, after this time, branches are found to have inaccurate or out-of-date properties they will be at risk of having their listings and branch information made invisible on Rightmove until their property stock has been updated or removed as necessary.

“In all cases we will speak to a senior member of the branch before taking any action.”

According to Rightmove data quality manager Simon Zacharzewski, over 300,000 out-of-date properties were removed during 2013.

The site says that in the first half of this year, 8.6m email leads were delivered to Rightmove advertisers.