Searching for real estate online today means querying several dozen platforms with very different logics. The volume of listings, the freshness of data, and the available filters vary greatly from one portal to another. Comparing these discrepancies allows for targeting the right channels and avoiding wasting time on outdated or non-compliant listings.
Real Estate Listing Portals: Discrepancies in Volume and Audience
Not all sites operate in the same category. The difference between a generalist portal and a specialized site is primarily measured by the number of active listings and monthly traffic.
| Platform | Positioning | Volume of Listings | Monthly Visits |
|---|---|---|---|
| Leboncoin | Generalist (individuals + professionals) | Over one million | 42 million |
| SeLoger | Professional real estate portal | About one million | 21 million |
| PAP | 100% individuals | More limited volume | Specialized audience |
| Bien’ici | New player (FNAIM network) | Rapidly growing | On the rise |
Leboncoin alone accounts for 70.6% market share of listings from individuals for sale. This figure, derived from Yanport data from July 2025, explains why most buyers start their search on this platform.
SeLoger shows a comparable volume in terms of listings, but its audience is half as large. The reason lies in its positioning: SeLoger primarily aggregates properties published by professionals, which reduces duplication but also public traffic.
To cross-reference these sources with listings from local artisan networks or agents, real estate listings on Cœur Artisan usefully complement the major portals by providing access to properties that may be absent from national aggregators.
Reliability of Online Real Estate Listings: What Recent Data Reveals
A high volume of listings does not guarantee their quality. Two recent phenomena undermine the reliability of the results displayed on the platforms.
Non-compliance with Rent Control
37% of listings analyzed between August 2025 and August 2026 exceed legal caps in cities subject to rent control. This figure, reported by Batiweb and Le Figaro, pertains to rentals but also impacts buyer-investors.
A property with a displayed rent exceeding the legal cap skews the profitability calculation. The buyer relying on the advertised rent risks overestimating their rental yield, only to face a dispute from the tenant.
Checking the compliance of the rent via official simulators (prefectures, DRIHL in Île-de-France) before planning a rental investment has become a necessary reflex.
Fake Listings Generated by Artificial Intelligence
Cases of fraud involving fake rental listings have increased by 20 to 30% since the beginning of 2026 according to authorities and several national media outlets. TF1 Info and France Info document scams where fake owners use retouched or entirely AI-generated visuals to post credible listings.
The warning signs remain the same, but their detection has become more complicated:
- A price significantly lower than the local market, combined with photos that are too perfect or without visible flaws, should trigger systematic doubt
- Any request for a transfer before a physical visit constitutes a nearly certain fraud signal
- The absence of a mandate number or agency mention on a listing presented as professional indicates unverified content
Platforms that collaborate with identified professionals (SeLoger, Bien’ici) filter these contents more rigorously. On open sites, vigilance still largely rests on the buyer.
Search Filters and Aggregators: Where the Difference Lies for Buyers
The richness of search criteria determines the time spent sorting results. Two approaches coexist.
Historical portals (Leboncoin, PAP) offer classic filters: price, surface area, location, number of rooms. SeLoger and Bien’ici add finer criteria such as the DPE, the presence of a balcony, or the type of heating.
Aggregators centralize listings from multiple sites into a single interface. Pretto Search, for example, gathers listings from 15 platforms. The benefit is twofold: reducing the number of sites to consult and receiving consolidated alerts.
The choice between a single portal and an aggregator depends on the targeted market:
- In tight areas (large metropolitan areas), an aggregator saves time by avoiding duplicates between platforms
- In rural or semi-rural areas, listings sometimes only go through local networks or independent agents, absent from national aggregators
- For luxury real estate or atypical properties, specialized portals remain more relevant than a general search
Real Estate Listings Between Individuals or Through an Agency: Concrete Discrepancies
PAP positions itself as the reference site for transactions without intermediaries. The absence of agency commission reduces the total cost, but the buyer alone assumes the legal and technical verification of the property.
On professional portals, listings are generally more detailed (attached diagnostics, verified Carrez law surface area, displayed mandate). However, agency fees increase the final price. Transparency regarding these fees has strengthened with display obligations in storefronts, now extended to online listings.
The choice is not binary. Cross-referencing a search on PAP with monitoring on SeLoger or Leboncoin allows for price comparisons for the same type of property in the same area and spotting discrepancies related to intermediation fees.
The most useful data for a buyer ultimately remains the simplest: the price per square meter in the targeted neighborhood, compared to the price displayed in the listing. It is this discrepancy that reveals an opportunity or an overvalued property, regardless of the portal used.
