Postcode reference
Compare the advertised price with an area-level statistical reference. When a postcode is inferred, it is clearly marked as approximate.
Google Chrome extension
Referencia de vivienda
An area-level price reference alongside homes for sale.
The extension adds postcode context to Idealista map listings, helping users compare an advertised home with an area-level reference.
Private beta
Limited access during this phase
Referencia de vivienda is in private beta for Chrome. For now, it works on compatible sale-map pages in Extremadura and the Community of Madrid. Safari compatibility will be considered in a later phase.
What it shows
A point of comparison for each compatible listing
When you select a property card, the extension can show its postcode, the reference price per square metre, the advertised price and advertised price per square metre.
It also calculates an indicative value based on the listing's floor area and the percentage difference from the area reference. It is an area-level statistical reference, not a valuation or the final sale price of that home.
How to read it
Information to compare, not a decision for you
Each reference includes its period and sample size. It provides context for a listing price; it does not replace a valuation, professional review or financial decision.
Listing context
See the advertised price, advertised price per square metre, an indicative value based on the property size, and the percentage difference.
Context for the reference
The statistical period and the number of transactions in the sample help put the reference into context.
Intended use
Compatible homes for sale only
The beta is designed for compatible homes for sale on Idealista's map. It does not apply to rentals, land, commercial premises or unsupported listings.
Privacy
Only the data needed for a lookup
It needs no account, advertising, analytics or browser geolocation. Visible card information is processed locally; see the privacy policy for the limited use of map coordinates and local caching.
Read the privacy policy →Interested in the beta?
The extension is still being tested privately. Use the contact form to request access or report an issue.
Request access