A finished research run on an example topic, shown in full — the findings, the sources behind them and the product versions are all the run's own output, except that a product name may have been changed where it matched an existing brand.
Untapped Quick win
Staybench
A price-legitimacy layer that scores every mid-term listing against a computed local-rent benchmark per city, flagging inventory priced 3-5x above genuine monthly rents as likely relabeled tourist stock.
What to build
MVP
A benchmark engine built from Idealista and local agency rent data for 10 European cities, delivered as a browser extension and lookup tool that overlays a 'fair-price' badge on Flatio, HousingAnywhere and Airbnb monthly listings.
Why it can be better
None of the named platforms compute a local-rent benchmark, so relabeled short-term inventory currently sits indistinguishable from genuine mid-term stock; this directly targets that missing price-legitimacy scoring.
Revenue model
Freemium browser extension with a paid tier ($8/month) for full city coverage and historical price trends, plus a B2B API sold to platforms wanting to display trust badges.
Target user
Price-sensitive renters and relocation agencies comparing furnished listings against real local rent levels.
Context
The opportunity this answers
Build a cross-platform mid-term rental search and verification layer that flags genuine below-tourist-rate furnished listings for renters relocating across European cities.
Why now
Regulatory crackdowns on short-term rentals across European cities are actively pushing landlords and institutional investors to relabel stock as mid-term, creating a fast-growing but unverified supply just as dedicated platforms like Flatio, Wunderflats and HousingAnywhere are scaling city coverage, meaning the market has enough real inventory and enough abusive relabeling happening simultaneously that a verification and aggregation layer is now buildable and needed, whereas a year or two ago the segment was too thin to support it.