Use cases
Concrete examples of what you can build with the Normi API. Each use case lists the endpoints involved and links to the matching guide or reference page (in French for now).
Estimate a property's value
Get a low / median / high range from geolocated DVF comparable sales. Built for agents, notaries and valuation (AVM) platforms.
Analyse a local market
Combine aggregated statistics, quarterly trends and a market health score into a complete market report in a single call.
Due diligence before buying
Look up the full transaction history of a precise address or cadastral parcel before making an offer.
DPE audit and green premium
Find F/G energy-inefficient homes, measure the price gap between energy classes and track the green premium over time.
Manage a property portfolio
Store your properties with automatic DVF valuations, track how they move and compare them with the local market.
Watch a market with alerts
Get a webhook notification as soon as a new sale matching your criteria (type, price, surface) is published in DVF.
Map prices across a department
Fetch median prices aggregated by postcode to feed a heatmap or any geographic visualisation tool.
Find agencies and notaries
Locate real estate professionals (agencies, notaries, developers) around a GPS point through the enriched SIRENE directory.