Skip to content
agents/en vrai

Automatic twice-yearly tracking of real property sales (DVF) in your area

Each time France's open property-sales dataset (DVF) is updated, the agent downloads sales for your towns, computes price per m² and trends, and emails you a commented summary.

L3 autonomousVerified sourceBased on official documentation we checked; not tested by us yet. · updated 16/10/2026
Difficulty
Advanced
Setup time
3 h
Estimated cost
€0–5 per half-year
Category
Real estate

⏱ Trigger

Every 1 April and 1 October (cron, matching DVF releases)

✋ Human approval

Read-only: the agent acts on nothing; you interpret the summary.

→ Output

Twice-yearly email + data series tab in Sheets

Autonomy level 3 — Autonomous: Runs end to end on its own; only low-risk actions (read, notify, archive).

01Connected tools

02What the agent does on its own

    step 01

    Downloads the geolocated DVF file for your towns from data.gouv.fr (French open-data portal).

    step 02

    Filters by property type and cadastral section.

    step 03

    Computes median price per m² and number of sales, compared with the previous half-year.

    step 04

    Has a cautious summary written and emails it to you.

03Agent instructions

$ instructions.txt · replace the {VARIABLES}
> Here are aggregated DVF statistics: {STATS}. Write at most 8 lines describing the trend without extrapolating or valuing any specific property. Flag it if the number of sales is too small to draw conclusions.

04Limits and legal points

DVF lags by several months and excludes some areas (Alsace-Moselle, Mayotte). This is not a property valuation.

05Source

https://www.data.gouv.fr/fr/datasets/demandes-de-valeurs-foncieres/

06In the same category

→ weekly newsletter

3 agents en vrai.
Every week.

Three reproducible, sourced autonomous agents. No hype, no "top 100 tools". One-click unsubscribe.

status: opens at launch