You do not copy public data by hand
Land registry, observed prices, risks: so many searches to run on three or four sites, and to run again for every property. It is work that adds nothing for anyone when it is done by hand.
The property
You enter an address. The property fills itself in.
French public data is open, plentiful and practically unusable one source at a time: it lives in separate registers, in different formats, with no obvious common key. Pilot cross-references them for you from a single entry — and tells you where each figure comes from.
A poorly documented property skews everything you will deduce from it for ten years.
The yield, the net value, the gap to market, the arbitration verdict, the comparison between two units: everything flows from the property’s characteristics and its total cost. An approximate floor area, an unknown plot, a district price per m² copied from a listings site — and every indicator becomes an opinion presented as a calculation. Enrichment is therefore not there to impress at data entry: it is there so that decisions taken three years later rest on dated, named references, rather than on what the landlord thought they knew on the day of purchase.
- Address completed from the national address register
- Cadastral parcel resolved, with its area
- Price per m² observed on sales actually signed nearby
- Natural hazards named, not summed up as “no major risk”
In practice.
You enter the address, with autocomplete
Entry relies on the national address register: you do not type a free string, you choose a standardised address. That is what makes all the resolutions that follow possible.
The cadastral plot is resolved
From the location, Pilot identifies the parcel, its section, its number and its area. It is the key that then links the property to hazards and planning information.
The price per m² comes from signed sales
Not listings: sales actually recorded. The difference is considerable — an asking price is a request, a signed price is a fact. The trend over several years and nearby sales are provided with it.
The risks are named
Flooding, ground movement, seismic activity, clay shrink-swell, installations nearby. Each risk is named and linked to the plot rather than summed up in an overall assessment — a reassuring summary is precisely what must not be produced on this subject.
A value is estimated, as a range and dated
With its range, its confidence level and the date of the estimate. A single figure with no range on a property is a convenient fiction; that is why we do not display one.
You complete what public data does not know
Actual living area, EPC and its expiry date, year of construction, purchase price, fees, works, loan terms. It is this private part that turns market references into indicators about YOUR property.
What it changes
Every figure carries its source and its date
An estimate six months old is not a current estimate. Values are dated, and those that age stop triggering recommendations rather than carrying on talking.
Total cost is the base, not the purchase price
Notary fees, agency fees and works go into the denominator of the yield and into the calculation of the change in value. Comparing a current value with the purchase price alone systematically overstates performance.
The law, and the pitfalls
Land value data from deeds of sale is made available to the public in open access.
art. L. 112 A of the French Tax Procedures Code (livre des procédures fiscales); Law No. 2018-727 of 10 August 2018
Open does not mean complete or immediate: publication is half-yearly and some transactions are missing. A median price calculated on too thin a sample is not a market reference, which is why the sample size must be displayed with the figure.
The landlord must inform the tenant of the natural, mining and technological risks to which the property is exposed, through a risk statement annexed to the tenancy agreement.
art. L. 125-5 of the French Environmental Code
This obligation is an annex to the tenancy agreement, not a courtesy formality: its absence can allow the tenant to seek cancellation of the contract or a rent reduction. Knowing the plot’s risks before drafting the tenancy agreement is therefore not a nicety.
The energy performance certificate is valid for ten years, and the rating it gives determines the right to raise the rent and then the right to let.
art. L. 126-26 of the French Construction and Housing Code; art. 159 of Law No. 2021-1104 of 22 August 2021
It is the private data with the heaviest consequences, and the only one public data does not give us reliably for a specific home. Entering it with its expiry date is what then lets you plan ahead — an expired EPC is usually discovered at the moment of re-letting.
What Pilot refuses to do
We do not advertise transport, shops or schools
These enrichments are planned and not connected: the functions exist and return an empty result. Showing them in a feature list would be exactly the kind of promise we spend our time withdrawing.
We do not promise “the planning rules”
The zoning is shown when the source provides it, but we do not deliver an interpreted local planning (PLU) regulation. Between displaying a zone and asserting what can be built, there is an analysis we do not carry out.
We do not display a value without a range
A single price suggests a precision that does not exist for a property. When the sample is too thin to produce a defensible range, the estimate is marked as unreliable — and it stops feeding the keep-or-sell verdicts.
Availability
Included from the Essentiel tier.
- 7-day trial at launch, card required
- No commitment
Frequently asked questions
What exactly does Pilot fill in on its own?
The standardised address, the cadastral plot and its area, the price per m² observed on signed sales nearby with its trend, the named natural risks, a value estimate as a range with its date and confidence level, and a market rent estimate.
And transport, shops, schools?
No, not today. The functions exist in the code and return an empty result: they are planned connections, not features. We would rather write that than let them appear in a list.
Where does the price per m² come from?
Sales actually recorded in the deeds, published in open access, not online listings. An asking price is a request; a signed price is a fact. The sample is displayed with the figure.
What do I have to enter myself?
What public data does not know about your home: living area, EPC (energy rating) and its expiry date, year of construction, purchase price, fees, works, loan terms. That part is what turns market references into indicators about your property.
Is the EPC fetched automatically?
No, it is entered — with its rating, its values and its expiry date. It is the data with the heaviest consequences, since it determines the right to increase the rent and, for the lowest ratings, the right to let at all.
Right next to it.
Value and debt
A dated range, with its confidence level.
Anchored to the sales actually signed nearby, with the date of the estimate and its confidence level.
The rent
A range, its sample — or an admission of disagreement.
Cross-referenced across several sources, with its range and its sample. When the sources contradict each other, Pilot says so rather than deciding.
Tenancy agreements and documents
Your documents, and the dates that make them expire.
Everything filed, searchable, exportable. Each document can carry an expiry date that feeds the alerts, and the tenant finds their tenancy agreement and diagnostics in their own space.
Deadlines and compliance
Twelve months ahead of you, not twelve months behind.
EPC, surveys, insurance, end of tenancy, tax deadlines, over a rolling twelve months.
Content reviewed on 2026-08-06.
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