You keep reading them
It is the only measure of success that counts for an alert system. It is achieved by producing fewer alerts, not more.
Performance
It does not just track: it spots what can be improved.
An alert is only worth something if you read it, and you will only read it if it has never wasted your time. Pilot produces few, ranks them, and itself downgrades those that rest on data it cannot defend.
- 21automatic daily or monthly processesrealestate/settings.py — CELERY_BEAT_SCHEDULE entries for pilot.tasks
One alert too many, and you stop reading any of them.
It is the central problem of any alert system, and it is solved by restraint rather than quantity. A dashboard that flags every property tax bill as a drift, every new tenant as a risk and every estimate as a selling opportunity becomes background noise within three weeks. Pilot therefore does three unusual things: it excludes from the signal what was expected, it separates what calls for an action from what is merely worth knowing, and it explicitly marks as indicative the opportunities whose calculation rests on too fragile an estimate — moving them down the list rather than presenting them like the others.
- A weekly sweep, not a continuous feed
- Expected deadlines are excluded from the drift signal
- An opportunity based on a fragile estimate is marked indicative
- Reference rate read on 1 April 2026 (Cafpi, Empruntis), silent after six months
In practice.
The rent is compared with the market, cautiously
A rent clearly below the market is flagged, with the gap. But the alert also carries the constraint: where rent control applies, or where the energy rating freezes the increase, the potential displayed is capped by what the law allows — not by what the market would bear.
Charges are compared with themselves
Two rolling twelve-month windows, which cancels out seasonality. A rise that is flagged is therefore a real rise, and not the month the property tax bill came in.
The yield is compared with the rest of the portfolio
A property clearly below the others is brought to the top — with the same definition of yield for all, otherwise the comparison says nothing.
Regulatory constraints are anticipated
An energy performance certificate approaching a letting-ban deadline is flagged long in advance, because renovating takes months and the constraint itself falls on a fixed date.
Anything resting on fragile ground is downgraded
When an opportunity relies on an unreliable value estimate, it is marked indicative and carries less weight in the ranking. It remains visible — hiding it would be another form of lying — but it does not present itself as a fact.
What is out of date stays silent
A credit-terms reading more than six months old stops triggering refinancing advice. Better to say nothing than to call last year’s figure “current”. The reference rate in use was read by hand on 1 April 2026 (Cafpi and Empruntis observatories): after the end of September 2026, the “loan above the market” alert stays silent until the next reading.
What it changes
The potential displayed is a legal potential
A “you could re-let for more” alert that ignores rent control or the freeze linked to the energy rating pushes you to break the law. Here the constraint travels with the opportunity.
Fragility is stated, not concealed
An indicative opportunity remains viewable and flags its own status. That is more useful than silent filtering, which would suggest there is nothing to see.
The law, and the pitfalls
The rent of a home rated F or G may not be increased at review, at renewal or on re-letting; and letting such homes is being progressively prohibited.
art. 159 and art. 160 of Law No. 2021-1104 of 22 August 2021 (Climat et résilience)
These are two distinct constraints that are often confused: the rent freeze on the one hand, the ban on letting on the other, with different timetables depending on the rating. A landlord preparing for the first can be caught out by the second.
The landlord must provide decent housing, showing no obvious risk to physical safety or health, and meeting a minimum energy performance criterion.
art. 6 of Law No. 89-462 of 6 July 1989; Decree No. 2002-120 of 30 January 2002
A home that does not meet decency standards exposes the landlord to suspension of housing benefit payments and allows the tenant to go to court to obtain works or a rent reduction. It is not a constraint to deal with when re-letting: it is permanent for the whole tenancy.
A commercial communication based on unverifiable or misleading information about the expected benefits of a product constitutes a misleading commercial practice.
art. L. 121-2 of the French Consumer Code
That is why we mark our own opportunities as indicative when they rest on a fragile estimate. A gain announced in euros on the basis of an uncertain model is not a forecast, it is a claim — and it would commit us.
What Pilot refuses to do
Pilot does not alert on what was expected
Property tax, scheduled service charge calls and major works already committed are excluded from the drift signal. An alert about what you knew was coming teaches you to ignore alerts.
Pilot does not present a fragile estimate as a fact
The opportunity is marked indicative and moves down the list. We prefer a weakened, honest signal to a quantified gain that would prompt a decision.
art. L. 121-2 of the French Consumer Code
Pilot does not advise renegotiating on an out-of-date reading
Beyond six months, the credit-conditions reading stops triggering advice. A “rates have fallen” based on last year’s data is advice that costs a bank appointment for nothing — or worse.
Availability
Included from the Essentiel tier.
- 7-day trial at launch, card required
- No commitment
Frequently asked questions
Which alerts are produced?
Rent well below the market, charges rising over a rolling twelve months, yield below the rest of the portfolio, a survey nearing a ban date, an incomplete document file, and loan terms above the reference rate — a manual reading dated 1 April 2026, which stops being used six months later.
Why are some opportunities marked “indicative”?
Because they rest on a value estimate we cannot defend — too few observed sales, an atypical property. They remain visible but carry less weight: announcing a gain in euros on an uncertain basis would be an assertion, not a forecast.
Am I alerted at every known due date?
No. Property tax, scheduled service charge calls and works already committed are excluded from the drift signal. That is what allows an alert to remain credible.
Does the rent alert take rent control into account?
Yes, and this is essential: the potential displayed is capped by what the law allows, not by what the market would bear. An alert that ignored the cap or the freeze linked to the energy rating would push you to break the law.
How often does the analysis run?
A weekly sweep for opportunities, a daily check for late payments and arrears. No continuous feed: an alert that arrives every day stops being an alert.
Right next to it.
The rent
The market says one figure. The law says another.
Whether a review is available or not, the date of the next one, the constraints detected with their legal grounds, and what becomes possible on re-letting. It is the distinction missing everywhere else.
Performance
Twenty-four months, otherwise October looks like a disaster.
Costs-to-rent ratio on rents actually received, a 24-month series and a rolling average — without which October’s property tax looks like a drift.
Performance
Keep, sell, watch — or say nothing.
Ranked on net yield, IRR, and a keep / sell / watch verdict — suspended when the value is not certain enough.
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.
Performance
One definition of yield, everywhere.
Costs deducted, total cost in the denominator. One single definition of yield across the whole product.
Content reviewed on 2026-08-06.
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