The product
Five situations Thomas knows by heart, and what Keysy does with them. Every screen is taken from the product, using a demonstration portfolio: 4 assets, 31 leases, 4 entities.
The subject
As soon as one estate combines office, retail and residential, it no longer falls under a single body of rules. Indices diverge, notice periods diverge, energy obligations diverge — and most systems force you to open one file per regime.
Keysy was designed around this constraint, not adapted to it afterwards.
| Regime | Revision | Notice | Specific constraint |
|---|---|---|---|
| Office leaseOffices, business premises | ILATannual or three-yearly | 6 months | Tertiary decree — OPERATannual declaration > 1 000 m² |
| Commercial leaseRetail, shops | ILCannual | 6 months | Cap lifted at the three-year reviewrental value, art. L145-33 |
| Residential leaseUnfurnished or furnished housing | IRLannual, mandatory clause | 3 or 6 months | Rent control + F/G energy-rating freezerevision prohibited |
| Short-term leaseShort duration | FreeICC common | — | Requalification beyond 3 yearsswitches to a 3/6/9 lease |
9:12 am
Thomas is looking for the assignment clause of a 2019 lease. It is on page 9, article 12.
Document intelligence
Extraction is not a black box. Every field carries a confidence score, a source page and a status. Below the threshold, control returns to the human.
The document is segmented page by page: lease body, appendices, amendments, plans. Tables and numbered clauses are recognised as such.
A model specialised in French legal texts identifies the 18 fields of the reference file and keeps, for each one, the original page and passage.
Business rules applied to the output: rent/area consistency, index compatible with the regime, ordered dates, applicable caps.
Above the threshold, the field is proposed pre-filled. Below it, it is flagged and blocks validation until a manager has settled it.
Example — demonstration portfolio
Commercial lease 3/6/9 — page 1, art. 1
Delaunay Conseil SAS · 812 445 903 — page 1
208 760 € — page 4, art. 5 · consistent with 742 m²
ILAT base Q3 2023 — page 5 · compatible with an office lease
31 March 2027 — page 2, art. 3
Below the threshold — human review required · ambiguous wording on page 9, art. 12
1 April
The due date, though, was in someone else’s diary. Three months of increase lost.
The reference file
Parties, areas, rent, deposit, index and reference quarter, service-charge clauses, three-year break dates: fields are extracted and attached to the asset. Notarial deeds, inspection reports and amendments follow the same route.
Migrating a portfolio of 120 leases: a few days, against several weeks of data entry.
Example — demonstration portfolio
The system identifies leases due for revision, applies the index and quarter stipulated in the contract, checks the caps and produces the regulatory letter. The calculation stays broken down line by line and enforceable in case of dispute.
Up to 200 mixed leases revised in one session, each with its own justification.
Example — demonstration portfolio
Accounts are connected read-only through a PSD2 aggregator. Every transaction is matched to its lease. Discrepancies, partial payments and emerging delays feed the processing queue, with the formal notice drafted at the right contractual stage.
The delay is identified at D+3, before amicable recovery loses its effectiveness.
Example — demonstration portfolio
Quarter end
Occupancy, collections, expiries: four files, two evenings, one more version.
Steering
The statements you rebuild in spreadsheets today are produced continuously: effect of revisions, expiry profile, collections, vacancy.
Example — demonstration portfolio
Annualised rent
1,27 M€
+ 3,4 % vs previous year
Collection rate
98,2 %
+ 0,4 pt over a rolling 12 months
Occupancy rate
94,6 %
− 1,2 pt — Le Séquoia, level 2
Revisions to process
12
of which 4 due within 30 days
Annualised portfolio rent, with and without applying contractual revisions
Annual gap at 31.12.2026
+ 211 k€
| k€ | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|---|---|
| Revisions applied | 1 060 | 1 078 | 1 092 | 1 131 | 1 186 | 1 229 | 1 271 |
| Baseline without revision | 1 060 | 1 060 | 1 060 | 1 060 | 1 060 | 1 060 | 1 060 |
Leased area as a share of usable area, at 16 August 2026
| Asset | Usable area | Leased area | Vacancy | Occupancy rate |
|---|---|---|---|---|
| Tour Ampère — Levallois | 4 200 m² | 4 200 m² | 0 m² | 100 % |
| Retail Park Sud — Vitrolles | 2 800 m² | 2 700 m² | 100 m² | 96,4 % |
| Îlot Verrier — Lyon 3e | 3 100 m² | 2 900 m² | 200 m² | 93,5 % |
| Le Séquoia — Nantes | 1 900 m² | 1 550 m² | 350 m² | 81,6 % |
Annual rent falling due, by year and by type — average terms weighted by rent
| k€ | 2026 | 2027 | 2028 | 2029 | 2030 | 2031 |
|---|---|---|---|---|---|---|
| Offices | 42 | 118 | 64 | 186 | 71 | 38 |
| Retail | 18 | 26 | 52 | 34 | 21 | 44 |
| Residential | 24 | 31 | 28 | 22 | 26 | 19 |
On the road
A revision ready, an unpaid rent at D+21: everything is decided from the phone, with the same trail.
Mobility
Most of what Keysy prepares can be approved in seconds. The iOS and Android app, currently in closed testing, will pick up the processing queue, with the same approval route and the same audit trail as the desktop.
Example — demonstration portfolio
Automation level
We document the boundary rather than announce full automation. This table reflects the state delivered at 16 August 2026.
| Process | Detection | Preparation | Issuing |
|---|---|---|---|
| IRL / ILC / ILAT / ICC revisionDue date, deterministic calculation, notice | Automatic | Automatic | On approval |
| Rent and service-charge callsPeriodic issuing, distribution, archiving | Automatic | Automatic | On approval |
| Debt collectionReminder, formal notice, termination clause | Automatic | Automatic | On approval |
| Bank reconciliationTransaction ↔ lease · PSD2 aggregation | Automatic | Automatic | On approval |
| Document readingLeases, amendments, deeds, inspection reports | Automatic | Automatic | On approval |
| Service-charge reconciliationInvoices, allocation keys, tenant statement | Automatic | Assisted | On approval |
| Renewal and cap removalThree-year breaks, notices, rental value | Automatic | Assisted | On approval |
| Energy complianceEnergy rating, audit, OPERAT, F/G freeze | Automatic | Assisted | On approval |
| Electronic invoicing (Factur-X)VAT-liable leases | Beta | Beta | S2 2026 |
| Tenant portalDocuments, calls, requests | Roadmap | — | — |
We sign nothing on behalf of our clients. A notice to quit, a formal notice, a revision commit the principal — not the software vendor. Keysy takes care of the preparation, never the decision.
Compliance
We document the exact scope rather than announce general compliance. What does not concern your portfolio is marked as such.
Operating cycle
January
Residential leases falling due, cap checks in high-demand areas.
March — April
Commercial and office leases, art. L145-38 notice.
April — May
Tenant statement for the past year, supporting documents attached.
May
Rental income consolidated by entity, export to the accounting firm.
June — July
Six months’ notice for a 31 December expiry.
Sept. — Oct.
Tertiary decree declaration, mandatory electronic receiving.
A forty-minute demonstration on your own assets, then a pilot on a limited scope. Our teams migrate your leases; you judge on the first revision campaign.
Reply within 48 working hours · no commitment at this stage
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