The evidence layer for real estate

We connect the whole chain — from the document that arrives to the report that goes out — so automation compounds and every result traces back to its source.

14 rue d'Alsace

14 rue d'Alsace, 75010 Paris, FranceMixed-UseAlsace Fund

DashboardData points13Documents9Tasks12
DefaultLeasingValuation+Customize

Summary of the last month

The indexed rent for Unit 3 rose to €48,320.40 on the January ILAT revision, and the Q1 service charge demand arrived €33.00 under the cap. Six values are waiting on you, four of them from the service charge pack.

Picture

Tasks

Backlog3

Chase 2025 works invoiceFile insurance certificateRequest updated EPC

In progress3

Verify indexed rentReconcile Q1 chargesCheck indexation reference

Waiting3

Landlord confirmationManaging agent replyInsurer schedule

Done3

Q1 charge reconciledLease uploadedTenant contact updated

Map

Timeline

Jan 2026Rent indexed — €48,320.40Jan 2026Service charge demand issuedSep 2025HVAC works certifiedJun 2025Rent revision noticeNov 2024Insurance renewedMar 2021Commercial lease signedAug 2019Roof replacedFeb 2017Facade restoredMay 2014Lift modernised1911Construction year
New chat
14 rue d'Alsace
A demonstration of asking Syntropics a question and receiving an answer with its source document.
  • As seen in
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  • Winner ofentrepreneur award

Every output is only as sound as the quality of the data beneath it

Reports, valuations, budgets, decisions: all built on data typed by hand, then trusted indefinitely. One wrong number propagates upward and nothing flags it.

  • works_certificate_2025_hvac.pdf

    Page 3 of 4 · 380 KB

  • property_tax_2025_alsace.pdf

    Page 1 of 2 · 210 KB

  • Copie de DG_locataire (1).pdf

    Page 1 of 1 · 96 KB

  • etat_depenses_2025_FINAL_v2.pdf

    Page 7 of 12 · 1.1 MB

  • 2026-02_invoice_EDF_unit3.pdf

    Page 1 of 3 · 172 KB

  • 2026-Q1_service_charge_demand.pdf

    Page 2 of 6 · 540 KB

  • commercial_lease_unit3_2021.pdf

    Page 4 of 31 · 2.4 MB

    Annual rent after indexation on 1 January 2026, ILAT index for Q3 2025: €48,320.40 exclusive of tax and service charges.

  • 2026-Q2_invoice_cleaning.pdfNew

    Page 1 of 2 · 148 KB

    Common area cleaning, second quarter 2026 — total including tax: €6,410.00.

Spread across folders

Versions unclear

FigureValueSource
Building insurance€8,740.00
Service charges — Q1€17,899.20
Indexed rent — Unit 3€48,320.40
Property tax 2025€31,042.00
HVAC maintenance€4,950.00
Common area cleaning€5,820.00

Typed by hand

Manual errors

The root of it

Documents here, data there, automation on top — nothing linking them

The investor asks you which charges are recoverable on this asset. How do you answer?

Comparison of folders, property software, AI chatbots and Syntropics
FoldersProperty softwareAI chatbotsSyntropics
The factsearched manuallyentered by handguessedextracted
The proofburied in a filenot storedcan't citepage + passage
Kept currentmanuallymanuallystarts overautomatically
Cost per answersearch timere-entry timeprompt time, every timeseconds
Contradictionsunnoticedunnoticedunnoticedflagged on arrival

Easier to show than to explain.

Fifteen minutes on one of your own assets is the whole demonstration.

Syntropics links documents, data and automation in one connected place

One record: figures tied to their documents, updated on arrival, and ready to be acted on.

What you gain by using Syntropics

Evidence

Every figure points back to the passage that produced it. Not a filename, not a folder: the document, the page, the line.

Continuity

The knowledge sits on the asset, not with the person who did the work. Holidays, departures, new joiners — no handover pack, nobody to ask.

Upkeep

A new document doesn't sit beside the data, it updates it. Amendments apply on arrival, and every value keeps the ones that came before it.

Alignment

Your team, the property manager, the auditor, the investor — all working from the same record, each seeing what they should and nothing more.

Reach

No more asset-by-asset silos. Terms, charges and risks are comparable across the portfolio — so outliers surface before they become a problem.

Output

The record doesn't just answer, it produces. A charges reconciliation, a quarterly pack, a reply to the investor — built from the same sourced data, not rebuilt by hand.

Capacity

Figures arrive extracted instead of typed, so volume stops being a headcount question. Twice the assets, the same team.

Where our customers put it to use first

Before

Every statement you receive had to be checked against your own documents. That means extracting each line by hand and verifying it one by one.

With Syntropics

Every figure lifted from the document on arrival and cross-referenced against what you already hold. Discrepancies flagged, missing items marked, each one taken up with the sender on the line itself.

Before

Numbers copied in by hand, unproved. Every challenge means going back through the documents.

With Syntropics

Your own template, filled from current data. Each figure still carries its source. Exported in one click.

Before

Anything you wanted to know about an asset, you asked the person who handled it. Anything covering several assets, you asked several people and waited.

With Syntropics

Ask for the figure, get it with the passage it came from. Set one asset against the rest of the portfolio from data that is already current, or set an alert and let the change come to you.

Invoices — Q1 2026 · 14 rue d'Alsace
Invoice no.AmountVATStatementStatus
INV-2026-0288€1,076.40€179.40€1,076.40Verified
INV-2026-0511€3,412.80€568.80€3,412.80Verified
INV-2026-0413€4,950.00€825.00€4,380.00Flagged
INV-2026-0146€2,640.00€440.00€2,640.00Verified
INV-2026-0377€1,884.00€314.00€1,884.00Verified
INV-2026-0092€5,820.00€970.00No match
A demonstration of a folder of invoices being selected, read into a table, and cross-checked against a statement that arrives — with the two rows that disagree flagged, one opened onto both documents side by side, and a colleague tagged in a comment on it.
Quarterly reportLast export: Q3 2026
Exported

Quarterly report

14 rue d'Alsace — Q1 2026

The premises let at 14 rue d’Alsace comprise unit 3, with a usable area of 2,480 m² across three floors, let on a nine-year commercial lease.

Position at 31 March 2026

Indexed annual rent

€48,320.40

Service charges — Q1

€17,899.20

Property tax

€31,042.00

Service charges recovered, by quarter

Q1 25
Q2 25
Q3 25
Q4 25
Q1 26

Recoverable service charges for the quarter came to €17,899.20, against a four-quarter average of €15,410 — the increase falling in the plant renewal line.

Evidence

Direct Reference

Claim

Indexed annual rent from 1 January 2026: €48,320.40

Source

commercial_lease_unit3_2021.pdf

Last updated

4 Apr 2026

Verified by

Not verified

Page 4 · Clause 6 — Rent and indexation

Annual rent after indexation on 1 January 2026, ILAT index for Q3 2025: €48,320.40

A demonstration of a reporting template being filled from current data and exported.
All assetsParisRegionsLogistics
NameLocationTypologyFundEPC expiry date
14 rue d'AlsaceParis 10Mixed-UseAlsace Fund
22 quai de ValmyParis 10OfficeAlsace Fund
8 rue LafayetteLyon 3RetailRegional Fund I
South logistics parkVitrollesLogisticsLogistics Fund II
Beaulieu residenceNantesResidentialRegional Fund I
3 place BellecourLyon 2OfficeRegional Fund I
Nord distribution hubLilleLogisticsLogistics Fund II
27 cours MirabeauAix-en-ProvenceRetailRegional Fund I
Renew EPC — 3 place BellecourDue 12 Apr 2026. It reaches your Inbox when it falls due.
EPC expiry date

Matches (1)

20 Jun 202888%epc_2018_lafayette.pdf

Energy performance certificate — validity

Ground-floor retail unit, 8 rue Lafayette. Issued 21 June 2018, valid ten years, to 20 June 2028 inclusive. Energy class E.

CancelCorrectVerify
A demonstration of a data point column added to the assets list, answered for every asset from its own documents, each value checked against the certificate it was read from and signed off, and the earliest date turned into a dated task.

The practical questions

How long does it take to get started?
Under an hour per standard asset. Give us access on a Friday and the whole portfolio is usable by the Monday.
How do our documents get in?
Drag and drop them, or connect your existing data sources as they are. No migration, and no integration project to schedule.
Where is it hosted, and which model is used?
In the EU by default, another region on request, or your own cloud (BYOC). Bring your own model too — it is swappable, including one you host yourself.
What can it read?
All European languages, including portfolios that mix several of them. Word documents, presentations and Excel sheets, old leases, signed PDFs and poor scans are all handled, and answers come back in your own language.
Who can see what?
Access is set per asset, per role, per document and per data point — for internal and external collaborators alike.
What does it cost?
The product is built so that a question does not re-read your corpus: documents are read once and the answers are held, so it runs on a fraction of the tokens a general enterprise LLM would spend on the same portfolio — and costs less accordingly. Pricing is available on request.
Who owns the data, and can we leave?
Your documents and data stay yours, and are never used to train any model. Export everything at any time in standard formats; there is no lock-in. We are working towards ISO 27001 and SOC 2 Type II.
Danny Sinno, co-founder of Syntropics

Why this exists

Danny Sinno

Co-founderÉcole des Ponts & TUM

Everyone is adding automation on top of their data right now. But an automation inherits whatever the data got wrong, and across the seven companies I've seen from the inside, most of my time went into fixing that data. Chasing where a number came from, checking it against the document, correcting it. The documents were there and the figures were there; nothing but a person kept the two connected.

I kept wanting one place where everything was clean, readable and traceable, where I could see the source myself instead of taking a number on trust. I built a first version during an internship. Syntropics is that, done properly, with two ex-Google engineers. We are live today with a small number of customers.

See it on your own assets

From your own documents to sourced answers in an hour.