Agencies & property managers

Electronic signature for real estate

Residential leases, sales or management mandates, sales agreements, inventory reports, joint guarantees: digitalise all your files with a platform compliant with the ALUR Act, the ELAN Act and the SRU Act. Compatible with leading real estate software (Hektor, AC3, SPI, Immo-Facile) via Zapier, Make or webhooks — native connector available on request. 10-year archiving included, audit trail with probative value.

Signature électronique immobilier — clés d'appartement et mandat

Real estate use cases

Every document in the life of a real estate agency or property manager can be signed electronically on Certyneo, from transaction to rental management.

Residential lease

Furnished or unfurnished lease, Civil Code or 6 July 1989 Act: send the contract signed electronically by the landlord, tenant and possibly the guarantor. All mandatory annexes (EPC, risks, inventory report) can be included.

Move-in and move-out inventory report

Remote or on-site signature from a tablet: the inventory report is signed by both parties, archived, and automatically linked to the initial lease.

Sales mandate

Simple or exclusive mandate, with or without right of first refusal: send it to the seller, collect their advanced electronic signature (AES) and archive for 10 years in compliance with the Hoguet Act requirements.

Rental management mandate

Multi-year management mandate signed by the owner, with bounded delegation of powers. Automatic renewal reminders before expiration.

Sales agreement

Agreement signed remotely by buyer and seller, with deposit mentioned and 10-day SRU withdrawal period automatically timestamped by the audit trail.

Joint guarantee deed

Guarantor commitment signed by the guarantor with mandatory handwritten clauses (article 22-1 of the 1989 Act) converted to electronically signed fields and traced in the audit trail.

Why Certyneo for real estate

Six concrete benefits for your transaction, management and property administration teams.

File completed in 48 hours

Instead of multiple postal exchanges or physical meetings, the entire file (lease, guarantee, inventory report, annexes) is signed by all parties in 24 to 48 hours.

Reduction in logistics costs

No more printing, registered mail, scanning or travel expenses. According to FNAIM studies, digitalisation saves between £15 and £30 per rental file.

Optimised mobile signature

Your tenants and buyers sign from their phone in 2 minutes, without downloading an app. Journey in French, accessible and reassuring.

Enhanced probative value

Advanced signatures (AES) compliant with eIDAS: identification via dual OTP email + SMS, timestamped audit trail, evidence admissible in all courts.

10-year archiving included

All your mandates, leases and agreements are archived for 10 years with probative value, a duration compliant with document retention obligations for regulated real estate professions.

Intelligent multi-signer

Two flatshare tenants, a landlord and their representative, a joint guarantor: Certyneo orchestrates all signers (in series or in parallel) with automatic reminders.

Time saved per file

In real estate, the time lost between proposing a property and effective signature represents direct lost revenue: withdrawals, lettings that fall apart, compromises that drag on. According to sectoral studies, electronic signature enables:

70% reduction in administrative time per rental file, according to FNAIM studies on digitisation.
£15 to £30 saved per file on logistics costs (printing, registered mail, scans, travel).
Withdrawal rate halved thanks to fast signature — less delay = fewer opportunities for another property to attract the tenant or buyer.

You can estimate your ROI precisely with our free calculator in 2 minutes.

Integrations with your business software

Certyneo is compatible with the main agency and property management software used in France, via Zapier, Make or our webhooks. No native connector is published to date — one can be developed on request depending on your file volume.

Hektor

Popular transaction software for independent agencies: link it to Certyneo via Zapier/Make or via manual CSV export + batch sending from Certyneo. Native connector available on request.

AC3 & Apimo

Multi-agency solutions: compatible via our webhooks and Zapier/Make to return signature status to the property or tenant record. Bespoke integration possible via our REST API.

SPI (Imovia/Crypto)

Property management software: compatibility via Zapier or Make for sending management mandates, leases and inventory reports. Native connector under review, please contact us.

Immo-Facile and other CRMs

French real estate agency CRM: connection via webhooks or Zapier/Make to trigger automatic sending when a file reaches "ready to sign" status. REST API documented on /docs for bespoke integration.

Your software is not listed? The Certyneo API (documented on our API documentation) allows you to integrate it in a few hours. Contact us.

Compliance with ALUR, ELAN, SRU and Hoguet law

Electronic signature in real estate operates within a precise legal framework. Certyneo covers all applicable legislation.

Law of 6 July 1989 & ALUR law

The ALUR law (2014) and its implementing decrees govern the content of residential leases and annexes (EPC, risk report, information notice). All mandatory documents can be aggregated in the same Certyneo envelope for simultaneous signature.

ELAN law (2018)

The ELAN law explicitly recognised the validity of electronic private deeds in real estate matters and encouraged digitisation of lettings relationships. Certyneo enables the entire lease lifecycle (signature, amendments, renewal, termination).

SRU law — withdrawal period

For the sale of a residential property, the 10-day withdrawal period (article L271-1 of the French Land Code) runs from the first presentation of the signed deed. Certyneo precisely timestamps this date and exports proof in the event of dispute.

Hoguet law & French Civil Code

The Hoguet Act requires preservation of mandates for 10 years. Our plans include this archiving with probative value by default. Article 1367 of the Civil Code recognises electronic signature as equivalent to handwritten signature.

Electronic signature guide·eIDAS guide·Certyneo security·Free contract templates·Signer un mandat de gestion locative en ligne·Signer un mandat de vente immobilier en ligne·Signer un mandat exclusif immobilier·Signer un bail commercial en ligne·Signer un bail d'habitation en ligne

Frequently asked questions in real estate

Is an electronically signed residential lease legal in France?

Yes, without ambiguity. The ELAN Act (2018) explicitly confirmed the validity of leases in electronic form, and article 1367 of the Civil Code recognises electronic signature as equivalent to handwritten signature. Mandatory annexes (Energy Performance Certificate, risk statement, notice) can also be signed electronically.

How do you respect the 10-day SRU withdrawal period for a compromise?

Certyneo precisely timestamps the date the compromise is signed by both parties. The 10-day calendar period (article L271-1 of the French Land Code) runs from that date. You can export at any time the signature certificate with qualified timestamp to prove the start of the withdrawal period.

Are handwritten guarantor co-signer clauses possible electronically?

Yes. French case law accepts that the handwritten clauses provided for in article 22-1 of the 1989 law can be entered and electronically signed, provided that the guarantor actually reproduces them themselves (not a pre-filled copy-paste). Certyneo offers a mandatory entry field with validation and timestamp.

Can an inventory check be signed by two people in the same location?

Yes. Certyneo offers an "in-person signature" mode: both parties sign successively from the same tablet or smartphone during the visit, with strong identification (SMS OTP) for each. The audit trail retains the timestamp and geolocated IP.

Is Certyneo compatible with Hektor, AC3, SPI, Immo-Facile?

Yes, via Zapier, Make and our webhooks — there is no native certified connector on these software yet. Certyneo exposes a direct REST API and real-time webhooks to return signature statuses to your CRM. A native connector on one of these software is available on request: our integration team can support you with a bespoke deployment depending on your stack and volume.

How long are signed leases and mandates archived for?

Our plans include 10-year archiving with probative value, which meets the document retention obligations under the Hoguet Act for mandates and standard durations for residential leases. Documents remain downloadable at any time from your dashboard.

How much does Certyneo cost for an estate agency?

Our pricing starts with a free plan to test the service. Paid plans are based on the volume of envelopes sent per month, with tiers designed for agencies (5, 20, 100 files/month). See our /pricing page for details.

Can multiple documents be signed in a single envelope?

Yes. A Certyneo envelope can contain multiple PDFs (lease + DPE annexes + risk assessment + guarantee). The signatory reviews them in a single flow, signs once at the end, and the audit trail covers the entire package.

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