PropyPropy believes it has completed the first blockchain property transfer in the EU. The global real estate platform completed the sale – in Sevilla, Spain – which marked Propy’s official introduction to the EU market. Both the Spanish seller and French buyer used cryptocurrency (ETH-ETH) to transfer property ownership via Propy’s transaction platform.

“Blockchain technology continues to revolutionize the way people buy and sell properties across borders,” said Natalia Karayaneva, CEO of Propy. “The EU market can be a complex web of governments, brokers, and other entities making international property transactions difficult. Propy’s blockchain-enabled platform removes complexity resulting in a simple online transaction that is easy to complete and secure.

Natalia Karayaneva

The property process

Until now, national real estate transfers involved tedious processes. Purchasing property across borders introduced buyers and sellers from different tax and regulatory jurisdictions.

The traditional process is not only complicated and expensive but also vulnerable to fraud. Propy’s believes its platform:

  • simplifies complex processes
  • works within existing legal frameworks
  • provides participating parties with mutual trust – because of immutable encrypted records on blockchain.

This has the potential to fuel a thriving real estate market in the EU, which continues to receive increased attention from US, Russian and Chinese investors. According to Propy, investors look for sea-view villas starting from US$200,000 and, potentially heading in the millions of US$s (in Cyprus an EU passport comes with a property purchase of Euros 2M or more).

Using Propy

On a platform like Propy investors can browse and purchase remotely online – though Propy does recommend buyers:

  • visit the property in person beforehand
  • then execute the purchase online.

Propy’s blockchain-enabled platform reduces the need for intermediaries, for example escrow services. Plus, there is no need to print or scan any paperwork or visit banks, brokers or lawyers in person.

When a transaction occurs, the authorised notary:

  • logs into the Propy transaction platform
  • verifies the seller’s signature
  • at this point the ownership transfer is recorded both on the blockchain registry and state land registry.
Miguel Prados Rodriguez
Miguel Prados Rodriguez

I am very happy with the outcome of the sale,” said Miguel Prados Rodriguez, the seller of the property.

Propy made the entire process simpler than it would have been through a traditional sale. Their platform is user-friendly and gave me the peace of mind I needed to know the entire transaction was safe.

Propy transactions

The Propy smart contracts come with the capability to automate escrow. For each deal there is a unique escrow wallet on a read-only node, controlled only by the relevant Propy smart contract.

Even though nobody can access the node, Propy assumes it is possible to breach such a node. To counter this it provides an additional level of protection — a multi-signature (multi-sig) wallet.

Multisig wallets require M-of-N signatures in order to initiate a transaction. The multi-sig wallet is created using the buyer’s, seller’s and escrow’s wallets. Two out of three signatures can initiate the transfer from such a wallet.

When the deal has succeeded, the smart contract signals the escrow node to release the funds to the seller. At this point both the seller and escrow nodes have to sign the transaction. (If a deal cancels, the money returns to the Buyer.)

Enterprise Times: what does this mean

Propy proclaims this Sevilla transaction as being a great success. As a result, Propy says there is already another blockchain-powered property sale scheduled for upcoming months in Spain and for Propy this transaction marks an EU milestone on its mission to offer both consumers and governments a way to streamline complicated real estate transactions.

Yet Enterprise Times puzzles about the use of ETH. Did the buyer already have substantial, and sufficient holdings in ETH? What did either, or both, buyer and seller have to do to establish the many initiation steps within Propy’s blockchain? If the seller (who, from his LinkedIn details, is a crypto-currency investor) now has ETH, what will he do with them? Turn these into fiat currency?

While the necessity for the notary is explicit (and necessary in many EU countries), who educated the notary – for most notaries are not yet ‘notorious’ for their blockchain dexterity? How does Propy handle the reporting and tax obligations? How is Propy different from, say, REX?

These are just a election of questions which jump out. If the Propy model is to succeed it should expand the information on its web site, describing in (probably deadening) detail the steps and processes for each of a buyer and a seller – along with everything each must complete before a transaction can complete. A deeper description of the blockchain platform and technology would also be good.

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Charles Brett is a business/technology analyst consultant. His specialist areas include enterprise software, blockchain and enterprise mobility tech (including metering). Specific industry sectors of interest and experience include finance (especially systems supporting wholesale finance), telecommunications and energy. Charles has spoken at multiple industry conferences, has written for numerous publications (including the London Times and the Financial Times). He was the General Chair of the bi-annual High Performance Systems Workshop, 2005. In addition he is an author and novelist. His Technology books include: Making the Most of Mobility Vol I (eBook, 2012); Explaining iTunes, iPhones and iPads for Windows Users (eBook, 2011); 5 Axes of Business Application Integration (2004). His published novels, in the Corruption Series, include: The HolyPhone Confessional Crisis, Corruption’s Price: A Spanish Deceit and Virginity Despoiled. The fourth in The Corruption Series - Resurrection - has is now available. Charles has a B.A. and M.A in Modern History from the University of Oxford. He has lived or worked in Italy, Abu Dhabi, South Africa, California and New York, Spain, Israel, Estonia and Cyprus.


  1. I’m surprised that this has been so simple. The UK and several other European countries have requirements on Estate Agents to prove where the money came from for property transactions. This is to stop money laundering. In the case of cryptocurrency, this poses a significant challenge. It potentially leaves the buyer, seller and in this case Propy open to a lot of questions. Would be interesting to see how Propy believes it has overcome this challenge.


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