Business story · PropTech · Artificial intelligence

In just two weeks, an idea born from experience in construction and real-estate brokerage became RealtorList.Net: an AI-powered directory and resource hub that already brings together more than 480 agencies in the Costa del Sol and aims to help buyers and sellers choose the right professional first.

• Published: 25 July 2026
• Coverage: Spain and Costa del Sol
• Topics: entrepreneurship, PropTech, AI and transparency
• Review: RealtorList.Net editorial team

The idea: find the right person first

Major property portals have made it easier to access thousands of listings. However, an abundant supply alone does not answer the most important question for anyone looking to buy, sell or invest: which professional should I work with?

In highly active and fragmented markets, listings from different sources, outdated versions, reposted listings and properties offered by more than one intermediary can coexist. Not every case is incorrect or amounts to illegitimate duplication, but for a visitor it is difficult to determine which information is still current, who manages the relationship with the property, and which professional truly knows the area.

RealtorList.Net was born from a simple premise: before browsing hundreds of listings, users should be able to compare professionals by location, languages, services, specialisations, public experience and contact options. The property remains the goal; a relationship of trust becomes the starting point.

“We did not want to build another place with more listings. We wanted to help people find the professional who can help them understand the market, reduce uncertainty and make better decisions.”

From real-world experience to an AI-built solution

The project stems from its founder’s firsthand experience as a builder and real-estate agent in Costa del Sol. In this environment, reputation and digital visibility are not extras: they are often the first filter for an international buyer who researches for months before making contact.

The example is familiar. A buyer living in Germany can research Marbella, Estepona, Benahavís or Mijas from thousands of kilometres away. Before sharing their budget or travelling, they need to check who is behind an agency, which languages it serves, which areas it knows, how it explains the process and whether it offers a clear way to get in touch.

Artificial intelligence made it possible to accelerate tasks that would normally require separate stages: organising the concept, defining information structures, classifying content, supporting development, reviewing copy and preparing a knowledge base. Real-estate experience provided the judgement; AI expanded the ability to turn it into a product.

The result is not a demonstration that a machine can replace a professional team. It is an example of how someone with industry knowledge can use AI tools to prototype, organise and execute a vision much more quickly.

“AI did not come up with the idea or experience the problem. It helped us expand the idea, turn scattered experience into a structure and build more in less time.”

What visitors can find

Exact availability depends on the account type, plan and status of each profile. RealtorList.Net maintains a public comparison of plans and features and expressly states that its services do not guarantee traffic, rankings, leads, sales or financial results.

An assistant that informs and facilitates the next step

The vision of RealtorList.Net's assistant goes beyond answering an isolated question. For example, when a visitor asks about an agency that serves clients in German, operates in a specific area or has experience with a particular type of transaction, the system can use publicly available information to guide the search and display related profiles.

This guidance should be understood as a discovery aid, not as a quality certification or an absolute ranking of the “best.” The final decision rests with the user, who should verify identity, experience, terms, authorisations, documentation and independent advice before engaging a professional or completing a transaction.

Why digital trust matters especially in Costa del Sol

International demand carries significant weight in the Spanish market. According to the College of Registrars, foreign buyers accounted for 14,6 % of registered home purchases in Spain during 2024. In 2025, the annual percentage was 13,5 %, with more than 24.200 transactions in the fourth quarter alone.

These figures help explain why an agency's digital identity matters before the first contact. An international buyer does not assess only a property. They also compare taxation, financing, planning regulations, maintenance costs, legal certainty, connectivity, services, language and usage possibilities.

For a local agency, the opportunity lies in presenting this knowledge in a clear and verifiable way. For the buyer, the priority is to reduce information asymmetry. RealtorList.Net aims to position itself at the meeting point between both needs.

The following RealtorList.Net guides can also be consulted on this process:

• How to attract international buyers to an agency in Costa del Sol
• How to improve a real estate agency's digital authority
• How to generate real-estate leads without relying solely on portals
• Artificial intelligence for real-estate agencies: tools and practical applications

A regulated market, but with non-uniform professional requirements

Describing the Spanish market as “unregulated” would be inaccurate. There are national consumer protection rules, obligations regarding the information provided in property sales and rentals, housing legislation and regional regulations. There is also the regulated professional role of the Real Estate Property Agent.

The historical challenge has been different: the requirements for access, registration or professional membership to carry out brokerage activities have not been identical throughout the country. Some autonomous communities have created specific registers and requirements, while others have followed different models.

In Andalusia, Law 5/2025, of 16 December, provides for a mandatory Register of Real Estate Agents Specialising in the Residential Sector and establishes obligations relating to information, transparency and consumer protection. Its application must be interpreted in accordance with its implementation timetable and the regulations in force at any given time.

For buyers and sellers, this reality reinforces the value of checking who is involved, what services they provide, what documentation they use, which insurance or guarantees apply, and which independent professionals should review the transaction.

A three-way benefit model

For buyers and sellers

Less time searching blindly, more context for comparing professionals, and easy access to initial information before sharing details or starting a business relationship.

For agencies and agents

A more organised digital identity, visibility by area and language, the ability to explain specialisms, and an additional way to be discovered by people with relevant needs.

For the real-estate ecosystem

More incentives to maintain clear public information, distinguish the status of each profile, and compete through experience, service, transparency and local knowledge—not merely through listing volume.

“The ideal situation is simple: the visitor finds guidance, the professional receives a relevant opportunity, and the market benefits from a more informed relationship. It is a benefit for all three parties.”

What makes this business story different

The speed of development is striking, but it is not the only story. The story reveals a broader transformation: tools that until recently were reserved for technical teams now allow a professional in any sector to turn accumulated experience into a functional platform.

That does not remove the difficult tasks. Data must be reviewed, sources must be maintained, privacy must be protected, public information must be updated, and recommendations must avoid promises that cannot be substantiated. Technology accelerates execution; responsibility for the product remains human.

RealtorList.Net is at an early stage. Its next challenge is not to add unlimited features, but to improve profile quality, expand professional participation, maintain useful information, and demonstrate that starting with trust can complement the traditional property search.

Methodology and transparency: the figure “more than 480 agencies” comes from the inventory of published profiles available for this editorial review. The approximate duration of two weeks describes the initial conceptualisation and development process according to the founder and does not constitute an independent audit of development hours. Profiles, services, plans and terms may change. “Listed”, “featured” and “verified” describe different statuses. RealtorList.Net does not guarantee leads, sales, rankings, financial results or a professional’s suitability for a specific transaction.