Company overview

A family-owned luxury real estate agency in Marbella since 1989

Founded in 1989 by Diana Morales, Diana Morales Properties is an independent, family-owned boutique real estate agency specialising in luxury properties in Marbella, Benahavís and Estepona, on Spain's Costa del Sol.

With roots in the Marbella property market dating back to 1978, the company combines decades of local expertise, an established international outlook and a personalised approach to real estate. Since 2015, Diana Morales Properties has been a Knight Frank associate in Marbella, connecting its local expertise with an extensive international real estate network.

A heritage of experience, trust and evolution

Diana Morales began her career in Marbella real estate in 1978, developing an in-depth understanding of the local property market and establishing lasting relationships with international clients and property owners. In 1989, she founded Diana Morales Properties with a commitment to personal service, professional integrity and long-term client relationships.

Over the decades, the company built a strong reputation in Marbella's luxury property market, advising buyers and sellers of exceptional homes and developing relationships that often extend across generations.

In 2007, Diana's daughter, Pia Arrieta, joined the family business, bringing a new perspective and contributing to its continued development and modernisation. As Partner, Pia has played a central role in shaping the company's strategic direction and organisational evolution, strengthening its management structure and introducing a Strategic & Advisory Board to support long-term planning and strategic decision-making.

An important part of this evolution has been the development of a dedicated executive management structure. Mariano Beristain, who became Sales Director in 2020, was appointed Managing Director & Partner in 2025. He now leads the company's day-to-day operations and commercial activities, providing executive leadership while maintaining the values and personalised approach on which Diana Morales Properties was founded.

International connections have been part of the company's identity since its earliest years. From 1989 to 2005, Diana Morales Properties was the exclusive Costa del Sol representative of Sotheby's International Realty, followed by a ten-year association with Christie's International Real Estate from 2005 to 2015. The company was also a founding member of the European Real Estate Network (EREN) in 2004 and a member of Leading Real Estate Companies of the World from 2005, maintaining both memberships until 2015. These longstanding relationships reflect the international outlook that has characterised the company from its beginnings.

In 2015, Diana Morales Properties began its association with Knight Frank, marking a new chapter in its international history. As a Knight Frank associate in Marbella, the company continues to combine the personal service and local expertise of an independent, family-owned agency with the global reach and resources of one of the world's leading real estate consultancies.

Local expertise with international reach

Diana Morales Properties specialises in the luxury residential markets of Marbella, Benahavís and Estepona, while also covering other sought-after locations along the Costa del Sol and surrounding areas, including Finca Cortesin, Sotogrande and the coastline east of Marbella towards Málaga.

The company advises international and domestic clients on the purchase and sale of luxury villas, apartments, penthouses, townhouses, residential plots and development land, combining in-depth local market knowledge with a personalised approach to every transaction.
Through its international professional relationships and established networks, Diana Morales Properties connects the Marbella property market with buyers, sellers and real estate professionals around the world.

Throughout its history, the company's philosophy has remained consistent: to prioritise quality over volume, build relationships based on trust and provide informed, discreet and professional advice.

Diana Morales Properties continues to bring together the personal attention of a family-owned boutique agency, the experience of an established Marbella real estate business and the international perspective required in today's luxury property market.