Mosaic Ventures






Our Vision

Our Mosaic consists of the endless variety of architectural typologies, traditions, landscapes, memories, and experiences scattered around Greece.

Mosaic Ventures was established by a team of entrepreneurs from varying professional backgrounds in business, architecture, construction, real estate, and the tourism industry, with strong hands-on experience both locally and internationally.

Our vision is to draw from Greece’s unique characteristics in Mediterranean lifestyle, diverse culture, and distinct landscape and create strong brands in design, lifestyle projects, real estate and tourism.

With strong track record in architectural design, project management, project delivery, developments, and service excellence, we envisage to enrich and cherish the Mosaic.

Mosaic Design Studio

Architecture | Interior Design


A collaborative design platform of Architects, Engineers, and Designers, with a common mission to produce a rich mosaic of ideas and design solutions for our clients.

Mosaic [ moh-zey-ik ] – (architecture)1 a mosaic of Architectural typologies, of diverse landscapes, of traditional influences and historic landmarks in Greece.

Mosaic [ moh-zey-ik ] – (experiences)2 the images of your summer, your lifestyle options and unique experiences.

Mosaic [ moh-zey-ik ] – (design studio)3 a platform for architectural ideas, concepts, and projects that enhance Greece’s competitive advantage in unique living, design, real-estate, and tourism.

  • Masterplanning
  • Conceptual Design
  • Permitting
  • Construction Details
  • HVAC + Electromechanical
  • Structural Engineering
  • Net Zero Energy Design
  • 3D Visualisations
  • 3D Models

Mosaic Villas |

Design | Engineering | Construction | Property Management


We focus exclusively on villa-type properties throughout Greece, providing end-to-end service offering to our clients, through our dedicated brands. Our goal is to offer our clients villa projects that capitalize on the Mediterranean lifestyle, while the property can produce revenue to fund its maintenance, running cost and produce income for its owners.

Mosaic Villas is a specialist brand offering Design, Construction and Property Management services, in custom turn-key solutions.

Our design is modern, offering unpretentious luxury in buildings seamlessly placed in the landscape. The construction quality is of a very high standard and our projects are always completed in time and on budget.

After the completions of construction, we offer property management schemes handling all issues, as if we were catering for our own villa. We design property management packages tailored to the owner needs, leaving them free to enjoy their villa for personal use always in a pristine condition.


Mosaic Villas generates villa estate investments that offer turn-key solutions for future villa owners. The projects aim for villa complexes of supreme design, construction and service excellence.

  • Design & Construction – through in-house capability and an established network of architects and engineers, offering bespoke designs to our clients.
  • Property Management – a complete range of property management services to our clients, ensuring trouble-free ownership in Greece and the property always in perfect condition to house the owners and their guest.
  • Realty services promoting unique Greek villas to the international markets.

Blue Mosaic |

Luxury Villa Rentals | Yachting | Experiences


Blue Mosaic offers luxury villa rentals through a fine selection of exceptional Greek villas, set in inspirational and exclusive locations. Or as we prefer to say, Villas that Host Experiences.

We are not a Travel Agent, nor simply a Villa Agent. We aspire to be an innovative Experience Provider and this is reflected in the 3 core elements of our service offering –

Villa | Yachting | Culture

Blue Mosaic villas are exemplified by unique design, unpretentious luxury, a sense of freedom; a place where you can feel like home with ease, experiencing a great lifestyle.

At Blue Mosaic we’re always ready to provide our guests with the ultimate vacations combining villa holidays with yachting and a wide range of top-notch activities, exclusively designed and tailored to our clients’ taste.

  • An experiential tourism product through exploitation of 3 core elements – Villas, Yachting, Culture.
  • Luxury Villa Rentals offering personalized services.
  • Blue Mosaic check-in experience, welcoming the guests with a welcome pack, show the villa and discuss their needs during their stay.
  • Property specific, carefully selected and continuously updated travel tips and recommended experiences.



  • Concept Studies

  • Architectural Planning

  • Custom Design

  • Turnkey Engineering

  • Redevelopment Schemes


  • Feasibility Studies

  • Project Definition

  • Project Management

  • Risk Management

  • Construction


  • Strategy

  • Market Analysis

  • Investment Options

  • Business Planning

  • Partnerships & JVs

The Team

Theodore Dionysopoulos

Founding Partner

With studies in Aerospace Engineering and in Engineering Business Management, for more than 8 years, Theodore built a successful career in the U.K and the U.S.A. in the aerospace and defense sector, leading and successfully delivering a number of high-profile, multi-million, international collaborative programs. Upon his return to Greece, he spent 2 years as a Special Advisor to the Hellenic Ministry of Infrastructure, Transport and Networks, providing insightful advisory services to the ministry’s leadership on policies, strategies and operational matters.

He subsequently set-up an independent management consulting practice, successfully delivering projects, both in Greece and abroad, for public and private organizations, in the areas of corporate strategy, investment analysis, feasibility studies for major infrastructure projects and restructuring for organizations in operationally-intense markets. In parallel, he was a founding member of the Industry Disruptors – Game Changers, a NGO to promote innovative entrepreneurship in Greece and South East Europe.

His latest endeavor, has been his involvement with MOSAIC VENTURES, as a Founding Partner, leading the strategic direction and business development, with the vision of delivering innovation, performance and service excellence in Consulting, Engineering and Project client engagements, exploiting the emerging market environment in Greece across key sectors that offer competitive advantages.

A regular movie-goer, with a passion for skiing, sailing, gardening and wine-making, also involved as a Science & Engineering Ambassador working with primary schools.

Dionisis Souris

Founding Partner

Having studied in Architecture and Urban Planning in the UK, Dionisis has a rich portfolio of design and construction work experience. Early on, he gained professional experience working as a member of a multi-disciplinary Design team for an international Design & Engineering firm, specializing on airport terminals and other major public infrastructure assets. In 2000, he co-founded SOURIS & ASSOCIATES, an Athens based Design and Construction practice, assuming full involvement in 2002 following the completion of his Master’s studies.

Since 2005, Dionisis led the Architectural and Planning team of the firm, with design works featuring in several Greek forums and editions. Between 2002 and 2014, SOURIS & ASSOCIATES have designed and constructed a series of private, public and development projects, with housing complexes, private villas, office buildings and other commercial buildings forming a diverse portfolio.

In 2014, with Theodore and George, Dionisis co-founded MOSAIC VENTURES, a Consultancy and Engineering practice, with a vision for innovative Design solutions that reflect Greece’s endless opportunities in the Real Estate and Tourism sectors.

With passion in various design forms, he has been involved in several urban local redevelopment projects. A regular traveler, seeking in-depth knowledge of traditional architecture and building typologies, new design proposals and other installations or exhibitions, all over the world.

George Souris

Founding Partner

George studied Civil Engineering in the UK, focusing on High Strength Concrete and in applications of high performance fibre reinforced cementitious composites for retrofitting purposes.

He started his professional career, being involved in Construction Project Management, gaining significant experience on high-profile housing development schemes, before continuing with his studies pursuing a Master’s degree in the Real Estate Economics and Finance at the London School of Economics.

In 2002, he joined SOURIS & ASSOCIATES, a design, construction and real estate practice, as an Associate, assuming the position of Head Project Manager. He was responsible for managing the construction phase and successfully delivering a series of residential development projects, gaining first-class project management experience and considerable on-site practical knowledge.

Lately, he has been a co-founder at MOSAIC VENTURES, where he is in charge of the analysis section for investment projects in the real estate and tourism sectors.

A keen walker, both for exercise and for “switching-off”, he is occasionally involved in branding and promoting top-end organic Greek produce for the export markets, through his own brand 15º.