INSiDE Architects is a full service Architecture - Interior Design - Construction practice, founded by Christianna Perntetzi in 2018 after many years of working in the design industry.. Our approach produces a unique experience, through all the stages of each project, allowing us to achieve the holistic sense of experience across the range of spatial qualities within every project. This approach is applied to large scale projects or to specific elements and stages of a project, depending on our client's needs. The creative base of the practice is located in Athens and works with a multidisciplinary team that consists of highly qualified architects, structural engineers, interior designers as well as coordinates with contractors, craftsmen and landscapers


Our design approach is developed to be collaborative and environmentally sensitive based upon aesthetic and functional criteria, adapted to the site, the brief and the budget of each project.

We focus on the relationship between the building and the surroundings, the balance of volumes, the quality of the light, the combination of different materials by always investigating the creative interaction between detail and overview.

As a general belief for us each project should be unique, and be treated individually giving emphasis to the high architecture quality. We work closely with each client to establish new and better ways with the perception for a whole practical and spatial experience so that space becomes personal. Employing advancement in design, material fittings and construction technology each project for us is a valuable journey, with an enjoyable and challenging process which we improve every time.


Christianna is a registered Architect Engineer with a diploma from Democritus University of Thrace (2013) and received her Msc. in Environmental Design of Cities and Buildings at H.O.University (2018). She previously gained her Bachelor Diploma in Interior Architecture, Decoration and Object Design at the Faculty of Art and Design, T.E.I of Athens (2008).

Christianna has spent time both practicing architecture and interior design. Her experience beyond the studies becomes also from the familial company that occupy with the wood trade and construction that originates from each type of wood. Prior to that she has a strong record of being involved in the construction process and enjoys collaborating with craftsmen, constractors and traders.

Freedom of inspiration, originality in each step and disciplined process implementation compose her three-dimensional approach of life. The balance between them is a continuous, challenged and delighted composition.

What We Do


We are engaged in a wide range portfolio of projects including private residences, new built as well as refurbishments and renovations, summer houses, offices and commercial spaces taking place in a variety of locations and contexts.

Interior Design

We develop a comprehensive, bespoke design concept reflecting our client’s individual identity, inspired by the location. In that way, we offer a comfortable, quite luxurious space with balanced aesthetic sense.


Our services beyond the design field include Construction, Project Supervision, participation in the negotiation process with the contractors and craftsmen, measurement of quantities and materials, so that cost, program and construction specifications are addressed throughout all phases of development, ensuring that the project’s budget and schedule are met.

Custom Furnishing

We design range of products, for retail customers, designed and produced in our workshop or in collaboration with experienced craftsmen in Greece.