About us

For those who do not seek compromise

Harbor Development is a premium Tri-City developer, formed by a team of three partners with many years of experience in the real estate industry. Our investments are built in the best locations in Gdansk, Sopot and Gdynia, combining timeless architecture with functional solutions and the highest quality workmanship.

We focus on intimate projects with a limited number of flats that provide privacy, comfort and prestige. We take care in every detail to ensure that the spaces we create are not only beautiful but also practical - from intelligent technological solutions, to high-end materials, to thoughtful flat layouts.

Our mission is to create places you want to live in - unique, robust and timeless.

Mariusz Ratkowski
CEO Founder

Founder and CEO of Harbor. Has been passionately exploring the premium real estate market for over five years, combining investment intuition with an analytical approach to projects. He specialises in finding exceptional land, creating financial models and sales strategies. He is responsible for building the team and leading the entire investment process - from vision to sale. Effective, determined and acts without undue delay. Adheres to the principle that quality and speed can go hand in hand if accompanied by a clear vision and consistency in action.

Krzysztof Gąsior-Dąbrowski
Chief Architect

Architect with more than ten years of experience in premium property design. In his work he focuses on purity of form, functionality and solutions far beyond market standards. He has a unique aesthetic sense and does not recognise compromises in quality. He creates spaces that are not only beautiful, but above all thoughtful and comfortable for everyday use. At Harbor, he and his team at GDA ARCHITEKCI are responsible for the architectural concept , design documentation, consistency of vision and supervision of implementation.

Przemyslaw Janiszewski
Member of the Management Board

I have been active on the construction market for more than 25 years and held key management positions in international corporations. During my career, I have been responsible not only for the Polish market, but also for Slovakia, the Czech Republic, I have been in charge of and supervised the activities of companies in Germany and the Benelux countries, as well as managed the company's activities in Finland on behalf of the Supervisory Board. Today I am active within my own structures. At the same time, I am active in other fields. I am a Polish representative in sports bridge. I have my own foundation, Bridge for Business, which supports mental sports such as sports bridge and chess and combines these activities with the world of art.
In the company I am responsible for the execution and investor side. Construction, energy, but also art and mental sports are my passions. The combination of all these gives us an amazing effect and this is what our investments are - unique.

They wrote about us

Harbor Residence Sopot - an intimate premium development

An elegant, modern building with a limited number of flats is under construction at 6 Swiemirowska Street. The bright architecture, large glazing and terraces open up the space to the greenery, and the high standard includes a Smart Home system, air conditioning and an underground garage, among other features.

Oliva - flats in a new villa

Harbor Development is constructing Villa Abraham 22 here with just eight flats. It is being built on a sizable plot of land. The flats will have large glazing and glass balustrades will provide contact with the greenery surrounding the building. It is also close from it to the entrance to the forest at Abrahama, where you can enjoy the surrounding old-growth forest.

Top investments prestige report - analysis and ranking

Abrahama 22 is an intimate development in the heart of Oliwa, comprising just eight flats in a modern building. The bright body, large glazing and terraces open up the interiors to the greenery, and the standard of finishings includes underfloor heating, air conditioning and a Smart Home system. Residents will have an underground garage with chargers for electric cars and a bicycle room at their disposal.

Feel free to contact us

We are happy to answer any questions you may have about your investment, the purchase process or financing offer. Fill in the form and our team will get back to you as soon as possible.