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Exterior view of a central courtyard with pathways, seating areas and surrounding residential buildings.

Harbour Islands Zollhafen Mainz

Exterior view of a planted courtyard with balconies and surrounding residential buildings.
Exterior view of the façade with profiled balconies and staggered window openings of a residential building.

Maritime Living with an Urban Character

With Fischerhof and Lotsenhof, two independent building ensembles have been created that translate the character of the Mainz Zollhafen into a maritime architectural language while offering urban living quality. The architecture does not use the waterfront merely as a backdrop but integrates it into the spatial concept. Circling canals and walkways make living by the water physically tangible and shape the identity of the neighbourhood.

Fischerhof und Lotsenhof als zwei eigenständige Gebäudeensembles auf zwei Hafeninseln  

183 Wohnungen mit direktem Bezug zum Wasser

8 Meter breite Grachten rahmen und prägen die Inseln

2 begrünte Innenhöfe verbinden öffentlichen Raum und Privatheit mit hoher Aufenthaltsqualität

The project forms part of the transformation of the former customs harbour into an urban district. The challenge was to create a clear urban structure that fits into the context while establishing distinct addresses. The solution: perimeter block development with permeable courtyards that define the outer edges while linking internally with the surroundings.

Fischerhof and Lotsenhof draw on the materiality of the site yet interpret it individually: While Lotsenhof presents a lively appearance with light beige tones and accentuated balcony balustrades, Fischerhof features red‑toned façades inspired by Mainz sandstone. The articulation of the townhouses is deliberately emphasised through changes in materials and structural rhythm. The alternation between brick and precast concrete elements visually connects the two façades.

The encircling eight‑metre‑wide canals are not merely a design motif but significantly shape the residential quality. Walkways and private outdoor areas create a direct and tangible relationship with the water. At the centre of the perimeter block structure lie generously landscaped courtyards. These serve as communal outdoor spaces and offer a quiet, contained counterpoint to the openness of the waterfront location.

Project
Harbour Islands Zollhafen
Location
Mainz
Client
Trei Real Estate Deutschland GmbH
GFA
16.500 m²
Completion
2024
Exterior view of a residential building with patterned balconies and a covered passage leading to the Lotsenhof courtyard.
Exterior view of the Fischerhof residential building with a covered passage leading to the courtyard.
Exterior view of the Fischerhof residential building with a covered passage leading to the courtyard.
Exterior view of a planted courtyard with balconies and surrounding residential buildings.
Exterior view of a central courtyard with pathways, seating areas and surrounding residential buildings.
Aerial view of a residential ensemble with green roofs and courtyard‑shaped inner areas.