Kobban — Private Island Development Opportunity In The Finnish Archipelago

Kobban is a private island in the Finnish archipelago, located approximately ten minutes by boat from Västanfjärd harbour. Positioned between the inner and outer archipelago, the island combines two qualities rarely found together: the open horizons and rugged landscape of the outer islands, and the natural shelter provided by the surrounding smaller islands. The result is a setting that feels both secluded and expansive, with protection from the strongest winds and waves.

Despite its sense of remoteness, Kobban remains easily accessible. Västanfjärd harbour is approximately two hours by car from Helsinki and 1.5 hours from Turku, making the island a practical retreat without compromising the privacy and tranquillity of island living.

Spanning approximately 1.9 hectares (4.7 acres), Kobban is characterised by exposed bedrock, rocky shorelines, and wooded terrain. A central rocky rise divides the landscape into two distinct headlands, creating natural separation and allowing buildings to be positioned with privacy, shelter, and uninterrupted views of the surrounding archipelago.

Kobban is offered as a bespoke island development opportunity rather than a completed property. Project Ö has prepared a comprehensive master plan outlining the island’s overall layout, access points, and proposed building locations. The individual buildings have not yet been designed or constructed, allowing the future owner to shape the architecture and interiors according to their personal preferences, lifestyle, and requirements.

The master plan includes an initial proposal for the arrangement of the buildings, illustrated in the listing’s image gallery. This serves as a starting point for a collaborative design process, rather than a fixed architectural solution. Together with the future owner, Project Ö will develop the architectural concept, ensuring that each building responds to both the landscape and the owner’s vision. We will then manage the entire development process, from detailed design and planning permissions to tendering, construction, and final handover.

Kobban’s shoreline offers a variety of settings and orientations. The northern side features a steep, deep-water profile, providing a natural location for a private harbour and jetty. Along the western shoreline, the rocky terrain offers an ideal setting for a waterfront sauna, with direct access to deep water for swimming and open views towards the evening sun and northwest sunsets.

Exceptionally, Kobban benefits from two separate building rights, with the entire island designated as a buildable area—an uncommon degree of flexibility in Finnish coastal planning. This allows the buildings to be positioned in response to the natural topography, views, and orientation, rather than being restricted to narrowly defined building zones.

The listed price represents an estimated total investment for a fully completed island, including the property itself, a main residence, guest house, sauna building, private jetty, walkways, and the necessary infrastructure for water, electricity, and wastewater management, as well as planning permissions and approvals. The final investment will depend on the architectural design, building sizes, material selections, and individual requirements of the owner.

Kobban presents an opportunity to create a private island retreat conceived as a cohesive whole—from the placement of each building to the smallest architectural detail. With the master plan already prepared and Project Ö overseeing the entire development, the future owner can focus on shaping a place that is entirely their own.

We welcome enquiries and would be pleased to discuss the island, its development potential, and the possibilities for creating a bespoke private retreat in the Finnish archipelago.