Architectural Designation - 35:35 Slope House is designated as KeyPrice Signature Architecture in recognition of its exceptional response to landscape-driven residential design and its seamless integration with one of Poland's most dramatic natural settings. Designed by 77 Studio Architecture, led by Paweł Naduk, and completed in 2020, the residence is carefully embedded into the escarpment overlooking the Vistula River in Płock, Masovian Voivodeship. Rather than occupying the site, the architecture descends with it, transforming a challenging 35-degree slope into a sequence of interconnected living spaces, panoramic terraces and carefully framed river vistas. The result is a residence where architecture and topography exist as a single composition.

More than a contemporary family home, 35:35 Slope House is a remarkable study in environmental integration, architectural precision and spatial experience. Occupying 312 m², the residence is organised around a C-shaped plan that shelters a private courtyard from prevailing winds while maintaining uninterrupted views toward the river valley. Its defining infinity pool visually merges with the Vistula River beyond, dissolving the boundary between architecture and landscape. Widely published internationally and honoured as Poland's Best Single Residence at the European Property Awards 2023–2024, the project has established itself as one of Eastern Europe's most celebrated contemporary houses.

If the data leads—what would you be prepared to invest to secure this property?

Courtesy

Architecture - 77 Studio Architecture

Lead Architect - Paweł Naduk

Photography - Piotr Krajewski

✦ International Recognition

Recognised internationally for its innovative hillside design and exceptional relationship with the natural landscape, 35:35 Slope House has been widely published across leading global architecture and design platforms. Its thoughtful integration of topography, structural engineering and minimalist architecture has positioned the residence among Poland's most distinguished contemporary private homes.

Featured By: • ArchDaily • Architecture Lab • METALOCUS • Archilovers • Design and architecture journals across Europe

Awards:  • European Property Awards 2023–2024, Best Single Residence – Poland

Design Significance

35:35 Slope House is defined by its extraordinary dialogue with the landscape. Built directly into the steep escarpment of the Vistula River, the residence embraces the site's natural topography rather than altering it. Three cascading terraces—including a panoramic rooftop garden—allow occupants to experience the landscape from multiple elevations, while expansive glazing continuously frames the changing river scenery. Every level reinforces the architectural narrative of descending toward the water, creating an immersive spatial experience unique to the site.

Material restraint plays an equally important role in the home's architectural identity. Dark graphite fibre-cement panels allow the building to recede into the surrounding vegetation, while exposed concrete, natural stone and warm timber finishes create a refined interior atmosphere. The dramatic infinity pool extends toward the river's horizon, visually merging with the water below and becoming the residence's defining architectural gesture. Together, these elements demonstrate how contemporary architecture can achieve visual impact through precision, proportion and environmental sensitivity rather than monumentality.

✦ Signature Features

• Architecture embedded within a 35-degree river escarpment

• Panoramic infinity pool visually aligned with the Vistula River

• Three cascading outdoor terraces including a rooftop garden

• C-shaped plan creating a protected internal courtyard

• Floor-to-ceiling glazing framing uninterrupted river views

• Graphite fibre-cement façade integrated with the natural landscape

• Contemporary minimalist architecture responding directly to topography

• Exceptional indoor-outdoor spatial continuity

• Award-winning environmentally integrated residential design

✦ Market Intelligence

Design Concept - 2016

Construction - 2017–2020

Completion - 2020

Living Area - 312 m²

Configuration - Private single-family residence

Public Market History

35:35 Slope House was commissioned as a bespoke private residence and has never been publicly offered for sale or marketed through the international luxury property market. No verified public transaction history has been recorded, reinforcing its exclusivity as a privately owned architect-designed residence.

Current Market Position

Today, 35:35 Slope House is recognised as one of Poland's benchmark contemporary residences, celebrated for its architectural quality, award-winning design and extraordinary integration with the Vistula River landscape. Its international editorial recognition and scarcity of comparable architect-designed hillside homes position it among the country's most significant modern residential properties.

KeyPrice Estimated Market Value (2026)

€2.8 Million – €3.8 Million

US$3.2 Million – US$4.4 Million (Estimated)

KeyPrice Assessment

35:35 Slope House derives its value from a rare combination of architectural distinction, environmental integration and international recognition. Designed by 77 Studio Architecture as a bespoke residence responding directly to the dramatic escarpment of the Vistula River, the property demonstrates exceptional planning, engineering and spatial innovation. Its award-winning design, extensive international publication record and absence from the public market establish it as one of Poland's most desirable architect-designed residences. This estimate represents KeyPrice's independent editorial market assessment and should not be interpreted as a formal valuation or certified appraisal.