Diamas Hayama

DIAMAS HAYAMA

Apollo Architects & Associates

Diamas Hayama
© Masao Nishikawa

ARCHITECTS
Apollo Architects & Associates

PHOTOGRAPHS
Masao Nishikawa

AREA
967 m²

YEAR
2025

LOCATION
Hayama, Japan

CATEGORY
Residential Architecture

Diamas Hayama
© Masao Nishikawa

English description provided by the architects.

Morito Beach is the largest stretch of sand in Hayama, one of Japan's oldest coastal resort towns.

The beach is a popular destination where local residents and visitors alike enjoy activities such as windsurfing and walking along the seaside while taking in views of Enoshima Island.

Diamas Hayama
© Masao Nishikawa
Diamas Hayama
© Masao Nishikawa

Set directly on the shoreline, Diamas Hayama offers an ideal base for "workations" or a holiday home. Designed for sea lovers, this condominium development provides the rare luxury of a direct connection from the grounds to the beach.

Inside the shared entrance lobby, clerestory windows draw natural light into a spacious atrium while simultaneously ensuring privacy from the cluster of surrounding residences.

Diamas Hayama
© Masao Nishikawa
Diamas Hayama
© Masao Nishikawa

The result is a space that evokes the atmosphere of a hotel lobby. All 17 units face either west toward the sunset or south toward the promontory of Morito Shrine, and each features a lanai with a span of up to 2.7 meters.

This semi-open transitional space, equipped with outdoor furniture and decorated with greenery, allows residents to bask in the beautiful seaside setting.

Diamas Hayama
© Masao Nishikawa
Diamas Hayama
© Masao Nishikawa

The four-level (three aboveground and one basement) building secures a wide structural span by employing a reinforced-concrete rigid-frame structure with seismic shear walls.

Each unit presents a minimal exterior defined by deep brise-soleils and partition walls. The use of flat slabs allows for the elimination of dropped beams, resulting in a clean timber-panelled ceiling plane.

Diamas Hayama
© Masao Nishikawa
Diamas Hayama
© Masao Nishikawa

As a result, natural light reaches deep into the interior, giving rise to a bright, highly open living environment with the atmosphere and comfort of a private residence.

The Molteni kitchens installed in all of the units make it easy to host weekend gatherings with friends.

Diamas Hayama
© Masao Nishikawa
Diamas Hayama
© Masao Nishikawa

The top-floor penthouse, which spans 250 square meters, features a private rooftop accessible via an internal staircase, where residents can enjoy barbecues while taking in views of Mount Fuji.

The waterfront location creates a truly iconic beach house experience that is at once distinctive and contemporary luxury, while also embodying the concept of wellness-oriented architecture to deliver a lifestyle perfectly suited to the remote work era.

Diamas Hayama
© Masao Nishikawa


Diamas Hayama
© Masao Nishikawa


Diamas Hayama
© Masao Nishikawa
Diamas Hayama
© Masao Nishikawa
Diamas Hayama
© Masao Nishikawa


Diamas Hayama
© Masao Nishikawa
Diamas Hayama
© Masao Nishikawa
Diamas Hayama
© Masao Nishikawa
Diamas Hayama
© Masao Nishikawa
Diamas Hayama
© Masao Nishikawa
Diamas Hayama
© Masao Nishikawa


Diamas Hayama
Section
Diamas Hayama
Land Plan