Apartment Complex in Omori-cho

Apartment Complex in Omori-cho
© Takuya Seki
Apartment Complex in Omori-cho
© Takuya Seki

Apartment Complex in Omori-cho

SEITARO ASO ARCHITECTURE INC.

ARCHITECTS
Seitaro Aso, Arata Noguchi

STRUCTURE ENGINEERING
Tatsumi Terado Structural Studio

MEP CONSULTANTS
Ryo Miura LLC

CONSTRUCTION
IWAMOTOGUMI CO., LTD.

MANUFACTURERS
Aica, Sangetsu, Toli

PHOTOGRAPHS
Takuya Seki, Arata Noguchi (SAA)

AREA
393 m²

YEAR
2023

LOCATION
Ota City, Japan

CATEGORY
Apartments, Residential

The apartment complex stands on a site facing a shopping street.

The street is busy with people and cars coming and going throughout the day.

Apartment Complex in Omori-cho
© Takuya Seki
Apartment Complex in Omori-cho
© Takuya Seki
Apartment Complex in Omori-cho
© Takuya Seki

The client requested that the first floor be rented to commercial tenants in line with the surrounding buildings and that the second through fifth floors be residential units primarily for single occupants.

The project's main theme was to create a calm and relaxing living environment by blocking the view and sound from the street while still conveying the liveliness of the shopping district.

Our idea was to adjust the relationship between inside and outside by running concrete bands around the four sides of the building, floor by floor, and varying the height.

Apartment Complex in Omori-cho
© Takuya Seki
Apartment Complex in Omori-cho
© Takuya Seki
Apartment Complex in Omori-cho
© Takuya Seki

The height is up to 1100 mm from the floor on the second floor, 850 mm on the third floor, and 600 mm on the fourth floor.

The upper floors are more open, and the rooms are brighter.

In general, larger windows on the lower floor would be better, considering room brightness alone.

Apartment Complex in Omori-cho
© Takuya Seki
Apartment Complex in Omori-cho
© Takuya Seki
Apartment Complex in Omori-cho
© Takuya Seki

But in this case, glances and sounds from the shopping district are significant issues, so the concrete bands on the lower floors rise the highest to block them.

The concrete bands, a response to the surrounding environment, were carefully detailed to give the building a unique character.

Drainage joints in the balcony eaves were omitted to enhance the voluminous impression of the concrete bands.

Apartment Complex in Omori-cho
© Arata Noguchi (SAA)
Apartment Complex in Omori-cho
© Takuya Seki
Apartment Complex in Omori-cho
© Takuya Seki

Shoring posts were slightly lowered at the eaves side during concrete casting, creating a slope to prevent water intrusion.

The windowsills on the adjacent land boundary side, eliminating flashing hardware, were shaped using mortar so that the top of the drainage slope aligns with the top of the concrete bands, reducing unnecessary lines.

The white-painted bearing walls cover outdoor units of the air conditioners and water heaters on the balconies, enhancing the abstract impression of the elevation and creating a clean and crisp appearance.

Apartment Complex in Omori-cho
© Arata Noguchi (SAA)
Apartment Complex in Omori-cho
© Arata Noguchi (SAA)
Apartment Complex in Omori-cho
© Arata Noguchi (SAA)

Windows were opened between the concrete bands and framed with basswood plywood on the interior side.

The floor-length windows facing the street also have 400 mm-deep basswood plywood frames.

Apartment Complex in Omori-cho
© Takuya Seki
Apartment Complex in Omori-cho
© Takuya Seki

They allow people to touch and lean on them, creating a place to stay for a moment at the interface between the shopping street and the interior.

The skirting boards and wooden doors were also made of the same material to avoid spaces assembling readymade products only while considering the functional aspects.

Apartment Complex in Omori-cho
© Takuya Seki
Apartment Complex in Omori-cho
© Arata Noguchi (SAA)

The edges of these components reveal laminated layers, subtly suggesting a visual connection with the concrete bands on the exterior.

Apartment Complex in Omori-cho
© Takuya Seki
Apartment Complex in Omori-cho
© Takuya Seki


Apartment Complex in Omori-cho
Section
Apartment Complex in Omori-cho
Section Detail


Apartment Complex in Omori-cho
Model
Apartment Complex in Omori-cho
Elevation Image


Apartment Complex in Omori-cho
Plan