Projects Tokyo

Private Housing

Private Villa. Karuizawa, Japan

Architect: Studio EM, Mayako Toivio formerly Otsuka
Role: Chief Designer. Site Supervisor.

This summer resort villa features a living room, dining room, bathroom, two bedrooms, and a loft. The building is constructed with a wooden structure and spans two stories, with a total area of 180 m².


Private Villa. Shimoda, Japan

Architect: Studio EM, Mayako Toivio, formerly Otsuka
Role: Chief Designer. Site Supervisor.

The villa has three bedrooms, a dining room, a bathroom, a garage and a terrace. It faces Irita Beach, which is a famous surfing spot.
The structure is a combination of concrete and wood, with three stories and a total area of
200 m².


Villa next to the Bristol Hill Golf Club, Futtsu. Chiba, Japan.

Architect: Studio EM, Mayako Toivio, formerly Otsuka
Role: Chief Designer. Site Supervisor.

The villa has two bedrooms, a dining room, a bathroom, and an attic. It is located in the vicinity of a golf course, next to a villa of a famous golfer.
The structure is made of wood, with two stories and a total area of 200 m².


Private House in Shibuya. Tokyo, Japan.

Architect: Studio EM, Mayako Otsuka/Toivio
Role: Chief Designer. Site Supervisor.

This elegant residence includes a comfortable living room, a dining room, two bedrooms, a bathroom, a home elevator and a den. Thoughtfully designed as functional housing for Keio university professor at the forefront of remote academic study, the home seamlessly blends innovation with comfort.
The house is built with a wood structure, spanning two stories and covering a total area of 110 m².


Public projects

Gymnasium. Chiba, Japan.

Architect: HAZAMA corporation.
Role: Chief Designer. Site Supervisor. Interior designer.
The gymnasium serves not only as a sports facility but also as a central reception area for all school students. The first floor features a 4-meter-high space designed for table tennis, while the third floor is equipped to accommodate basketball, volleyball, and handball. Constructed with reinforced concrete, the building spans three stories and offers a total floor area of 2,300 m².


Kindergarten in Suginami. Tokyo, Japan.

Architect: Studio EM, Mayako Toivio, formerly Otsuka
Role: Chief Designer. Site Supervisor.

This Christian kindergarten offers a nurturing environment with a three-year curriculum, designed to foster spiritual and intellectual growth. The facility features nine classrooms, each thoughtfully designed to support early learning, alongside an auditorium dedicated to worship services.
Constructed with a reinforced concrete structure, the building spans three stories and covers a total area of 1,100 m².


Interior Designs :

Private mansion in Roppongi. Tokyo, Japan.

Architect: Studio EM, Mayako Toivio, formerly Otsuka
Role: Chief Designer. Site Supervisor. Interior designer.

The design for a wealthy family in Roppongi, Tokyo, seeks to create a sophisticated and harmonious environment. The details are a blend of elegance, comfort, and style. Within a total area of 200 m².

A lighting design is integrated into rooms, with a mix of ambient, task, and accent lighting to highlight architectural features and create a warm, inviting ambiance. Sustainable LED lighting illuminates key areas, enhancing textures, art pieces, and materials.
Large windows invite the beauty of Tokyo’s skyline during the day and provide a view of the city lights at night.

The furniture and textile selections are made with an emphasis on quality and comfort, along the design concept. The design uses traditional Japanese aesthetics with modern Western influences, with minimalist principles.


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Bedrooms and Children’s rooms

Apartment in Akasaka. Tokyo, Japan.

Architect: Studio EM, Mayako Toivio, formerly Otsuka
Role: Interior designer.

The tendency for all the persons was stated in the design of the interiors.
According to form, function, colour and conformity.


Dojo in Akasaka, 2 floors. Tokyo, Japan.

Architect: Studio EM, Mayako Toivio, formerly Otsuka
Role: Chief Designer. Site Supervisor. Interior designer.

2 Karate studios with practice areas for 12 and 30 people.
Entrance with shoe boxes, changing and hygienic facilities and teachers department.
Construction and acoustic issues have been taken care of with precise description of the walls, ceilings and floors.


Japanese rooms in Akasaka, Shirogane and Narita. Tokyo, Japan.

Architect: Studio EM, Mayako Toivio, formerly Otsuka
Role: Interior designer. Site supervisor.

Rooms for holding, Cha-No-Yu.
Including the chain of spaces used in the tea-ceremony. And Mizuya kitchen.

Rooms used for meetings and conferences.
Some of the facilities are also used for educational purposes.


Below a selection of interior designs in Tokyo:

Architect: Studio EM, Mayako Toivio, formerly Otsuka
Role: Interior designer. Site supervisor.

Entrances, living rooms, kitchens, bedroom and bathroom designs :