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Steel sheets wrap around the floor plates at The Sukagawa Community Center

Unemori Architects creates "earthquake-proof" community centre in Fukushima

Architecture studio Unemori Architects has built the Sukagawa Community Center in Fukushima as part of the wider rejuvenation of the city after the 2011 Tōhoku earthquake.

Created in collaboration with Ishimoto Architectural & Engineering Firm, the community centre was designed to be a space that demonstrates the revitalisation of the city.

"It was important to us to give courage to the disaster-stricken city by showing that the residents of the city have a place here at Sukagawa Community Center to stay, work, learn and meet," Unemori Architects founder Hiroyuki Unemori told Dezeen.

"Our goal was to create a building that would fit seamlessly into the city."

The exterior of The Sukagawa Community Center has a stacked design
Top: steel panels wrap around the exterior of the building. Above: the building is comprised of a series of stacked floors plates. Photography is by Kai Nakamura

The five-storey Sukagawa Community Center houses libraries, a museum, a lecture hall, childcare centres and cafes.

It was created as a "public forum" and also has a number of spaces for socialising and studying. Interior and exterior terraces surround the building, which has a total floor area of 13,700 square metres.

The lobby of The Sukagawa Community Center
The lobby of the building is located beneath a series of voids and layered floors. Photography is by Kai Nakamura

The community centre was built to help revitalise the city, which was badly hit by the 2011 Tōhoku earthquake, which was the country's most powerful recorder earthquake and destroyed major parts of eastern Japan.

It was designed to be earthquake-proof and will be used for disaster relief activities in the event of future earthquakes.

"This building will be a temporary evacuation facility for the city, and it is not only earthquake-proof, but in the event of a disaster, you can immediately go to the outdoor terrace and evacuate from there via outdoor stairs to the ground," said Unemori.

Floor-to-ceiling windows line the ground floor of The Sukagawa Community Center
A ramp leads visitors around the building

The exterior of the building takes shape as a collection of stacked floor slabs that are layered and staggered to form a series of canopies and terraces connected by staircases.

Across the exterior, steel sheets wrap around the layered slabs and extend through to the interior, connecting and unifying the spaces.

A curved ramp leads visitors between floors at The Sukagawa Community Center
The interior of The Sukagawa Community Center was designed to be calming. Photography is by Kai Nakamura

Inside, an open floor plan characterises the space and is framed by its steel wrapped floor slabs that appear as if floating within the interior.

The ground floor was built on a sloping level that raises 2.5 metres and includes a waiting area, cafe and events space, all of which are connected to the outdoors.

Ramps and sloped walkways, which were designed to mimic walking around the city, connect and link the floors to lead visitors around the building.

Orange carpet covers the floor of the library at The Sukagawa Community Center
The library has a warm look

On the first floor, a children's library with a cheerful orange carpet sits within a double-height space.

Light wood furnishings were used throughout the room, forming bookcases, work stations and display cabinetry and adding warmth to the stark interior material palette.

"We have chosen simple materials that create a calm background for the people who visit here," said Unemori.

"We used natural wood for the furniture, which is pleasant to the touch."

Pale wood furniture was used throughout The Sukagawa Community Center
The interior of the megastructure floor plate is viewable from across the building. Photography is by Kai Nakamura

A large playground with an undulating floor and climbing nets are contained within the corner of the building.

An outdoor playground located on the terrace is connected to the indoor playspace and employs a similar design, with undulating volumes raising from the floor.

Terraces are adjoined to the library spaces
Terraces and private workspaces line the edge of the library. Photography is by Kai Nakamura

The building's lower floors are suspended from a two-floor steel megastructure that stretches across the third and fourth floors.

Designed as part of the building's earthquake resilience, this structure means that columns are reduced on the lower floors and the community centre is protected from possible ground movement.

The megastructure is wrapped in a steel mesh with some sections exposed so visitors can view the steelwork from within the building.

There is climbing nets and slides
A large indoor play area was built within the building

Air conditioning systems, smoke exhaust routes and layers of sound-absorbing material were placed within the floorplate to protect the building and provide a comfortable environment within the library above.

"If you are going to build a building in Japan now, all buildings are required to be earthquake resistant," explained Unemori. "The earthquake resistance and structural planning are important factors when thinking about architecture."

"It is a well-ventilated building, which is important right now in the Covid-19 pandemic," explained Unemori. "The windows on all the terraces can be easily opened and due to the empty space in the middle of the building it is well ventilated as a whole."

Children are pictured playing on a terrace
The play space extends out onto one of the many terraces. Photography is by Kai Nakamura

Recently, Unemori Architects created a small corrugated steel house on a 26-square metre plot in Tokyo.

Elsewhere in Fukushima, architecture studio ADX created a sculptural soil mound within a home using excavated soil from its building site.

Photography is by Kawasumi Kobayashi Kenji Photograph Office unless stated otherwise.

Project credits:

Sign planning: Irobe Design Institute, Nippon Design Center
Landscape: Inada Takio Landscape Design Office
Disaster prevention: ATAKA BOSAI SEKKEI
Acoustics: Karasawa Architectural & Acoustic Design
Civic consulting: Stillwater
Exhibition plan: Tanseisha

More images

Ground floor plan of the building
First floor plan of the building
Second floor plan of the building
Third floor plan
Fourth floor plan
Steel wraps around parts of the building
The lobby has a slight sloping floor
Sheer curtains surround the interior
Seating was placed throughout the lobby
An exhibition space is surrounded by a raised walkway
Floors at overlap and cross each-other
Floors can be seen from below
Voids connect the different levels
The library has a warm interior
Wooden bookcases line the walls
Voids allow light to enter different spaces
There is a vast library
Workspaces were placed throughout the library
A ramp circulates the building
A children's library has a wood and orange interior
There are terraces on the upper levels
There is a slide at the play area
A net play area covers the indoor playspace
Children can play at the netted area
There is a daycare at the building
The centre has a large auditorium
Staircases connect the exterior terraces
Terraces are lined with play areas and seating