

curved roof defines KHT house by international royal architecture

photo by nobuaki nakagawa

all images courtesy of I.R.A. / international royal architecture

japanese practice I.R.A., or international royal architecture, has completed ‘KHT house’, a dual family residence in the country’s yamagata prefecture. the design comprises living accommodation for the older members of the family at ground floor level, while above, space is provided for the home’s younger occupants. a communal tatami room is placed at the center of the plan, while an external terrace connects the residence at the upper level. the dwelling is defined by its asymmetrically curved roof, clad in strong galvalume steel sheets that are capable of supporting the considerable amount of snow that falls in the region.



the dual family residence is located in the japan’s yamagata prefecture

photo by nobuaki nakagawa



the design comprises living accommodation for the older members of the family at ground floor level

photo by nobuaki nakagawa



space is provided for the home’s younger occupants

photo by nobuaki nakagawa



the dwelling is defined by its asymmetrically curved roof, clad in strong galvalume steel

photo by nobuaki nakagawa



a communal tatami room is placed at the center of the plan

photo by nobuaki nakagawa



double-height living accommodation at ground floor level

photo by nobuaki nakagawa



a centrally positioned terrace connects the design

photo by nobuaki nakagawa



‘KHT house’ illuminated at night

photo by nobuaki nakagawa



photos by nobuaki nakagawa

photo by nobuaki nakagawa

photos by nobuaki nakagawa

photo by nobuaki nakagawa

photo by nobuaki nakagawa

photo by nobuaki nakagawa

photo by nobuaki nakagawa

photo by nobuaki nakagawa

floor plan / level 0

floor plan / level +1

section full article here

project info:

project name: KHT house

architects: I.R.A. / international royal architecture

location: kahokucho, yamagata, japan

area: 197.28 sqm

design team: akinori kasegai , daisuke tsunakawa

collaborators: KAP (structure design)

photo credits: I.R.A.

photography: nobuaki nakagawa