Architects:yHa architects

Area :1069 m²

Year :2019

Photographs :Seinosuke Kaneda, Takeshi Yamagishi, Yousuke Harigane, yHa architects

Structure Engineer :yAt Structural Design Office

Lighting :LIGHT PLAN

Landscape :landscape core

Contractor :Koyanagigiken

Design Team : Yujin Hirase, Yuko Hirase, Maki Mishima (Cooperation / Kazuya Soeda)

Client : Nakagawa-city, Fukuoka

Equipment : rise-sekkei

Signage Design : TETUSIN DESIGN

Wood Consultant : kyumeikyo

City : 1397-46 Gokayama, Nakagawa, Fukuoka 811-1234, Japan

Country : Japan

This is a project selected in the tourist base facility proposal that Nakagawa City called for the purpose of sightseeing promotion in September 2016 as part of the development project around the Gokayama dam lake that was completed in 2018.

There is a roof terrace with a natural wood deck that can be seen close to the dam lake, and a gentle staircase and slope like a bench where people can take a break, and the parking lot and the roof terrace are smoothly connected. We created a landscape with a sense of unity between landscape and architecture.

A natural wood louver made of Nakagawa city’s Japanese cypress treated with heat treatment was provided on the parking lot side of the roof terrace, and it was shaped according to the mountain so as to be a new symbol of Gokayama area. The structure is a civilian architecture like the same typology as a bridge, with the large steps on both sides and the kitchen core made of reinforced concrete and the others made of steel columns and beams. The kitchen core creates an interior space for framing the landscape by arranging as much as possible of the existing facilities other than the dam lakeside located behind it.

The aim is to have a landform architecture with large, coarse resolution details that are not too delicate, in keeping with the large civil engineering scale of the dam.

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