flat12x stacks floating gardens for senior-living house in bangkok

Floating Garden House sits on compact plot in Bangkok

Located in Rama 9, Bangkok, the Floating Garden House for Seniors by FLAT12x is a three-story residence designed on a compact 70-square-wah urban plot. The project addresses spatial constraints through vertical organization, with cantilevered balconies that extend outward to create alternating garden terraces on each floor.

These balconies serve dual purposes: they provide space for small-scale gardening in a dense urban context and function as passive shading devices that protect the interiors from sun and rain in Bangkok’s tropical climate. Additional climate-responsive features include wide roof overhangs and aluminum lattice screens, which enhance ventilation, regulate daylight, and ensure privacy.

all images by DOF SkyGround

interior design by FLAT12x prioritizes senior living

The interior design prioritizes senior living by maintaining clear circulation, barrier-free layouts, and direct access to outdoor spaces on each level. Every floor integrates greenery, encouraging daily interaction with natural light and plants. A sustainable approach continues within the interior, where existing furniture has been repaired and reintroduced rather than replaced. The design team at FLAT12x restores tables, chairs, and the family’s bed for continued use, embedding memory and familiarity into the living environment while reducing waste.

By combining cantilevered garden balconies with adaptive reuse of materials, the house demonstrates how architecture can integrate climate-responsive design, sustainability, and well-being within the limitations of a compact urban site.

Floating Garden House by FLAT12x sits on a compact plot in Rama 9, Bangkok

the three-story residence uses vertical organization to address limited land

each level incorporates space for small-scale gardening in an urban context

garden terraces also function as passive shading devices

balconies protect interiors from direct sun and heavy tropical rains

aluminum lattice screens regulate daylight and enhance ventilation

cantilevered balconies extend outward to form alternating garden terraces

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kitchen

living-dining room

bedroom

exploded axonometric

project info:

name: 4396 Floating Garden House For The Senior

architect: FLAT12x | @flat12x_

location: Bangkok, Thailand

photographer: DOF SkyGround | @dofskyground

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edited by: christina vergopoulou | designboom