Mnemosyne starts from a global ageing crisis, looks at how China’s seniors actually live, and turns what it finds into three sets of design rules for mobility, vision and memory decline.
The Global Aging Crisis
Europe, North America and East Asia have already crossed into deep ageing, with more than 19% of people over 65. China is not there yet, but it is climbing fast, and will soon carry the largest and fastest-growing older population in the world.
The numbers hide the daily reality: weaker legs, dimmer eyesight, harder hearing, slipping memory, fewer people to talk to. Most seniors simply live with these at home.
1.5 BILLIONSenior by 2050
Super-Aged Society (21+% Seniors)
Where Ageing Shows Up at Home
Ageing looks different for everyone. Some lose their sense of direction, some cannot see or hear as well, others move slowly or find it harder to remember. We narrowed our focus to the three declines that most affect whether a person can still manage their own home: mobility, vision and memory. Each one becomes a person the design has to answer for.
A - Navigation Difficulty
B - Sensory Support Needs
C - Physical Assistance Needs
D - Cognitive Load
E - Risk Level/ Fall Risk
Three Key Aging Types
MOBILITY DECLINE
Knee arthritis + balance loss
Difficulty standing, sitting and moving independently
VISION DECLINE
Reduced contrast + poor night vision
Difficulty recognising boundaries and destinations
MEMORY DECLINE
Short-term memory loss + disorientation
Difficulty remembering tasks, objects and routes
→ The three people behind these types, and how we rebuilt their rooms, are shown in WORKS.
Problem Statement
Aging does not arrive as a single condition—it unfolds differently for every person. Some lose balance, some lose clarity of vision, some lose memory or social connection. Our research shows that these layered difficulties are widespread, yet the spaces seniors live in rarely change with them.
The real problem is not aging itself, but the mismatch between the changing body and the unchanging home. We need a design system that adapts to people, instead of forcing people to adapt to space.
Limitations Of Existing Assistive Products
Across the case studies, eight recurring limitations reveal a common gap: existing solutions respond to isolated needs, but rarely adapt as an integrated living environment.
Design Statement
We propose an adaptive modular living system for older adults that translates diverse patterns of physical, sensory, and cognitive decline into customizable furniture, spatial configurations, and supportive domestic environments.
Rather than treating ageing as a fixed condition, the system recognizes that individual abilities and everyday needs continuously change over time. Through a flexible modular framework, spatial components can be reconfigured, replaced, or adapted in response to different levels of mobility, perception, and cognition, allowing the home to evolve alongside the changing body.
By integrating accessibility, spatial guidance, continuous physical support, and personalized furniture into one coherent system, the design aims to reduce the mismatch between residents and their existing domestic environments. Instead of requiring older adults to constantly adapt themselves to rigid spaces, the environment becomes capable of adapting to them.
Through this personalized and evolving approach, the project seeks to support independent living, everyday autonomy, dignity, and a greater sense of control, transforming the home from a static backdrop into an active framework of care that responds to age-related changes in everyday life.
Mnemosyne Design Workflow
DESIGN RULES
Every spatial decision follows three sets of adaptive rules, one each for mobility, vision and memory decline.
RULE 1 — FURNITURE & RESTRICTION
Sized to the Body
Reach, seating and bed heights follow ADA and China’s GB/T 46015-2025. Nothing she needs sits higher than 1220 mm, seats hold 430-480 mm, and the bed edge supports a lateral transfer from a wheelchair.
≤1220 mm reach
430-480 mm seat
bed h 450 mm
RULE 2 — CLEAR CIRCULATION ZONE
One Route, No Obstacles
A continuous route links entrance, bed, bathroom, kitchen and living area. The path stays at least 1200 mm wide (1500 preferred), with Ø1500 mm turning pockets at every decision point.
≥1200 mm width
Ø1500 turn
RULE 3 — HANDRAIL GENERATION
Support, Grown from Furniture
Furniture modules are decomposed, arranged along circulation, and joined by continuous handrail paths, producing a room where support is built in, not added on.
5-step generation
1
3
2
4
5
Component Extraction
Spatial Configuration
Handrail Path Generation
Integrated Support System
Furniture elements are decomposed into modular units, forming the base spatial components.
Modules are arranged according to spatial layout, circulation paths, and user movement patterns.
Continuous support paths are generated along key movement routes, linking furniture and spatial edges.
Handrails are embedded into the furniture system, forming a continuous and accessible spatial interface.
Generated Room Prototype
From handrail generation rules to a complete domestic spatial prototype.
ADAPTIVE NAVIGATION FRAMEWORK
Guidance that Matches Sight
Four escalating levels of guidance meet the resident wherever her eyesight is: colour first, then touch, then light, then the robot. The home never asks for more vision than she has.
4 guidance levels
RULE 1 — CONTRAST SURFACE
Boundaries You Can See
Without brightness or hue difference, rooms blur into one surface. Pairing tones with a hue gap of at least 90 degrees and holding contrast above 3.0 keeps every boundary readable, even with similar lightness.
dH >= 90 deg
CR >= 3.0
RULE 2 — TACTILE WALL PANEL
Routes Read by Hand
A continuous tactile language runs along the walls: raised symbols name each destination, 15 cm grip rails hold her steady, and the soft-light modules glow at night. Panels click straight onto the cube grid.
15 cm grip
cube-mounted
READING AREA
BATHROOM
ENTRANCE/EXIT
TURN LEFT
TURN RIGHT
BEDROOM
Activity Area
LIVING ROOM
KITECHEN
15cm
Grip width
The matte-textured plastic modules allow users to better grasp and recognize graphics and information.
The soft light module can provide lighting guidance for the elderly at night.
Panel rails are compatible with cube modules for easy and quick installation and use.
GO straight
Tactile Wall Panel is a tactile wall-guidance system for elderly people with declining vision. Raised patterns and symbols help users identify routes, directions, and destinations through touch, enabling safer, more independent navigation in age-friendly indoor environments.
RULE 3 — SMART PATH
A Floor that Points the Way
Two tactile surfaces guide her underfoot. Raised dots mark decision points and destinations; linear grooves keep her moving in the right direction between them.
tactile dots
directional grooves
Tactile Alert Surface
Raised tactile dots indicate decision points, functional zones, and intersections, helping users recognise important destinations through touch and foot sensation.
Navigation Path
Destination Marker
Directional Guidance Surface
Linear tactile grooves provide continuous directional guidance, supporting safe navigation and orientation throughout the home.
RULE 4 — ADAPTIVE LIGHT SYSTEM
Four Layers of Light
Ceiling ambient, furniture edge, touch-panel and floor path lights work as one system, tunable from 1800 K to 6500 K so brightness and warmth follow the hour and the task.
1800-6500 K
4 layers
1
2
3
4
Ceiling Ambient Light
Furniture Edge Light
Touchable Panel Light
Navigation Path Light
Provides uniform ambient illumination for the entire space
Integrated lighting along furniture edges enhances visibility and support
Floor-integrated guidance lighting supports safe movement and orientation
RULE 1 — LOOPED CIRCULATION
One Loop, One Decision at a Time
The plan closes into a single loop. No intersections, no dead ends: functional zones line up along one continuous route, so he only ever faces one destination at a time.
1 loop
0 dead ends
RULE 2 — COLOUR AS MEMORY CUE
One Function, One Colour
Each zone keeps one fixed colour: yellow for cooking, purple for rest, blue for hygiene, green for nature, light blue for reading. The room states its purpose before he has to remember it.
1 function = 1 colour
One Function = One Colour
Yellow — Kitchen / Cooking
Purple — Bedroom / Rest
Blue — Bathroom / Hygiene
Green — Nature / Relaxation
Light Blue — Reading / Cognitive Activity
RULE 3 — COLOUR ATLAS
The Palette that Holds the Plan
Five rooms, five fixed hues. The atlas keeps the palette stable across every rebuild, so the home may change shape but never changes its colours.
5 zone colours
BEDROOM
GREEN WALL
BATHROOM
READING
KITCHEN
Different needs call for a flexible furniture system. The Cube modules turn these rules into rooms that can be rebuilt as those needs change.
