Urban

Microalgae photobioreactor panels and units built into a building's facade or air-handling system — living CO2/VOC scrubbers that also shade and pre-cool glazing — sold by architecture-biotech studios and consumer-hardware startups as a distinct, algae-based layer from the rooted-plant living-wall biofiltration hardware already covered on this site.

Bioluminescent urban lighting uses live biological systems — marine bacteria (Aliivibrio fischeri via Glowee) and plants engineered with fungal bioluminescence genes (Woodlight, Bioo, Light Bio) — to emit a soft, electricity-free blue-green glow for streets, buildings and public spaces, cutting the energy and CO2 footprint of conventional public lighting (worth roughly €2.41 B/year in France alone) at the cost of far lower luminous intensity and the engineering challenges of keeping a living light source alive outdoors.

Design consultancies and research institutes that apply biomimicry methodology to city-scale planning — modeling urban water, energy and heat flows on ecosystem principles rather than engineering single green-infrastructure installations — the planning-methodology layer distinct from the structural soil cells and tree-pit hardware that implement individual green-infrastructure projects.

Engineered living-wall, green-roof and biofilter systems integrated into the building envelope to deliver measurable indoor-air quality, stormwater and urban-heat-island gains — the hardware layer behind the biophilic-design amenity and the rental-and-sale green premium that is now underwritten by LEED, BREEAM and WELL rating points.

Structural soil cells, professional urban-forest management services and moss-based biofiltration installations that let street trees and green infrastructure survive and function under paved urban surfaces — the hardware and service layer distinct from stormwater bioretention systems, which target runoff specifically.

Turning the wastewater treatment plant itself into a multi-product factory — extracting struvite fertilizer, recovered cellulose and PHA bioplastic from sludge before it ever reaches a digester — the urban-siting model that converts a city's own organic waste into fertilizer, biomethane and district heat inside its own ring road, distinct from the AD-to-RNG plant or the reverse-logistics chain that feeds it.

Mapping and deliberately shaping the microbial communities that colonize subways, offices and hospitals — global metagenomic swabbing consortia that sequence a city's aerobiome, probiotic surface cleaners that seed beneficial microbes instead of sterilizing every surface, and building-science research on how mass-timber and ventilation design shift indoor microbial ecology — treating a city's invisible biology as infrastructure to be measured and managed rather than eliminated.