Classification System
PRMS
Taxonomy
Four sequential levels of architectural maturity. Three node typologies. Three operational scales. A formal classification system for metabolic architecture.
Maturity Levels
Sequential taxonomy
Each level is a threshold, not a label. A system advances through demonstrated operational performance, not design intent or certification compliance.
Sustentable
Baseline compliance with sustainability standards. Reduces resource consumption relative to conventional construction without achieving meaningful autonomy. Equivalent to LEED Silver / BREEAM Good / EDGE certification threshold. Entry level — the minimum PRMS recognizes as a system rather than a conventional building.
Eficiente
Significant performance gains through integrated system design. Energy and water flows are actively optimized. IoT monitoring is operational across all four layers. The building begins to behave as a system — not just a compliant structure. Equivalent to LEED Gold / BREEAM Very Good / EDGE Advanced.
Autónomo
The system generates most or all of its own energy and manages water independently. External network dependence is minimal. Continuous optimization cycles are established. This is the level demonstrated by SmartLiving Milenio III-308 (PEAR-ROI Score: 0.78, Year 1 data). No direct certification equivalent exists — this level exceeds the top tier of existing standards.
Regenerativo
The natural outcome of all metabolic cycles operating correctly. Energy generation exceeds consumption — the surplus feeds the grid or adjacent systems. Water cycles are fully closed. Ecological function is actively restored. Regenerativo is not an aspirational label; it is the proof that PRMS was applied with full integrity from design inception. Exceeds Living Building Challenge in measurability requirements.
Node Typology
Types of PRMS nodes
A PRMS node is any space that satisfies four functional conditions simultaneously: energy production, self-regulating climate, verifiable habitability, and real-time performance measurement.
Residential Node
Single-family or multi-family dwelling operating as a self-contained metabolic unit. Base module: 3.60 × 7.20 × 3.60 m. Primary empirical case: SmartLiving Milenio III.
Productive Node
Commercial, industrial, or mixed-use space generating metabolic surplus — energy, materials, or biological production — beyond its own operational needs.
Territorial Node
Urban district or community operating as an interconnected metabolic network. Nodes at this scale exchange surplus flows between buildings and interface with city infrastructure.
Operational Scales
Three levels of application
| Scale | Unit | Primary flows | PRMS instrument |
|---|---|---|---|
| Vivienda | Individual dwelling or node | Energy, water, thermal comfort, IAQ | PEAR-ROI Score, IoT dashboard |
| Edificio | Multi-unit building or campus | Collective energy balance, shared water systems, mobility | Aggregated metabolic index, node network |
| Ciudad | District or territorial cluster | Grid interaction, ecological corridors, material cycles | Territorial metabolism map, surplus exchange protocol |
Positioning
PRMS vs. existing standards
| Standard | Validation basis | Real-time data | Metabolic framework | PRMS equivalent |
|---|---|---|---|---|
| LEED | Design documentation | No | No | L1–L2 Sustentable/Eficiente |
| BREEAM | Design + some monitoring | Partial | No | L1–L2 Sustentable/Eficiente |
| EDGE (IFC) | Resource reduction targets | No | No | L1 Sustentable |
| Living Building Challenge | Net-positive outcomes | Partial | Partial | L3–L4 Autónomo/Regenerativo |
| PRMS | Continuous operational data | Yes — mandatory | Yes — constitutive | L1→L2→L3→L4 |