B0023 · carbon-optimal · seed 1
B0023-heuristic_nsga2-1-1015
Heuristic-seeded NSGA-IIA+D · meets all 17 benchmark constraints. Brief B0023
Plan drawing of a triplex on a 13.5 by 27.4 metre lot, 2 storeys, 3 dwellings, 17 rooms. Dwelling U0 (studio) has 4 rooms totalling 50 square metres. Dwelling U1 (1BR) has 5 rooms totalling 84 square metres. Dwelling U2 (2BR) has 6 rooms totalling 134 square metres. Building footprint 161 square metres; open space 205 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 1.00, daylight 0.48, privacy 0.76, circulation 0.61, carbon 0.84, cost 0.65.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 1.000
- daylight
- 0.481
- privacy
- 0.760
- circulation
- 0.612
- carbon
- 0.839
- cost
- 0.646
Reported quantities
- FAR proxy (GFA / lot)
- 0.87
- site utilisation
- 1.000
- gross floor area, m²
- 322.2
- footprint, m²
- 161.1
- carbon proxy, kgCO₂e/m² (A1–A3)
- 318
- cost index / m² (unitless)
- 2.30
- worst habitable room, daylight
- 0.153
- circulation share of GFA
- 20%
- open space, net of parking
- 56%
- courtyard void, m²
- 0.0
- plumbing stacks
- 3
- footprint corners
- 4
- preferred adjacencies met
- 0%
Benchmark constraints
Benchmark rules, not building code.
- C01geometry valid passed
- C02no overlap passed
- C03within buildable passed
- C04min room area passed
- C05min room dimension passed
- C06max room aspect passed
- C07min unit area passed
- C08unit connectivity passed
- C09street access passed
- C10habitable daylight passed
- C11required adjacency passed
- C12forbidden door passed
- C13open space passed
- C14courtyard provision passed
- C15programme complete passed
- C16unit contiguity passed
- C17vertical support passed
Dwellings and rooms
| Dwelling | Type | Area m² | Rooms |
|---|---|---|---|
| U0 | studio | 49.8 | 4 |
| U1 | 1BR | 84.1 | 5 |
| U2 | 2BR | 133.9 | 6 |
All 17 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 27.1 | 8.90 × 3.05 |
| CORE@1 | shared circulation | shared | 1 | 27.1 | 8.90 × 3.05 |
| U1@0#2 | kitchen | U1 | 0 | 9.0 | 4.75 × 1.90 |
| U1@0#3 | bathroom | U1 | 0 | 4.9 | 2.60 × 1.90 |
| U1@0#0 | entry | U1 | 0 | 2.9 | 1.55 × 1.90 |
| U1@0#1 | living | U1 | 0 | 30.7 | 8.90 × 3.45 |
| U1@0#4 | bedroom primary | U1 | 0 | 36.5 | 8.90 × 4.10 |
| U0@0#2 | kitchen | U0 | 0 | 7.2 | 3.90 × 1.85 |
| U0@0#3 | bathroom | U0 | 0 | 6.8 | 3.70 × 1.85 |
| U0@0#0 | entry | U0 | 0 | 2.4 | 1.30 × 1.85 |
| U0@0#1 | living | U0 | 0 | 33.4 | 8.90 × 3.75 |
| U2@1#2 | kitchen | U2 | 1 | 12.4 | 5.50 × 2.25 |
| U2@1#0 | entry | U2 | 1 | 3.4 | 1.50 × 2.25 |
| U2@1#3 | bathroom | U2 | 1 | 4.3 | 1.90 × 2.25 |
| U2@1#1 | living | U2 | 1 | 66.3 | 8.90 × 7.45 |
| U2@1#4 | bedroom primary | U2 | 1 | 27.3 | 5.10 × 5.35 |
| U2@1#5 | bedroom secondary | U2 | 1 | 20.3 | 3.80 × 5.35 |