B0023 · circulation-optimal · seed 1
B0023-heuristic_nsga2-1-1107
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 85 square metres. Dwelling U2 (2BR) has 6 rooms totalling 135 square metres. Building footprint 147 square metres; open space 227 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.86, daylight 0.51, privacy 0.77, circulation 0.76, carbon 0.82, cost 0.53.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.864
- daylight
- 0.509
- privacy
- 0.765
- circulation
- 0.760
- carbon
- 0.820
- cost
- 0.526
Reported quantities
- FAR proxy (GFA / lot)
- 0.79
- site utilisation
- 0.912
- gross floor area, m²
- 293.7
- footprint, m²
- 146.8
- carbon proxy, kgCO₂e/m² (A1–A3)
- 325
- cost index / m² (unitless)
- 2.48
- worst habitable room, daylight
- 0.217
- circulation share of GFA
- 11%
- open space, net of parking
- 60%
- courtyard void, m²
- 0.0
- plumbing stacks
- 4
- 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 | 50.3 | 4 |
| U1 | 1BR | 85.0 | 5 |
| U2 | 2BR | 135.3 | 6 |
All 17 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 11.6 | 8.25 × 1.40 |
| CORE@1 | shared circulation | shared | 1 | 11.6 | 8.25 × 1.40 |
| U1@0#2 | kitchen | U1 | 0 | 10.9 | 5.20 × 2.10 |
| U1@0#3 | bathroom | U1 | 0 | 3.8 | 1.80 × 2.10 |
| U1@0#0 | entry | U1 | 0 | 2.6 | 1.25 × 2.10 |
| U1@0#1 | living | U1 | 0 | 30.9 | 8.25 × 3.75 |
| U1@0#4 | bedroom primary | U1 | 0 | 36.7 | 8.25 × 4.45 |
| U0@0#3 | bathroom | U0 | 0 | 6.7 | 3.35 × 2.00 |
| U0@0#0 | entry | U0 | 0 | 2.5 | 1.25 × 2.00 |
| U0@0#2 | kitchen | U0 | 0 | 7.3 | 3.65 × 2.00 |
| U0@0#1 | living | U0 | 0 | 33.8 | 8.25 × 4.10 |
| U2@1#2 | kitchen | U2 | 1 | 12.5 | 5.10 × 2.45 |
| U2@1#0 | entry | U2 | 1 | 3.2 | 1.30 × 2.45 |
| U2@1#3 | bathroom | U2 | 1 | 4.5 | 1.85 × 2.45 |
| U2@1#1 | living | U2 | 1 | 66.8 | 8.25 × 8.10 |
| U2@1#4 | bedroom primary | U2 | 1 | 33.3 | 5.70 × 5.85 |
| U2@1#5 | bedroom secondary | U2 | 1 | 14.9 | 2.55 × 5.85 |