B0061 · cost-optimal · seed 0
B0061-heuristic_nsga2-0-1027
Heuristic-seeded NSGA-IIA+D · meets all 17 benchmark constraints. Brief B0061
Plan drawing of a courtyard on a 21.1 by 25.6 metre lot, 2 storeys, 5 dwellings, 27 rooms. Dwelling U0 (studio) has 4 rooms totalling 39 square metres. Dwelling U1 (1BR) has 5 rooms totalling 92 square metres. Dwelling U2 (1BR) has 5 rooms totalling 53 square metres. Dwelling U3 (1BR) has 5 rooms totalling 92 square metres. Dwelling U4 (2BR) has 6 rooms totalling 92 square metres. Building footprint 205 square metres; open space 336 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.68, daylight 0.47, privacy 0.71, circulation 0.67, carbon 0.75, cost 0.48.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.676
- daylight
- 0.465
- privacy
- 0.710
- circulation
- 0.668
- carbon
- 0.753
- cost
- 0.477
Reported quantities
- FAR proxy (GFA / lot)
- 0.76
- site utilisation
- 0.789
- gross floor area, m²
- 411.0
- footprint, m²
- 205.5
- carbon proxy, kgCO₂e/m² (A1–A3)
- 349
- cost index / m² (unitless)
- 2.56
- worst habitable room, daylight
- 0.164
- circulation share of GFA
- 15%
- open space, net of parking
- 62%
- courtyard void, m²
- 45.5
- plumbing stacks
- 4
- footprint corners
- 8
- 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 | 38.9 | 4 |
| U1 | 1BR | 92.2 | 5 |
| U2 | 1BR | 53.3 | 5 |
| U3 | 1BR | 92.2 | 5 |
| U4 | 2BR | 92.2 | 6 |
All 27 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 21.2 | 17.65 × 1.20 |
| CORE@1 | shared circulation | shared | 1 | 21.2 | 17.65 × 1.20 |
| U2@0#1 | living | U2 | 0 | 19.8 | 4.55 × 4.35 |
| U2@0#4 | bedroom primary | U2 | 0 | 13.9 | 4.55 × 3.05 |
| U2@0#3 | bathroom | U2 | 0 | 4.1 | 2.65 × 1.55 |
| U2@0#0 | entry | U2 | 0 | 4.8 | 2.65 × 1.80 |
| U2@0#2 | kitchen | U2 | 0 | 10.7 | 2.65 × 4.05 |
| U0@0#2 | kitchen | U0 | 0 | 8.5 | 4.05 × 2.10 |
| U0@0#3 | bathroom | U0 | 0 | 4.1 | 1.95 × 2.10 |
| U0@0#0 | entry | U0 | 0 | 2.5 | 1.20 × 2.10 |
| U0@0#1 | living | U0 | 0 | 23.8 | 7.20 × 3.30 |
| U4@1#2 | kitchen | U4 | 1 | 10.7 | 3.15 × 3.40 |
| U4@1#3 | bathroom | U4 | 1 | 9.5 | 2.80 × 3.40 |
| U4@1#0 | entry | U4 | 1 | 4.3 | 1.25 × 3.40 |
| U4@1#1 | living | U4 | 1 | 41.8 | 7.20 × 5.80 |
| U4@1#4 | bedroom primary | U4 | 1 | 11.7 | 3.25 × 3.60 |
| U4@1#5 | bedroom secondary | U4 | 1 | 14.2 | 3.95 × 3.60 |
| U1@0#0 | entry | U1 | 0 | 4.9 | 1.90 × 2.60 |
| U1@0#3 | bathroom | U1 | 0 | 4.9 | 1.90 × 2.60 |
| U1@0#2 | kitchen | U1 | 0 | 8.8 | 3.40 × 2.60 |
| U1@0#1 | living | U1 | 0 | 33.8 | 7.20 × 4.70 |
| U1@0#4 | bedroom primary | U1 | 0 | 39.6 | 7.20 × 5.50 |
| U3@1#0 | entry | U3 | 1 | 4.9 | 1.45 × 3.35 |
| U3@1#3 | bathroom | U3 | 1 | 5.7 | 1.70 × 3.35 |
| U3@1#2 | kitchen | U3 | 1 | 13.6 | 4.05 × 3.35 |
| U3@1#1 | living | U3 | 1 | 27.4 | 7.20 × 3.80 |
| U3@1#4 | bedroom primary | U3 | 1 | 40.7 | 7.20 × 5.65 |