B0067 · density-optimal · seed 0
B0067-heuristic_nsga2-0-1105
Heuristic-seeded NSGA-IIA+D · meets all 17 benchmark constraints. Brief B0067
Plan drawing of a courtyard on a 21.8 by 22.2 metre lot, 2 storeys, 5 dwellings, 27 rooms. Dwelling U0 (studio) has 4 rooms totalling 33 square metres. Dwelling U1 (1BR) has 5 rooms totalling 46 square metres. Dwelling U2 (1BR) has 5 rooms totalling 95 square metres. Dwelling U3 (1BR) has 5 rooms totalling 95 square metres. Dwelling U4 (2BR) has 6 rooms totalling 79 square metres. Building footprint 198 square metres; open space 290 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.76, daylight 0.43, privacy 0.74, circulation 0.67, carbon 0.75, cost 0.42.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.758
- daylight
- 0.426
- privacy
- 0.735
- circulation
- 0.670
- carbon
- 0.752
- cost
- 0.419
Reported quantities
- FAR proxy (GFA / lot)
- 0.82
- site utilisation
- 0.843
- gross floor area, m²
- 396.7
- footprint, m²
- 198.4
- carbon proxy, kgCO₂e/m² (A1–A3)
- 349
- cost index / m² (unitless)
- 2.65
- worst habitable room, daylight
- 0.143
- circulation share of GFA
- 16%
- open space, net of parking
- 59%
- courtyard void, m²
- 42.0
- plumbing stacks
- 5
- footprint corners
- 8
- preferred adjacencies met
- 25%
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 | 33.3 | 4 |
| U1 | 1BR | 46.2 | 5 |
| U2 | 1BR | 95.0 | 5 |
| U3 | 1BR | 95.0 | 5 |
| U4 | 2BR | 79.5 | 6 |
All 27 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 23.9 | 17.70 × 1.35 |
| CORE@1 | shared circulation | shared | 1 | 23.9 | 17.70 × 1.35 |
| U1@0#2 | kitchen | U1 | 0 | 6.6 | 3.20 × 2.05 |
| U1@0#4 | bedroom primary | U1 | 0 | 15.7 | 3.20 × 4.90 |
| U1@0#1 | living | U1 | 0 | 17.9 | 3.45 × 5.20 |
| U1@0#3 | bathroom | U1 | 0 | 3.4 | 1.95 × 1.75 |
| U1@0#0 | entry | U1 | 0 | 2.6 | 1.50 × 1.75 |
| U0@0#3 | bathroom | U0 | 0 | 4.0 | 2.05 × 1.95 |
| U0@0#0 | entry | U0 | 0 | 2.5 | 1.30 × 1.95 |
| U0@0#2 | kitchen | U0 | 0 | 6.4 | 3.30 × 1.95 |
| U0@0#1 | living | U0 | 0 | 20.3 | 6.65 × 3.05 |
| U4@1#2 | kitchen | U4 | 1 | 5.9 | 3.30 × 1.80 |
| U4@1#3 | bathroom | U4 | 1 | 3.8 | 2.10 × 1.80 |
| U4@1#0 | entry | U4 | 1 | 2.3 | 1.25 × 1.80 |
| U4@1#1 | living | U4 | 1 | 27.3 | 6.65 × 4.10 |
| U4@1#5 | bedroom secondary | U4 | 1 | 22.1 | 3.65 × 6.05 |
| U4@1#4 | bedroom primary | U4 | 1 | 18.1 | 3.00 × 6.05 |
| U2@0#0 | entry | U2 | 0 | 4.0 | 1.65 × 2.40 |
| U2@0#3 | bathroom | U2 | 0 | 5.5 | 2.30 × 2.40 |
| U2@0#2 | kitchen | U2 | 0 | 9.6 | 4.00 × 2.40 |
| U2@0#1 | living | U2 | 0 | 25.4 | 7.95 × 3.20 |
| U2@0#4 | bedroom primary | U2 | 0 | 50.5 | 7.95 × 6.35 |
| U3@1#0 | entry | U3 | 1 | 4.0 | 1.65 × 2.40 |
| U3@1#3 | bathroom | U3 | 1 | 3.6 | 1.50 × 2.40 |
| U3@1#2 | kitchen | U3 | 1 | 11.5 | 4.80 × 2.40 |
| U3@1#1 | living | U3 | 1 | 25.4 | 7.95 × 3.20 |
| U3@1#4 | bedroom primary | U3 | 1 | 50.5 | 7.95 × 6.35 |