B0049 · carbon-optimal · seed 2
B0049-heuristic_nsga2-2-964
Heuristic-seeded NSGA-IIA+D · meets all 17 benchmark constraints. Brief B0049
Plan drawing of a courtyard on a 19.2 by 24.2 metre lot, 2 storeys, 4 dwellings, 25 rooms. Dwelling U0 (1BR) has 5 rooms totalling 64 square metres. Dwelling U1 (2BR) has 6 rooms totalling 69 square metres. Dwelling U2 (2BR) has 6 rooms totalling 64 square metres. Dwelling U3 (2BR) has 6 rooms totalling 69 square metres. Building footprint 156 square metres; open space 302 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.76, daylight 0.49, privacy 0.77, circulation 0.63, carbon 0.71, cost 0.39.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.755
- daylight
- 0.493
- privacy
- 0.768
- circulation
- 0.627
- carbon
- 0.709
- cost
- 0.394
Reported quantities
- FAR proxy (GFA / lot)
- 0.67
- site utilisation
- 0.841
- gross floor area, m²
- 311.5
- footprint, m²
- 155.8
- carbon proxy, kgCO₂e/m² (A1–A3)
- 365
- cost index / m² (unitless)
- 2.69
- worst habitable room, daylight
- 0.142
- circulation share of GFA
- 19%
- open space, net of parking
- 66%
- courtyard void, m²
- 31.5
- plumbing stacks
- 3
- 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 | 1BR | 63.7 | 5 |
| U1 | 2BR | 69.3 | 6 |
| U2 | 2BR | 63.7 | 6 |
| U3 | 2BR | 69.3 | 6 |
All 25 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 22.8 | 15.70 × 1.45 |
| CORE@1 | shared circulation | shared | 1 | 22.8 | 15.70 × 1.45 |
| U1@0#3 | bathroom | U1 | 0 | 5.5 | 1.95 × 2.80 |
| U1@0#0 | entry | U1 | 0 | 5.0 | 1.80 × 2.80 |
| U1@0#2 | kitchen | U1 | 0 | 8.3 | 2.95 × 2.80 |
| U1@0#1 | living | U1 | 0 | 29.1 | 6.70 × 4.35 |
| U1@0#4 | bedroom primary | U1 | 0 | 11.2 | 3.50 × 3.20 |
| U1@0#5 | bedroom secondary | U1 | 0 | 10.2 | 3.20 × 3.20 |
| U3@1#3 | bathroom | U3 | 1 | 3.3 | 1.65 × 2.00 |
| U3@1#0 | entry | U3 | 1 | 2.7 | 1.35 × 2.00 |
| U3@1#2 | kitchen | U3 | 1 | 7.4 | 3.70 × 2.00 |
| U3@1#1 | living | U3 | 1 | 34.5 | 6.70 × 5.15 |
| U3@1#4 | bedroom primary | U3 | 1 | 11.0 | 3.45 × 3.20 |
| U3@1#5 | bedroom secondary | U3 | 1 | 10.4 | 3.25 × 3.20 |
| U0@0#0 | entry | U0 | 0 | 2.7 | 1.30 × 2.10 |
| U0@0#3 | bathroom | U0 | 0 | 4.3 | 2.05 × 2.10 |
| U0@0#2 | kitchen | U0 | 0 | 5.9 | 2.80 × 2.10 |
| U0@0#1 | living | U0 | 0 | 17.2 | 6.15 × 2.80 |
| U0@0#4 | bedroom primary | U0 | 0 | 33.5 | 6.15 × 5.45 |
| U2@1#0 | entry | U2 | 1 | 2.6 | 1.20 × 2.20 |
| U2@1#3 | bathroom | U2 | 1 | 3.3 | 1.50 × 2.20 |
| U2@1#2 | kitchen | U2 | 1 | 7.6 | 3.45 × 2.20 |
| U2@1#1 | living | U2 | 1 | 25.2 | 6.15 × 4.10 |
| U2@1#4 | bedroom primary | U2 | 1 | 11.3 | 2.80 × 4.05 |
| U2@1#5 | bedroom secondary | U2 | 1 | 13.6 | 3.35 × 4.05 |