B0049 · cost-optimal · seed 0
B0049-heuristic_nsga2-0-987
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 65 square metres. Dwelling U1 (2BR) has 6 rooms totalling 64 square metres. Dwelling U2 (2BR) has 6 rooms totalling 65 square metres. Dwelling U3 (2BR) has 6 rooms totalling 64 square metres. Building footprint 155 square metres; open space 300 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.75, daylight 0.49, privacy 0.77, circulation 0.57, carbon 0.71, cost 0.44.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.748
- daylight
- 0.486
- privacy
- 0.775
- circulation
- 0.571
- carbon
- 0.708
- cost
- 0.445
Reported quantities
- FAR proxy (GFA / lot)
- 0.67
- site utilisation
- 0.836
- gross floor area, m²
- 309.9
- footprint, m²
- 155.0
- carbon proxy, kgCO₂e/m² (A1–A3)
- 365
- cost index / m² (unitless)
- 2.61
- worst habitable room, daylight
- 0.139
- circulation share of GFA
- 21%
- open space, net of parking
- 67%
- courtyard void, m²
- 30.0
- plumbing stacks
- 2
- 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 | 64.6 | 5 |
| U1 | 2BR | 63.6 | 6 |
| U2 | 2BR | 64.6 | 6 |
| U3 | 2BR | 63.6 | 6 |
All 25 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 26.7 | 15.70 × 1.70 |
| CORE@1 | shared circulation | shared | 1 | 26.7 | 15.70 × 1.70 |
| U1@0#2 | kitchen | U1 | 0 | 6.5 | 2.35 × 2.75 |
| U1@0#3 | bathroom | U1 | 0 | 7.4 | 2.70 × 2.75 |
| U1@0#0 | entry | U1 | 0 | 3.4 | 1.25 × 2.75 |
| U1@0#1 | living | U1 | 0 | 21.7 | 6.30 × 3.45 |
| U1@0#4 | bedroom primary | U1 | 0 | 14.2 | 3.65 × 3.90 |
| U1@0#5 | bedroom secondary | U1 | 0 | 10.3 | 2.65 × 3.90 |
| U3@1#0 | entry | U3 | 1 | 2.9 | 1.20 × 2.40 |
| U3@1#3 | bathroom | U3 | 1 | 3.8 | 1.60 × 2.40 |
| U3@1#2 | kitchen | U3 | 1 | 8.4 | 3.50 × 2.40 |
| U3@1#1 | living | U3 | 1 | 19.2 | 6.30 × 3.05 |
| U3@1#4 | bedroom primary | U3 | 1 | 17.4 | 3.75 × 4.65 |
| U3@1#5 | bedroom secondary | U3 | 1 | 11.9 | 2.55 × 4.65 |
| U0@0#0 | entry | U0 | 0 | 2.8 | 1.35 × 2.05 |
| U0@0#3 | bathroom | U0 | 0 | 4.3 | 2.10 × 2.05 |
| U0@0#2 | kitchen | U0 | 0 | 6.0 | 2.95 × 2.05 |
| U0@0#1 | living | U0 | 0 | 17.6 | 6.40 × 2.75 |
| U0@0#4 | bedroom primary | U0 | 0 | 33.9 | 6.40 × 5.30 |
| U2@1#0 | entry | U2 | 1 | 3.0 | 1.40 × 2.15 |
| U2@1#3 | bathroom | U2 | 1 | 3.2 | 1.50 × 2.15 |
| U2@1#2 | kitchen | U2 | 1 | 7.5 | 3.50 × 2.15 |
| U2@1#1 | living | U2 | 1 | 20.2 | 6.40 × 3.15 |
| U2@1#4 | bedroom primary | U2 | 1 | 13.9 | 2.90 × 4.80 |
| U2@1#5 | bedroom secondary | U2 | 1 | 16.8 | 3.50 × 4.80 |