B0001 · cost-optimal · seed 1
B0001-heuristic_nsga2-1-1210
Heuristic-seeded NSGA-IIA+D · meets all 17 benchmark constraints. Brief B0001
Plan drawing of a courtyard on a 19.2 by 24.8 metre lot, 2 storeys, 4 dwellings, 24 rooms. Dwelling U0 (1BR) has 5 rooms totalling 80 square metres. Dwelling U1 (1BR) has 5 rooms totalling 79 square metres. Dwelling U2 (2BR) has 6 rooms totalling 79 square metres. Dwelling U3 (2BR) has 6 rooms totalling 80 square metres. Building footprint 204 square metres; open space 264 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.64, daylight 0.56, privacy 0.76, circulation 0.51, carbon 0.77, cost 0.62.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.641
- daylight
- 0.559
- privacy
- 0.758
- circulation
- 0.507
- carbon
- 0.775
- cost
- 0.625
Reported quantities
- FAR proxy (GFA / lot)
- 0.86
- site utilisation
- 0.767
- gross floor area, m²
- 407.3
- footprint, m²
- 203.6
- carbon proxy, kgCO₂e/m² (A1–A3)
- 341
- cost index / m² (unitless)
- 2.33
- worst habitable room, daylight
- 0.173
- circulation share of GFA
- 26%
- open space, net of parking
- 57%
- courtyard void, m²
- 37.5
- 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 | 79.7 | 5 |
| U1 | 1BR | 79.1 | 5 |
| U2 | 2BR | 79.1 | 6 |
| U3 | 2BR | 79.7 | 6 |
All 24 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 44.9 | 15.75 × 2.85 |
| CORE@1 | shared circulation | shared | 1 | 44.9 | 15.75 × 2.85 |
| U1@0#2 | kitchen | U1 | 0 | 6.2 | 2.45 × 2.55 |
| U1@0#3 | bathroom | U1 | 0 | 5.6 | 2.20 × 2.55 |
| U1@0#0 | entry | U1 | 0 | 4.1 | 1.60 × 2.55 |
| U1@0#1 | living | U1 | 0 | 29.1 | 6.25 × 4.65 |
| U1@0#4 | bedroom primary | U1 | 0 | 34.1 | 6.25 × 5.45 |
| U2@1#2 | kitchen | U2 | 1 | 10.5 | 3.10 × 3.40 |
| U2@1#3 | bathroom | U2 | 1 | 6.1 | 1.80 × 3.40 |
| U2@1#0 | entry | U2 | 1 | 4.6 | 1.35 × 3.40 |
| U2@1#1 | living | U2 | 1 | 26.6 | 6.25 × 4.25 |
| U2@1#4 | bedroom primary | U2 | 1 | 14.0 | 2.80 × 5.00 |
| U2@1#5 | bedroom secondary | U2 | 1 | 17.3 | 3.45 × 5.00 |
| U0@0#0 | entry | U0 | 0 | 3.3 | 1.30 × 2.55 |
| U0@0#3 | bathroom | U0 | 0 | 6.1 | 2.40 × 2.55 |
| U0@0#2 | kitchen | U0 | 0 | 6.6 | 2.60 × 2.55 |
| U0@0#1 | living | U0 | 0 | 29.3 | 6.30 × 4.65 |
| U0@0#4 | bedroom primary | U0 | 0 | 34.3 | 6.30 × 5.45 |
| U3@1#0 | entry | U3 | 1 | 4.6 | 1.35 × 3.40 |
| U3@1#3 | bathroom | U3 | 1 | 6.0 | 1.75 × 3.40 |
| U3@1#2 | kitchen | U3 | 1 | 10.9 | 3.20 × 3.40 |
| U3@1#1 | living | U3 | 1 | 26.8 | 6.30 × 4.25 |
| U3@1#4 | bedroom primary | U3 | 1 | 14.3 | 2.85 × 5.00 |
| U3@1#5 | bedroom secondary | U3 | 1 | 17.3 | 3.45 × 5.00 |