B0019 · carbon-optimal · seed 0
B0019-heuristic_nsga2-0-1339
Heuristic-seeded NSGA-IIA+D · meets all 17 benchmark constraints. Brief B0019
Plan drawing of a courtyard on a 21.7 by 27.8 metre lot, 2 storeys, 4 dwellings, 24 rooms. Dwelling U0 (1BR) has 5 rooms totalling 77 square metres. Dwelling U1 (1BR) has 5 rooms totalling 77 square metres. Dwelling U2 (2BR) has 6 rooms totalling 77 square metres. Dwelling U3 (2BR) has 6 rooms totalling 77 square metres. Building footprint 258 square metres; open space 342 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.81, daylight 0.64, privacy 0.74, circulation 0.53, carbon 0.85, cost 0.76.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.808
- daylight
- 0.636
- privacy
- 0.738
- circulation
- 0.531
- carbon
- 0.850
- cost
- 0.759
Reported quantities
- FAR proxy (GFA / lot)
- 0.86
- site utilisation
- 0.875
- gross floor area, m²
- 516.8
- footprint, m²
- 258.4
- carbon proxy, kgCO₂e/m² (A1–A3)
- 314
- cost index / m² (unitless)
- 2.12
- worst habitable room, daylight
- 0.218
- circulation share of GFA
- 44%
- open space, net of parking
- 57%
- courtyard void, m²
- 36.8
- 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 | 76.8 | 5 |
| U1 | 1BR | 76.8 | 5 |
| U2 | 2BR | 76.8 | 6 |
| U3 | 2BR | 76.8 | 6 |
All 24 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 104.7 | 17.90 × 5.85 |
| CORE@1 | shared circulation | shared | 1 | 104.7 | 17.90 × 5.85 |
| U1@0#2 | kitchen | U1 | 0 | 14.3 | 4.20 × 3.40 |
| U1@0#3 | bathroom | U1 | 0 | 4.9 | 3.05 × 1.60 |
| U1@0#0 | entry | U1 | 0 | 5.5 | 3.05 × 1.80 |
| U1@0#1 | living | U1 | 0 | 30.1 | 7.25 × 4.15 |
| U1@0#4 | bedroom primary | U1 | 0 | 22.1 | 7.25 × 3.05 |
| U2@1#2 | kitchen | U2 | 1 | 10.3 | 3.60 × 2.85 |
| U2@1#3 | bathroom | U2 | 1 | 5.8 | 2.05 × 2.85 |
| U2@1#0 | entry | U2 | 1 | 4.6 | 1.60 × 2.85 |
| U2@1#1 | living | U2 | 1 | 25.7 | 7.25 × 3.55 |
| U2@1#4 | bedroom primary | U2 | 1 | 17.4 | 4.15 × 4.20 |
| U2@1#5 | bedroom secondary | U2 | 1 | 13.0 | 3.10 × 4.20 |
| U0@0#2 | kitchen | U0 | 0 | 12.8 | 3.75 × 3.40 |
| U0@0#3 | bathroom | U0 | 0 | 7.3 | 3.50 × 2.10 |
| U0@0#0 | entry | U0 | 0 | 4.5 | 3.50 × 1.30 |
| U0@0#1 | living | U0 | 0 | 30.1 | 7.25 × 4.15 |
| U0@0#4 | bedroom primary | U0 | 0 | 22.1 | 7.25 × 3.05 |
| U3@1#0 | entry | U3 | 1 | 4.4 | 1.55 × 2.85 |
| U3@1#3 | bathroom | U3 | 1 | 5.8 | 2.05 × 2.85 |
| U3@1#2 | kitchen | U3 | 1 | 10.4 | 3.65 × 2.85 |
| U3@1#1 | living | U3 | 1 | 25.7 | 7.25 × 3.55 |
| U3@1#4 | bedroom primary | U3 | 1 | 17.4 | 4.15 × 4.20 |
| U3@1#5 | bedroom secondary | U3 | 1 | 13.0 | 3.10 × 4.20 |