B0021 · best infeasible · seed 0
B0021-nsga2-0-823
NSGA-IID · violates 2 of 17 benchmark constraints (2 violations). Brief B0021
Plan drawing of a fourplex on a 14.4 by 39.3 metre lot, 2 storeys, 4 dwellings, 26 rooms. Dwelling U0 (2BR) has 6 rooms totalling 100 square metres. Dwelling U1 (2BR) has 6 rooms totalling 105 square metres. Dwelling U2 (2BR) has 6 rooms totalling 99 square metres. Dwelling U3 (2BR) has 6 rooms totalling 106 square metres. Building footprint 223 square metres; open space 350 square metres. This design is infeasible; failing categories: adjacency violation, no street access. Objective scores, higher is better: density 0.64, daylight 0.47, privacy 0.88, circulation 0.67, carbon 0.85, cost 0.57.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.641
- daylight
- 0.466
- privacy
- 0.877
- circulation
- 0.671
- carbon
- 0.853
- cost
- 0.572
Reported quantities
- FAR proxy (GFA / lot)
- 0.79
- site utilisation
- 0.766
- gross floor area, m²
- 445.6
- footprint, m²
- 222.8
- carbon proxy, kgCO₂e/m² (A1–A3)
- 313
- cost index / m² (unitless)
- 2.41
- worst habitable room, daylight
- 0.205
- circulation share of GFA
- 13%
- open space, net of parking
- 58%
- courtyard void, m²
- 0.0
- plumbing stacks
- 7
- footprint corners
- 4
- 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 failedentry not reachable from the street
- C10habitable daylight passed
- C11required adjacency failedrequired adjacency kitchen-living absent
- 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 | 2BR | 99.6 | 6 |
| U1 | 2BR | 105.3 | 6 |
| U2 | 2BR | 98.7 | 6 |
| U3 | 2BR | 106.2 | 6 |
All 26 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 17.9 | 9.40 × 1.90 |
| CORE@1 | shared circulation | shared | 1 | 17.9 | 9.40 × 1.90 |
| U1@0#3 | bathroom | U1 | 0 | 5.6 | 3.60 × 1.55 |
| U1@0#2 | kitchen | U1 | 0 | 11.2 | 3.60 × 3.10 |
| U1@0#0 | entry | U1 | 0 | 4.3 | 3.60 × 1.20 |
| U1@0#4 | bedroom primary | U1 | 0 | 19.3 | 3.60 × 5.35 |
| U1@0#1 | living | U1 | 0 | 40.3 | 5.80 × 6.95 |
| U1@0#5 | bedroom secondary | U1 | 0 | 24.6 | 5.80 × 4.25 |
| U0@0#2 | kitchen | U0 | 0 | 20.3 | 3.90 × 5.20 |
| U0@0#0 | entry | U0 | 0 | 5.1 | 3.90 × 1.30 |
| U0@0#5 | bedroom secondary | U0 | 0 | 9.6 | 3.90 × 2.45 |
| U0@0#3 | bathroom | U0 | 0 | 6.4 | 3.90 × 1.65 |
| U0@0#4 | bedroom primary | U0 | 0 | 23.6 | 5.50 × 4.30 |
| U0@0#1 | living | U0 | 0 | 34.6 | 5.50 × 6.30 |
| U3@1#5 | bedroom secondary | U3 | 1 | 16.9 | 4.45 × 3.80 |
| U3@1#3 | bathroom | U3 | 1 | 8.0 | 4.45 × 1.80 |
| U3@1#4 | bedroom primary | U3 | 1 | 25.4 | 4.45 × 5.70 |
| U3@1#0 | entry | U3 | 1 | 5.5 | 1.35 × 4.05 |
| U3@1#2 | kitchen | U3 | 1 | 14.6 | 3.60 × 4.05 |
| U3@1#1 | living | U3 | 1 | 35.9 | 4.95 × 7.25 |
| U2@1#5 | bedroom secondary | U2 | 1 | 19.6 | 4.85 × 4.05 |
| U2@1#0 | entry | U2 | 1 | 7.3 | 4.85 × 1.50 |
| U2@1#4 | bedroom primary | U2 | 1 | 24.0 | 4.85 × 4.95 |
| U2@1#3 | bathroom | U2 | 1 | 8.6 | 4.55 × 1.90 |
| U2@1#1 | living | U2 | 1 | 22.8 | 4.55 × 5.00 |
| U2@1#2 | kitchen | U2 | 1 | 16.4 | 4.55 × 3.60 |