B0031 · best infeasible · seed 0
B0031-nsga2-0-1472
NSGA-IID · violates 4 of 17 benchmark constraints (5 violations). Brief B0031
Plan drawing of a courtyard on a 16.2 by 25.5 metre lot, 2 storeys, 4 dwellings, 25 rooms. Dwelling U0 (1BR) has 5 rooms totalling 63 square metres. Dwelling U1 (2BR) has 6 rooms totalling 67 square metres. Dwelling U2 (2BR) has 6 rooms totalling 63 square metres. Dwelling U3 (2BR) has 6 rooms totalling 67 square metres. Building footprint 157 square metres; open space 254 square metres. This design is infeasible; failing categories: bad proportion, insufficient area, no street access, open space failure. Objective scores, higher is better: density 0.77, daylight 0.39, privacy 0.72, circulation 0.54, carbon 0.71, cost 0.30.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.769
- daylight
- 0.388
- privacy
- 0.717
- circulation
- 0.542
- carbon
- 0.714
- cost
- 0.296
Reported quantities
- FAR proxy (GFA / lot)
- 0.76
- site utilisation
- 0.850
- gross floor area, m²
- 314.4
- footprint, m²
- 157.2
- carbon proxy, kgCO₂e/m² (A1–A3)
- 363
- cost index / m² (unitless)
- 2.84
- worst habitable room, daylight
- 0.173
- circulation share of GFA
- 24%
- open space, net of parking
- 62%
- courtyard void, m²
- 22.0
- plumbing stacks
- 5
- footprint corners
- 8
- 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 failedliving aspect 2.81 > 2.60living aspect 2.81 > 2.60
- C07min unit area failed2BR 63.0 < 63.0 m^2
- C08unit connectivity passed
- C09street access failedentry not reachable from the street
- C10habitable daylight passed
- C11required adjacency passed
- C12forbidden door passed
- C13open space passed
- C14courtyard provision failedcourtyard 22.0 < 22.1 m^2
- C15programme complete passed
- C16unit contiguity passed
- C17vertical support passed
Dwellings and rooms
| Dwelling | Type | Area m² | Rooms |
|---|---|---|---|
| U0 | 1BR | 63.0 | 5 |
| U1 | 2BR | 66.9 | 6 |
| U2 | 2BR | 63.0 | 6 |
| U3 | 2BR | 66.9 | 6 |
All 25 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 27.4 | 13.35 × 2.05 |
| CORE@1 | shared circulation | shared | 1 | 27.4 | 13.35 × 2.05 |
| U1@0#3 | bathroom | U1 | 0 | 5.0 | 1.65 × 3.05 |
| U1@0#0 | entry | U1 | 0 | 3.7 | 1.20 × 3.05 |
| U1@0#1 | living | U1 | 0 | 22.8 | 2.85 × 8.00 |
| U1@0#4 | bedroom primary | U1 | 0 | 17.9 | 3.20 × 5.60 |
| U1@0#2 | kitchen | U1 | 0 | 7.7 | 3.20 × 2.40 |
| U1@0#5 | bedroom secondary | U1 | 0 | 9.8 | 3.20 × 3.05 |
| U3@1#0 | entry | U3 | 1 | 5.8 | 1.30 × 4.45 |
| U3@1#3 | bathroom | U3 | 1 | 6.9 | 1.55 × 4.45 |
| U3@1#1 | living | U3 | 1 | 18.8 | 2.85 × 6.60 |
| U3@1#4 | bedroom primary | U3 | 1 | 13.6 | 3.20 × 4.25 |
| U3@1#5 | bedroom secondary | U3 | 1 | 14.1 | 3.20 × 4.40 |
| U3@1#2 | kitchen | U3 | 1 | 7.7 | 3.20 × 2.40 |
| U0@0#3 | bathroom | U0 | 0 | 7.2 | 2.35 × 3.05 |
| U0@0#0 | entry | U0 | 0 | 7.0 | 2.35 × 3.00 |
| U0@0#2 | kitchen | U0 | 0 | 11.8 | 2.35 × 5.00 |
| U0@0#1 | living | U0 | 0 | 24.5 | 3.35 × 7.30 |
| U0@0#4 | bedroom primary | U0 | 0 | 12.6 | 3.35 × 3.75 |
| U2@1#4 | bedroom primary | U2 | 1 | 13.5 | 2.85 × 4.75 |
| U2@1#2 | kitchen | U2 | 1 | 8.1 | 2.85 × 2.85 |
| U2@1#3 | bathroom | U2 | 1 | 5.7 | 1.65 × 3.45 |
| U2@1#0 | entry | U2 | 1 | 4.1 | 1.20 × 3.45 |
| U2@1#5 | bedroom secondary | U2 | 1 | 8.7 | 2.85 × 3.05 |
| U2@1#1 | living | U2 | 1 | 22.8 | 2.85 × 8.00 |