B0063 · best infeasible · seed 2
B0063-heuristic_nsga2-2-1131
Heuristic-seeded NSGA-IIA+D · violates 4 of 17 benchmark constraints (5 violations). Brief B0063
Plan drawing of a fourplex on a 14.6 by 26.9 metre lot, 2 storeys, 4 dwellings, 24 rooms. Dwelling U0 (1BR) has 5 rooms totalling 66 square metres. Dwelling U1 (1BR) has 5 rooms totalling 59 square metres. Dwelling U2 (2BR) has 6 rooms totalling 63 square metres. Dwelling U3 (2BR) has 6 rooms totalling 62 square metres. Building footprint 136 square metres; open space 260 square metres. This design is infeasible; failing categories: bad proportion, insufficient area, no street access. Objective scores, higher is better: density 0.55, daylight 0.56, privacy 0.79, circulation 0.69, carbon 0.77, cost 0.24.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.546
- daylight
- 0.563
- privacy
- 0.787
- circulation
- 0.685
- carbon
- 0.768
- cost
- 0.236
Reported quantities
- FAR proxy (GFA / lot)
- 0.69
- site utilisation
- 0.705
- gross floor area, m²
- 271.4
- footprint, m²
- 135.7
- carbon proxy, kgCO₂e/m² (A1–A3)
- 343
- cost index / m² (unitless)
- 2.93
- worst habitable room, daylight
- 0.291
- circulation share of GFA
- 13%
- open space, net of parking
- 61%
- courtyard void, m²
- 0.0
- plumbing stacks
- 6
- footprint corners
- 4
- preferred adjacencies met
- 50%
Benchmark constraints
Benchmark rules, not building code.
- C01geometry valid passed
- C02no overlap passed
- C03within buildable passed
- C04min room area passed
- C05min room dimension failedbedroom_primary clear dim 2.65 < 2.70 m
- C06max room aspect failedliving aspect 2.83 > 2.60living aspect 2.78 > 2.60
- C07min unit area failed2BR 61.9 < 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 passed
- C15programme complete passed
- C16unit contiguity passed
- C17vertical support passed
Dwellings and rooms
| Dwelling | Type | Area m² | Rooms |
|---|---|---|---|
| U0 | 1BR | 65.6 | 5 |
| U1 | 1BR | 59.5 | 5 |
| U2 | 2BR | 63.1 | 6 |
| U3 | 2BR | 61.9 | 6 |
All 24 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 10.7 | 8.20 × 1.30 |
| CORE@1 | shared circulation | shared | 1 | 10.7 | 8.20 × 1.30 |
| U1@0#2 | kitchen | U1 | 0 | 9.6 | 2.75 × 3.50 |
| U1@0#0 | entry | U1 | 0 | 3.7 | 2.75 × 1.35 |
| U1@0#3 | bathroom | U1 | 0 | 6.6 | 2.75 × 2.40 |
| U1@0#1 | living | U1 | 0 | 24.5 | 5.45 × 4.50 |
| U1@0#4 | bedroom primary | U1 | 0 | 15.0 | 5.45 × 2.75 |
| U0@0#3 | bathroom | U0 | 0 | 6.2 | 2.90 × 2.15 |
| U0@0#4 | bedroom primary | U0 | 0 | 17.0 | 2.90 × 5.85 |
| U0@0#1 | living | U0 | 0 | 28.4 | 5.30 × 5.35 |
| U0@0#2 | kitchen | U0 | 0 | 10.1 | 3.80 × 2.65 |
| U0@0#0 | entry | U0 | 0 | 4.0 | 1.50 × 2.65 |
| U3@1#2 | kitchen | U3 | 1 | 8.2 | 4.10 × 2.00 |
| U3@1#3 | bathroom | U3 | 1 | 4.6 | 2.30 × 2.00 |
| U3@1#0 | entry | U3 | 1 | 3.6 | 1.80 × 2.00 |
| U3@1#1 | living | U3 | 1 | 23.8 | 8.20 × 2.90 |
| U3@1#4 | bedroom primary | U3 | 1 | 11.4 | 4.30 × 2.65 |
| U3@1#5 | bedroom secondary | U3 | 1 | 10.3 | 3.90 × 2.65 |
| U2@1#2 | kitchen | U2 | 1 | 9.2 | 4.50 × 2.05 |
| U2@1#3 | bathroom | U2 | 1 | 5.1 | 2.50 × 2.05 |
| U2@1#0 | entry | U2 | 1 | 2.5 | 1.20 × 2.05 |
| U2@1#1 | living | U2 | 1 | 24.2 | 8.20 × 2.95 |
| U2@1#4 | bedroom primary | U2 | 1 | 14.0 | 5.20 × 2.70 |
| U2@1#5 | bedroom secondary | U2 | 1 | 8.1 | 3.00 × 2.70 |