B0021 · best infeasible · seed 2
B0021-random-2-1123
Random searchB · violates 5 of 17 benchmark constraints (34 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 91 square metres. Dwelling U1 (2BR) has 6 rooms totalling 72 square metres. Dwelling U2 (2BR) has 6 rooms totalling 80 square metres. Dwelling U3 (2BR) has 6 rooms totalling 84 square metres. Building footprint 214 square metres; open space 364 square metres. This design is infeasible; failing categories: adjacency violation, bad proportion, daylight failure, no street access. Objective scores, higher is better: density 0.59, daylight 0.33, privacy 0.88, circulation 0.44, carbon 0.82, cost 0.46.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.593
- daylight
- 0.327
- privacy
- 0.878
- circulation
- 0.439
- carbon
- 0.816
- cost
- 0.465
Reported quantities
- FAR proxy (GFA / lot)
- 0.76
- site utilisation
- 0.735
- gross floor area, m²
- 427.4
- footprint, m²
- 213.7
- carbon proxy, kgCO₂e/m² (A1–A3)
- 326
- cost index / m² (unitless)
- 2.58
- worst habitable room, daylight
- 0.000
- circulation share of GFA
- 29%
- open space, net of parking
- 59%
- courtyard void, m²
- 0.0
- plumbing stacks
- 8
- footprint corners
- 4
- 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 failedkitchen clear dim 1.70 < 1.80 mbedroom_secondary clear dim 1.70 < 2.20 mbedroom_primary clear dim 2.10 < 2.70 m…and 8 more
- C06max room aspect failedkitchen aspect 3.88 > 3.00bedroom_secondary aspect 4.82 > 2.60bedroom_primary aspect 3.83 > 2.40…and 10 more
- C07min unit area passed
- C08unit connectivity passed
- C09street access failedentry not reachable from the street
- C10habitable daylight failedbedroom_primary has 0.00 m of window-capable wallkitchen has 0.00 m of window-capable wallliving has 0.00 m of window-capable wall…and 1 more
- C11required adjacency failedrequired adjacency entry-living absentrequired adjacency entry-living absentrequired adjacency kitchen-living absent…and 2 more
- 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 | 91.4 | 6 |
| U1 | 2BR | 72.4 | 6 |
| U2 | 2BR | 80.0 | 6 |
| U3 | 2BR | 83.8 | 6 |
All 26 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 49.9 | 8.60 × 5.80 |
| CORE@1 | shared circulation | shared | 1 | 49.9 | 8.60 × 5.80 |
| U1@0#0 | entry | U1 | 0 | 3.9 | 1.70 × 2.30 |
| U1@0#2 | kitchen | U1 | 0 | 11.2 | 1.70 × 6.60 |
| U1@0#3 | bathroom | U1 | 0 | 3.3 | 1.70 × 1.95 |
| U1@0#5 | bedroom secondary | U1 | 0 | 13.9 | 1.70 × 8.20 |
| U1@0#4 | bedroom primary | U1 | 0 | 16.9 | 2.10 × 8.05 |
| U1@0#1 | living | U1 | 0 | 23.1 | 2.10 × 11.00 |
| U0@0#0 | entry | U0 | 0 | 9.6 | 2.05 × 4.70 |
| U0@0#2 | kitchen | U0 | 0 | 11.9 | 2.05 × 5.80 |
| U0@0#3 | bathroom | U0 | 0 | 5.1 | 2.05 × 2.50 |
| U0@0#5 | bedroom secondary | U0 | 0 | 12.4 | 2.05 × 6.05 |
| U0@0#4 | bedroom primary | U0 | 0 | 25.2 | 2.75 × 9.15 |
| U0@0#1 | living | U0 | 0 | 27.2 | 2.75 × 9.90 |
| U3@1#1 | living | U3 | 1 | 35.4 | 2.60 × 13.60 |
| U3@1#4 | bedroom primary | U3 | 1 | 14.2 | 2.60 × 5.45 |
| U3@1#5 | bedroom secondary | U3 | 1 | 13.8 | 1.80 × 7.65 |
| U3@1#3 | bathroom | U3 | 1 | 5.7 | 1.80 × 3.15 |
| U3@1#0 | entry | U3 | 1 | 4.2 | 1.80 × 2.35 |
| U3@1#2 | kitchen | U3 | 1 | 10.6 | 1.80 × 5.90 |
| U2@1#2 | kitchen | U2 | 1 | 5.6 | 2.15 × 2.60 |
| U2@1#1 | living | U2 | 1 | 23.3 | 2.15 × 10.85 |
| U2@1#3 | bathroom | U2 | 1 | 12.0 | 2.15 × 5.60 |
| U2@1#0 | entry | U2 | 1 | 5.1 | 2.05 × 2.50 |
| U2@1#4 | bedroom primary | U2 | 1 | 20.5 | 2.05 × 10.00 |
| U2@1#5 | bedroom secondary | U2 | 1 | 13.4 | 2.05 × 6.55 |