B0069 · best infeasible · seed 2
B0069-random-2-378
Random searchB · violates 7 of 17 benchmark constraints (19 violations). Brief B0069
Plan drawing of a fourplex on a 16.4 by 23.7 metre lot, 2 storeys, 4 dwellings, 24 rooms. Dwelling U0 (1BR) has 5 rooms totalling 64 square metres. Dwelling U1 (1BR) has 5 rooms totalling 56 square metres. Dwelling U2 (2BR) has 6 rooms totalling 63 square metres. Dwelling U3 (2BR) has 6 rooms totalling 57 square metres. Building footprint 133 square metres; open space 256 square metres. This design is infeasible; failing categories: adjacency violation, bad proportion, daylight failure, insufficient area, no street access. Objective scores, higher is better: density 0.85, daylight 0.53, privacy 0.88, circulation 0.65, carbon 0.76, cost 0.21.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.845
- daylight
- 0.526
- privacy
- 0.878
- circulation
- 0.648
- carbon
- 0.757
- cost
- 0.210
Reported quantities
- FAR proxy (GFA / lot)
- 0.68
- site utilisation
- 0.900
- gross floor area, m²
- 265.6
- footprint, m²
- 132.8
- carbon proxy, kgCO₂e/m² (A1–A3)
- 347
- cost index / m² (unitless)
- 2.98
- worst habitable room, daylight
- 0.000
- circulation share of GFA
- 15%
- open space, net of parking
- 62%
- 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 failedbedroom_secondary 7.1 < 7.5 m^2
- C05min room dimension failedshared_circulation clear dim 1.05 < 1.20 mshared_circulation clear dim 1.05 < 1.20 mbedroom_primary clear dim 2.65 < 2.70 m…and 5 more
- C06max room aspect failedliving aspect 3.25 > 2.60living aspect 2.61 > 2.60bathroom aspect 3.35 > 3.00
- C07min unit area failed2BR 57.4 < 63.0 m^2
- C08unit connectivity passed
- C09street access failedentry not reachable from the streetentry not reachable from the street
- C10habitable daylight failedkitchen has 0.00 m of window-capable wallkitchen has 0.00 m of window-capable wall
- C11required adjacency failedrequired adjacency entry-living absentrequired adjacency entry-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 | 1BR | 64.1 | 5 |
| U1 | 1BR | 56.4 | 5 |
| U2 | 2BR | 63.0 | 6 |
| U3 | 2BR | 57.4 | 6 |
All 24 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 12.3 | 11.75 × 1.05 |
| CORE@1 | shared circulation | shared | 1 | 12.3 | 11.75 × 1.05 |
| U0@0#3 | bathroom | U0 | 0 | 4.7 | 2.05 × 2.30 |
| U0@0#0 | entry | U0 | 0 | 4.4 | 2.05 × 2.15 |
| U0@0#2 | kitchen | U0 | 0 | 11.9 | 2.05 × 5.80 |
| U0@0#1 | living | U0 | 0 | 23.7 | 4.20 × 5.65 |
| U0@0#4 | bedroom primary | U0 | 0 | 19.3 | 4.20 × 4.60 |
| U1@0#2 | kitchen | U1 | 0 | 8.0 | 2.65 × 3.00 |
| U1@0#3 | bathroom | U1 | 0 | 4.0 | 2.65 × 1.50 |
| U1@0#4 | bedroom primary | U1 | 0 | 15.2 | 2.65 × 5.75 |
| U1@0#0 | entry | U1 | 0 | 2.9 | 2.85 × 1.00 |
| U1@0#1 | living | U1 | 0 | 26.4 | 2.85 × 9.25 |
| U3@1#3 | bathroom | U3 | 1 | 3.7 | 1.30 × 2.85 |
| U3@1#0 | entry | U3 | 1 | 3.6 | 1.25 × 2.85 |
| U3@1#5 | bedroom secondary | U3 | 1 | 7.1 | 2.55 × 2.80 |
| U3@1#4 | bedroom primary | U3 | 1 | 11.7 | 2.55 × 4.60 |
| U3@1#2 | kitchen | U3 | 1 | 11.3 | 3.05 × 3.70 |
| U3@1#1 | living | U3 | 1 | 20.0 | 3.05 × 6.55 |
| U2@1#2 | kitchen | U2 | 1 | 8.3 | 2.80 × 2.95 |
| U2@1#1 | living | U2 | 1 | 20.4 | 2.80 × 7.30 |
| U2@1#4 | bedroom primary | U2 | 1 | 18.3 | 3.35 × 5.45 |
| U2@1#3 | bathroom | U2 | 1 | 3.4 | 3.35 × 1.00 |
| U2@1#5 | bedroom secondary | U2 | 1 | 8.7 | 2.30 × 3.80 |
| U2@1#0 | entry | U2 | 1 | 4.0 | 1.05 × 3.80 |