B0027 · best infeasible · seed 1
B0027-random-1-460
Random searchB · violates 7 of 17 benchmark constraints (19 violations). Brief B0027
Plan drawing of a fourplex on a 13.2 by 26.9 metre lot, 2 storeys, 4 dwellings, 22 rooms. Dwelling U0 (studio) has 4 rooms totalling 54 square metres. Dwelling U1 (1BR) has 5 rooms totalling 62 square metres. Dwelling U2 (1BR) has 5 rooms totalling 57 square metres. Dwelling U3 (2BR) has 6 rooms totalling 58 square metres. Building footprint 126 square metres; open space 221 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 0.67, daylight 0.41, privacy 0.83, circulation 0.66, carbon 0.74, cost 0.15.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.674
- daylight
- 0.412
- privacy
- 0.825
- circulation
- 0.660
- carbon
- 0.745
- cost
- 0.153
Reported quantities
- FAR proxy (GFA / lot)
- 0.71
- site utilisation
- 0.788
- gross floor area, m²
- 251.5
- footprint, m²
- 125.7
- carbon proxy, kgCO₂e/m² (A1–A3)
- 352
- cost index / m² (unitless)
- 3.06
- worst habitable room, daylight
- 0.000
- circulation share of GFA
- 15%
- open space, net of parking
- 65%
- courtyard void, m²
- 0.0
- plumbing stacks
- 6
- footprint corners
- 4
- preferred adjacencies met
- 67%
Benchmark constraints
Benchmark rules, not building code.
- C01geometry valid passed
- C02no overlap passed
- C03within buildable passed
- C04min room area failedbedroom_secondary 6.9 < 7.5 m^2
- C05min room dimension failedshared_circulation clear dim 1.00 < 1.20 mshared_circulation clear dim 1.00 < 1.20 mentry clear dim 0.95 < 1.20 m…and 2 more
- C06max room aspect failedliving aspect 4.25 > 2.60living aspect 2.70 > 2.60living aspect 2.71 > 2.60…and 1 more
- C07min unit area failed2BR 58.5 < 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 wallbedroom_secondary has 0.00 m of window-capable wallbedroom_primary has 0.00 m of window-capable wall…and 1 more
- 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 | studio | 53.8 | 4 |
| U1 | 1BR | 62.0 | 5 |
| U2 | 1BR | 57.3 | 5 |
| U3 | 2BR | 58.5 | 6 |
All 22 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 9.9 | 9.90 × 1.00 |
| CORE@1 | shared circulation | shared | 1 | 9.9 | 9.90 × 1.00 |
| U1@0#3 | bathroom | U1 | 0 | 8.1 | 2.30 × 3.50 |
| U1@0#2 | kitchen | U1 | 0 | 14.1 | 2.30 × 6.15 |
| U1@0#0 | entry | U1 | 0 | 4.7 | 2.30 × 2.05 |
| U1@0#4 | bedroom primary | U1 | 0 | 13.1 | 3.00 × 4.35 |
| U1@0#1 | living | U1 | 0 | 22.1 | 3.00 × 7.35 |
| U0@0#3 | bathroom | U0 | 0 | 6.1 | 1.85 × 3.30 |
| U0@0#0 | entry | U0 | 0 | 5.5 | 1.85 × 3.00 |
| U0@0#2 | kitchen | U0 | 0 | 10.0 | 1.85 × 5.40 |
| U0@0#1 | living | U0 | 0 | 32.2 | 2.75 × 11.70 |
| U3@1#5 | bedroom secondary | U3 | 1 | 6.9 | 2.30 × 3.00 |
| U3@1#0 | entry | U3 | 1 | 3.2 | 0.95 × 3.40 |
| U3@1#3 | bathroom | U3 | 1 | 4.6 | 1.35 × 3.40 |
| U3@1#2 | kitchen | U3 | 1 | 12.2 | 2.30 × 5.30 |
| U3@1#4 | bedroom primary | U3 | 1 | 11.9 | 2.70 × 4.40 |
| U3@1#1 | living | U3 | 1 | 19.7 | 2.70 × 7.30 |
| U2@1#1 | living | U2 | 1 | 21.3 | 2.80 × 7.60 |
| U2@1#2 | kitchen | U2 | 1 | 11.5 | 2.80 × 4.10 |
| U2@1#4 | bedroom primary | U2 | 1 | 15.4 | 2.10 × 7.35 |
| U2@1#0 | entry | U2 | 1 | 4.8 | 2.10 × 2.30 |
| U2@1#3 | bathroom | U2 | 1 | 4.3 | 2.10 × 2.05 |