B0045 · best infeasible · seed 1
B0045-random-1-760
Random searchB · violates 7 of 17 benchmark constraints (15 violations). Brief B0045
Plan drawing of a fourplex on a 17.0 by 26.0 metre lot, 2 storeys, 4 dwellings, 26 rooms. Dwelling U0 (2BR) has 6 rooms totalling 70 square metres. Dwelling U1 (2BR) has 6 rooms totalling 62 square metres. Dwelling U2 (2BR) has 6 rooms totalling 69 square metres. Dwelling U3 (2BR) has 6 rooms totalling 63 square metres. Building footprint 157 square metres; open space 280 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 0.73, daylight 0.50, privacy 0.79, circulation 0.59, carbon 0.79, cost 0.42.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.730
- daylight
- 0.505
- privacy
- 0.790
- circulation
- 0.587
- carbon
- 0.795
- cost
- 0.419
Reported quantities
- FAR proxy (GFA / lot)
- 0.71
- site utilisation
- 0.824
- gross floor area, m²
- 313.7
- footprint, m²
- 156.9
- carbon proxy, kgCO₂e/m² (A1–A3)
- 334
- cost index / m² (unitless)
- 2.65
- worst habitable room, daylight
- 0.000
- circulation share of GFA
- 20%
- open space, net of parking
- 65%
- courtyard void, m²
- 0.0
- plumbing stacks
- 5
- footprint corners
- 4
- preferred adjacencies met
- 75%
Benchmark constraints
Benchmark rules, not building code.
- C01geometry valid passed
- C02no overlap passed
- C03within buildable passed
- C04min room area failedbedroom_primary 10.6 < 11.0 m^2bedroom_primary 9.9 < 11.0 m^2bathroom 2.8 < 3.2 m^2
- C05min room dimension failedbedroom_primary clear dim 2.55 < 2.70 mbathroom clear dim 1.15 < 1.50 mentry clear dim 1.10 < 1.20 m
- C06max room aspect failedliving aspect 2.78 > 2.60
- C07min unit area failed2BR 61.7 < 63.0 m^22BR 62.7 < 63.0 m^2
- C08unit connectivity passed
- C09street access failedentry not reachable from the streetentry not reachable from the street
- C10habitable daylight failedbedroom_primary has 0.00 m of window-capable wallbedroom_secondary has 0.00 m of window-capable wallbedroom_secondary has 0.00 m of window-capable wall
- C11required adjacency failedrequired 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 | 2BR | 70.0 | 6 |
| U1 | 2BR | 61.7 | 6 |
| U2 | 2BR | 69.0 | 6 |
| U3 | 2BR | 62.7 | 6 |
All 26 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 25.2 | 12.60 × 2.00 |
| CORE@1 | shared circulation | shared | 1 | 25.2 | 12.60 × 2.00 |
| U0@0#0 | entry | U0 | 0 | 3.9 | 1.25 × 3.10 |
| U0@0#3 | bathroom | U0 | 0 | 6.7 | 2.15 × 3.10 |
| U0@0#2 | kitchen | U0 | 0 | 11.4 | 3.40 × 3.35 |
| U0@0#5 | bedroom secondary | U0 | 0 | 13.6 | 3.40 × 4.00 |
| U0@0#1 | living | U0 | 0 | 18.1 | 3.30 × 5.50 |
| U0@0#4 | bedroom primary | U0 | 0 | 16.3 | 3.30 × 4.95 |
| U1@0#1 | living | U1 | 0 | 24.2 | 2.95 × 8.20 |
| U1@0#0 | entry | U1 | 0 | 2.9 | 1.30 × 2.25 |
| U1@0#3 | bathroom | U1 | 0 | 3.7 | 1.65 × 2.25 |
| U1@0#2 | kitchen | U1 | 0 | 8.3 | 2.95 × 2.80 |
| U1@0#5 | bedroom secondary | U1 | 0 | 11.9 | 2.95 × 4.05 |
| U1@0#4 | bedroom primary | U1 | 0 | 10.6 | 2.95 × 3.60 |
| U3@1#4 | bedroom primary | U3 | 1 | 9.9 | 2.55 × 3.90 |
| U3@1#3 | bathroom | U3 | 1 | 2.8 | 1.15 × 2.45 |
| U3@1#0 | entry | U3 | 1 | 3.4 | 1.40 × 2.45 |
| U3@1#5 | bedroom secondary | U3 | 1 | 10.5 | 2.55 × 4.10 |
| U3@1#2 | kitchen | U3 | 1 | 12.4 | 3.45 × 3.60 |
| U3@1#1 | living | U3 | 1 | 23.6 | 3.45 × 6.85 |
| U2@1#2 | kitchen | U2 | 1 | 8.1 | 2.90 × 2.80 |
| U2@1#3 | bathroom | U2 | 1 | 4.1 | 1.80 × 2.30 |
| U2@1#0 | entry | U2 | 1 | 2.5 | 1.10 × 2.30 |
| U2@1#4 | bedroom primary | U2 | 1 | 15.5 | 2.90 × 5.35 |
| U2@1#1 | living | U2 | 1 | 26.3 | 3.70 × 7.10 |
| U2@1#5 | bedroom secondary | U2 | 1 | 12.4 | 3.70 × 3.35 |