B0003 · best infeasible · seed 1
B0003-random-1-426
Random searchB · violates 4 of 17 benchmark constraints (9 violations). Brief B0003
Plan drawing of a fourplex on a 15.0 by 24.2 metre lot, 2 storeys, 4 dwellings, 22 rooms. Dwelling U0 (studio) has 4 rooms totalling 57 square metres. Dwelling U1 (1BR) has 5 rooms totalling 55 square metres. Dwelling U2 (1BR) has 5 rooms totalling 47 square metres. Dwelling U3 (2BR) has 6 rooms totalling 65 square metres. Building footprint 140 square metres; open space 216 square metres. This design is infeasible; failing categories: bad proportion, daylight failure, insufficient area. Objective scores, higher is better: density 0.62, daylight 0.38, privacy 0.81, circulation 0.50, carbon 0.78, cost 0.34.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.617
- daylight
- 0.378
- privacy
- 0.809
- circulation
- 0.499
- carbon
- 0.783
- cost
- 0.341
Reported quantities
- FAR proxy (GFA / lot)
- 0.77
- site utilisation
- 0.751
- gross floor area, m²
- 279.6
- footprint, m²
- 139.8
- carbon proxy, kgCO₂e/m² (A1–A3)
- 338
- cost index / m² (unitless)
- 2.77
- worst habitable room, daylight
- 0.000
- circulation share of GFA
- 26%
- open space, net of parking
- 53%
- courtyard void, m²
- 0.0
- plumbing stacks
- 5
- 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 6.2 < 7.5 m^2
- C05min room dimension failedentry clear dim 1.10 < 1.20 mbedroom_primary clear dim 2.60 < 2.70 mbedroom_primary clear dim 1.95 < 2.70 m
- C06max room aspect failedbedroom_primary aspect 2.48 > 2.40kitchen aspect 3.15 > 3.00bedroom_primary aspect 2.90 > 2.40
- C07min unit area passed
- C08unit connectivity passed
- C09street access passed
- C10habitable daylight failedkitchen has 0.00 m of window-capable wallliving has 0.00 m of window-capable wall
- 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 | studio | 56.8 | 4 |
| U1 | 1BR | 55.4 | 5 |
| U2 | 1BR | 47.3 | 5 |
| U3 | 2BR | 64.9 | 6 |
All 22 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 27.6 | 11.75 × 2.35 |
| CORE@1 | shared circulation | shared | 1 | 27.6 | 11.75 × 2.35 |
| U1@0#1 | living | U1 | 0 | 20.8 | 3.20 × 6.50 |
| U1@0#2 | kitchen | U1 | 0 | 9.8 | 3.20 × 3.05 |
| U1@0#0 | entry | U1 | 0 | 3.4 | 1.10 × 3.10 |
| U1@0#3 | bathroom | U1 | 0 | 4.7 | 1.50 × 3.10 |
| U1@0#4 | bedroom primary | U1 | 0 | 16.8 | 2.60 × 6.45 |
| U0@0#2 | kitchen | U0 | 0 | 12.0 | 1.95 × 6.15 |
| U0@0#3 | bathroom | U0 | 0 | 6.6 | 1.95 × 3.40 |
| U0@0#0 | entry | U0 | 0 | 8.2 | 4.00 × 2.05 |
| U0@0#1 | living | U0 | 0 | 30.0 | 4.00 × 7.50 |
| U3@1#0 | entry | U3 | 1 | 3.8 | 1.35 × 2.80 |
| U3@1#3 | bathroom | U3 | 1 | 7.4 | 2.65 × 2.80 |
| U3@1#1 | living | U3 | 1 | 27.0 | 4.00 × 6.75 |
| U3@1#5 | bedroom secondary | U3 | 1 | 6.2 | 2.80 × 2.20 |
| U3@1#4 | bedroom primary | U3 | 1 | 13.6 | 2.80 × 4.85 |
| U3@1#2 | kitchen | U3 | 1 | 7.0 | 2.80 × 2.50 |
| U2@1#0 | entry | U2 | 1 | 2.8 | 1.95 × 1.45 |
| U2@1#4 | bedroom primary | U2 | 1 | 11.0 | 1.95 × 5.65 |
| U2@1#3 | bathroom | U2 | 1 | 4.8 | 1.95 × 2.45 |
| U2@1#1 | living | U2 | 1 | 19.4 | 3.00 × 6.45 |
| U2@1#2 | kitchen | U2 | 1 | 9.3 | 3.00 × 3.10 |