B0033 · best infeasible · seed 2
B0033-sketch-2-1137
Random sketch + repairF′ · violates 5 of 17 benchmark constraints (5 violations). Brief B0033
Plan drawing of a fourplex on a 15.0 by 23.9 metre lot, 2 storeys, 4 dwellings, 22 rooms. Dwelling U0 (studio) has 4 rooms totalling 47 square metres. Dwelling U1 (1BR) has 5 rooms totalling 59 square metres. Dwelling U2 (1BR) has 5 rooms totalling 48 square metres. Dwelling U3 (2BR) has 6 rooms totalling 58 square metres. Building footprint 119 square metres; open space 239 square metres. This design is infeasible; failing categories: adjacency violation, bad proportion, insufficient area, no street access. Objective scores, higher is better: density 0.99, daylight 0.49, privacy 0.77, circulation 0.58, carbon 0.74, cost 0.32.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.993
- daylight
- 0.486
- privacy
- 0.767
- circulation
- 0.576
- carbon
- 0.738
- cost
- 0.318
Reported quantities
- FAR proxy (GFA / lot)
- 0.67
- site utilisation
- 0.995
- gross floor area, m²
- 238.7
- footprint, m²
- 119.3
- carbon proxy, kgCO₂e/m² (A1–A3)
- 354
- cost index / m² (unitless)
- 2.81
- worst habitable room, daylight
- 0.113
- circulation share of GFA
- 23%
- open space, net of parking
- 67%
- courtyard void, m²
- 0.0
- plumbing stacks
- 3
- footprint corners
- 4
- preferred adjacencies met
- 100%
Benchmark constraints
Benchmark rules, not building code.
- C01geometry valid passed
- C02no overlap passed
- C03within buildable passed
- C04min room area passed
- C05min room dimension failedliving clear dim 2.55 < 2.70 m
- C06max room aspect failedbathroom aspect 3.05 > 3.00
- C07min unit area failed2BR 57.9 < 63.0 m^2
- C08unit connectivity passed
- C09street access failedentry not reachable from the street
- C10habitable daylight passed
- C11required adjacency failedrequired adjacency kitchen-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 | 46.8 | 4 |
| U1 | 1BR | 59.3 | 5 |
| U2 | 1BR | 48.3 | 5 |
| U3 | 2BR | 57.9 | 6 |
All 22 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 13.2 | 11.00 × 1.20 |
| CORE@1 | shared circulation | shared | 1 | 13.2 | 11.00 × 1.20 |
| U1@0#0 | entry | U1 | 0 | 7.3 | 2.90 × 2.50 |
| U1@0#1 | living | U1 | 0 | 11.7 | 2.90 × 4.05 |
| U1@0#2 | kitchen | U1 | 0 | 9.0 | 2.90 × 3.10 |
| U1@0#3 | bathroom | U1 | 0 | 18.5 | 3.25 × 5.70 |
| U1@0#4 | bedroom primary | U1 | 0 | 12.8 | 3.25 × 3.95 |
| U0@0#3 | bathroom | U0 | 0 | 12.2 | 2.00 × 6.10 |
| U0@0#0 | entry | U0 | 0 | 6.1 | 2.85 × 2.15 |
| U0@0#1 | living | U0 | 0 | 11.3 | 2.85 × 3.95 |
| U0@0#2 | kitchen | U0 | 0 | 17.2 | 4.85 × 3.55 |
| U3@1#2 | kitchen | U3 | 1 | 12.0 | 6.00 × 2.00 |
| U3@1#3 | bathroom | U3 | 1 | 5.3 | 1.50 × 3.50 |
| U3@1#0 | entry | U3 | 1 | 4.5 | 1.30 × 3.50 |
| U3@1#1 | living | U3 | 1 | 11.2 | 3.20 × 3.50 |
| U3@1#4 | bedroom primary | U3 | 1 | 13.9 | 3.35 × 4.15 |
| U3@1#5 | bedroom secondary | U3 | 1 | 11.0 | 2.65 × 4.15 |
| U2@1#0 | entry | U2 | 1 | 10.0 | 5.00 × 2.00 |
| U2@1#1 | living | U2 | 1 | 12.8 | 5.00 × 2.55 |
| U2@1#4 | bedroom primary | U2 | 1 | 11.6 | 3.50 × 3.30 |
| U2@1#3 | bathroom | U2 | 1 | 5.0 | 1.50 × 3.30 |
| U2@1#2 | kitchen | U2 | 1 | 9.0 | 5.00 × 1.80 |