B0056 · cost-optimal · seed 0
B0056-sketch-0-1188
Random sketch + repairF′ · meets all 17 benchmark constraints. Brief B0056
Plan drawing of a duplex on a 13.5 by 23.4 metre lot, 2 storeys, 2 dwellings, 13 rooms. Dwelling U0 (1BR) has 5 rooms totalling 90 square metres. Dwelling U1 (2BR) has 6 rooms totalling 90 square metres. Building footprint 102 square metres; open space 217 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.88, daylight 0.75, privacy 0.80, circulation 0.63, carbon 0.77, cost 0.60.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.879
- daylight
- 0.753
- privacy
- 0.799
- circulation
- 0.634
- carbon
- 0.774
- cost
- 0.598
Reported quantities
- FAR proxy (GFA / lot)
- 0.65
- site utilisation
- 0.921
- gross floor area, m²
- 205.0
- footprint, m²
- 102.5
- carbon proxy, kgCO₂e/m² (A1–A3)
- 341
- cost index / m² (unitless)
- 2.37
- worst habitable room, daylight
- 0.301
- circulation share of GFA
- 18%
- open space, net of parking
- 68%
- courtyard void, m²
- 0.0
- plumbing stacks
- 1
- footprint corners
- 4
- preferred adjacencies met
- 0%
Benchmark constraints
Benchmark rules, not building code.
- C01geometry valid passed
- C02no overlap passed
- C03within buildable passed
- C04min room area passed
- C05min room dimension passed
- C06max room aspect passed
- C07min unit area passed
- C08unit connectivity passed
- C09street access passed
- C10habitable daylight passed
- 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 | 1BR | 90.0 | 5 |
| U1 | 2BR | 90.0 | 6 |
All 13 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| CORE@0 | shared circulation | shared | 0 | 12.5 | 1.25 × 10.00 |
| CORE@1 | shared circulation | shared | 1 | 12.5 | 1.25 × 10.00 |
| U0@0#1 | living | U0 | 0 | 27.7 | 4.20 × 6.60 |
| U0@0#4 | bedroom primary | U0 | 0 | 31.7 | 4.80 × 6.60 |
| U0@0#3 | bathroom | U0 | 0 | 5.6 | 1.65 × 3.40 |
| U0@0#0 | entry | U0 | 0 | 4.1 | 1.20 × 3.40 |
| U0@0#2 | kitchen | U0 | 0 | 20.9 | 6.15 × 3.40 |
| U1@1#4 | bedroom primary | U1 | 1 | 21.8 | 4.80 × 4.55 |
| U1@1#2 | kitchen | U1 | 1 | 13.4 | 4.80 × 2.80 |
| U1@1#5 | bedroom secondary | U1 | 1 | 12.7 | 4.80 × 2.65 |
| U1@1#1 | living | U1 | 1 | 26.3 | 4.20 × 6.25 |
| U1@1#3 | bathroom | U1 | 1 | 7.7 | 2.05 × 3.75 |
| U1@1#0 | entry | U1 | 1 | 8.1 | 2.15 × 3.75 |