B0040 · cost-optimal · seed 0
B0040-sketch-0-1119
Random sketch + repairF′ · meets all 17 benchmark constraints. Brief B0040
Plan drawing of a rowhouse on a 20.7 by 22.5 metre lot, 2 storeys, 3 dwellings, 29 rooms. Dwelling U0 (2BR) has 9 rooms totalling 152 square metres. Dwelling U1 (3BR) has 11 rooms totalling 113 square metres. Dwelling U2 (2BR) has 9 rooms totalling 110 square metres. Building footprint 187 square metres; open space 280 square metres. This design satisfies every benchmark hard constraint. Objective scores, higher is better: density 0.84, daylight 0.61, privacy 0.91, circulation 0.46, carbon 0.82, cost 0.60.
Objective vector
Proxy scores in [0, 1], higher is better. Kept as a vector; there is no overall score.
- density
- 0.842
- daylight
- 0.613
- privacy
- 0.914
- circulation
- 0.460
- carbon
- 0.819
- cost
- 0.600
Reported quantities
- FAR proxy (GFA / lot)
- 0.80
- site utilisation
- 0.897
- gross floor area, m²
- 374.6
- footprint, m²
- 187.3
- carbon proxy, kgCO₂e/m² (A1–A3)
- 325
- cost index / m² (unitless)
- 2.37
- worst habitable room, daylight
- 0.200
- circulation share of GFA
- 27%
- open space, net of parking
- 60%
- courtyard void, m²
- 0.0
- plumbing stacks
- 3
- footprint corners
- 4
- preferred adjacencies met
- 50%
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 | 2BR | 151.9 | 9 |
| U1 | 3BR | 112.9 | 11 |
| U2 | 2BR | 109.9 | 9 |
All 29 rooms
| Room | Type | Dwelling | Storey | m² | w × h m |
|---|---|---|---|---|---|
| STAIR:U0@0 | circulation | U0 | 0 | 13.2 | 6.75 × 1.95 |
| STAIR:U0@1 | circulation | U0 | 1 | 13.2 | 6.75 × 1.95 |
| U0@0#0 | entry | U0 | 0 | 3.8 | 1.40 × 2.70 |
| U0@0#1 | living | U0 | 0 | 14.4 | 5.35 × 2.70 |
| U0@0#3 | bathroom | U0 | 0 | 29.0 | 4.40 × 6.60 |
| U0@0#2 | kitchen | U0 | 0 | 15.5 | 2.35 × 6.60 |
| U0@1#6 | bedroom secondary | U0 | 1 | 22.6 | 6.75 × 3.35 |
| U0@1#7 | bathroom | U0 | 1 | 15.2 | 6.75 × 2.25 |
| U0@1#5 | bedroom primary | U0 | 1 | 25.0 | 6.75 × 3.70 |
| STAIR:U1@0 | circulation | U1 | 0 | 8.0 | 1.40 × 5.70 |
| STAIR:U1@1 | circulation | U1 | 1 | 8.0 | 1.40 × 5.70 |
| U1@0#1 | living | U1 | 0 | 11.6 | 4.00 × 2.90 |
| U1@0#3 | kitchen | U1 | 0 | 11.2 | 4.00 × 2.80 |
| U1@0#0 | entry | U1 | 0 | 8.3 | 1.45 × 5.70 |
| U1@0#2 | dining | U1 | 0 | 10.5 | 3.05 × 3.45 |
| U1@0#4 | bathroom | U1 | 0 | 6.9 | 3.05 × 2.25 |
| U1@1#8 | bedroom secondary | U1 | 1 | 17.7 | 3.10 × 5.70 |
| U1@1#6 | bedroom primary | U1 | 1 | 11.8 | 3.15 × 3.75 |
| U1@1#7 | bedroom secondary | U1 | 1 | 8.4 | 2.25 × 3.75 |
| U1@1#9 | bathroom | U1 | 1 | 10.5 | 5.40 × 1.95 |
| STAIR:U2@0 | circulation | U2 | 0 | 21.8 | 9.90 × 2.20 |
| STAIR:U2@1 | circulation | U2 | 1 | 21.8 | 9.90 × 2.20 |
| U2@0#0 | entry | U2 | 0 | 4.4 | 1.30 × 3.35 |
| U2@0#1 | living | U2 | 0 | 12.6 | 3.75 × 3.35 |
| U2@0#2 | kitchen | U2 | 0 | 10.4 | 3.10 × 3.35 |
| U2@0#3 | bathroom | U2 | 0 | 5.9 | 1.75 × 3.35 |
| U2@1#6 | bedroom secondary | U2 | 1 | 8.7 | 2.60 × 3.35 |
| U2@1#5 | bedroom primary | U2 | 1 | 12.4 | 3.70 × 3.35 |
| U2@1#7 | bathroom | U2 | 1 | 12.1 | 3.60 × 3.35 |